EPSON COLOR INK JET PRINTER EPSON Stylus COLOR 1520 SERVICE MANUAL SEIKO EPSON CORPORATION 4007394
NOTICE All rights reserved. Reproduction of any part of this manual in any form whatsoever without SEIKO EPSON’s express written permission is forbidden. The contents of this manual are subjects 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.
PRECAUTIONS Precautionary notations throughout the text are categorized relative to 1) personal injury and 2) damage to equipment. WARNING Signals a precaution which, if ignored, could result in serious or fatal personal injury. Great caution should be exercised in performing procedures preceded by WARNING Headings. CAUTION Signals a precaution which, if ignored, could result in damage to equipment.
PREFACE This manual describes functions, theory of electrical and mechanical operations, maintenance, and repair of Stylus COLOR 1520. The instructions and procedures included herein are intended for the experience repair technician, and attention should be given to die precautions on the preceding page. The Chapters are organized as follows: CHAPTER 1. GENERAL DESCRIPTION Provides a general product overview, lists specifications, and illustrates the main components of the printer. CHAPTER 2.
REVISION SHEET Revision Issued Data Contents Rev.
TABLE OF CONTENTS CHAPTER 1. CHAPTER 2. CHAPTER 3. CHAPTER 4. CHAPTER 5. CHAPTER 6.
Chapter 1 Product Description 1.1 Features....................................................................................................................1 1.2 Specification ............................................................................................................3 1.2.1 Printing Specifications.............................................................................................................. 3 1.2.2 Control codes ..............................................................
1.4.6 Printer Adjustment Mode ........................................................................................................ 29 1.4.6.1 Adjustment Method..................................................................................................... 29 1.4.6.2 Adjustment patterns.................................................................................................... 29 1.4.7 Printer Initialization.....................................................................................
Product Description 1.1 Features The EPSON Stylus COLOR 1520 is a business-use, high speed, and high-quality color ink jet printer.
EPSON Stylus COLOR 1520 Table 0-1.
Product Description 1.2 Specification This section provides detailed information on the EPSON Stylus COLOR 1520. 1.2.
EPSON Stylus COLOR 1520 1.2.2 Control codes ESCP/2 and expanded raster graphics code EPSON Remote command IBMX24E emulation 1.2.
Product Description Combinations of Character tables and typefaces (font) Table 1-14 shows the available combinations of character tables and Typefaces. Table 0-4.
EPSON Stylus COLOR 1520 1.2.5 Paper Specification 1.2.5.1 Cut Sheet Table 0-5. Cut Sheet Size Size Width 210 mm (8.3”) 215.9 mm (8.5”) 182 mm (7.2”) 215.4 mm (8.5”) 257 mm (10.1”) 297 mm (11.7”) 279.4mm (11.0”) 329 mm (13.0”) 420 mm (16.5”) 431.8 mm (17.0”) 176 mm (6.9”) 250 mm (9.8”) A4 Letter B5 Legal B4 A3 Ledger A3 wide A2 US-C B5 (ISO) B4 (ISO) Length 297 mm (11.7”) 279.4 mm (11.0”) 257 mm (10.1”) 355.6 mm (14.3”) 364 mm (14.0”) 420 mm (16.5”) 431.8 mm (17.0”) 483 mm (19.0”) 594 mm (23.4”) 558.
Product Description 1.2.5.5 Labels (Cut Sheet) Table 0-9. Label Size Size A4 Letter Width 210 mm (8.3”) 216 mm(8.5”) Length 297 mm (11.7”) 279 mm (11.0”) Paper thickness :0.2 mm (0.0079”) including base sheet Quality :Page printer label Note) Label must be printed at normal room temperature. 1.2.5.6 Continuous Paper Paper size Paper thickness Paper Weight :Paper width 101.6 mm (4”) to 406.4 mm (16”) :Folding length 101.6 mm (4”) :0.065 mm (0.0026”) to 0.11 mm (0.0043”) 2 2 :52 g/ m (14 lb.
EPSON Stylus COLOR 1520 1.2.6 Printable Area Cut Sheet PW LM RM TM PL Printable Area BM Figure 0-3. Printable Area for Cut Sheet Table 0-10. Minimum Margins for Different Cut Sheet Sizes PW (Paper Width) LM (Left Margin) Set to right Set to left edge edge RM (Right Margin) Set to right Set to left edge edge A4 3 mm 3 mm 3 mm 3 mm 297 mm (0.12”) (0.12”) (0.12”) (0.12”) (11.87”) Legal (L) 3 mm 5 mm 5mm 3 mm 356 mm (0.12”) (0.20”) (0.20”) (0.12”) (14.0”) B4 (L) 3 mm 16 mm 16 mm 3 mm 364mm (0.
