BJC-4300 SERVICE MANUAL Canon
Application This manual has been issued by Canon Inc. for qualified persons to learn technical theory, installation, maintenance, and repair of products. This manual covers all localities where the Droducts are sold. For this reason, there may be information in this manual that does not apply to ;oIlr locality. Corrections This manual could include technical inaccuracies or typographical errors due to improvements or changes in the products.
This manual is divided into four sections, and contains information required for servicing the unit. Part 7: Safety and Precautions This section tells you how to service the unit safely. read it. It is very important, so please Part 2: Product Specifications This section outlines and specification. Part 3: Operating Instructions This section explains how to operate the unit properly. installation and service made.
Part 1: Safety and Precautions Page l- 1 l- 1 1-2 1-2 1-3 1-4 1-5 1-5 1-5 l - 5 l - 6 1-6 1-6 l - 7 l - 7 l - 7 l - 6 l - 6 l - 6 l - 9 1-9 l-10 l-10 l-10 1 -11 1 -11 l-12 l-13 1-13 1. SAFETY PRECAUTIONS 1 .I Moving Parts 1.2 Ink Stains 1.2.1 Ink path 1.2.2 Ink mist 1.3 BJ Cartridge Heat-Up 2. MACHINE PRECAUTIONS 2.1 Handling BJ Cartridges 2.1 .l Unpacking the BJ cartridge 2.1.2 Preventing clogged nozzles 2.1.3 Power on/off 2.1.4 When not using the printer 2.1.5 Ink electroconductivity 2.
2 2 2 2 2 2 -12 -13 -14 -21 -21 -24 2.3 Paper Specifications 2.3.1 Paper size 2.3.2 Paper type (Recommended) 2.3.3 Print paper 2.3.4 Printing range 2.4 Interface Specifications 2.5 Character Code Tables 2.5.1 BJ mode 2.5.2 EPSON mode Part 3: Operating instructions a 0 333333- 1 1 2 3 3 3 3- 3- 4 4 3- 7 3- 6 3- 9 3- 9 3- 9 3 -10 3 -10 3 -11 3 -13 3 -13 3 -13 3 -14 3 -14 3 -16 3 -16 3 -17 3 -20 3 -21 3 -21 3 -22 3 -23 3 -23 3 -24 3 -25 3 -25 3 -26 I. PRINTER SETUP 1 .I Equipment Check 1.
Page 4- 6 4- 7 4- 7 4- 0 4- 9 4 -10 4 -11 4 -11 4 -11 4 -12 4 -12 4 -12 4 -12 4 -15 4 -1 5 4 -16 4 -16 4 -16 4-17 4 -17 4 -17 4 -19 4 -19 4 -20 4 -21 4 -22 4 -29 4 -29 4 -30 4 -31 4 -31 4 -32 4 -34 4 -34 4 -36 4-37 4 -37 438 4 -38 4 -39 442 442 4-42 4-42 4-42 4-43 443 444 444 4-44 445 447 448 448 1.5 Power Off Flowchart 2. FIRMWARE 2.1 Interface 2.1 .I Compatible mode 2.1.2 Nibble mode 2.1.3 ECP mode 2.2 720 dpi Printing/Smoothing Feature 2.2.1 Canon extension mode 2.2.2 Emulation mode 2.
Page 5- 1 5- 1 5- 1 5- 1 5- 2 5- 2 5- 3 5- 4 5- 4 5- 4 5- 4 5- 4 5- 5 5- 5 5- 5 5- 6 5- 6 5- 6 5- 6 5- 7 5- 7 5- 6 5 -10 5 -10 5 -10 5 -10 5 -12 5 -12 5 -15 5 -30 5 -30 5 -32 5 -32 5 -32 Part 5: Maintenance 1. MAINTENANCE 1.1 Parts for Regular Replacement 1.2 Consumables 1.3 Periodic Maintenance 2 SERVICING TOOLS 2.1 List of Tools 3. GREASE APPLICATION 4. DISASSEMBLY AND REASSEMBLY 4.1 Disassembly and Reassembly 4.2 Disassembly and Reassembly Cautions 4.2.1 Waste ink absorber installation 4.2.
- I 0 D 0 Page I- 1 1-2 1-3 1-3 1-4 1-5 1-5 1-7 1-7 1-8 1-8 1-9 l-10 l-10 l-12 l-13 2- 1 2- 3 2- 3 2- 4 2- 4 2- 4 2- 5 2- 5 2- 6 2- 7 2 -13 2 -13 2 -19 2 -20 2 -20 3- 1 3- 2 3- 3 3- 3 3-4 3-4 3- 5 3- 7 3- 7 3- 6 3- 9 3 -10 3 -11 3 -12 3 -12 3 -13 3 -14 3 -17 3 -21 Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figu
0 - 0 Page 3 -22 3 -23 3 -23 3 -24 3 -26 4- 1 4- 2 4- 3 4- 4 4- 5 4- 6 4- 8 4- 9 4 -10 4 -11 4 -17 4 -19 4 -20 4 -21 4 -22 4 -23 4 -23 4 -25 4 -25 4 -26 4 -30 4 -31 4 -32 4 -33 4 -34 4 -36 4 -37 4 -38 4 -38 441 442 4 -44 4 -44 4 -45 447 5- 3 5- 4 5- 4 5- 5 5- 6 5- 7 5- 8 5- 9 5 -30 5 -32 5 -33 Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figu
Page 3 -10 3 -14 3 -16 3 -16 3 -21 3 -24 3 -25 4 -13 4 -14 4 -24 4 -26 4 -29 443 446 447 5- 6 TABLE 3TABLE 3TABLE 3TABLE 3TABLE 3TABLE 3TABLE 3TABLE 4TABLE 4TABLE 4TABLE 4TABLE 4TABLE 4TABLE4TABLE4TABLE 5- 1 2 3 4 5 6 7 1 2 3 4 5 6 7 6 1 QUICK REFERENCE FOR SElTlNG ERROR INDICATIONS DEFAULT SETrING MODES DEFAULT SETTING MODE FUNCTION SETrINGS SELF-TEST PRINT MODES HEXADECIMAL DUMP TEST PRINT DEFAULT SETTING WHEN RESETrING THE EEPROM PRINTING MODES AND HEATING METHODS (1) PRINTING MODES AND HEATING METHOD
BJC-4300 Part 1: Safety and Precautions 1 .l Moving Parts The moving parts of the printer are shown below. They include the carriage belt, idler roller, carriage, slow down gear, paper feed roller, pressure roller, eject roller, spurs. and pick-up roller. The first three parts above are driven by the carriage motor while the latter are driven by the paper feed motor. Avoid getting hair, clothing, personal ornaments, etc., caught in these moving parts.
BJC-4300 Part 7: Safety and Precautions 1.2 Ink Stains 1.2.1 Ink path Do not touch the ink path while servicing as the ink can stain hands, work table, clothing, etc. The ink path consists of the E%J cartridge nozzles, head cap, head wiper, maintenance jet receiving section, and waste ink absorber. In the case of color J3J cartridges, the cartridge’s ink outlets and joint pipes are also part of the ink path. I 1 Caution! Although the ink is non-toxic, it contains organic solvents.
BJC-4300 Part 1: Safety and Precautions Black BJ Cartridge Color BJ Cartridge Figure 1-3 Ink Path of the BJ Cartridge 1.2.2 Ink mist The E3J cartridge ejects ink onto the paper. During prolonged or heavy-duty use of the printer, the small amounts of ink mist which splatter off the paper during printing can contaminate the inside of the front cover and platen. Clean any contaminated parts with a soft moist cloth.
