Service manual

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EPSON TERMINAL PRINTER

EPL-N2000

SERVICE MANUAL

EPSON

4006861

Summary of content (188 pages)

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EPSON TERMINAL PRINTER EPL-N2000 SERVICE MANUAL EPSON 4006861
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NOTICE All right reserved. Reproduction of any part of this manual in any form wharsoever without SEIKO EPSON's express written permission is forbidden. The contents of this manual are subject to change without notice. All efforts have been made to ensure the accuracy of the contents of this manual. However, should any errors be detected, SEIKO EPSON would greatly appreciate being informed of them.
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PRECAUTIONS Precautionary notations throughout the tect are categorized relative to 1) personal injury, and 2) damage to equipment: DANGER Singnals a precaution which, if ignored, could ressult in serious or fatal personal injury, Great caution should be exercised in performing procedures preceded by a DANGER headings. WARNING Singnals a precaution which, if ignored, could result in damage to equipment.
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SAFETY INFORMATION This printer is a page printer which operates by means of a laser. There is no possibility of danger from the laser, provided the printer is operated according to the instructions in this manual provided. Since radiation emitted by the laser is completely confined within protective housings, the laser beam cannot escape from the machine during any phase of user operation. For United States Users; [Laser Safety1 This printer is certified as a Class 1 Laser product under the U.S.
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For Finland. Sweden Users: " VAROITUS Laitteen kayttaminen muulla kuin t&a kayttoohjeessa mainitulla tavalla saattaa altistaa kayttajan turvallisuusluokan 1 ylittavalle nakymattomalle lasersateiylle. I VARNING Om apparaten anvands pa annat satt %-I i denna bruksanvisning specificerats, kan anvandaren utsattas for osynlig laserstrhlning, som over&rider gransen for laser klass 1. For Finland. Sweden Service PeoDle VAROITUS Avattaessa ja suojalukitus ohitettaessa olet alttiina nakymattomalle lasersateilylle.
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For Europe lASERKlASSE1NACHIEC825 CUBS1 LMERPRODUCTTOIEC825 WE1 UWR PR0DUKTI.H.T. IEC825 LUOKANl lAsERwlE [Label inside printer] The following laser safety label will be attached inside the printer as shown below. For Denmark, Finland, Sweden, and Norway III CALITION - INVISIBLE LASER RADIATION WHEN OPEN AVOID &X'GSURE TO SEAM IJNSlCnTBARE IASE-LUNG WENN ASDECKUNG GEOFFNET NlCHl DEM SlRAHL AUSSEIZEN ADVAflSEL- USYNUG IASERSTliUNG N&l DEKSEL iPNES UNNGA EKSPONERlNG FGR .
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For Finland. Sweden Users: " VAROITUS Laitteen kayttaminen muulla kuin " kayttoohjeessa mainitulla tavalla saattaa altistaa kayttajan turvallisuusluokan 1 ylittavalle nakymattomalle lasersateiylle. I VARNING Om apparaten anvands pa annat satt %-I i denna bruksanvisning specificerats, kan anvandaren utsattas for osynlig laserstrhlning, som over&rider gransen for laser klass 1. For Finland. Sweden Service PeoDle VAROITUS Avattaessa ja suojalukitus ohitettaessa olet alttiina nakymattomalle lasersateilylle.
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REVISION SHEET Revision Issued Date Rev.
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TABLE OF CONTENTS CHAPTER 1. CHAPTER 2. CHAPTER 3. CHAPTER 4. CHAPTER 5. CHAPTER 6.
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Chapter 1 Product Description Table of Contents 1.1 FEATURES 1-1 1.2 SPECIFICATIONS 1-4 1.2.1 Basic Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 1.2.2 Electric Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7 1.2.3 Specifications for Reliability and Durability. . . . . . . . . . . . . . . . . . . . . . . . 1-8 1.2.4 Environmental Conditions for Operation (Including Consumables) . . . . . 1-9 1.2.
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1.5 MAIN COMPONENTS 1.5.1 C207 MAIN Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5.2 PWB-A Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5.3 PWB-E Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5.4 PWB-F Board Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5.5 Paper Takeup Roller Unit . . . . . . . . . . . . . . . . . . . .
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List of Tables Table 1-1. Options and Consumables for EPL-N2000. . . . . . . . . . . . . . . . . . . . 1-2 Table 1-2. Paper Feed Sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 Table 1-3. Available Paper Sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5 Table 1-4. Paper Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6 Table 1-5. Usability of Special Paper . . . . . . . . . . . . . . . . . . .
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1.1 FEATURES The EPSON EPL-N2000 is a non-impact page printer that combines a semi-conductor laser with electrophotographic technology.
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Product Description EPL-N2000 Service Manual Table 1-1 lists the consumables and optional units available for the EPL-N2000. Table 1-1.
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EPL-N2000 Service Manual Product Description Table 1-1.
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Product Description EPL-N2000 Service Manual 1.2 SPECIFICATIONS This section provides statistical data for the EPL-N2000. 1.2.1 Basic Specifications ❏ Type Desktop page printer ❏ Printing method Laser beam scanning and dry electrophotographic process ❏ Resolution 600 dpi ❏ Printing speed Single-sided print: Duplex print: 20.0 ppm*1, 11.0 ppm*2 12.0 ppm*1, 6 .0 ppm*2 ❏ First print time Single-sided print: Duplex print: 16.0 seconds*1, 18.0 seconds*2 26.0 seconds*1, 36.
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EPL-N2000 Service Manual ❏ Product Description Paper sizes Front tray See Table 1-3. Width: 92 mm to 330.2 mm (3.26" to 13") Length: 140 mm to 483 mm (5.5" to 19") Table 1-3.
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Product Description ❏ Paper types EPL-N2000 Service Manual Normal paper: Recycled paper: Special paper: Specific paper: 60 to 90 g/m2 (16 to 24 lb) 60 to 90 g/m2 (16 to 24 lb) Transparencies (OHP), letterhead, envelopes, labels, thick paper (91 to 157 g/m2, 24 to 42 lb) A3+ 328 mm × 453 mm, 75 to 80 g/m2 (20 to 21 lb) Table 1-4. Paper Types U.S. Recommended Normal Paper Paper Standard Paper Recycled Paper Special Paper Europe Minolta Bond 20 lb.
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EPL-N2000 Service Manual ❏ Printable area: Product Description See Figure 1-2. E A B 4 mm C F Paper transprt Direction Printable Area D 4 mm 4 mm 4 mm Figure 1-2. Printable Area For A3+ paper (E X F) : 297 × 420 mm ( 12.12 X 17.14 ") The maximum printable area with good image quality (E X F) : 323 × 443 mm (12.72 × 17.44"). Printable area can vary, depending on the emulation. Note: 1.2.2 Electrical Specifications Table 1-6.
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Product Description EPL-N2000 Service Manual 1.2.3 Specifications for Reliability, Durability, and Maintenance ❏ MPBF* (mean prints between failures): over 60,000 sheets or 3,000 hours * MPBF indicates an average number of pages printed before occurrence of problem requiring replacement or service. Table 1-7.
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EPL-N2000 Service Manual Product Description 1.2.4 Environmental Conditions for Operation (Including Consumables) ❏ Temperature: 10 to 35o C (50 to 90o F) ❏ Humidity: 15 to 85% RH (withour condensation) ❏ Altitude: 2500 m (8202’) or less ❏ Atmospheric pressure: 760 hpa or more ❏ Levelness: 1o or less ❏ Illuminance: 3,000 lux or less (must not be exposed to direct sunlight.) ❏ Surrounding space required: See Figure 1-3.
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Product Description EPL-N2000 Service Manual 1.2.5 Environmental Conditions for Storage and Transportation Table 1-9. Environmental Conditions for Storage Storage life 18 months after production, packed.
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EPL-N2000 Service Manual Product Description 1.2.6 Specifications for the Imaging Cartridge ❏ Cartridge life: * This number is printable pages in continuous print mode using A4 or letter size paper at a 5% image ratio (black/white ratio). Life varies, depending on the image ratio and printing mode, such as continuous/intermittent, density and toner saver. 10,000 sheets * Table 1-10. Environmental Conditions for Storage and Transportation Storage life 18 months after production, packed.
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Product Description EPL-N2000 Service Manual 1.2.
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EPL-N2000 Service Manual Product Description 1.2.10 Controller Specifications ❏ CPU: RISC type CPU: Clock speed: MB86935-50 47.6 MHz ❏ RAM: Standard: Max.
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Product Description EPL-N2000 Service Manual Table 1-11.
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EPL-N2000 Service Manual Product Description Table 1-12.
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Product Description EPL-N2000 Service Manual In LJ4 Emulation Mode (Bitmap Fonts): 28 Symbol Sets Roman-8 *1 Roman Extension Legal IBM-US ANCI ASCII JIS ASCII IRV French ECM94-1 8859-9 ISO 8859-2 ISO IBM-DN Swedish 2 HP German German PcMultilingual Norwege 2 Italian UK Norwege 1 IBM Spanish HP Spanish French 2 Chines Spanish Swedish Portuguese IBM Portuguese In LJ4 Emulation Mode (Scalable Fonts): 27 Symbol Sets Roman-8 *1 ECM94-1 8859-2 ISO 8859-9 ISO MsPublishing Desktop WiE.