Product Description Envelope RM LM TM Printable area BM Figure 0-4. Printable Area for Envelopes Table 0-11. Minimum Margin for Envelope Rev. A LM (Left Margin) (minimum) RM (Right Margin) (minimum) TM (Top Margin) (minimum) 3 mm (0.12”) 3 mm (0.12”) 3 mm (0.12”) BM (Bottom Margin) (minimum) 14 mm (0.
EPSON Stylus COLOR 1520 Continuous Paper Note) 1. Printable area of label (continuous) is as same as for continuous paper. 2. Base sheet of label (continuous) is not within the printing area. More than 13 mm (0.51") *1 More than 13 mm (0.51") *1 More than 3 mm (0.12 ") More than 12.5 mm (0.49") Printable are 1 Printable area 2 More than 9 mm (0.35") More than 9 mm (0.35") Printable are 1 Perforation Printable area 2 Printable area 2 More than 9 mm (0.35") More than 9 mm (0.
Product Description 1.2.7 Adjust Lever The adjust lever , located at the left and upper side of the printer , is used to adjust the gap between the paper and platen. The adjust lever must be set to the proper position the paper type in order to prevent the paper from smudging. Table 0-12. Adjust Lever Position Paper Type Cut sheet Transparency Continuous paper Index card Envelopes Lever Position Platen Gap Adjustment Value Far side (0) 0 mm Near side (+) + 0.7 mm Adjust lever + 0 Figure 0-6.
EPSON Stylus COLOR 1520 1.2.8 Ink Specification 1.2.8.1 Black ink cartridge Table 0-13. Black Ink Cartridge Specifications Black Ink Cartridge Exclusive ink cartridge Black 900 pages / A4 (ISO/IEC10561 Letter Pattern at 360 dpi) 2 years from indicated production date *1 At storage : -20 •• to 40 •• *1 At packing storage : -30 •• to 40 •• * 1 *2 At transit (Packed) : -30 •• to 60 •• Dimension 30 mm (W) X 58 mm (D) X 38.5 mm (H) (1.22” X 2.36” X 1.
Product Description 1.2.10 Electric Specifications 120 V version Rated voltage :AC 120 V Input voltage range :AC 103.5 to 132 V Rated frequency renege :50 to 60 Hz Input frequency range :49.5 to 60.5 Hz Rated current :0.7 A (maximum) Power consumption :Approximately 21 W (ISO/IEC 10561 Letter pattern) Conforms to Energy Star program Insulation resistance :10 M ohms min. (Between AC line and chassis, DC 500 V)) Dielectric strength :AC 1,000 V rms. (1 minute) or AC 1,200 V rms.
EPSON Stylus COLOR 1520 1.2.12 Reliability Total print volume Print head life :75,000 pages (A4/Lletter) :2,000 million dots /nozzle 1.2.13 Safety Approvals 120 V version Safety standards EMI 220 - 240 V version Safety standards EMI :UL1950 with D3 CSA22.2 No. 950 with D3 :FCC part15 subpart B class B :EN 60950 (TÜV, NEMKO) :EN 55022 (CISPR Pub.22) class B :AS/NZS 3548 class B) 1.2.
Product Description 1.3 Interfaces 1.3.1 Parallel Interface 1.3.1.1 Forward Channel Specifications Transmission mode Synchronization Handshaking Signal level :8 bit parallel , IEEE-P1284 compatibility mode :/STROBE pulse :BUSY and /ACKNLG signal :TTL compatible level (IEEE-P1284 Level 1 device) Table 0-15. Signal level of TTL Compatible (IEEE-1284 level 1 device) Parameter Minimum Maximum Condition VOH* 5.5 V VOL* -0.5 V IOH* 0.32 mA VOH = 2.4 V IOL* 12 mA VOL = 0.4 V CO 50 pf VIH 2.0 V VIL 0.
EPSON Stylus COLOR 1520 Table 1-16 shows the connector pin assignment and signals for forward channel of the parallel interface. Table 0-16. Data Transmission Timing Parameter Minimum Maximum tsetup 500 ns thold 500 ns tstb 500 ns tready 0 tbusy 500 ns tt-out* 120 ns tt-in** 200 ns treply tack 500 ns 10 us tnbusy 0 tnext 0 Note) * : Rises and falls in time of every output signals. **: Rises and falls in time of every input signal. Table 0-17. Connector Pin Assignments and Signals (Forward Channel) Pin No.
Product Description 1.3.1.2 Reverse Channel Specifications Transmission mode Adaptable connector Synchronization Handshaking Data transmission timing Signal level :IEEE-1284 nibble mode :Same as for the forward channel :Refer to the IEEE-1284 specification :Refer to the IEEE-1284 specification :Refer to the IEEE-1284 specification :IEEE-1284 level 1 device See the forward channel specification.