BJC-4300 Part 1: Safety and Precautions 1.3 BJ Cartridge Heat-Up Do not touch the BT cartridge’s aluminum plate. The aluminum plate heats up during prtnting and becomes particularly hot during prolonged and continuous printing. It can overheat also if printing is continued even after the cartridge has run out of ink. Aluminum Plate / Caution! High Temperature! Figure l-5 BJ Cartridge Aluminum Plate a NOTE The printer has a protective mechanism when the FM cartridge heats up.
BJC-4300 Part 1: Safety and Precautions 2.1 Handling BJ Cartridges 2.1.1 Unpacking the BJ cartridge Do not unpack the BJ cartridge until it is ready to be used. Before installing the BJ cartridge in the printer, remove the cap protecting the nozzles and gently peel off the protective tape. 1 2 Color BJ Cartridge Black BJ Cartridae Tape Photo BJ Cartridge Figure 1-6 Removing the BJ Cartridge Protector 2.1.2 Preventing clogged nozzles Never touch or wipe the nozzles with tissue paper, etc.
BJC-4300 Pati 1: Safety and Precautions 2.1.3 Power on/oft When the printer is turned off with the POWER button and auto power off function, the printer automatically caps the ElJ cartridge’s nozzles for their protection and to prevent ink leakage. If the DC power cord is disconnected before the printer is turned off with the POWER button, the nozzles will not be capped. In such cases, reconnect the DC power cord, start up the printer as usual, then turn off the printer with the POWER button.
BJC-4300 0 Part 1: Safety and Precautions 2.2 Handling Ink Cartridges 2.2.1 Unpacking the ink cartridge Do not unpack the ink cartridge until it is ready to be used. Before installing it in the color E?J cartridge, remove the cap covering the ink outlets. Cap \ Figure l-8 Removing the Ink Cartridge Cap 2.2.2 Preventing clogging To prevent poor ink suction due to clogging of the joint pipes, never touch the ink cartridge’s ink outlets. After removing the cap from the ink cartridge.
BJC-4300 Part 1: Safety and Precautions 2.3 Printer Precautions 2.3.1 Spur deformation prevention Do not deform the tips of the spurs. The spurs come into contact with the paper after printing. As the actual contact surface is small, any ink adhering to the spurs is minute and wiped off by the spur cleaners. Therefore any ink on the spurs is not enough to contaminate the paper as it passes.
BJC-4300 Part 1: Safety and Precautions 2.3.3 Ink leakage prevention Do not pack, transport, or store the printer without a BJ cartridge installed. Without a BJ cartridge installed, the ink in the purge unit will leak and disperse inside the printer. When packing the printer, make sure the carriage is at the capping position (the right end of the platen). The EU cartridge’s nozzles are capped automatically when the power is turned off with the POWER button.
BJC-4300 Part 7: Safety and Precautions 2.4 Scanner Precautions 2.4.1 Scanner Cartridge Protection Do not touch the scanning head of the scanner cartridge as it may affect the quality and ability of the scanning operation. When cleaning the scanner lens, wipe gently with a soft damp cloth and wipe off any excess moisture with a soft dry cloth or paper. To avoid damage caused by miscontact or static charge, do not touch the contact terminals.
BJC-4300 Pari 1: Safety and Precautions 3.1 EEPROM Data Precautions The printer keeps track of various settings, the total waste ink amount, and the total sheets printed with the black, color and photo EU cartridges. This data is stored in the EEPROM on the logic board. Note the following precautions during servicing: 1) Before servicing Check the EEPROM data with a test print. The total sheets printed can give you an idea of how much the printer has been used.
BJC-4300 Part 1: Safety and Precautions 3.2 Static Electricity Precautions ‘Ike static charge accumulated in the body from clothing can damage electrical components. To dispel the build-up of static electricity, touch a metallic object that is grounded. Be sure to do this before disassembling the printer for servicing.
BJC-4300 0 Part 1: Safety and Precautions 3.3 Disassembly and Reassembly Precautions printer is comprised of a large number of plastic parts. When disassembling the printer, take care not to break or bend plastic hooks. The Since some plastic parts contain glass fibers for extra rigidity and precision, but since their viscosity is low. plastic hooks can break easily when excessive force is used. Use a precision screwdriver, and do not pull plastic hooks with excessive force while unhooking them.
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Part 2: Product Specifications BJC-4300 1.1 Product Outline This printer is a value added, full color bubble jet desktop printer that enjoys the realization of high image printing through the implementation of the PhotoRealism concept. This printer achieves high image printing by adopting “drop modulation technology” in the color ELJ cartridge and the photo E3J cartridge. The expanded printing environment has allowed the printer to have banner printing capabilities.
BJC-4300 Part 2: Product Specifications 1.2 Features 1. Compact (desk-top size) Dimensions: 383 mm W x 231.6 mm D x 203 mm H Weight: Approx. 3.5 kg (7.7 lbs) (including color BJ cartridge) 2. Built-in AC adapter employs a high-current capable switching power supply, power saving control is not performed with print duty.) 3. Automatic power control (auto power on/ofiJ 4. High quality printing of 720 x 360 dpi (in both monochrome and black when using the special printer driver) 5.
BJC-4300 Part 2: Product SDecifications 1.3 BJ Cartridge 1.3.1 Color BJ cartridge (Multi Drop) The disposable color EJ cartridge is comprised of a 136.nozzle print head and two replaceable ink cartridge (black and color).When the ink runs out or more than 6 months elapse after the cartridge has been removed from its package, or if the print quality does not improve even after cleaning the head over five times, replace the ink cartridge.
BJC-4300 Part 2: Product Specifications 1.3.3 Photo BJ Cartridge (Multi Drop) he disposable photo J3J cartridge used for printing color photographs, integrates a 136.nozzle print head and four ink cartridges. When the ink runs out or more than 6 months elapse after the cartridge has been removed from its package, or if the print quality does not improve even after cleaning the head over five times, replace it with a new photo ESJ cartridge.
BJC-4300 Part 2: Product Specifications 1.6 Consumables 1.6.1 BJ cartridges (Color, Black, Photo) Replacement BJ cartridges are identical to those included with the printer. Color BJ Cartridge Black BJ Cartridge Photo BJ Cartridge Figure 2-7 BJ Cartridges 1.6.2 Ink cartridge (Color BJ cartridge) Replacement ink cartridges are the same as those installed in the color ink cartridge and black ink cartridge. Either cartridge can be used for half a year after the seal is opened.
BJC-4300 Part 2: Product Specifications 1.7 Option 1.7.1 Color Image Scanner Cartridge This printer can be used as a color scanner when a scanner cartridge is installed. The scanner cartridge is a replaceable scanner unit that uses a one-line 128 pixel CCD. The scanner separates each of the three RGB colors of the LED by scanning the same line three times. The color image is output by 8.bit signals (256 gradation in each RGB primary color).
BJC-4300 Part 2: Product Specifications 1.7.2 Scanning Holder The scanning holder protects the scanning document from the printer’s sharp spurs that may damage the document during feeding. Small documents can also be scanned using the scanning holder. When the printer is used as a scanner, the scanning holder must be used at all times. Figure 2-10 Scanning Holder 1.7.3 White Calibration Sheet The printer uses a white calibration sheet to perform calibration.