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EPL-N2000 Service Manual Product Description 1.3 INTERFACE SPECIFICATIONS The following interfaces are available for EPL-N2000 printer. ❏ Standard: Parallel B type I/F Parallel C type I/F Network I/F ❏ Optional: LocalTalk / Serial Module * Type-B I/F * Connector for LocalTalk is built in on the I/F bracket, along with connectors for standard I/F. NOTE: Type-B I/F Board (C82331*) (standard) is inserted in the Type-B interface slot.
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Product Description EPL-N2000 Service Manual Table 1-13. Timing in Compatibility Mode Description *1 Minimum (1) DATA setup 0.5 µs (2) DATA hold 0.5 µs (3) STROBE↑ pulse width↓ 0.5 µs Typical Maximum 0s (4) BUSY↓ to STROBEX↓ 0.5 ms (5) STROBEX↓ to BUSY↑ 0s (6) BUSY↓ to STROBEX↓ (7) ACKX pulse width 0.5 µs (8) ACKX↑ to BUSY↓ 0s (9) BUSY↑ to PE↑ or ERRX↓ 2 ms* (10) PE↓ or ERRX↑ to BUSY↓ 2 ms* 1 µs*2 0.
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EPL-N2000 Service Manual Product Description Table 1-14. Pin Assignments for Parallel B Type I/F (Continued) Pin Compatibility mode 31 Nibble mode nInit 32 Fault ECP mode I/O nReverseReq I nPeriphReq O nDataAvail 33 NC — 34 NC — 35 NC — 36 nSelctIn IEEE1284 active O NC: Not connected. CG: CHASSIS -GND ❏ Signal descriptions StrobeX (in) Compatibility mode: Latch pulse used to read print data. DATA is valid when the signal is LOW.
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Product Description EPL-N2000 Service Manual BUSY (out) Compatible mode: HIGH status indicates the printer is not ready to accept data. Negotiation phase: Reflects busy status in forward channel. Reverse data transfer phase: Nibble data bit is 3, then 7 in nibble mode. Reverse idle phase: Reflects busy status in forward channel. ECP mode: Used for flow control in forward channel. Also used in reverse mode as the 9th data bit, which indicates whether signal data information is data or command.
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EPL-N2000 Service Manual PeriLH (out) Product Description [SE specification] Only defined for IEEE 1284-C connector. Init (in) Compatible mode: As long as this signal is LOW, the Busy signal remains HIGH. 1. The printer processes data received before the signal goes LOW. 2. The printer ignores a LOW strobe pulse input while the signal is LOW. Negotiation phase: Always HIGH. Reverse data transfer phase: Always HIGH. ECP mode: Set to LOW when switching to reverse channel.
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Product Description EPL-N2000 Service Manual 1.3.1.2 Parallel Interface C Type Specifications ❏ Type: Bidirectional parallel I/F (IEEE-1284) ❏ Operational modes: Compatibility, nibble, ECP modes (Byte mode and EPP mode are not supported.
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EPL-N2000 Service Manual Product Description 1.3.1.3 Network Interface Type-B I/F Board (C82331*) (standard) is installed in the Type-B interface slot. NovellNetware 3.
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Product Description EPL-N2000 Service Manual 1.3.
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EPL-N2000 Service Manual Product Description TTY-TXD Current loop signal: HIGH impedance (SPACE) between pins 17 and 24 or X-ON signal sent across pins 17 and 24 indicates that the printer is ready to accept data; LOW impedance (MARK) or X-OFF signal sent indicates that the printer is busy. TTY-RXD Return Current loop signal: Current return for pin 17. TTY-TXD Return Current loop signal: Input data current loop. TTY-RXD Current loop signal: Current return to pin 25.
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Product Description EPL-N2000 Service Manual 1.3.3 Optional LocalTalk Interface ( LocalTalk/Serial Modelu) This printer can use an optional LocalTalk interface module. Type: LocalTalk Signal level: Same as RS-422 signal level Protocol: X-ON/X-OFF (cannot be combined with DTR control) DTR control (cannot be combined with X-ON/X-OFF) Transfer speed: 230.4K bps Table 1-18. LocalTalk Interface Pin Assignments Pin No.
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EPL-N2000 Service Manual Product Description 1.4 OPERATING INSTRUCTIONS This section describes the functions performed through the control panel, such as test print, hexadecimal dump, and the SelecType functions. 1.4.1 Control Panel This section gives instructions for the control panel, which consists of an LCD, 8 buttons, and 6 indicator lights.
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Product Description EPL-N2000 Service Manual (4) SelecType Mode LED (Green Light) The printer is in the SelecType mode when this light is ON. (5) Continue LED (Yellow Light) When this light is ON, it indicates an error has occurred that can be cleared by pressing the Continue button. (6) DATA LED (Yellow Light) ON: Indicates received data is stored in the printer and has not been printed out.
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EPL-N2000 Service Manual Product Description (12) SelecType/Alt Selects One Touch Mode 1 or 2. Press this button repeatedly to scroll modes in the order: SelecType Mode, One Touch Mode 1, One Touch Mode 2, and Normal Mode. (13) Continue/Reset If you press this button while the Continue LED is flashing, it clears the error. Pressing this button while the On Line LED is OFF puts the printer back in Ready status.
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Product Description EPL-N2000 Service Manual Table 1-19.
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EPL-N2000 Service Manual Product Description Table 1-19. SelecType Options (Continued) Menus CONFIG MENU Items BiRITech Medium, Dark, Off, Light TONER SAVE Off, On DENSITY 3,4,5,1,2 TOP OFFSET –9.0 to 0.0 to 99.0 mm in steps of 0.5 mm –9.0 to 0.0 to 150.0 mm in steps of 0.
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Product Description EPL-N2000 Service Manual Table 1-19.
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EPL-N2000 Service Manual Product Description Table 1-19. SelecType Options (Continued) Menu GL2 Item GLMODE GLlike, LJ4GL2 SCALE OFF, A0, A1, A2, A3 ORIGIN CORNER, CENTER PEN Pen0 , Pen1, Pen2*4 to Pen16*4 END Butt, Square, Triangular, Round JOIN Mitered, Miteredbeveled, Triangular, Round, Beveled , None PEN0 0.05 to 0.35 to 5.00 mm in steps of 0.05 mm 0.05 to 0.35 to 5.00 mm in steps of 0.05 mm PEN1 4 0.05 to 0.35 to 5.00 mm in steps of 0.05 mm 4 PEN3* 0.05 to 0.35 to 5.
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Product Description EPL-N2000 Service Manual Table 1-19. SelecType Options (Continued) Menu FX I239X 1-34 Item Available Options FONT Courier, Roman, Orator S, Sans-serif, Prestige, Script , OCR B PITCH 10 CPI, 12 CPI, 15 CPI, Prop CONDENSED OFF, ON T-MARGIN 0.40 to 0.50 to 1.50 inch in steps of 0.05 inch TEXT 1 to 62*5 to 66*4 to available lines (Maximum, 111) CG TABLE Pc USA, Italic, PcMultilin, PcPortuguese, PcCanFrenc, PcNordic, PcTurkish2, Pc.E.
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EPL-N2000 Service Manual Product Description Notes: Underlined values in boldface show factory settings. *1: Appears only when the optional EPSONScript Level 2 Post Script ROM SIMM (C83226*)is installed. *2: Appears when the optional LocalTalk serial interface is installed in serial interface mode. *3: Appears when the optional lower cassette unit is installed. *4: Factory setting for Europe and Pacific. *5: Factory setting for North America. *6: Appears when Type B interface is installed.
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Product Description EPL-N2000 Service Manual 1.4.3 Service Mode This printer has the following 5 service modes. ❏ Hexadecimal dump mode ❏ Format Flash Card ❏ Flash ROM update ❏ ❏ EEPROM Initialize mode Page Counter clear 1.4.3.1 Hexadecimal Dump Mode ❏ Button: Form Feed button with Power Switch On. ❏ Indication on LCD: HEX Dump ( This message appears after RAM check is completed.) ❏ Function: Converts received data into hexadecimal format (from 00 to FF) and prints it out.
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EPL-N2000 Service Manual Product Description 1.4.4 Display of Messages This section describes messages on LCD. They are divided into 4 categories; status messages, error messages, warning messages, and service call error messages. 1.4.4.1 Status Messages The LCD normally indicates the printer’s status and the software mode. Table 1-20. Status Messages Message Reset All Reset Reset to Save Warming Up Standby Ready Writing Card Writing SIMM EPL-N2000 Rev.
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Product Description EPL-N2000 Service Manual 1.4.4.2 Error Messages If any of the following errors occurs, it will be displayed on the LCD. The error must be cleared immediately, using the measures shown in the following tables. Table 1-21. Error Messages Error Messages and Descriptions Operator Error Card Status A card is inserted or removed while the printer is ON. This message is not displayed when removal of an IC card creates a service call error.
