6(59,&( 0$18 18$ $/ Impact Serial Dot Matrix Printer EPSON LQ-2180 ® SEDM98001
Notice: „ All rights reserved. No part of this manual may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SEIKO EPSON CORPORATION. „ The contents of this manual are subject to change without notice. „ All effort have been made to ensure the accuracy of the contents of this manual.
PRECAUTIONS Precautionary notations throughout the text are categorized relative to 1)Personal injury and 2) damage to equipment. DANGER Signals a precaution which, if ignored, could result in serious or fatal personal injury. Great caution should be exercised in performing procedures preceded by DANGER Headings. WARNING Signals a precaution which, if ignored, could result in damage to equipment.
PREFACE This manual describes basic functions, theory of electrical and mechanical operations, maintenance and repair instructions and procedures included herein are intended for the experienced repair technicians, and attention the preceding page. The chapters are organized as follows: CHAPTER 1. PRODUCT DESCRIPTIONS Provides a general overview and specifications of the product. CHAPTER 2. OPERATING PRINCIPLES Describes the theory of electrical and mechanical operations of the produc CHAPTER 3.
Revision Status Revision Issued Date Description A February 3, 1999 First Release
Contents Product Description Specifications ................................................................................................. 8 Features ................................................................................................................ 8 Accessories ........................................................................................................... 8 Printing Specifications ...........................................................................................
PRODUCT DESCRIPTION
LQ-2180 Revision A 1.1 Specifications 1.1.2 Accessories The LQ-2180 is a revised model of the already existing LQ-2170. Since the specifications for the both products are mostly common except for the LQ-2180’s improved features such as printing speed and copy capability, the information included in this section is limited to the items that are specific to LQ-2180. For the rest of the information, refer to the LQ-2170 Service Manual. 1.1.
LQ-2180 Revision A 1.1.3 Printing Specifications † Copy capability: 1.1.4 Paper Handling 1 original + 5 copies This section only describes the release lever setting, adjust lever setting, and some other specifications which are specific to LQ-2180. For the rest of the specifications, see the LQ-2170 Service Manual. † Printing speed and printable column (See the table below.) Table 1-4.
LQ-2180 Revision A † Release lever: † Adjust lever: See the following table. Table 1-5. Release Lever Settings Lever Position Paper path / Feeder See the following table. Table 1-6. Adjust Lever Setting Position Paper / Media Paper Thickness (inch) Setting Position Minimum Maximum 0 0.0024 0.0047 over 0.006 up to 0.12 1 0.0047 0.0074 over 0.12 up to 0.
LQ-2180 Revision A 1.1.5 Paper Specifications Table 1-8. Cut Sheet (Multi Part) Front Entry This section provides paper specifications for the LQ-2180. Table 1-7. Cut Sheet Front Entry Rear Entry Minimum Maximum Minimum Maximum Width (inch) (mm) 3.9 100 16.5 420 3.9 100 16.5 420 Length (inch) (mm) 5.8 148 16.5 420 3.9 100 16.5 420 Thickness (inch) (mm) 0.0025 0.065 0.0055 0.14 0.0025 0.065 0.0055 0.14 Weight (g/m2) (lb.
LQ-2180 Revision A Table 1-9. Card Table 1-10. Envelope Front Entry Rear Entry Front Entry Minimum Maximum Minimum Maximum (inch) (mm) 3.9 100 7.8 200 3.9 100 7.8 200 Length (inch) (mm) 5.8 148 7.8 200 5.8 148 7.8 200 Thickness (inch) (mm) 0.0087 0.22 0.0087 0.22 (g/m2) (lb.) 192 51 192 51 Plain paper, Recycled paper, Paper that is not curled, folded, or crumpled. Plain paper, Recycled paper, Paper that is not curled, folded, or crumpled.