BJC-4300 Part 2: Product Specifications 2.1 Printer Specifications 1. Type Desk-top serial color bubble jet printer 2. Paper feeding method Auto feeding and manual feeding 3. Cut Sheet Feeder capacity Plain paper: Maximum 10 mm (approximately 100 pages of 64g/m2 paper) Envelopes: 10 envelopes (Commercial number 10 and DL) Transparencies: 50 sheets BPF: 10 sheets Glossy film/ BJ cloth: One page with the manual feeding Scanning document: Place between the scanning holder. One page with the ASF. 4.
Part 2: Product Specifications BJC-4300 11. Printing characters Typefaces: LQ&BJ mode Pitch: LQ mode M mode Character matrix: HQ mode HS mode LQ mode Character set: Roman, Gothic, Courier, prestige, Script, Draft 10. 12. 15, 17, 20 cpi, and PS 10, 12, 17 cpi ,and PS 36 (H) x 48 [v) dots 18 out of 36 (H) x 48 M dots Italic character set and Graphic character set and International character set IBM character set 1, 2 and all character set (code page 437,850, 852 860,863 and 865) BJ mode 12.
BJC-4300 Part 2: Product Specifications 16. BJ cartridge Color BJ cartridge (Multi Drop) Type: Color BJ cartridge with replaceable ink cartridges Print head: 136 nozzles (vertically-lined) Bk (64 nozzles) + Y, M, C (24 nozzles x 3) Ink colors: Black, cyan, magenta, yellow Service life: Approximately 160 pages (in the HQ mode with 1500 character pattern) with a black cartridge Approximately 90 pages (in the HQ mode) with a color cartridge (7.5% duty per color pattern) Weight: Approximately 85 g (3.
BJC-4300 Part 2: Product Specifications 2.2 Scanner Cartridge Specifications (Option) l.Tppe Cartridge replacement type color scanner 2. Image *ensor 128 pixel in one line of CCD 5. Light source 3-color LED (RGB), (alignment of red, green, blue, green, red ; five in total) Using green LED for monochrome printing 4. Scanning method Sequential RGB light source switching method 5. Scanning direction Unidirectional 6. Picture sign&II output Color Shit (256 gradation for each of RGB colors), Binary.
BJC-4300 Part 2: Product Specifications 2.3 Paper Specifications 2.3.1 Paper size Letter (8.5” x 11”) Legal (8.5” x 14”) A5 (148 mm x 210 mm) A4 (2 10 mm x 297 mm) Commercial number 10 envelope (9.5” x 4.1”) European DL-size (220 mm x 110 mm) 2.3.
BJC-4300 a Part 2: Product Specifications 2.3.4 Printing range 1)Flainpaperand specialmedia The shaded portion in the diagram below shows the printable area and recommended printing area for paper and special media. Printable Area Minimum L 3.4 mm 0.13”‘1 R 3.4 mm 0.13” T 3.0 mm 0.12” B 7.0 mm 0.27” *Feed direction Recommended Printing Area Minimum L 3.4 mm 0.13-I R 3.4 mm 0.13” T 20.5 mm 0.81” B 20.5 mm 0.81” *l :LTR is selected in the EJ setup utility pogram, L is 6.4mm(0.25”) minimum.
BJC-4300 Part 2: Product Specifications 2.4 Interface Specifications ‘Ihe parallel interface sends 8 bits (one byte) of data at a time and is transistortransistor-logic (rrz) compatible. The interface cable must be constructed of American Wire Gauge [AWG) No. 28 or larger. The maximum length of the twisted-pair shielded cable must be 2.0 m (approximately 6.6 feet). 1) Interface Type IEEE1284 compatible parallel interface 2) Data transfer 8-bit parallel interface 3) Signal voltage levels Low: 0.
BJC-4300 Part 2: Product Specifications Nibble mode No. Signal 110 No. Signal 1 HostClk Data1 Data2 Data3 Data4 Data5 Data6 Data7 Data8 PtrClk PtrBusy AckDataReq xflag HostBusy N.C.” Gnd Gnd IN IN/OUT IN/OUT IN/OUT IN/OUT IN/OUT IN/OUT IN/OUT IN/OUT OUT OUT OUT OUT IN 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 Signal Cnd Signal Gnd Signal Gnd Signal Gnd Signal Gnd Signal Gnd Signal Gnd Signal Gnd Signal Gnd Signal Gnd Signal Gnd Signal Gnd Init DataAvail N.C.” N.C.” N.C.
BJC-4300 Part 2: Product Specifications 8) Input/ output signals: Compatible Mode STROBE [Input] This signal is used to read DATA1 to DATAS. The signal becomes valid after BUSY signal goes Low and the printer outputs an ACKNLG signal. The host computer does not send the next signal until it receives ACKNLG signal. It is normally High, after becoming Low. the printer receives data. When the signal remains Low, the printer does not operate until it goes High.
BJC-4300 Part 2: Product Specifications Nibble Mode Host Clk [Input] STROBE signal to read DATA 1 to DATA 8. Negotiation phase: Trigger signal to send the protocol confirmation to the printer. DATA I-8 [Input] The printer receives data with the Host Clk signal. The state of each bit of this signal must be maintained for at least 0.5 ps from the rising edge of the Host Clk signal.
BJC-4300 Part 2: Product Specifications 1284 Actlve [Input] This signal coni%ms that the printer is a 1284 compatible device when 1284 Active signal goes High and Host Busy signal goes Low. It goes Low with the termination phase. ECP Mode Host Clk [Input] This signal handshakes with the PeriphAck signal when data is transferred form the host computer to the printer. A Low Host Clk signal indicates that data has been output along the data buses (Datal-8).
BJC-4300 Part 2: Product SDecifications Reverse Req [Input] This signal goes Low when the recovery process (data re-transmission) is taking place during data transmission from the host computer to the printer. In response to a Low Ack Reverse signal, Reverse Req signal goes High. When switching from the idle state of the forward data transmission phase to the reverse data transmission phase, i.e. data is transferred from the printer to the host computer, this signal goes Low.
BJC-4300 Part 2: Product Specifications Figure 2-14 Timing Chart (Nibble Mode) Host Ack Host Clk Periph Clk Periph Ack Periph Req Xflag Figure 2-15 Timing Chart (ECP Mode) 2-20
BJC-4300 Part 2: Product Specifications 2.5 Character Code Tables 2.5.
Part 2: Product Specifications c) Turkish Code Page 852 d) Portuguese Code Page 860 BJC-4300
BJC-4300 Part 2: Product Specifications e) Canadian French Code Pqe 863 2-23
BJC-4300 Part 2: Product Specifications 2.5.
BJC-4300 Part 2: Product Specifications c) International Character Set 2-25
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Part 3: Operating instructions BJC-4300 1.
BJC-4300 Part 3: Operating Instructions 1.2 Printer Dimensions The printer’s dimensions are shown below. Allow enough space for the printer to be used with ease. For banner printing leave a space about the size of an M-size paper in front of the printer. Also allow enough space at the back of the printer to set the banner paper. Figure 3-2 Printer Dimension a NOTE Do not place the printer in excessive heat or humidity.
BJC-4300 Part 3: ODeratina Instructions 1.3 Setup Procedure set up the printer as follows. 1.3.1 Connecting the interface cable 1) Make sure both the printer and the computer are off. 2) Connect one end of the parallel interface cable to the parallel interface connector on the back of the printer. After connecting the cable, fasten the locking arm to secure it. 3) Connect the other end of the interface cable to the parallel interface connector on the computer.