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EPL-N2000 Service Manual Product Description Table 1-21. Error Messages (Continued) Error Messages and Descriptions Feed Jam Status LED Paper has not been fed properly from the specified paper entrance. If paper is also jamming in the paper path, it is considered a Paper Jam error. On Line OFF Continue OFF Form Feed Keeps the same status as before 1. 2. Measure 3. Remove the paper from the paper entrance.
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Product Description EPL-N2000 Service Manual Table 1-21. Error Messages (Continued) Error Messages and Descriptions Manual Feed Status LED Measure bbbb The printer has received data when Manual Feed is set to ON through the SelecType mode or a command. On Line OFF Continue Flashing Form Feed Keeps the same status as before This error can be cleared using any of the following methods: 1. Press the On Line button after placing "bbbb"size paper in the MP tray.
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EPL-N2000 Service Manual Product Description Table 1-21. Error Messages (Continued) Error Messages and Descriptions Paper Out aaaaa bbbbb*1 1. Measure 2. When "aaaa" is LC1 or LC2: The error is cleared by inserting the "bbbb" size paper into cassette "aaaa". When "aaaa" is MP: The error is cleared by inserting the "bbbb" size paper in MP tray.
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Product Description EPL-N2000 Service Manual Table 1-21. Error Messages (Continued) Error Messages and Descriptions Print Overrun Status LED The time required to develop an image exceeds the print speed because the current data is too complicated. On Line OFF: ON Size Ignore = OFF Size Ignore = ON Continue Flashing Form Feed Keeps the same status as before. This error can be cleared using any of the following methods: [SelecType: Auto Cont = OFF in the Config menu] 1. Press the Continue button.
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EPL-N2000 Service Manual Product Description Table 1-21. Error Messages (Continued) Error Messages and Descriptions Mem Overflow Measure [SelecType: Auto Cont = OFF in the Config menu] The error is cleared by using any of the following methods: 1. Press the Continue button. Results vary by case, as described below. If the error occurred on the first side of a duplex page, the paper is ejected leaving the reverse side blank. Data for the reverse side is printed on the reverse side of the next sheet.
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Product Description EPL-N2000 Service Manual Table 1-21. Error Messages (Continued) Error Messages and Descriptions Illegal Card Status LED Measure An IC card that has been inserted will not work with this printer. On Line OFF Continue OFF Form Feed Keeps the same status as before. 1. 2. Turn the printer off and remove the card. Then turn the printer back on. Remove the IC card with the printer on to make the Continue LED flash. Then press the Continue button while the Continue LED is flashing.
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EPL-N2000 Service Manual Product Description Table 1-21. Error Messages (Continued) Error Messages and Descriptions Write Error SIMM Status LED This error can be caused by any of 3 situations described below: 1. No data can be written onto the SIMM. 2. Writing is not completed properly. 3. The SIMM is not inserted. On Line OFF Continue OFF Form Feed Keeps the same status as before. 1. 2. Measure 3. Turn the printer off and remove the card. Then turn the printer back on.
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Product Description EPL-N2000 Service Manual 1.4.4.3 Warning Messages If any of the following warning errors occurs, it is displayed on the LCD. The printing process itself is not affected by any of the warning messages, which is soon replaced by a Ready message. Table 1-22. Warning Messages Warning Messages and Descriptions Image Optimum Status LED Measure The printer could not print at the density selected, due to lack of memory, and it simplified the print image. On Line, Continue, Form Feed 1. 2.
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EPL-N2000 Service Manual Product Description Table 1-22. Warning Messages (Continued) Warning Messages and Descriptions Check Serial I/F Status LED Measure This warning is given after detection of an error such as a framing error, parity error, overrun error, or break character error when the serial I/F is installed. Data sent from serial I/F is ignored while the warning is indicated and it does not stop until a warm boot is performed.
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Product Description EPL-N2000 Service Manual Table 1-22. Warning Messages (Continued) Warning Messages and Descriptions (Continued) Format Error Card Status LED Measure Data can be written onto the card inserted, but the card hasn’t been formatted. This message can be ignored when the card is new. If the card, however, has already data stored, the card is under either of following conditions: 1. Data wasn’t written properly. 2. The memory stored is damaged.
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EPL-N2000 Service Manual Product Description 1.4.4.4 Messages at Power On Table 1-23. Power On Messages Status Messages and Description ROM Check Status System ROM being checked. RAM Check XX . XMB Status System RAM being checked. " RAM Check XX . XMB OK" is indicated when RAM check is completed. If memory is added, be sure that "XX.X" match the size of the added RAM memory. Self Test Status Self Test, Reset being performed. 1.4.4.
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Product Description EPL-N2000 Service Manual 1.4.5 Printer Sharing This section describes printer sharing. This printer has two methods of printer sharing: port fixed mode and auto sense mode. These modes are selected through SelecType. 1.4.5.1 Port Fixed Mode When the printer is in port fixed mode, only one interface port is active. Data from other port is ignored. The interface to be used can be selected through SelecType.
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EPL-N2000 Service Manual Product Description 1.4.6 Controller RAM Status RAM on the controller of this printer uses dynamic memory allocation to make the best use of the memory. Therefore, no portion is rigidly allocated for user-defined settings such as font download, form overlay, and buffer size, and the total amount of memory available changes depending on new values. When data exceeds memory capacity during a process, the error message Mem Overflow appears on the LCD.
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Product Description EPL-N2000 Service Manual 1.4.9 PGI (Photo and Graphics Improvement ) PGI enhances the print quality of halftones and tone gradations, generally used in photographic and graphic images. Compared with conventional systems, which use one white or black dot as the minimum unit, PGI technology divides a single dot into 3 parts for a more precise image. Therefore, the amount of data required for this technology is twice as large as the previous method. 1.4.
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EPL-N2000 Service Manual Product Description 1.5 MAIN COMPONENTS To simplify maintenance and repair, the main components of the EPL-N2000 have been designed for easy removal and replacement.
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Product Description EPL-N2000 Service Manual 1.5.1 Main Controller (C207 MAIN Board) The C207 MAIN board is the main controller board for the EPL-N2000.
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EPL-N2000 Service Manual Product Description 1.5.2 PWB-A Board This unit is the engine control board. The engine is driven by the commands from the C207 MAIN board, including information from the sensors. Figure 1-12. PWB-A Board 1.5.3 PWB-E Board PWB-E board is the power supply board, which converts the AC line voltage into +24 and 5 VDC voltages. This board also supplies AC line voltage to the fusing unit to heat the heater lamp. CAUTION Never touch variable volumes RV1 and RV2.
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Product Description EPL-N2000 Service Manual 1.5.4 PWB-F Board Unit The PWB-F is the high-voltage supply circuit board. It applies +24 VDC to the development bias, OPC drum charge bias, and image transfer bias. Never touch variable volumes VR1, VR2, VR3, VR5, VR6. They are for factory use only. Figure 1-14. PWB-F Board 1.5.5 Paper Takeup Roller Unit This unit is used to take up paper from a paper tray or cassette. Figure 1-15. Paper Takeup Roller 1-56 Rev.
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EPL-N2000 Service Manual Product Description 1.5.6 Registration Roller Assembly This unit is used to prevent paper skew prior to transfer process. Paper reaches the register, pushes against the register, and then is pushed back to the correct position by its natural bounce. Figure 1-16. Registration Roller 1.5.7 Transfer Unit The transfer unit transfers the toner image from the surface of the PC drum onto the paper.
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Product Description EPL-N2000 Service Manual 1.5.8 Print Head Unit (Optical Unit) The Print Head unit consists of the laser diode (semi-conductor laser), the polygon motor which drives the polygon mirror for laser scanning, mirrors, and the lenses. The optical unit emits the laser beam onto the surface of the PC drum via the polygon mirror, mirrors, and lenses to produce a latent electrostatic image. Figure 1-18. Print Head Unit 1.5.
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EPL-N2000 Service Manual Product Description 1.5.10 Drive Unit The drive unit, which consists of the main motor and a number of transmitting gears, drives the paper transport rollers, Imaging cartridge, and fusing unit. The registration roller clutch, paper takeup solenoid, and interlock switch are installed inside the unit. Figure 1-20. Drive Unit 1.5.11 Imaging cartridge The Imaging cartridge contains mechanisms to control charging, developing, and cleaning.
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Product Description EPL-N2000 Service Manual 1.5.12 Cassette Unit The cassette unit is used to feed paper from a cassette into the printer. The paper empty sensor detects paper outs, and the paper near empty sensor detects the amount of paper remaining in the cassette. Paper takeup roller Transport roller Paper empty sensor Paper size switches Paper near empty sensor Figure 1-22. Cassette Unit 1-60 Rev.
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CHAPTER 2 OPERATING PRINCIPLES Table of Contents 2.1 Engine Operation 2.1.1 Printing Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.1.1.1 Charging Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.1.1.2 Exposure Process. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.1.1.3 Developing Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.1.1.4 Transfer Process . . . . . .
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EPL-N2000 Service Manual Operating Principles 2.1 Engine Operation This section describes the functions and operating principles of the EPL-N2000 engine. 2.1.1 Printing Process The whole printing process for this printer is divided into the seven stages described in Table 2-1. Table 2-1. Printing Process for the EPL-N2000 Steps Process Description 1 Charging Charges the surface of the PC drum with static electricity. A rayon brush is used.