LQ-2180 Revision A Table 1-11. Continuous Paper (Single sheet and Multi Part) Front Entry Rear Entry Table 1-12. Continuous Paper with Labels Bottom Entry Min. Max. Min. Max. Min. Max. Front Entry Min. Max. Bottom Entry Rear Entry Min. Min. Max. Max. Width (inch) (mm) 4 101.6 16 406.4 4 101.6 16 406.4 4 101.6 16 406.4 Label size Length (one page) (inch) (mm) 4 101.6 22 558.8 4 101.6 22 558.8 4 101.6 22 558.8 Base sheet width (inch) (mm) 4 101.6 16 406.4 4 101.
LQ-2180 Revision A Table 1-13. Roll Paper Front Entry Minimum Maximum Rear Entry Minimum Maximum Width (inch) (mm) --- 8.5 216 Length (inch) (mm) --- --- Thickness (inch) (mm) --- --- 0.0028 0.07 0.0035 0.09 Weight (g/m2) (lb.) --- --- 52.3 14 82 22 Quality Product Description --- Plain paper, Recycled paper, Paper that is not curled, folded, or crumpled.
LQ-2180 Revision A 1.1.6 Electrical Specifications The electrical specifications for the LQ-2180 is the same as for the LQ2170 except for the items below. For information on other items, see the LQ-2170 Service Manual. † Input voltage range „ 120 V version: AC 99 to 132 V „ 230 V version: AC 198 to 264 V (same as for the LQ-2170 † Rated current † 230 V version „ Safety standards: EN60950 (TUV) „ EMI: EN55022 (CISPR pub.22) class B AS/NZS 3548 class B 1.1.
LQ-2180 Revision A 1.2 Firmware Specifications International character set (14 countries and legal) This section describes the firmware specifications for the LQ-2180. 1.2.
LQ-2180 Revision A Table 1-14.
LQ-2180 Revision A 1.2.2 Interface Specifications 1.2.2.2 Parallel Interface (Reverse Channel) † Transmission mode: IEEE-1284 nibble mode † Synchronization: Refer to the IEEE-1284 specification 1.2.2.
LQ-2180 Revision A 1.3 Operation Instruction This section provides information on the LQ-2180 control panel buttons, LED, and operations. Since the layout and functions of the control panel are mostly common to those of LQ-2170, this section only shows the information that is specific to LQ-2180. For other information, see LQ2170 Service Manual. † Operation at power on Turning on the printer while pressing panel buttons executes the functions below: Table 1-15. Operations at Power On No. 1.3.
LQ-2180 Revision A 1.3.3 EEPROM Initialization Areas reset by EEPROM clear operation (described in Section 1.3.1) are as shown in the following tables: Table 1-16. Initialization Area for EEPROM (1/2) No. Item Factory setting Table 1-17. Initialization Area for EERPOM (2/2) No.
LQ-2180 Revision A 1.4 Main Components The main components for the LQ-2180 are as follows. They are designed for easy disassembly and repair work. † C272MAIN Board † C165 PSB/PSE Board † C165 PNL Board † Printer Mechanism † Housing (upper and lower cases) Figure 1-3.
LQ-2180 Revision A 1.4.1 C272MAIN Board The C272MAIN Board is composed of the CPU (TMP96C141), gate array (E05B42), program ROM that integrates the CG, EEPROM, and 24 transistors used to drive the printhead. H e a d D r iv e T R A N S IS T O R IC 1 2 A 2 9 1 7 S L A 7 0 2 4 M IC 1 0 P -R O M C N 1 Note the C272MAIN Board has the following 4 versions; 1) Standard version, 2) NLSP version, 3) Korean version, and 4) Thai version.
LQ-2180 Revision A 1.4.2 Printer Mechanism Appearance of the printer mechanism for the LQ-2180 is the same as for the LQ-2170. However, please be aware of the printhead’s incompatibility with the LQ-2180.
&+$37(5 5 OPERATING PRINCIPLES
LQ-2180 Revision A 2.1 Control Circuit The control circuit of the LQ-2180 is composed of the C272MAIN board and the C165PNL board. This section describes the operations of the major components in the circuit. The following figure shows the data flow from the host computer to the printhead. Data sent from the host computer is converted to image data and transmitted to the printhead through the gate array. 2.1.