BJC-4300 Part 3: ODeratina Instructions 1.3.3 Turning on the printer Before turning on the printer, first turn on the computer and any other peripheral equipment. Make sure the DC power cord has been connected properly, then press the POWER button to turn on the printer. When turned on, the printer executes initializing operations. Finally, the carriage stops at the cartridge replacement position and the POWER indicator blinks to indicate that the printer is on standby. 1.3.
BJC-4300 Part 3: Operating Instructions 21 Instfdlim! the cartridge Open the printer’s front-cover and flip up the cartridge lock lever. Insert the cartridge into the carriage and push down the cartridge lock lever to lock the cartridge in place. When pressing the CARTRIDGE button, the beeper sounds once and the carriage moves to the capping position.
BJC-4300 Part 3: Operating Instructions 3) Replacing the cartridge Open the printer’s front cover and press the CARTRDGE button the beeper sounds once and the carriage mcwes to the replacement position. Then flip up the cartridge lock lever and remcwe the cartridge. Install another cartridge by following ‘Installing the cartridge” above. Always store an unused BJ cartridge in the E3J cartridge container. The E%J cartridge may be stored alternately in the BJ cartridge container.
BJC-4300 Part 3: Operating Instructions 1.3.5 Replacing the ink cartridge When a color E+J cartridge is used, the ink cartridges can be replaced as follows: 1) When to replace the ink cartridge Replace the ink cartridge in any of the following cases: The ink has run out, the ink cartridge has been out of its package for over six months, or the print quality does not improve even after the cartridge is cleaned five times. The color ink cartridge contains three colors.
BJC-4300 Part 3: Operating Instructions 1.3.6 BJ cartridge container A EU cartridge container for storing the BJ cartridge is packed with the printer. Always store an unused EiJ cartridge in the BJ cartridge container. The box can store one BJ cartridge only, but several containers can be joined together. a NOTE The BJ cartridge container can be attached to the printer.When storing a color J3J cartridge make sure that the black and color ink cartridges are installed.
BJC-4300 Part 3: Operating Instructions 1.4 Turning the Printer On/Off 1.4.1 Turning the printer on With the printer connected to a power source, press the POWER button to turn on the printer. When the printer turns on, the beeper sounds cmce and InitIalizIng operations are executed. If a cartridge has not been installed, the carriage will move to the cartridge replacement position and the POWER indicator blinks to indicate that a cartridge must be Installed.
BJC-4300 Part 3: Operating Instructions 1.5 Paper Settings For optimum printing, the printer has various paper settings to suit various types of paper. Set the paper selection lever before loading the paper.
Part 3: Operating Instructions BJC-4300 1.7 Name of the Parts and Their Functions The different parts of the printer and their functions are shown below. Cut Sheet Feeder Holds a stack of Aligns the cut sheets in the cut sheet feeder according to the paper size. A maximum paper width of 241 mm (9.64 in.) can be set. Autofeeds banner paper and scanning document. Open to install or remove the cartridge. set the paper thickness lever, or remove the jams paper.
BJC-4300 Part 3: Operating Instructions POWEf? Button Turns the printer on or off. POWER/ERROR Indicator This signal indicator functions _ as both the power indicator and error indicator. This indicator lights green to indicate that power is on (normal state). The indicator lights orange to indicate an error, when the printer runs out of paper, for example. RESUME Button This key has the following functions: -To recover an error, press once and release.
Part 3: Operatina Instructions BJC-4300 When carrying or transporting the printer. keep the EIJ cartridge installed in the printer or stored in the EIJ cartridge container. This prevents the ink from leaking and drying out in the nozzles 2.1 Carrying the Printer Follow the procedure below when carrying the printer. 1) Press the POWER button to turn off the printer. When the power turns off, the POWEFl indicator turns off. 2) Disconnect the interface cable.
BJC-4300 Part 3: Operating hstructions 3.1 Error indications The indicators in combination with the beeper indicate the nature of errors.
BJC-4300 Part 3: Operating instructions The errors listed in Table 3-2 are described below. User-correctable errors (Correctable by removing the paper and pressing the RESUME button). 1) Paper pick-up error Occurs when the paper cannot be fed properly. 2) Paper jam Occurs when the printed paper cannot be ejected. 3) Cartridge mode mismatch Occurs when the scanning operation is performed with a EJ cartridge installed.
BJC-4300 Part 3: ODeratina Instructions 3.2 Function Settings Use the windows driver or &I setup utility program for MS-DOS to set the function settings. The five default setting modes can be set with the POWER button after the printer is turned on. 3.2.1 Setting the default setting mode The default setting mode can be set as follows: When turning on the printer, hold down the POWER button until the beeper sounds the specified number of times. In this way, the following default setting modes can be set.
BJC-4300 Part 3: Operating Instructions 3.2.2 BJ setup utility program Save F i l e . . . Print tlode Delete Files . . . Paper Size Buffer Size *to Power Off fluto Power On P r i n t Test Patterns Printer Settings Change Ink Cartridge Clean Print Head Preset settings :I24 :Input Buffer :Disable :DisabIe I so Phe next time ~)au want to use the s e t t i n g s , just open the file and press FlB to send settinga to the printer.
Part 3: Ooerafina Instructions Em-4300 Character Set Code pages and character sets may vary according to the make of the computer and printer. For the BJ mode. Character Set 1 or set 2 can be selected. In LQ mode, epson italic or graphics set can be selected. Clean Print Head Cleans the BJ cartridge print head. If white streaks or other flaws appear on the printed page, clean the print head. Code Page Allows you to select a code page in either BJ mode or LQ mode.
BJC-4300 Part 3: Operating Instructions Print Test Patterns Prints a test pattern so you can check printer operation with the new settings you have just made. Before you execute this command, be sure the printer can load A4 or Letter-size paper. A Demonstration of printer features, Test Print A (repeating ripple pattern), and a Nozzle Pattern Print can be printed. Printer Control Mode Sets the emulation mode for the printer: BJ mode and LQ mode, Automatic mode.
BJC-4300 Part 3: ODeratino Instructions 3.3 Cleaning the BJ Cartridge Turn on the printer. Hold down the RESUME button until the beeper sounds twice. The cleaning starts when the POWER indicator blinks. When the cleaning is completed, the blinking stops. Thr cleaning time is approximately 22 seconds. After the cleaning, execute a test printout of thr nozzle check pattern to check the print quality.
BJC-4300 Part 3: Operating Instructions 3.4 Self-Test Printout This printer has built-in self-test functions which can be executed without any connection to a computer. The off-line, self-test operations are described below. After turning on the printer, hold down the POWER button until the beeper sounds the specified number of times, then release the button. The self-test printout stops when the RESUME button is pressed or when the printer is turned off.
BJC-4300 Part 3: Operating Instructions 3.4.2 Printer status information print >BJ< 1 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. Ii. 16. 17. 18. 19. Printer Control Mode Paper Selection Print Mode Smoothing (Black B.
BJC-4300 Part 3: Operating Instructions 3.4.3 ASCII character print (ripple pattern) The printer control mode, control ROM vmsion, and function settings in the header section are printed out as shown below. The same patterns are printed for the color E?J cartridge and black E3J cartridge Figure 3-21 ASCII Character Printout (Sample) 3.4.4 Nozzle check pattern Printout this pattern using all nozzles of the ELJ cartridge. In the event that print defects appear, perform a cleaning operation of the head.