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Operating Principles EPL-N2000 Service Manual 2.1.1.1 Charging Process In the charging process, the high voltage unit applies negative DC voltage as the bias voltage to the rayon charging brush. Then, the PC drum is evenly charged with the negative electric charge applied from the charging brush. DC bias Charging Brush –1150 V Charge Bias:-1150V (DC) PC Drum PC Drum Ground Figure 2-2. Charging Process 2-2 Rev.
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EPL-N2000 Service Manual Operating Principles 2.1.1.2 Exposure Process In the exposure process, the laser unit emits laser beams onto the PC drum surface to create an electrostatic latent image. There is a polygon mirror installed inside the laser unit. The mirror, which is rotated by the scanner motor, reflects laser beams from the laser diode toward the drum, on which the laser beams run, scanning from one edge to the other.
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Operating Principles EPL-N2000 Service Manual 2.1.1.3 Developing Process Paper goes through this process to convert electrostatic image produced through the charging and exposure processes into visible image. It is accomplished using toner and 3 bias voltages; developingt bias, toner bias, and seal bias. Developing bias feeds toner evenly on the sleeve roller. The amount of toner fed onto the roller is controlled by developing bias, which enables the printer to adjust printing tones.
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EPL-N2000 Service Manual Operating Principles 2.1.1.4 Transfer Process In the transfer system, toner image created on the PC drum through the developing process is transferred to the paper. The roller transfer system is used for this printer. When the paper goes through the PC drum and the transfer roller, the roller provides the paper with positive voltage applied from the high voltage unit. Then, the toner image on the drum transfers to the paper being attracted by the positive voltage.
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Operating Principles EPL-N2000 Service Manual 2.1.1.5 Fusing Process The fusing unit permanently fixes the toner image, transferred from the PC drum, onto the paper. The fusing system this printer uses is the heat roller fusing system. The toner on the paper is melted by the upper fusing roller, which is heated by the heater lamp, then the toner is fixed by pressure from the paper traveling through the upper and lower fusing rollers.
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EPL-N2000 Service Manual Operating Principles 2.1.1.6 Cleaning Process Toner remaining on the PC drum after transfer process is scraped off with the cleaning blade, placed in close contact with the surface of the PC drum. The toner that has been scraped off is collected back into the toner collection box inside the Imaging cartridge. 2.1.2 Engine Mechanism Operation This section describes the major units in the engine and their mechanisms. 2.1.2.
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Operating Principles EPL-N2000 Service Manual 2.1.2.2 Paper Feeding Mechanism ❏ Multi Purpose Tray The drive for the tray is transmitted to the push-down cam by way of the main motor, paper takeup clutch, and paper takeup roller. The paper takeup roller and push-down cam rotate once when the the paper takeup solenoid is energized. While turning, the push-down cam pushes down the stack of paper on the paper lifting plate. Then the paper takeup roller picks up a sheet of paper.
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EPL-N2000 Service Manual ❏ Operating Principles Lower Cassette Tray The drive for the lower cassette tray is transmitted from the printer to the transport roller via the transmission gear, paper takeup clutch, and paper takeup roller. The lower paper cassette unit is controlled by the engine control board (PWB-A) through control board PWB-C.
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Operating Principles EPL-N2000 Service Manual 2.2 Controller Mechanism 2.2.1 Engine Control This section gives information on the engine controller, power supply board, and the high-voltage supply board. The engine is controlled by the PWB-A board. Figure 2-9 shows an engine controller connection diagram.
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EPL-N2000 Service Manual Operating Principles 2.2.1.1 Main Motor Mechanism and Control The main motor, which is located in the driving unit, transmits drive force to the rollers in the printer. A main motor malfunction is detected if any of following conditions is detected: 1. The lock signal (CN5-1) goes OFF (LOW), and the OFF status continues for 1 second or more. 2. The lock signal (CN5-1) does not go OFF (LOW) within 1 second after the main motor goes ON (CN5-2=Low).
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Operating Principles EPL-N2000 Service Manual 2.2.1.3 Fusing Control The thermistor detects the surface temperature of the fusing roller and inputs the corresponding analog voltage to the PWB-A board. The heater lamp is turned ON and OFF by a signal output from PWB-A, based on the temperature detected by the thermistor. A fusing error occurs if any of following conditions is detected: 1. The thermistor voltage varies only in the range of 0.
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EPL-N2000 Service Manual Operating Principles 2.2.1.4 Sensor Control This section gives information on the sensors and how they are used to detect abnormal operations. Figure 2-13 shows the sensor layout. 1 3 2 4 5 6 7 8 9 24 23 10 22 11 28 12 13 25 27 14 15 21 26 20 19 29 18 17 16 Figure 2-13. Sensor Locations See Table 2-3 for sensor descriptions. Table 2-3. Sensor Descriptions No. Description No.
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Operating Principles EPL-N2000 Service Manual A paper jam is detected if any of following conditions occurs: ❏ During feeding from the MP tray, the paper takeup sensor (PC1) fails to go OFF within approximately 1.6 seconds after the paper takeup roller has started rotating. ❏ During feeding from the paper cassette, the registration sensor (PCR1) does not go OFF within approximately 1.4 seconds* after the paper takeup roller has started rotating. * 2.
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EPL-N2000 Service Manual Operating Principles 2.2.2 Video Control Operation 2.2.2.1 C207 MAIN Board Operation The video controller receives print data and converts it into corresponding image signal before transmitting them to the engine controller. Figure 2-14 shows a block diagram of C207 MAIN board. The C207 MAIN board contains a wide variety of ICs such as the CPU, memory, ASIC , and driver.
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Operating Principles EPL-N2000 Service Manual Table 2-1 lists the main components of the C207 MAIN board and their functions. Table 2-1. Functions of Main Board Components Component Location Function MB86936 RISC CPU IC1 The CPU, which operates at 47.6 MHz manages the video controller operation.
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EPL-N2000 Service Manual Operating Principles 2.2.2.2 Video Controller Operation Principles Print data and commands transmitted from the host computer through the network, parallel, or optional I/F are read and then stored in the input buffer in DRAM. If the buffer size (which varies depending on the SelecType setting) is increased, the host computer is released sooner.
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CHAPTER 3 DISASSEMBLY AND ASSEMBLY Table of Contents 3.1 General Description 3.1.1 Precautions for Disassembly /Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . 3.1.2 Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.1.3 Specifications for Screws . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.1.4 Service Checks after Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.1.
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List of Tables Table 3-1. Table 3-2. Table 3-3. Table 3-4. Tools. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Screw Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Screw and Washer Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Checks after Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 3-2 3-2 3-3 List of Figures Figure 3-1. Rear Cover Hook Locations . .
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EPL-N2000 Service Manual Disassembly and Assembly 3.1 GENERAL INFORMATION This chapter describes the disassembly/assembly procedures to be used for replacing the main assemblies of the EPL-N2000. 3.1.1 Precautions for Disassembly/Assembly Follow the precautions below when disassembling/assembling the printer. WARNING ❏ Disconnect the power cord before disassembling/assembling the printer.
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Disassembly and Assembly EPL-N2000 Service Manual 3.1.3 Specifications for Screws In the following sections, abbreviations are used for small parts such as screws and washers. Table 3-2 lists these abbreviations. Table 3-3 lists screw and washer types. CAUTION Be sure to use the correct type of screw since many different types of screws are used in this printer. Table 3-2.
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EPL-N2000 Service Manual Disassembly and Assembly 3.1.4 Service Checks after Repair Check the repaired unit using the list in Table 3-4 before returning the printer to the user to ensure that repair and shipping are accomplished appropriately. Table 3-4.
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Disassembly and Assembly EPL-N2000 Service Manual 3.1.5 Servicing Operations This section describes the special service modes and combinations of switches used to enter each mode. The modes listed in this section are only to be operated by qualified service people for repair. Therefore the specifications for these modes were eliminated from the user’s guide.
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EPL-N2000 Service Manual Disassembly and Assembly Use the 2 other modes listed below when you need information to analyzing the cause of a persistent error related to a firmware malfunction. ❏ Resetting of the CPU after a service call error has occurred. When a "Exxx" or "C2000" error has occurred, it can be cleared using this function without turning the printer Off and back On. ■ Switches to use: Press the SelecType, Menu, Item, Value, and Enter switches.
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Disassembly and Assembly EPL-N2000 Service Manual 3.2 DISASSEMBLY AND ASSEMBLY This section describes and illustrates the procedures for disassembling and assembling the components of the EPL-N2000. The assembly procedures are not described, except for special notes where necessary, because assembly can be accomplished by performing disassembly in reverse order. 3.2.
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EPL-N2000 Service Manual Disassembly and Assembly 3.2.1.5 Control Panel Removal 1. Remove the FFC from the C207 MAIN Board. 2. Remove 2 CCS screws (3 X 8) from the right and upper side of the panel. 3. Remove the Control Panel. 3.2.1.6 Right Front Cover Removal 1. Loosen 1 CCS screw (3 X 8) from the upper part of the right front cover. 2. Remove the Right Front Cover. 3.2.1.7 Front Cover Removal 1. Loosen 2 CCS screws (3 X 6) from the upper part of the front cover. 2.