LQ-2180 Revision A The following table lists the each function of the main components of the C272 MAIN board. Table 2-1. Functions of the Main Board IC Name Location Detects conditions of various sensors and controls phase change for the CR motor. IC3 Control the functions below: • Memory management • Printhead drive • Phase change for the PF motor EEPROM IC5 Contains such information as the factory setting values for the various adjustments and the operational record of the printer.
LQ-2180 Revision A 2.1.3 Printhead Driver Circuit Printhead drive begins with monitoring the 35 V line currently applied. This function enables the printer to change the period of time for applying current to the printhead slightly depending on the condition. As a result, the printer can output image at a constant density. The Pin 74 (AN1) on the CPU monitors the 35 V line’s condition.
LQ-2180 Revision A 2.1.4 CR Motor Driver Circuit 2.1.5 PF Motor Driver Circuit The CPU (IC4) directly controls the phase change of the CR motor. SLA7024M (IC11), the driver IC for the CR motor, performs bi-polar constant current drive to detects the amount of current flowing into the motor and chops the current supplied. With this operation, current flowing into the motor coil is regulated. The gate array (IC3) manages the PF motor control.
LQ-2180 Revision A 2.1.6 EEPROM Control Circuit 2.1.7 Sensor Circuit When the printer power is turned off, the EEPROM stores the factory settings and values in the areas that are not cleared in the user setting mode and also writes those values in the RAM. This sequence is managed by the CPU (IC4), which transmits data in the serial format. Unlike the LQ-2170, both the CPU and the gate array monitor and control the corresponding sensors’ conditions.
&+$37(5 6 DISASSEMBLY AND ASSEMBLY
LQ-2180 Revision A The contents of the chapter “Disassembly and Assembly” is the same as for the LQ-2170 Service Manual.
&+$37(5 7 ADJUSTMENT
LQ-2180 Revision A 4.1 Overview NOTE: The adjustment items required for the LQ-2180 are the same as for the LQ-2170. Therefore, see Table 4-1 in the LQ-2170 Service Manual and perform any necessary adjustment after disassembling/assembling the printer. C A U T IO N If you omit this operation, the printer will perform Uni-D print instead of Bi-D. 5. Double-click “LQSERIES.EXE”. The program starts up and the screen below appears.
LQ-2180 Revision A < * > < * > < * > E P S O N S ID M P r in te r S e r v ic e P r o g r a m < * > < * > < * > E P S O N S ID M b o o t p r o c e s s < * > < * > < * > S ta n d a r d N L S P U P /D o w n :S e le c t b o o t p ro c e s s < *> < *> < *> D o y o u s ta r t th e S e r v ic e P r o g r a m ? S e le c t th e d e s tin a tio n .
LQ-2180 Revision A 4.1.2 Bi-D Adjustment This adjustment is made after the main board or the CR motor has been replaced. The purpose of this adjustment is to electrically correct the head wire’s point of impact during Bi-D printing. The adjusted value is stored in the specific address in the EEPROM. Once the value is stored, it will not be erased if the printer is turned off or the EEPROM is reset.
LQ-2180 Revision A 6. When this adjustment is completed, if you need to perform another adjustment using this program, you can continue without turning off the printer. 4.1.3 TPE Level Reset Make this adjustment when the main board or Top PE Sensor has been replaced. Generally, light level emitted from the photo diode in a photo sensor lowers with age.
LQ-2180 Revision A 4.1.4 Writing the User-characteristic Data [To check the current status] Use this function to check the specific records of the printer used by your customer. Also, you can renew the starting date using this program. Since there is no standardized service operation using this function, you can use it whenever necessary. 3. Select “Characteristic Status Code” and press the Enter key. The following screen appears. 1. Perform the pre-operation. (See Section 4.1.1.
LQ-2180 Revision A S e ttin g S ta r tin g Y e a r /M o n th /D a y In p u t fo r m a t: 1 9 9 9 /1 /1 ---> 9 9 0 1 0 1 P le a s e in p u t 6 d ig its > > Figure 4-10. Screen - Setting Starting Year / Month / Date 5. Input a 6-digit data. Be sure to input it correctly since this programs does not perform comparison check with the system timer. If you input a wrong data, start from the beginning.