EPSON Stylus COLOR 1520 1.3.2 Mac Serial Interface 1.3.2.1 Serial Interface Specifications Standard Synchronization Bit rate Word format Handshaking Adaptable connector Recommended I/F cable :RS-423 compliance :Synchronous :Approximately 900 Kbps, 1.8 Mbps :Start bit 1 bit :Data bit 8 bit :Parity bit No parity bit :Stop bit 1 bit :X-ON/XOFF, DTR protocol :8-pin mini circular connector :Apple System Peripheral-8 cable Table 0-19. Connector Pin Assignment for Serial Interface Pin No.
Product Description 1.3.3 Optional Interface The EPSON Stylus COLOR 1520 supports an optional Type-B interface (Level 2) with the following characteristics.
EPSON Stylus COLOR 1520 1.3.4 Prevention Hosts from Data Transfer Time-out Generally, hosts abandon data transfer to peripherals when a peripheral is in the busy state for dozens of seconds continuously. To prevent hosts from this kind of time-out, the printer receives data very slowly, several bytes par minute, even the printer is in busy state. This slowdown starts when the rest of input buffer drops under several hundreds of bytes.
Product Description 1.4 Operation This section describes the controls, settings and adjustment used to operate the EPSON Stylus COLOR 1520. 1.4.1 Control Panel The control panel of this printer consists of 6 non-lock push switches, 1 lock type push switch, and 6 LED indicators for easy operation of the various printer functions. Refer to Figure 0-10 for button and LEDs descriptions and how they are arranged.
EPSON Stylus COLOR 1520 Panel Functions :The function of each button is described below. 1 Power Function Available condition :Turns the printer off or on * . :Always Load/Eject Function Available condition :Loads and ejects the paper. :Pause/Stand-by LF/FF Function Available conditions :Feeds one line or page. :Pause / Stand-by Pause Function Available conditions :Alternates the printer state between printing and nonprinting.
Product Description 1.4.2 Panel Functions at Power On This printer also enters various functions by turning on the printer while holding down a button ( buttons). Each combination and corresponding function is described in the table below. Table 0-23. Panel Functions at Powered On 1 Function Switch * (while turning on the printer) Enters default setting mode. (See Section 1.4.4.) Micro adjust ↓ Pause Enters printer adjustment mode. (See Section 1.4.5.) Load /Eject Enters LQ self-test printing mode.
EPSON Stylus COLOR 1520 1.4.3 Printer Condition and Panel Status This printer has several printer conditions that are indicated by the LEDs on the control panel When any of the errors listed below occurs, the printer indicates an error condition and the /ERROR signal goes “Low” and Busy signal goes “High” to stop data transfer. This condition automatically puts the printer into “Pause” status. The carriage moves abnormally. (Fatal error) Paper out or Paper jam condition is detected.
Product Description 1.4.4 Cover Open Sensor Operation The cover open sensor equipped with this printer controls the carriage movement which has a possibility to hurt the user. The sensor performs followings: The printer cover opens during printing: The CR returns to the home position slowly after executing printing for the current pass. The cover open LED lights up and the printer goes into the stand-by status. To recover, close the cover and press the pause button to continue to print.
EPSON Stylus COLOR 1520 Start Press the Pause button, and turn on the printer. The printer prints the instruction sheet on how to select the language. 1.Move through the languages listed by pressing the alt button. 2.Select the language by pressing the Pause button. The printer prints the instruction sheet on how to adjust the printer. Adjust a patterns ? YES 1. Select the appropriate test by pressing the Alt button. 2. Press the Load/Eject button. The printer prints the test patterns.
Product Description 1.4.5.2 Setting Menus The default setting menus are described in the table below. Table 0-25. Default Setting Menu Menu 2 Print direction* Font Setting * 1 Auto / Bi-d / Uni-D Roman / Sans Serif / Courier / Prestige / Script/ Roman T / Sans Serif H / Draft Pitch 10 cpi / 12 cpi / 15 cpi / 17.
EPSON Stylus COLOR 1520 Table 0-26. Print Direction Mode Characteristics Auto Bi-D Uni-D Black and White Printing y Throughput and quality is better. YMCK Printing (color) y Throughput is better. y Color quality with special paper is worse. (Color correction depends on the print direction.) y Throughput is the best. y Color quality with special paper is worse. (Color correction depends on the print direction.) y Throughput is worse. y Color quality is the best. y Throughput is the best.
Product Description 1.4.6 Printer Adjustment Mode The EPSON Stylus COLOR 1520 allows users to adjust the printing direction and head gap without a special program. The following chart shows the adjustments method . 1.4.6.1 Adjustment Method Start Press the Pause button, and turn on the printer. The printer prints the instruction sheet on how to select the language. 1.Move through the languages listed by pressing the alt button. 2.Select the language by pressing the Pause button.