BJC-4300 Part 3: Operating Instructions 3.5 Hexadecimal Dump Test Printout This printer can execute a hexadecimal dump test printout. The hexadecimal dump test prints the data sent from the computer to the printer by hexadecimal data. Turn on the printer and hold down the POWER button until the beeper sounds five times. Then release the button to execute the hexadecimal dump test printout. The printout stops when the printer is turned off.
BJC-4300 Part 3: ODeratina Instructions 3.6 EEPROM Reset The EEPROM records various settings, the data on the total number of sheets printed and the total waste ink absorption amount for the color and black ink cartridges respectively. The total number of sheets printed and the total wastes ink absorption amount can serve as a reference for how much the printer has been used. The EEPROM must be reset when the logic board or the waste ink absorber is replaced. See Part 5: 4.
BJC-4300 Part 3: Operating Instructions 3.6.2 Printing the EEPROM data The following data recorded by the EEPROM can be printed out as described below: 1) Function setting: Execute the self-test printouts Printer status information print. See 3.4 Se/f-Test Printout (page 3-21). 2) Total number of sheets printed for the color and black ink cartridges respectively: Execute the self-test print’s ASCII character printout. See 3.4 Se/f-Test Print (page 3-21).
Parf 4: Technical Reference BJC-4300 0 0 - 1 .
BJC-4300 Part 4: Technical Reference 1.2 Initial Flowchart The initial flowchart below shows the process from when the printer is turned on to when it goes online. Software initialization * MPUlPrinter controller initialization . RAM check .
BJC-4300 Part 4: Technical Reference 1.3 Print Signal Flow The print signal flow from when the printer receives the print data to when printing is executed is described below. a) The print data (including the control signals) output by the computer is received by the printer controller through the parallel interface, which is controlled by the printer controller on the logic board. Through the dedicated bus between the printer controller and DRAM, print data is stored in the DRAM’s receive buffer area.
BJC-4300 Part 4: Technical Reference 1.4 Print Drive To eject ink from the head for printing, the printer outputs control signals from the printer controller to the BJ head. The control signals consist of the drive control signal for ejecting ink from the head’s nozzles and the temperature control signal for adjusting the head’s temperature so that the amount of ink ejected is uniform.
BJC-4300 Part 4: Technical Reference c) Color BJ Cartridge (Multi Drop) Drive Control The multi drop type color BJ cartridge’s printbead has 136 nozzles and each nozzle has two heaters located one infront of the other. The printing operation using this multi drop type color BJ cartridge is (dependent/influenced] by how these heaters are controlled. The sequence of ink ejection is as follows. The 136 nozzles has 8 function blocks (16 nozzles/block) and each block is separated into two functional units.
BJC-4300 Part 4: Technical Reference 1.5 Power Off Flowchart ( Indicator blinks (green) Cleaning and paper feeing operations are all completed before turning off.
BJC-4300 Part 4: Technical Reference 2.1 Interface The printer supports compatible mode and nibble mode which are compatible with the bidirectional Centronics interface-standard [IEEE P1284). Compatible mode is the same as the Centronics interface-standard protocol. The printer supports compatible mode and ECP mode which are compatible with the bidirectional Centronics interface-standard (IEEE P1284). Compatible mode is the same as the Centronics interface-standard protocol.
BJC-4300 Part 4: Technical Reference 2.1 .l Compatible mode The parallel interface___for the compatible mode transfers data in S-bit units. Data is transferred with the STROBE, BUSY, and ACKNLG handshake signals. When the printer receives the data (Data 1-8) and STROBE signal from the host computer and the STROBE signal is low, the printer controller (which controls the parallel interface) outputs the BUSY signal and latches the data.
BJC-4300 Part 4: Technical Reference 2.1.2 Nibble mode In nibble mode, the printer transfers data twice to the host computer in 4-bit units. The data is transferred with the F’trClk signal and HostBusy signal handshakes. After the printer contlrms that the HostBusy signal is low, it prepares S-bit data, lowers the FTrClk signal and outputs the lower 4.bits along the control signal line. After the PtrClk signal is low, the host computer receives the data and raises the HostBusy signal.
BJC-4300 Part 4: Technical Reference 2.2 720 dpi Printing/Smoothing Feature 2.2.1 Canon extension mode In Canon extension mode, the printer driver creates 720 dpi data for the horizontal direction and sends it to the printer, allowing the printer to achieve high-quality printing. With a black BJ cartridge installed, the printer driver smoothes the printed character’s edges to 720 dpi along the horizontal direction.
BJC-4300 Part 4:Technical Reference 2.3 Printing Modes 2.3.1 Printing mode Depending on the cartridge installed, the medium, the printing mode, the resolution, the print data, etc., the printer varies the carriage movement, bubble jet head driving frequency, etc., to attain high-quality printing without any bleeding or shifting in the printout. When the 720 dpi printing/smoothing feature is used, the carriage feed pitch is set to l/720 inch.
BJC-4300 l Part 4: Technical Reference TABLE 4-1 PRINTING MODES AND HEATING METHODS (1) With a Black BJ Cartridae Bk-Fine-Cloth Color-HQl Color-HQ2 Color-Fine1 Color-Fine2 Color-HS 4 passes 1 pass 1 pass 4 passes 4 passes 1 oass I Number of Nozzles 128 32 32 32 128 128 32 32 128 nozzles nozzles nozzles nozzles nozzles nozzles nozzles nozzles nozzles Heat Frequency r’] I 6.51KHz 6.51KHz 6.51KHz 6.51KHz 6.51KHz 6.51KHz 6.51KHz 6.51KHz I [6.51KHz (13.02KHz)l [6.51KHz (13.02KHz)l [6.51KHz (13.
BJC-4300 Part 4: Technical Reference TABLE 4-2 PRINTING MODES AND HEATING METHODS (2) With a Color NJ Cartridge Bk-HQ Bk-Fine1 Bk-Fine2 Bk-HS Color-HQ 1 -Carriage Movement 1 pass 4 passes 4 passes 1 pass 1 pass Color-HQ2 1 pass Color-Fine1 Color-Fine2 Color-HS 3 passes 3 passes 1 pass Printing Mode With a Photo NJ Cartridge Printing Mode Bk-HQ Bk-Fine 1 Bk-Fine2 Bk-HS Color-HQ 1 I Carriage Movement 1 pass 4 passes 4 passes 1 pass 1 pass Color-HQ2 1 pass Color-Fine 1 Color-Fine2 Color-HS 3 pa
BJC-4300 Part 4: Technical Reference 2.4 Optimum Printing Direction Control To prevent vertical misalignment of the printed characters, etc., when printing data is printed continuously in the direction of the paper feeding direction, printing is executed with the carriage moving from only one direction.
BJC-4300 Part 4: Technical Reference 2.6 Ink Smear Control Immediately after the printed sheet is ejected from the printer, the ink dries naturally on the paper output tray. If the next printed sheet is ejected before the ink has enough time to try on the preceding sheet on the paper output tray, the ink may be smeared when the sheet slides over the preceding one.
BJC-4300 Part 4: Technical Reference 3.1 Overview This section explains the printer’s mechanical components. BJ Cartridge’ Purge Unit’ Figure 4-11 Printer’s Mechanical Configuration 3.1 .l Mechanical components 1)BJcartridge The printer comes with three types of E3J cartridges: black, color and photo. The user installs the black or color BJ cartridge according to the required application. The black BJ cartridge has an integrated head while the color BJ cartridge has replaceable ink cartridges.