TROUBLESHOOTING
LQ-2180 Revision A 5.1 Overview 5.2.1 Printhead This chapter contains flowcharts and checkpoint tables to help you troubleshoot the printer. The checkpoint tables let you identify the faulty part or unit by checking the values or ranges listed for each component. 5.2 Troubleshooting Information This section gives you troubleshooting information to let you test points for replaceable units. The information in this section is the same as for the LQ-2170. 5.2.
LQ-2180 Revision A 5.3 Unit Level Troubleshooting The information for this section is the same as for the LQ-2170 except for some points. The points to be changed are as follows: Problem Cause Checkpoint Solution The printer does not operate at all. Reset IC2 is defective. Check the voltage waveforms of the VCC signal (CH1: IC2 pin 3) and VOUT signal (CH2: IC2 pin 2) when power is turned on. Replace IC2. The PROM (IC10) is not selected.
LQ-2180 Revision A Table 5-3. Repairing the C272MAIN Board (2/3) Problem Cause Checkpoint Solution Table 5-4. Repairing the C272MAIN Board (3/3) Problem Cause Check the oscillator signal at pins 26 or 27 of the CRU1. The printer does not operate at all. If the signal is not correct, replace IC4 (or replace the main board). Otherwise, replace CRU1. CRU1 is defective. Check input signal waveform (CH1) at pins 1, 2, 3, and 4 of IC4. Check output signal waveform at pins 8, 1, 18, and 11 of IC11.
LQ-2180 Revision A 5.6 Repairing the Printer Mechanism The information for this section is also the same as for the LQ-2170 except for the point below.
MAINTENANCE
LQ-2180 Revision A The contents of the chapter “Maintenance” is the same as for the LQ-2170 Service Manual.
APPENDIX
LQ-2180 Revision A 7.1 EEPROM Address Map Table 7-2. EEPROM Address Map (2/7) This chapter provides EEPROM Address Map for LQ-2180 and component layouts and circuit diagram for the C272 Main Board. NOTE: The data of two or more bytes are assigned in such was as lower byte to lower address, higher byte to higher address. Table 7-1.
LQ-2180 Revision A Table 7-3. EEPROM Address Map (3/7) Address Data Data Format 0: 10 cpi 1: 12 cpi 2: 15 cpi 3: 17 cpi 4: 20 cpi 5: Proportional Table 7-4. EEPROM Address Map (4/7) Q-pit data Factory setting 00H (10 cpi) 00H (10 cpi) 00H 00H 1DH Pitch selection 1EH (reserved) 1FH Print direction setting 0: Bi-d. 1: Uni-d. 2: Auto 00H (Bi-d.) 00H (Bi-d.
LQ-2180 Revision A Table 7-5. EEPROM Address Map (5/7) Q-pit data Factory setting Address b0: LOAD function b1: EJECT function b2: FONT selection b3: PITCH selection b4: TEAR OFF function b5: BIN selection b6: Draft self test b7: LQ self test 00H 00H 3CH Starting Year 3DH b0: LF function b1: FF function b2: Micro Adjust function b3: Pause function b4: Data dump b5: Default setting b6: Bi-d. adjustment b7: (reserved) 00H Manual insertion wait time 3 to 30 (by 0.1 sec.
LQ-2180 Revision A Table 7-7.
LQ-2180 Revision A 7.2 Connector Summary The following figure shows how primary components are connected. The table below shows the cable alignment of the C272 Main Board. Table 7-8.
LQ-2180 Revision A NOTE: The table below provides information of the connector that vary from C165 Main Board used in LQ-2170. Figure 7-2.
LQ-2180 Revision A 7.3 Component Layout Figure 7-3.
LQ-2180 Revision A Figure 7-4.
LQ-2180 Revision A 7.4 Circuit Diagram See the following page for the dircuit digram of the C272 Main Board.