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Disassembly and Assembly EPL-N2000 Service Manual CCS Screw (3X8) Top Cover A CCS Screw (3X8) Control Panel Shoulder Screw CCB Screw (3X8) Right Cover CCS Screw (3X8) CCS Screw (3X8) Cover CCS Screw (3X8) A CCS Screw (3X6) CCS Screw Right Front Cover Rear Cover CCS Screw (3X8) CCS Screw (3X6) Front Cover Left Cover CCS Screw (3X8) Front Side Figure 3-2. Outer Cover Removal 3-8 Rev.
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EPL-N2000 Service Manual Disassembly and Assembly 3.2.2 Fusing Unit Removal 1. Remove 2 CCS screws ( 3 X 8 ) securing the fusing unit through the rear cover and rear panel. 2. Disconnect the connectors from the fusing unit. ( 2 from the right , 1 from the left ) 3. Remove 2 CCS screws (3 X 8) Securing the fusing unit. 4. Remove the fusing unit. Fusing Unit Front side Rear side Figure 3-3. Fusing Unit Location Fusing Unit Rear Panel Rear Cover CCS Screws (3 X 8) Rear Side Figure 3-4.
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Disassembly and Assembly EPL-N2000 Service Manual CCS Screws (3 X 8) Front Side Fusing Unit (viewed from the top) Connectors Refer to the assembly note below. Rear Side Connector Figure 3-5. Fusing Unit Removal (2) Assembling Note When reassembling the fusing unit, adjust the notch of the fusing unit with the shaft of the gear. 3-10 Rev.
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EPL-N2000 Service Manual Disassembly and Assembly 3.2.3 PWB-E Board (Power Supply Board) Removal 1. Remove the outer covers. (Refer to Section 3.2.1.) 2. Disconnect 5 connectors ( NC 1 to CN5) on the electrical board. 3. Remove 6 CCS screws (3X 6) from the PWB-E Board. 4. Remove the PWB-E Board. PWB-E Board C207 MAIN Board PWB-A Board Front side High Voltage Supply Board Figure 3-6. Unit Location (1) PWB-E Board CCS Screws (3X8) Front Side Figure 3-7. PWB-E Board Removal Rev.
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Disassembly and Assembly EPL-N2000 Service Manual 3.2.4 Main Controller Board Removal Refer to Figure 3-6. 3.2.4.1 Shield Frame Removal 1. Remove the outer covers. (Refer to Section 3.2.1.) 2. Remove 15 CBS screws (3X6) securing the shield frame. 3. Remove the shield frame. Shield Frame CBS Screw (3X6) CBS Screw (3X6) CBS Screw (3X6) Right Side Front Side Figure 3-8. Shield Frame Removal 3.2.4.2 C207 MAIN Board Removal 1. Remove the outer covers. (Refer to Section 3.2.1.) 2.
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EPL-N2000 Service Manual Disassembly and Assembly 3.2.5 Rear Panel Removal 1. Remove the outer covers. (Refer to Section 3.2.1.) 2. Remove the C207 MAIN Board. (Refer to Section 3.2.4 .) 3. Remove the 6 CCS screws (3X6) securing the rear panel. 4. Lift up the Rear Panel to release 2 hooks, then remove the panel. Be sure to disconnect the fan connector from the High Voltage Supply (PWB-F) Board Unit. Rear Panel CCS Screw (3X6) PWB-E Board CN2 CCS Screw (3X6) Fan Connector Rear Side 3-10.
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Disassembly and Assembly EPL-N2000 Service Manual 3.2.6 Transfer Unit Removal 1. Remove the outer covers. (Refer to Section 3.2.1.) 2. Remove the Fusing unit. (Refer to Section 3.2.2.) 3. Remove the C207 MAIN Board. (Refer to Section 3.2.4.) 4. Remove the rear panel. (Refer to Section 3.2.5.) 5. Remove 1 CCB screw (3X8) securing the transfer unit. 6. Remove the Transfer Unit by pushing aside the left frame in the direction indicated by the arrow.
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EPL-N2000 Service Manual Disassembly and Assembly 3.2.7 High Voltage Supply (PWB-F) Board Unit Removal Refer to Figure 3-6. 1. Remove the outer covers. (Refer to Section 3.2.1.) 2. Remove the Fusing Unit. (Refer to Section 3.2.2 .) 3. Remove the C207 MAIN Board. (Refer to Section 3.2.4.) 4. Remove the Rear Panel. (Refer to Section 3.2.5.) 5. Remove the Transfer Unit. (Refer to Section 3.2.6.) 6. Disconnect the CN1 of the High Voltage Supply Board Unit. 7.
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Disassembly and Assembly EPL-N2000 Service Manual 3.2.8 Printhead Unit Removal Front Side Printhead Unit Figure 3-13. Printhead Unit Location 3.2.8.1 Harness Cover Removal 1. Remove the outer covers. (Refer to Section 3.2.1.) 2. Remove 2 CCS screws (3X8) securing the harness cover. CCS Screw (3X8) Harness Cover Printhead Unit Figure 3-14. Harness Cover Removal 3-16 Rev.
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EPL-N2000 Service Manual Disassembly and Assembly 3.2.8.2 Printhead Unit Removal 1. Remove the outer covers. (Refer to Section 3.2.1.) 2. Remove the harness cover. (Refer to Section3.2.8.1.) 3. Disconnect the connector (CN2) on the PWB-A Board. 4. Remove 2 CB(S-P1) screws (3X20) and a CCS screw (3X12) securing the Printhead. 5. Remove the Printhead. Connector CN2 Print heat Unit CCS Screw (3X12) CB(S-P1) Screw Figure 3-15. Printhead Unit Removal Rev.
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Disassembly and Assembly EPL-N2000 Service Manual 3.2.9 Paper Empty Sensor Assembly Removal 1. Remove the outer covers. (Refer to Section 3.2.1.) 2. Remove the harness cover. (Refer to Section 3.2.8.1.) 3. Disconnect the connectors (CN3, CN6, CN9) on the PWB-A Board. 4. Remove 3 CCS screws (3X6) securing the Paper Empty Sensor Assembly. 5. Remove the Paper Empty Sensor Assembly. Detection Lever Paper Empty Sensor Assembly Paper Takeup Roller Unit Front Side Figure 3-16.
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EPL-N2000 Service Manual Disassembly and Assembly CAUTION Be careful handling the Paper Empty Sensor Assembly so the detection lever doesn’t break. Detection Lever Rear Side Rev.
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Disassembly and Assembly EPL-N2000 Service Manual 3.2.10 Paper Takeup Roller Assembly Removal Refer to Figure 3-16. 1. Open the top cover. 2. Remove the Fusing Unit. 3. Release the hooks on both edges of the the Transport guide, then remove the Transport guide. 4. Remove 1 CB(S-P1) screw (3X8) securing the Paper Takeup Roller Assembly. 5. Remove the Paper Takeup Roller Assembly. Transport Guide Front Side Push Hook Figure 3-18.
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EPL-N2000 Service Manual Disassembly and Assembly 3.2.11 Paper Takeup Roller Unit Removal 1. Remove the outer covers. (Refer to Section 3.2.1.) 2. Remove the Fusing Unit. (Refer to Section 3.2.2 .) 3. Remove the Transfer Unit. (Refer to Section 3.2.6.) 4. Remove the High Voltage Supply Board.(Refer to Section 3.2.7.) 5. Remove the Paper Empty Sensor Assembly (Refer to Section 3.2.9.) 6. Remove 1 CCB screw (3X8) securing the Paper Lifting Plate. 7.
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Disassembly and Assembly EPL-N2000 Service Manual Paper Takeup Roller Unit CCS Screw (3x8) Front Side Refer to the figure below. Figure 3-21. Paper Takeup Roller Removal Assembly Note When reinstalling the Paper Takeup Roller Unit, fit the pins on the Paper Takeup Roller into the corresponding holes in the Drive Unit.
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EPL-N2000 Service Manual Disassembly and Assembly 3.2.12 Registration Roller Assembly 1. Remove the outer covers. (Refer to Section 3.2.1.) 2. Remove the Fusing Unit. (Refer to Section 3.2.2 .) 3. Remove the Transfer Unit. (Refer to Section 3.2.6.) 4. Remove the High Voltage Supply Board. (Refer to Section 3.2.7.) 5. Remove the Paper Empty Sensor Assembly. (Refer to Section 3.2.9.) 6. Remove the Paper Takeup Roller Unit. (Refer to Section 3.2.11.) 7.
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Disassembly and Assembly EPL-N2000 Service Manual 3.2.13 PWB-A Board Unit Removal Refer to Figure 3-6. 1. Remove the outer covers. (Refer to Section 3.2.1.) 2. Remove the Fusing Unit. (Refer to Section 3.2.2 .) 3. Remove the C207 MAIN Board. (Refer to Section 3.2.4.) 4. Remove 2 CCS screws (3X6) securing the PWB-A Board Unit. 5. Remove the PWB-A Board Unit. PWB-A Board Drive Unit Front Side Right Side CCS Screw (3X6) CCS Screw (3X6) Figure 3-23.