BJC-4300 Part 4: Technical Reference 4) Paper feed mechanism and sheet feeder The built-in sheet feeder is driven by the paper feed motor. Plain paper as well as coated paper, transparencies. back print film, envelopes, etc., can be loaded and fed automatically into the paper feed mechanism. Driven by the paper feed motor, the paper feed mechanism rotates the feed rollers to feed the paper vertically.
BJC-4300 Part 4: Technical Reference 3.2 BJ Cartridge 3.2.1 Black BJ cartridge structure The black W cartridge consists of a 128 nozzle print head and integrated ink cartridge. 1) Pressun adjusting plate As the ink is consumed, the pressure inside the cartridge decreases in relation to the atmospheric pressure. This makes it more difficult for the ink to be supplied to the head. To prevent this, the BJ cartridge has an air hole for maintaining a constant pressure inside the cartridge body.
BJC-4300 Part 4: Technical Reference 3.2.2 Color BJ cartridge structure The color ESJ cartridge has a print head equipped with 136 nozzles through which the four ink colors are ejected (24 nozzles each for yellow, magenta. and cyan: 64 nozzles for black). The ink cartridges (one for black and one for the other three colors) are removable and replaceable. 1) F’ressure adjusting plates As the ink is consumed, the pressure inside the cartridge decreases in relation to the atmospheric pressure.
BJC-4300 Part 4: Technical Reference 3.2.3 Photo BJ cartridge structure The photo BJ cartridge has a print head equipped with 136 nozzles through which the four ink colors are ejected (24 nozzles each for yellow, magenta, and cyan; 64 nozzles for black). 1) Pressure adjusting plate As the ink is consumed, the pressure inside the cartridge decreases in relation to the atmospheric pressure. This makes it more difficult for the ink to be supplied to the head.
BJC-4300 Part 4: Technical Reference 3.2.4 Bubble head unit structure 1) Bubble jet nozzles The ink held by the sponge goes through a mesh-type ink filter and flows to the 0 I bubble jet nozzles through the joint pipe. When the head-drive current is supplied to the heater board, an ink bubble is produced. Eventually, only one ink bubble is formed. The head-drive current is turned off before the ink droplet leaves the nozzle.
BJC-4300 Part 4: Technical Reference 21 Nozzle arrangement The bubble jet nozzles are arranged l/360 inch apart in a vertical array. The black EIJ cartridge has 128 nozzles. On the color EIJ cartridge, the first 24 nozzles are for yellow ink, the second 24 nozzles are for magenta ink, the third 24 nozzles are for cyan ink. and the remaining 64 nozzles are for black. The color ESJ cartridge has a total of 136 nozzles.
BJC-4300 Part 4: Technical Reference TABLE 4-3 LIST OF BJ CARTRIDGE SIGNAL CONTACTS No.
BJC-4300 Part 4: Technical Reference 4) Circuit diagram Figure 4-18 Black BJ Cartridge Block Diagram Color BJ cartridge and Photo q J cartridge have the same circuit configuration except for the ID1 connection.
BJC-4300 Part 4: Technical Reference Color W cartridge and photo W cartridge have the same circuit configuration except for the ID1 connection.
BJC-4300 Part 4: Technical Reference . 128/136 bit shift resistor Stores the print data [HDATA) transferred from the control board at HCMCK’s timing. . 126/136 bit latch Latches the print data (HDATA) converted by the 128/ 136 bit shift resistor. . Block enable decoder After the BENB (Block enable) 1, 2, and 3 code signals are input, the specltled heat timing signal is output. The heat timing signal is divided into eighths.
BJC-4300 Part 4: Technical Reference 5) BJ cartridge detection feature Connector pins 11, 12 and 13 (IDO, ID 1 and INKS2) are used to recognize the cartridge type and connector pins 10 and 29 are used to detect whether or not a cartridge is installed. If the printer is turned on with no cartridge installed, the carriage automatically moves to the cartridge replacement position regardless of its previous position.
BJC-4300 Pari 4: Technical Reference 3.3 Purge Unit 3.3.1 Purge unit functions 1) capping function The pur@z unit’s cap is pressed against the face of the print head to prevent the ink from drying out or leaking. If print data is not received for over 60 seconds during a printing operation, the purge unit wipes the print head face. If print data is still not received for a further 60 seconds, the purge unit caps the print head.
BJC-4300 Part 4: Technical Reference 3.3.2 Purge unit structure 1) puree drive gear Through a transmission gear, the purge drive gear is driven by the feed roller which is driven by the paper feed motor. The purge drive gear in turn drives the cam which controls the pump’s operation. The cam’s position is detected by the home position sensor via the sensor arm. 2) Wiper unit When the carriage moves from left to right, the wiper retracts so that it does not touch the head.
BJC-4300 Part 4: Technical Reference 3.4 Carriage 3.4.1 Carriage functions 1) Print head fnstallation J3J cartridges are attached mechanically and connected with electronic circuitry to the carriage. 2) Carriage driver Driven by the carriage motor and carriage belt, the carriage moves across the paper horizontally. 3) Paper thickness adjustment The paper thickness lever on top of the carriage, adjusts the gap between the paper and print head.
BJC-4300 Part 4: Technical Reference 3.4.2 Carriage structure 1) BJ cartridge attachment section The cartridge holder moves with the locking lever which secures the ES.3 cartridge into the carriage. When a J3J cartridge is secured into the carriage, the ribbon cable signal contacts are pressed against the bubble jet head signal contacts, enabling signals to be transmitted from the logic board.
BJC-4300 Part 4: Technical Reference 4) Switching the paper feed motor drive transmission The paper feed motor drives either the paper feed, purge unit or cut sheet feeder according to the position of the carriage. When the carriage is not at the right end, the slide arm is locked by the purge unit’s slide lock pin. In this condition, paper feed is driven by the feed roller.
BJC-4300 Part 4: Technical Reference 3.5 Paper Feed 3.5.
BJC-4300 Pari 4: Technical Reference 1) Paper feed mechanism The paper feed mechanism can supply paper in two ways. automatically from the cut sheet feeder and manually from the manual feeding slot. The built-in cut sheet feeder is driven by the paper feed motor. Paper stacked in the sheet feeder is picked up and fed automatically. Even thick paper like envelopes can be fed automatically without selecting the paper type mechanically with the paper selection lever.
BJC-4300 Part 4: Technical Reference 3.5.2 Auto feedlfvlanual feed This printer has no paper selection lever on the cut sheet feeder. If the paper meets specifications. it can be fed without selecting operation the paper type. The paper is loaded in the cut sheet feeder such that a corner of it is caught by the paper separator. When printing starts, the pick-up roller starts to rotate through the drive of the paper feed motor.
BJC-4300 Part 4: Technical Reference 4.1 Overview The electrical system functions are handled by the logic section or power supply. The logic section converts the data from the interface into print signals or printer operation signals and drives the &I cartridge and motors while monitoring the status of the sensors. The power supply unit consists of a built in AC adapter which provides DC output to the logic board, motors and head etc.When DC input power from the AC adapter is being supplied.
BJC-4300 Part 4: Technical Reference 4.2 Logic Section 4.2.
BJC-4300 Part 4: Technical Reference 4.2.2 Logic section components 1) MPU (ICl) The MPU contains a 16.bit CPU, lK-bit RAM, 24.bit address bus port, 16.bit data bus port, stepping motor controller, interrupter controller, A-D converter, I/O ports. and other components. Built-in CPU The 16.bit CPU operates in synchronization with a 20 MHz external clock input. Address bus The 24.bit address bus port is connected to an 8 M-bit control/CG ROM and printer controller.