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EPL-N2000 Service Manual Disassembly and Assembly 3.2.14 Drive Unit Removal 1. Remove the outer covers. (Refer to Section 3.2.1.) 2. Remove the Fusing Unit. (Refer to Section 3.2.2.) 3. Remove the C207 MAIN Board. (Refer to Section 3.2.4.) 4. Remove the Rear Panel. (Refer to Section 3.2.5.) 5. Remove the Transfer Unit. (Refer to Section 3.2.6.) 6. Remove the High Voltage Supply Board.(Refer to Section 3.2.7.) 7. Remove the Printhead Unit (Refer to Section 3.2.8.) 8.
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Disassembly and Assembly EPL-N2000 Service Manual Figure 3-26. Drive Unit Gear Engagement 3-26 Rev.
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EPL-N2000 Service Manual Disassembly and Assembly 3.2.15 Heater Lamp Removal 3.2.15.1 Left Fusing Lamp Cover Removal 1. Remove the outer covers. (Refer to Section 3.2.1.) 2. Remove the Fusing Unit. (Refer to Section 3.2.2 .) 3. Remove 1 CCS screw (3X8) securing Left Fusing Lamp Cover. 4. Remove the Left Fusing Lamp Cover by turning it in clockwise direction. Fusing Unit (Viewed from the Left Edge) Left Fusing Lamp Cover Rea Side Left Side CCS Screw (3X8) Figure 3-27.
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Disassembly and Assembly EPL-N2000 Service Manual 3.2.15.3 Heater Lamp Removal 1. Release the heater lamp as shown (A) in Figure 3-30. 2. Remove the Heater Lamp from the Fusing Unit. Fusing Roller Heater Lamp Actuator Thermistor Thermoatat Upper Fusing Roller Lower Fusin Roller Paper Exit Sensor Rear Side Figure 3-29. Unit Location (3) (A) Fusing Unit Heater Lamp (1) Push (2) Rear Side Figure 3-30. Heater Lamp Removal CAUTION ❏ Be careful not to break the tube lamp when handling it.
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EPL-N2000 Service Manual Disassembly and Assembly Assembly Note Note the direction in which the Heater Lamp is installed. Make sure that the lamp edge with the voltage mark on it is set to the right side of the Fusing Unit. Fusing Unit (Right edge) Voltage Mark XV Heater Lamp Rev.
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Disassembly and Assembly EPL-N2000 Service Manual 3.2.16 Paper Exit Sensor Removal Refer to Figure 3-29. 1. Remove the outer covers. (Refer to Section 3.2.1.) 2. Remove the Fusing Unit. (Refer to Section 3.2.2 .) 3. Disconnect the connector for the Paper Exit Sensor. 4. Remove the Paper Exit Sensor. 5. Remove the actuator spring. 6. Slide the actuator in the direction indicated by the arrow, then remove it.
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EPL-N2000 Service Manual Disassembly and Assembly 3.2.17 Lower Fusing Roller Removal Refer to Figure 3-29. 1. Remove the outer covers. (Refer to Section 3.2.1.) 2. Remove the Fusing Unit. (Refer to Section 3.2.2 .) 3. Remove 2 CCS screws (3X10) securing the rear fusing cover. 4. Push the lock stoppers indicated by the arrow. 5. Remove the rear fusing cover. 6. Remove the Lower Fusing Roller.
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Disassembly and Assembly EPL-N2000 Service Manual 3.2.18 Separator Removal 1. Remove the outer covers. (Refer to Section 3.2.1.) 2. Remove the Fusing Unit. (Refer to Section 3.2.2 .) 3. Remove the Lower Fusing Roller. 4. Remove the springs that secure the separators to the hooks. 5. Slide the separating rolls, and remove them from the separators. 6. Remove the stoppers. 7. Slide and raise the separators to a right angle, and pull them upward to remove.
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EPL-N2000 Service Manual Disassembly and Assembly 3.2.19 Thermistor Removal Refer to Figure 3-29. 1. Remove the outer covers. (Refer to Section 3.2.1.) 2. Remove the Fusing Unit. (Refer to Section 3.2.2 .) 3. Remove the Heater Lamp. (Refer to Section 3.2.15.) 4. Remove the Lower Fusing Roller. (Refer to Section 3.2.17.) 5. Remove 2 shoulder screws securing the front fusing cover. 6. Remove the front fusing cover. 7. Remove CPS screw (3X10) securing the thermistor. 8. Remove the thermistor.
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Disassembly and Assembly EPL-N2000 Service Manual 3.2.20 Thermostat Removal Refer to Figure 3-29. 1. Remove the outer covers. (Refer to Section 3.2.1.) 2. Remove the Fusing Unit. (Refer to Section 3.2.2 .) 3. Remove the Heater Lamp. (Refer to Section 3.2.15.) 4. Remove the Lower Fusing Roller. (Refer to Section 3.2.17.) 5. Remove the front fusing cover. (Refer to Section 3.2.19.) 6. Remove 2 CB(S-P1) screws (3X6) securing the thermostat. 7 Remove the thermostat.
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EPL-N2000 Service Manual Disassembly and Assembly 3.2.21 Upper Fusing Roller Removal Refer to Figure 3-29. 1. Remove the outer covers. (Refer to Section 3.2.1.) 2. Remove the Fusing Unit. (Refer to Section 3.2.2 .) 3. Remove the Heater Lamp. (Refer to Section 3.2.15.) 4. Remove the Lower Fusing Roller. (Refer to Section 3.2.17.) 5. Remove the front fusing cover. (Refer to Section 3.2.19.) 6. Remove 2 G rings from the right and left edges. 7. Remove the gear, ring, and bushings. 8.
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Disassembly and Assembly EPL-N2000 Service Manual 3.2.22 Main Motor Removal 1. Remove the Drive Unit. (Refer to Section 3.2.15.) 2. Remove 3 CCB screws (3X8) securing the frame inside the Drive Unit. 3. Remove 2 CCS screws (3X6) securing the right frame outside the Drive Unit. 4. Remove the frames. 5. Remove 4 CCS screws (3X6) securing the main motor inside the Drive Unit. 6. Remove the main motor. Drive Unit (Inside) CCB Screw (3X8) Frame Front Side CCB Screw (3X8) Figure 3-37.
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EPL-N2000 Service Manual Disassembly and Assembly 3.2.23 Interlock Switch Removal 1. Remove the main motor. (Refer to Section 3.2.22.) 2. Remove the E ring for the right frame. 3. Remove 10 CCB screws (3X8) securing the right frame. 4. Remove the right frame. 5. Remove 2 CB(S-P1) screws securing the interlock switch, along with the bracket. Drive Unit (outside) CCB Screw (3X8) Refer to the figure below.
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Disassembly and Assembly EPL-N2000 Service Manual 3.2.24 Paper Takeup Solenoid Removal 1. Remove the right frame for the Drive Unit. (Refer to Section 3.2.23.) 2. Remove CCB screw (3X8) securing the solenoid. 3. Remove the solenoid. Drive Unit (Inside) Right Frame Front Side Solenoid (Refer to the figure below.) Figure 3-41. Paper Takeup Solenoid Removal (1) CCB Screw (3X8) Figure 3-42. Paper Takeup Solenoid Removal 3-38 Rev.
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Chapter 4 Adjustment No adjustment is required in this product.
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CHAPTER 5 TROUBLESHOOTING Table of Contents 5.1 Overview 5-1 5.2 Self Diagnostic Function 5-1 5.3 Troubleshooting 5-3 5.3.1 Troubleshooting Abnormal Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3 5.3.2 Troubleshooting Print Quality Problems . . . . . . . . . . . . . . . . . . . . . . . . . 5-11 List of Tables Table 5-1. Table 5-2. Table 5-3. Table 5-4. Table 5-5. Table 5-6. Table 5-7. Table 5-8. Table 5-9. Table 5-10. Table 5-11. Table 5-12. Table 5-13. Table 5-14. Table 5-15.
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Troubleshooting 5-2 EPL-N2000 Service Manual Rev.
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EPL-N2000 Service Manual Troubleshooting 5.1 OVERVIEW Types of errors that may produce a similar symptom in a page printer, such as poor print quality or abnormal operation, vary widely, making identification of failed parts and components more difficult. To overcome such problems for this printer, this section describes troubleshooting procedures using the printer’s built-in self-diagnostic function for easy and efficient repair. 5.
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Troubleshooting EPL-N2000 Service Manual Table 5-1. Service Call Error (Continued) Error Type C A, B, D, F to Z 5-2 Error Code Description 1190 1200 1210 1300 1320 1400 1999 2000 Cartridge access error EEPROM write error EEPROM write counter overflow Type B Interface error LocalTalk / Serial module error Engine initialization error Hardware error Software error XXXX Software error Rev.
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EPL-N2000 Service Manual Troubleshooting 5.3 TROUBLESHOOTING This section describes troubleshooting abnormal operations and print quality problems. 5.3.1 Troubleshooting Abnormal Operations When the printer detects an error, use Table 5-2 to identify the symptom and the reference table number. If a service call error has occurred, follow the steps below before taking an action. 1. Note the error code. 2. Turn off the printer. 3. Turn the printer back on to see if the same message still appears.
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Troubleshooting EPL-N2000 Service Manual Symptom Message The printer does not operate at all. Printer Condition The main motor does not rotate when the printer is on. Threrefore, the RAM check is not started. Reference Table 5-3 RAM check does not start. RAM check is not started when the printer is turned on. 5-4 "Printer Open" The paper cover is closed, but the LCD still displays "Printer Open." 5-5 "Paper Out" Paper is loaded, but the LCD displays "Paper Out.
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EPL-N2000 Service Manual Troubleshooting Table 5-3. The Printer Does Not Operate at All Step Cause Checkpoint Finding Solution 1 Connector CN4 on the Is the cable from the PWB-E Board PWB-A board may not be properly connected? connected properly. Yes Connect the cable properly. 2 The fuse on the PWB-E board has blown. Yes Replace the fuse. 3 Connector CN4 on the Is the cable from the PWB-A board PWB-E board may not be properly connected? properly connected. Yes Connect the cable properly.
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Troubleshooting EPL-N2000 Service Manual Table 5-6. The LCD Displays "Paper Out" Step Cause Checkpoint Finding Solution 1 The paper empty sensor actuator may be bad. Does the sensor operate smoothly? Is the actuator in good condition? No Reposition the actuator or replace it. 2 The paper empty sensor may be bad. Check the outputs of pin 7 of CN6 on the PWB-A board. Correct levels: HIGH: No paper is loaded. LOW: Paper is loaded. Are the outputs correct? No Replace the PE1 sensor. Table 5-7.
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EPL-N2000 Service Manual Troubleshooting Table 5-8. The LCD Displays "Feed Jam" Step Cause Checkpoint Finding Solution 1 The main motor may be bad. When turning on the printer, check No the output of pin 2 of CN5 on the PWB-A board. Is the output HIGH? Replace the main motor. 2 Paper takeup solenoid may be bad.
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Troubleshooting EPL-N2000 Service Manual Table 5-11. The LCD Displays "Service Req. E0003" Step Cause Checkpoint Finding Solution 1 The connector may be connected improperly. Is CN2 on the PWB-E board properly connected ? No Connect it properly. 2 The thermistor may be bad. Is operation OK when the thermistor is replaced? Yes Replace the thermistor. 3 The heater lamp may be bad. Turn the printer on when the fusing No unit is cold. Does the heater lamp light up ? Replace the heater lamp.
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EPL-N2000 Service Manual Troubleshooting Table 5-14. The LCD Displays SERVICE REQ. E0006/0009 Step Cause Checkpoint Finding Solution 1 The connectors may be connected improperly. Are the connectors on the PWB-A board properly connected? No Connect them properly. 2 The PWB-A board may be bad. Is operation OK when the PWB-A board is replaced? Yes Replace the PWB-A board. 3 The print head may be bad. Is operation OK when the print head is replaced? Yes Replace the print head unit.
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Troubleshooting EPL-N2000 Service Manual Table 5-19. The LCD Displays SERVICE REQ. C1120/1121/1122/1123 Step Cause Checkpoint Finding Solution 1 The PROG ROM may be bad. Is operation OK when the PROG ROM is replaced? C1120: Replace IC30 C1121: Replace IC30 C1122: Replace IC29 C1123: Replace IC29 Yes Replace the ROM (IC29/30). If ICs 1, 2, 3, and 4 are attached, replace them instead. 2 C207 MAIN board may be bad. --- --- Replace the main board. Table 5-20 The LCD Displays "Service Req.
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EPL-N2000 Service Manual Troubleshooting 5.3.2 Troubleshooting Print Quality Problems This section describes how to isolate print quality problems from their possible causes and remedy them, as shown in Table 5-24. Table 5-24. Print Quality Problems Symptom Black/white lines (vertical) Horizontal lines Possible Cause Solution Dust, lint in the print head unit Clean the print head unit (white lines) window. Replace the print head unit.
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Troubleshooting Foggy background EPL-N2000 Service Manual High development bias Replace the high-voltage unit (PWB-F). End of PC drum life Replace the Imaging cartridge. Table 5-24. Print Quality Problems Symptom No image printed (Blank /completely black ) Possible Cause High development bias Solution Replace the high-voltage unit (PWB-E). Replace the Imaging cartridge. Low development bias Offset image 5-12 Improper transfer Clean the transfer unit or the fusing unit.
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CHAPTER 6 MAINTENANCE Table of Contents 6.1 Maintenance 6-1 6.1.1 User Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1 6.1.2 Service Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1 List of Tables Table 6-1. Instructions for User Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1 Table 6-2. Instructions for Service Maintenance . . . . . . . . . . . . . . . . . . . . . . . . .
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EPL-N2000 Service Manual Maintenance 6.1 MAINTENANCE This section gives information necessary for maintaining the printer in its optimum condition. Appropriate maintenance after troubleshooting, as well as after the occasional replacement of worn out units, is essential to prevent potential problems from occurring. Maintenance items described in this section are divided into two subsections: user maintenance and service maintenance (performed only by qualified repair personnel). 6.1.
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Appendix Table of Contents A.1 Connector Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1 A.1.1 Engine Controller Board (PWB-A Board) . . . . . . . . . . . . . . . . . . . . A-4 A.1.2 Video Controller Board (C207 MAIN Board) . . . . . . . . . . . . . . . . . . A-7 A.2 Exploded Diagrams. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-18 A3 Circuit Board component Layout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Figure A-16. C207 MAIN Board (CPU) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure A-17. C207 MAIN Board (ROM/ROM-SIMM) . . . . . . . . . . . . . . . . . . . . Figure A-18. C207 MAIN Board (RAM/RAM-SIMM) . . . . . . . . . . . . . . . . . . . . . Figure A-19. C207 MAIN Board (Interface) . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure A-20. C207 MAIN Board (Video I/F) . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure A-21. C207 MAIN Board (MISC>) . . . . . . . .
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EPL-N2000 Service Manual Appendix A.1 CONNECTOR PIN ASSIGNMENTS Figures A-1 illustrates the interconnection of the main controller board.
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Appendix EPL-N2000 Service Manual Table A-1.
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EPL-N2000 Service Manual Appendix Table A-2. C207 MAIN Board Connector Specifications Connector Rev.
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Appendix EPL-N2000 Service Manual A.1.
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EPL-N2000 Service Manual Appendix Table A-6 PWB-A CN4 (PWB-E) Pin 1 2 3 4 5 6 7 8 Signal Name PW_FAN HEATER GND +24V GND GND +5V +5V I/O Description O O - Power source fan drive signal Heater lamp drive signal Ground +24 V Ground Ground +5 V +5 V Table A-7 PWB-A CN5 (Main Motor) Pin 1 2 3 4 Signal Name MOTOR_LOCK MAIN_MOTOR +24V GND I/O I O - Description Motor lock signal Motor drive signal Motor drive power source Ground Table A-8 PWB-A CN6 (Toner Empty Sensor: PE1) Pin 1 2 3 4 5 6 7 Signal Na
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Appendix EPL-N2000 Service Manual Table A-10 PWB-A CN9 (Imaging Cartridge Fuse) Pin 1 2 Signal Name I/O I/O +5V I/C_NEW Description Fuse detection/ fuse blow power source New cartridge detection / fuse blow signal Table A-11 PWB-A CN10 (PWB-F) Pin 1 2 3 4 5 6 7 8 9 10 11 Signal Name +5V FU_FAN +24V GND PCR1 PC1 HV_T_CTL HV_B_CTL HV_CT B_REM SS_HL_CTL I/O O I I O O O Description +5 V Fan motor drive +24 V Ground Registration sensor detection signal Paper takeup sensor detection signal Transfer bia
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EPL-N2000 Service Manual Appendix Table A-14 PWB-A CN13 (Paper Exit Sensor, Thermistor, Registration Clutch)) Pin 1 2 3 4 5 6 7 Signal Name ANODE GND +PC3 THERMISTOR +5V +24V R_CLUTCH I/O I I - Description PC3 anode Ground Paper exit sensor detection signal Thermistor detection sensor +5 V +24 V (clutch) Registration clutch drive signal A.1.
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Appendix EPL-N2000 Service Manual Table A-16 C207 MAIN Board CN5 (I/O Bus) Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41~60 A-8 Signal Name PCLK RST GND GND GND GND DB0 DB1 DB2 DB3 DB4 DB5 DB6 DB7 AB0 AB1 AB2 AB3 AB4 CS RD WR IREQ NMI DREQ DTCT +5V +5V +5V +5V TXD+ TXDRXD+ RXDDTR CTS NC NC LCD SWRD Not used I/O I I/O I/O I/O I/O I/O I/O I/O I/O I/O O O O O O O I I O I I I - Description System clock for 85230-10 Reset signal GND GN
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EPL-N2000 Service Manual Appendix Table A-17 C207 MAIN Board CN7 (CPU Bus) Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 Rev.