BJC-4300 Pari 4: Technical Reference 2) Printer controller (Ice) The printer controller contains the interface controller, print head controller, buffer controller, DRAM controller, EEPROM controller, I/O ports, etc. It operates in synchronization with an external 22.11 MHz external clock input. Interface controller The interface controller receives from the computer, S-bit parallel data which is synchronized with the data strobe pulse (STROBE) through the BlJSY/ACKNU; handshake.
BJC-4300 Part 4: Technical Reference 3) Control/CG ROM (IC3) The 8 M-bit control/CG ROM contains the prc@am and bitmap font data for printer control. 4) DRAM (IC4) Controlled by the printer controller, the 4 M-bit DRAM is used as a receive buffer, download buffer, print buffer, and working area. 5) Reset IC (IC7) This IC detects the power voltage when turning on the power or instantaneous power failure.
BJC-4300 Parl4: Technical Reference 5.5 Head Temperature Sensor The head temperature sensor in the print head is a diode sensor which detects the head’s internal temperature. Temperature changes in the head are detected by the MPU as voltage-level changes. The analog value input to the MPU is converted into a digital value by the A-D converter. This digital value is used for stopping dot ejection if there is an abnormal temperature increase. 5.
BJC-4300 Part 4: Technical Reference 6.1 Scanner Cartridge Overview The scanner cartridge is a replaceable scanner unit that carries a one-line 128 pixel CCD. ‘Ike scanner separates each of the three RGB primary colors of the LED by scanning the same line three times. The color image is output by S-bit signals, 256 gradation in each RGB primary color. For a monochrome image, the image is lit with a green LED and scanned once to output either a S-bit or a-bit signal.
BJC-4300 Part 4: Technical Reference 6.2 Scanner Cartridge Structure lmaaing Lens Illumination Lens LEDs LEDs’ Diffusion Board Platen I Illumination Lens Figure 4-34 Scanner Cartridge 1) LED Red, green and blue LEDs are used to illuminate the scanning document. To compensate for the low intensity of the red and green LED’s, two red and green LEDs have been incorporated and a total of five LEDs are mounted on the scanner. Only the green LED is used for monochrome scanning.
BJC-4300 Part 4: Technical Reference 8) Scanner controller The scanner controller is an IC that controls the CCD and processes the analog signal output from the CCD. The scanner controller also controls the following image processing: l Black Level Correction The black level is set to maximum CCD output. l A/D Converter The A/D converter converts the image signals to 10 bits image data. l Shading Correction The variation of tlx image signal is corrected by the shading correction.
BJC-4300 Part 4: Technical Reference 6.3 Signal Contacts The scanner cartridge is recognized by TOP.% DlAS and CCHK signals. The scanned image output to the printer is transmitted with a SCLOCK signal in sync with a SDATA signal. The scanner is controlled by the internal register setting signals, CMDO, 1, 2 and 3. - Scanner Cartridge Figure 4-35 Contact Pad Layout TABLE 4-7 LIST OF SCANNER CARTRIDGE SIGNAL CONTACTS NO. 1, 2 0 5, 6 9 10 11 12 14 19 20 21 22 23 24 25 26 28 29 signal LAMPG VLAMP TOP.
BJC-4300 Part 4: Technical Reference 6.4 Scan M o d e TABLE 4-8 LIST OF SCAN MODE Scanni i image Pi xe I Width Scanning resolution 360 x 360 300 x 360 200 x 360 200 x 180 Color luiti Value 48 48 64 64 64 64 Black a White fluiti Vaiuc 3 Binary 48 128 48 128 112 128 128 128 128 128 128 128 I Carriage Speed 4.08 KHz 5.2 KHz 5.2 KHz 5.2 KHz 6.5 KHz 9.19 KHz 6 .
BJC-4300 Part 5: Maintenance 1 .l Parts for Regular Replacement Level USi3 Service personnel Part NClne N0ne 1.2 Consumables Level User Service personnel Consumable Black BJ cartridge Color BJ cartridge Color ink cartridge/ Black ink cartridge Photo BJ cartridge None 1.
BJC-4300 Part 5: Maintenance 2.1 List of Tools Ordinarv Tool I Use Phillips screwdrIver Blade screwdriver Tweezers Multi-meter For For For For Special Tool (Parts Number) Gap gauge 1.2 mm (QYS-0016-000) Black BJ cartridge Use For adjusting the head gap Grease FLAIL G3 11s (TKC-0953-000) Grease MOLYKOTE PG.
BJC-4300 Part 5: Maintenance Use the special tool to apply grease at the points shown below. Rubbing Section of Clutch Spring and Clutch Gear: About 12 mg (FLOIL G311S) Rubbing Section of Cam Gear About 12mg (FLOIL G311S) Belt Holder: Paper Feed Motor Drive’ Transmission: About 6mg (FLOIL G311S) aper Lifting Plate : About 6mg (FLOIL G311 S) Idler Roller Shaft Section:’ About 6mg (FLOIL G311S) Both Sides of Carriage Guide Frame: About 40 to 60 mg (MOLYKOTE PG.
BJC-4300 Part 5: Maintenance 4.1 Disassembly and Reassembly When disassembling or reassembling the printer, refer to the parts catalog. In the parts catalog, figure numbers are in the order of disassembly. Close-up diagrams are also provided for additional detail. 4.2 Disassembly and Reassembly Cautions When disassembling or reassembling the printer, note the following precautions. These cautions are also provided in the parts catalog. 4.2.
BJC-4300 Part 5: Maintenance 4.3 Logic Board and Waste Ink Absorber Replacement Cautions 4.3.1 Logic board replacement cautions The various settings, waste ink amount, and other data stored in the logic board’s EEPROM cannot be rewritten into the new EEPROM after the logic board is replaced. The data in the new logic board’s EEPROM is not set. After the logic board/EEPROM is replaced, reset the EEPROM as described in “part 3: 3.6 EEPROM Resef” (page 3-25).
BJC-4300 Part 5: Maintenance 5.1 Adjustment Point Only the head gap between the BJ cartrldge’s head face and platen needs to be adjusted (to approximately 1.2 mm) to ensure optimum print quality. This adjustment is done by moving the carriage guide frame forward or back. Carriage Guide Frame /?==\\k Figure 5-5 Head Gap Adjustment a NOTE The head gap differs depending on the position of the paper thickness 1W.X.
BJC-4300 Part 5: Maintenance 5.3 Adjustment Procedure 5.3.1 Preparation 1) Remove the upper case unit. (Or assemble the printer until the rear cover is attached.) 21 Install a black BJ cartridge (for servicing) into the carriage. 3) Push in the carriage guide frame as of the arrows and tighten screws A and B lightly. 4) Move the carriage belt with your fingers to move the carriage to position A (center of platen).
BJC-4300 Part 5: Maintenance 5.3.2 Adiustment 1) Set the paper thickness lever to the right and place the gap gauge at position B. 2) Move the carriage to position B. 31 4) 5) 6) 7) 8) 9) Set the paper thickness lever to the left. Loosen screw A until the carriage guide frame moves forward under the carriage’s own weight with screw B as a pivot.
BJC-4300 Part 5: Maintenance 10) Loosen screw B until the carriage guide frame moves forward under the carriage’s own weight around screw A. 11) Lightly push the screw B end of the carriage guide frame once or twice and check that the carriage guide frame moves around screw A as shown by the arrows. If it does not return to its original position, screw A is too tight. And if the screw A moves end as well. then the screw A is too loose.