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Appendix EPL-N2000 Service Manual Table A-18 C207 MAIN Board CN9, CN10 (RAM-SIMM) Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 A-10 Signal Name VSS DQ0 DQ16 DQ1 DQ17 DQ2 DQ18 DQ3 DQ19 VDD NC A0 A1 A2 A3 A4 A5 A6 NC DQ4 DQ20 DQ5 DQ21 DQ6 DQ22 DQ7 DQ23 A7 NC VDD A8 A9 RAS3 RAS2 NC NC NC NC VSS CAS0 CAS2 CAS3 CAS1 RAS0 RAS1 NC WE NC DQ8 DQ24 DQ9 DQ25 DQ10 DQ26 DQ11 I/O I/O I/O I/O I/O I/O I/O
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EPL-N2000 Service Manual Appendix Table A-18 C207 MAIN Board CN9, CN10 (RAM-SIMM) (continued) Pin 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 Rev.
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Appendix EPL-N2000 Service Manual Table A-19 C207 MAIN Board CN11 (ROM Bus) Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 A-12 Signal Name +5V +5V +5V +5V D0 D16 D1 D17 D2 D18 D3 D19 D4 D20 D5 D21 D6 D22 D7 D23 D8 D24 D9 D25 D10 D26 D11 D27 D12 D28 D13 D29 D14 D30 D15 D31 GND GND CSI0X CSI2X CS00X CS01X RDX WRX BWE0X BWE2X BWE1X BWE3X A0 A1 A2 A3 A4 A5 A6 I/O I I I I I I I I I I I I I I I I
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EPL-N2000 Service Manual Appendix Table A-19 C207 MAIN Board CN11 (ROM Bus) (continued) Pin 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 Rev.
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Appendix EPL-N2000 Service Manual Table A-20 C207 MAIN Board CN12 (ROM-SIMM) Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 A-14 Signal Name VSS DQ0 DQ16 DQ1 DQ17 DQ2 DQ18 DQ3 DQ19 VDD RD A0 A1 A2 A3 A4 A5 A6 A10 DQ4 DQ20 DQ5 DQ21 DQ6 DQ22 DQ7 DQ23 A7 A19 VDD A8 A9 A20 EEP RESET A21 A22 A23 VSS A11 A13 A14 A12 CS0 CS1 A18 WR A17 DQ8 DQ24 DQ9 DQ25 DQ10 DQ26 DQ11 I/O I/O I/O I/O I/O I/O I/O I/
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EPL-N2000 Service Manual Appendix Table A-20 C207 MAIN Board CN12 (ROM-SIMM) (continued) Pin 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 Rev.
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Appendix EPL-N2000 Service Manual Table A-21 C207 MAIN Board CN14 (IC Card Slot) Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 A-16 Signal Name GND D3 D4 D5 D6 D7 CE1 A10 0E A11 A9 A8 A13 A14 WE RDY/BCYX +5V VPP1 A16 A15 A12 A7 A6 A5 A4 A3 A2 A1 A0 D0 D1 D2 WP GND GND CD1 D11 D12 D13 D14 D15 CD2 RFSH NC NC A17 A18 A19 A20 A21 +5V VPP2 A22 A23 A24 I/O I/O I/O I/O I/O I/O O O O O O O O O O O
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EPL-N2000 Service Manual Appendix Table A-21 C207 MAIN Board CN14 (IC Card Slot) (continued) Pin 56 57 58 59 60 61 62 63 64 65 66 67 68 Signal Name A25 NC RESET WAIT NC REG BVD2 BVD1 D8 D9 D10 CD2 GND I/O O O O I/O I/O I/O - Description Address bit 25 Not used Reset signal Not used Not used Card select Not used Not used Data bit 8 Data bit 9 Data bit 10 Not used GND Table A-22 C207 MAIN Board CN15 (Control Panel) Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Rev.
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Appendix EPL-N2000 Service Manual A.2 Exploded Diagrams Figure A-2. Housing A-18 Rev.
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EPL-N2000 Service Manual Appendix Figure A-3. Frames Rev.
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Appendix EPL-N2000 Service Manual Fifure A-4. Paper Takeup Section (1) A-20 Rev.
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EPL-N2000 Service Manual Appendix Figure A-5. Paper Takeup Section (2) Rev.
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Appendix EPL-N2000 Service Manual Figure A-6. Drive Unit A-22 Rev.
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EPL-N2000 Service Manual Appendix Fifure A-7. Transfer Unit Rev.
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Appendix EPL-N2000 Service Manual Figure A-8. Fusing Unit A-24 Rev.
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EPL-N2000 Service Manual Appendix Figure A-9. Paper Cassette Unit Rev.
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Appendix EPL-N2000 Service Manual Figure A-10. Lower Paper Cassette (Standard) A-26 Rev.
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EPL-N2000 Service Manual Appendix Figure A-11. Lower Paper Cassette (Optional) Rev.
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Appendix EPL-N2000 Service Manual Figure A-12. Optional Duplex Unit A-28 Rev.
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EPL-N2000 Service Manual Appendix A.3 CIRCUIT BOARD COMPONENT LAYOUT Figure A-13. C202 MAIN Board Component Layout (Front) Rev.
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Appendix EPL-N2000 Service Manual Figure A-14. C207 MAIN Board Component Layout (Rear) A-30 Rev.
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EPL-N2000 Service Manual Appendix 8 14 C1 19 CN1 79 PJ9 C2 R5 PJ4 R3 PJ2 . 1 PJ15 1 C1 PJ7 PJ6 PJ1 C4 PJ3 PJ5 PJ 14 PJ 13PJ 1 PJ11 PJ17 PJ18 -711V C2 7 PROG EPSON R4 R2 2 PJ16 9 R11 R8 C8 2 23149 4 R1 IC1 R9 PJ12 PJ8 C9 IC2 IC6 IC4 IC3 C7 R1 PJ19 R13 R12 UNIT C3 IC5 2 2 3 1 48 IC7 ASSY . C6 IC8 C5 Figure A-15. C207 MAIN Board PROG Component Layout Rev.
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Appendix EPL-N2000 Service Manual CN7 CPU_BUS CC L L TS RK K X B E MA R R E O OT GB MR L R ME D I I I I AA AA GG GG+ + S U U A RR E R O_ E A | R R R R C C C C CC S S S S A A A A A A NN N N 5 5 E T T L NE X OC OP D WA L L L L S S S S S S I I I I 3 3 2 22 2 DD D D V V T 2 1 1 T Q C R K V GY R S 3 2 1 0 5 4 3 2 1 0 3 2 1 0 1 0 9 8 7 6 4 33321 333322 222222 21 333 2 1111 11 111 9 8765 43 0 987 365465 843217 09 210 9 8765 43 210 IC2 1 IN 2 GND OUT 3 LM3940IT-3.
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Appendix EPL-N2000 Service Manual CN12 ROM_SIMM W R N N R / C C L B V V V S S S S S S 7 6 6 6 0 9 8 7 7 3 1 2 9 V V V C C C C C C C83 5 3 1 9 0 0 R E S W E R R T U D 3 4 1 5 7 1 E C C E S S P 1 0 3 4 4 4 5 4 A A A A A A A A A A A A A A 2 2 2 2 1 1 1 1 1 1 1 1 1 1 A A A A A A A A A A 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 D D D D D D D D D D D D D D D D D D D D D D 3 3 2 2 2 2 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1 D D D D D D D D D D 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2
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Appendix D[0..31] MA[0..10] EPL-N2000 Service Manual D[0..31] MA[0..10] RAS0X RAS1X CAS_LLX CAS_LHX CAS_HLX CAS_HHX WEX RAS2X RAS3X RAS4X RAS5X Only use for 4M DRAM PJ9 S_MA00 C133 MA0 0.
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Appendix SRCLK R94 EPL-N2000 Service Manual EPRDYX PRRDYX ETBSYX STSX 33 CMDX CPRDYX PRINTX CTBSYX DB[0..7] AB[0..7] DB[0..7] AB[0..7] IC43 10 GND C146 0.
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Appendix EPL-N2000 Service Manual TODX C134 100P C135 100P C136 100P C137 100P C138 100P C139 100P DB[0..7] DB[0..7] IC37 DB0 DB1 DB2 DB3 DB4 DB5 DB6 DB7 A B 0 2 3 4 5 8 9 10 11 AB[0..7] AB[0..
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Appendix A[0..27] RM19 33/4 RM18 33/4 RM20 33/4 RM21 33/4 D[0..31] EPL-N2000 Service Manual CN13 N-BUS A[0..27] A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 A16 A17 A18 A19 A20 A21 A22 A23 A24 A25 A26 A27 D[0..
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Appendix PJ10 CJ PJ17 CJ PJ11 CJ PJ16 CJ A20 PJ1 CJ PJ15 CJ A21 PJ2 R2 CJ PJ3 R3 CJ PJ4 R4 CJ PJ5 R5 CJ PJ6 PJ13 CJ CJ EPL-N2000 Service Manual PJ18 CJ D[0..31] A[0..
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EPSON