BJC-4300 Part 5: Maintenance 6.1 Troubleshooting 6.1 .l Overview This chapter consists of the following two sections on subsequent pages: “Error condition diagnosis” for diagnosing the problem when the cause is unknown and “Symptoms” for resolving problems whose cause is known. If the cause of the problem is unknown, diagnose the problem. And if the cause is known, follow the countermeasures to resolve the problem. 6.1.2 Troubleshooting cautions 1.
BJC-4300 Part 5: Maintenance 6. Some troubleshooting procedures include successive countermeasures. These are steps must be followed to resolve the problem. After each countermeasure step, make a test print to confirm whether the problem has been amended. If the problem persists, execute the subsequent countermeasure steps. Example 2 Countermeasure 1: After replacing the EU cartridge, execute a test printout to check whether the problem has been fmed.
BJC-4300 Part 5: Maintenance 0 6.2 Error Condition Diagnosis 6.2.
Part 5: Maintenance BJC-4300 Y Page Waste ink full error Paper pick-up error Paper eject operation Execute paper eject operation for about tlve seconds.
BJC-4300 Part 5: Maintenance LJ Previous Page Installed i Move cartridge to cartridge replacement position Install cartridge Does not detect cartridge Green u orange Beeper : Once When the power is turned on for the first time after the DC power cord is connected When over 72 hours have elapsed since the last cleaning.
BJC-4300 Part 5: Maintenance 6.2.2 Error recovery a) Error display -1 RAM reading and writing is not being performed properly. 1. RAM Error DRAM Replace logic board <&NLSS> During initialization, the contents in ROM cannot be read. ControVCG ROM Replace logic board. When a RAM error or ROM error occurs, the correct error display may not be displayed.
BJC-4300 Part 5: Maintenance
BJC-4300 Part 5: Maintenance The home position cannot be detected. Home position sensor, carriage motor, logic board, carriage ribbon cable drive mechanism ri$f&q Check for any paper ams, can% e belt wear/deterioration/ dislocation, dieformation of the carriage or carriage guide frame. scratching or bending in the carriage shaft, etc. Move the carriage by hand and check that it moves smoothly and there is no abnormal noise. Turns the during initialization ? .
BJC-4300 Part 5: Maintenance *The paper feed operation is executed but the paper is not fed. *The paper eject operation is executed but the paper is not eiected I ’ -Suspected Parts> Paper feed mechanism, pick-up roller sensor, paper end sensor, logic board Visually check for paper jams. Check for gear deformation or damage Repair/replace faulty part During fnitiallzation. do the paper feed motor, pick-up roller, feed roller, eject roller, etc.
BJC-4300 Part 5: Maintenance KJ Previous Page ’ Paper Se&Arm Check for pick-up roller sensor flag deformation or damage. Meswing points 1 Sensor 1 Normal readina Low level open MPU Closed Hi,?h level [Initial condition) pin No. 65 Check by moving the pick-up roller by hand while the power is on. Check for any deformation or wear. Any deformation or damage ? Meswing points ( Sensor 1 Normal reading MPU Pin No.
BJC-4300 Part 5: Maintenance The waste ink absorbers’ estimated waste ink amount has reached 100% Waste ink absorbers, logic board 1 .Reset the EEPROM and replace the waste ink absorbers. 2.Replace logic board. 6.Waste Ink Full Error Thermistor is abnormal. 7.Temperature Sensor Error _ 8. Printing Position Correction Error Thermistor Replace logic board. The printing position correction value cannot be detected.
BJC-4300 0 9. HeadTwrr ? 1 Part 5: Maintenance The head temperature is abnormally high BJ cartridge, logic board Since the head temperature may be high. do not touch the carriage Faulty E!J cartridge connection 12.
BJC-4300 Part 5: Maintenance Cleaning is not executed properly or not being detected. Home position sensor, sensor arm, purge unit, carriage ribbon cable, logic board During initialization, do the paper feed motor, pick-up roller, feed roller, eject roller, etc., rotate ? Any abnormal noises 7 Is the paper feed motor out of sync ? T Sensor arm check Move it by hand and see if it moves smoothly.
BJC-4300 Part 5: Maintenance Incorrect Scanner ID in spite of Scanner from the computer. controller. Scanner Replace scanner cartridge.
BJC-4300 Part 5: Maintenance b) Symptoms *The power does not turn on even when the POWER button is pressed. *Even when DC power is supplied, initialization is The AC adapter and/or control board is faulty.
BJC-4300 Part 5: Maintenance *The cartridge installed is not recognized. *When a cartridge is installed, the carriage moves to the replacement position. *The installed cartridge is recognized incorrectly. cCause>~Faulty contacts between the cartridge and carriage. *The cartridge is faulty. *The carriage ribbon cable is faulty. *The logic board is faulty. NO 4 1.
BJC-4300 Part 5: Maintenance *The printer does not print at all. *Printing stops mid-way. *Only a certain color is printed. *The ink has run out or the BJ cartridge is faulty. *The control board, the carriage ribbon cable, or the purge unit is faulty. dleasure> Remove and reinstall the BJ cartridge $ Execute a test print while the printer is on, hold down the POWER button for three beeps. Then release the POWER button to print out the ASCII pattern. 4 Yes END 1 V 1.
Part 5: Maintenance BJC-4300 &ymptom> *There is blotching. -There are white stripes. *The specified dots are not printed. *The BJ cartridge or cartridge contacts are faulty. *The carriage ribbon cable is faulty. *The purge unit or paper feed mechanism (missing gear tooth) is faulty. White Line Sample ;: -:ri: Printer environment and paper soecifications check Require specifications et 7 Yes No While the printer is on, hold down the POWER button for three beeps.
BJC-4300 Part 5: Maintenance 5 Faulty Printing <3>: Other Print Problems Paper contamination Spur tracks appear Vertically-oriented printed lines are misaligned. Corrugated printing The printout is either light or dark. Check Item Measures [nk mist on the platen. Use a soft cloth moistened with water to clean. Ink has clogged around the head’s nozzles. (No paper contamination during paper feeding and discharging.) Clean a few times. If problem persists, replace the EIJ cartridge.
BJC-4300 Part 5: Maintenance -Nothing is printed. *An unspecified font is printed. *An unspecified color is printed. *The printer driver setting is faulty. *The interface cable is faulty. *The printer’s logic board is faulty. While the printer is on, hold down the POWER button for three beeps. Then release the print out the ASCII pattern.
BJC-4300 Part 5: Maintenance 7.1 Logic Board Figure 5-9 Logic Board !#p 1 2 3 4 5 6 7 6 9 10 11 12 13 14 15 16 17 16 19 20 21 22 23 24 25 26 27 26 29 30 31 32 .
BJC-4300 Part 5: Maintenance 5-e motor connector) Description Carriage motor Carriage motor Carriage motor Carriage motor Signal name IN/OUT OUT CRA CRA OUT CRB OUT CRB OUT Pin No. 1 2 3 4 phase phase phase phase A A e B 53 (Paper feed motor connect{ Pin No. 1 2 1Signal name / IN/OUT LFB LFA Description Paper feed motor Paper feed motor Common Paper feed motor Paper feed motor OUT OUT phase e phase A phase A phase B 54 (DC power connector) 1 Pin No.1 55 (Interfi Pin No.
BJC-4300 Part 5: Maintenance : . )A 0 -A 8.1 Parts Layout 8.1 .
BJC-4300 Part 5: Maintenance Figure 5-11 Logic Board (Bottom View) 5-33