EPSON Stylus COLOR 1520 1.4.7 Printer Initialization This printer has three initialization types: Power-on initialization, Operator initialization, and Software initialization. Power-on Initialization This printer is initialized when turning on the printer. Then the printer recognizes the cold reset command (Remote RS command). When the printer is initialized, following actions are performed: Initialize the printer mechanism. Clears input data buffer. Clears download character set.
Product Description 1.5 Physical Specification Weight Dimension :6.5 Kg :666 mm (W) X 554 mm (D) X 202 mm (H) (26.2” X 21.8” X 7.9”) Refer to Appendix for details. Rev.
EPSON Stylus COLOR 1520 1.6 Main Components The main components of the EPSON Stylus COLOR 1520 are designed for easy removal and repair. They are as follows: Main control board Power supply board Control panel bard Printer mechanism Housing :C211 MAIN Board :C172 PSB/PSE Board :M-4160 1.6.1 C211 MAIN Board This board consists of a 16-bit CPU (IC7) (clock wave : 19.
Product Description 1.6.2 C172 PSB/PSE Board This board consists of a transformer, switching FET, regulator IC, diode bridge, fuse, and so on. Fuse Regulator IC Diode Bridge Transformer Switching FET Figure 0-14. C211 PSB/PSE Board Component Layout Rev.
Chapter 2 Operating Principles 2.1. Overview...............................................................................................................2-1 2.2. Printer Mechanism Operating Principle ............................................................2-1 2.2.1.1. M-4I60 Printer Mechanism ....................................................................................... 2-1 2.2.2. Printing Mechanism ..............................................................................................
Operating Principles 2.1 Overview This chapter describes the operating principle of the printer mechanism and electrical circuit. 2.2 Printer Mechanism Operating Principle 2.2.1.1 M-4I60 Printer Mechanism This printer is composed of the printhead unit, paper feeding mechanism, CR mechanism and the pump mechanism. The block chart for the printer mechanism is shown in Figure 2-1. The printer mechanism of this printer has 2 motors: CR motor and PF motor.
EPSON Stylus &2/25 1520 2.2.2 Printing Mechanism The printing method used for this printer is On-demand ink jet, same as for other EPSON ink jet printers. The new method used for the printhead enables the printer to produce output in high quality at a higher speed. The printing mechanism has 2 parts: ink cartridge and printhead. The ink cartridge is filled with ink. 2.2.2.1 Printhead Structure The printhead for this printer has the black head and color head.
Operating Principles 2.2.2.2 Printing Process Steps bellow describe how the ink is ejected from each nozzle with the on-demand ink jet system. Normal state No print signal is applied to the PZT. In this state, the PZT does not displace and no pressure is added inside the cavity. Therefore the pressure in the cavity is kept at a constant level. Ejecting state Print signal is applied to a specific nozzle by the head driver circuit to drive the PZT of the nozzle.
EPSON Stylus &2/25 1520 Table 2-1.
Operating Principles 2.2.3 Carriage (CR) Mechanism The CR mechanism is composed of the CR unit, timing belt, CR guide shaft, paper eject frame, HP sensor (Home Position sensor) and CR motor. The CR motor sends torque to the timing belt to move the CR unit in the both right and left directions along the paper eject frame and CR guide shaft. A stepping motor used for the CR motor enables the CR unit to move and stop at any position.
EPSON Stylus &2/25 1520 2.2.4 Paper Feed Mechanism The paper feed mechanism of this printer consists of the integrated ASF (Auto Sheet Feeder) mechanism, tractor mechanism, PF (Paper Feed) motor, front/rear PE (Paper End) sensors, PF roller, paper guide mechanism, paper eject unit, and PF motor drive disengage mechanism. The torque from the PF motor drives the paper load mechanism, paper feed mechanism and paper eject mechanism.
Operating Principles 2.2.4.1 ASF (Auto Sheet Feeder) Mechanism Torque from the PF roller is transmitted to the pick up roller in the ASF mechanism via the planetary gear by the PF motor drive disengage mechanism which switches the torque based on the detected position of the CR unit. The pick up roller shaft has 2 arms on the right and left ends. The arms push down the paper support to make the paper surface contact with the pick up roller.
EPSON Stylus &2/25 1520 2.2.4.2 Tractor Mechanism Torque sent from the PF motor to the gears at the left end of the PF roller is transmitted to the tractor gears via disengage mechanism by the release lever operation. When the release lever is set to the tractor side, the release sensor detects the position and the torque from the ASF mechanism is disengaged consequently. Tractor Disengage Gear Release Lever PF Motor Rear PE Sensor PF Motor Pinion Gear PF Roller Disengage Gear Figure 2-7.
Operating Principles 2.2.5 Platen Gap (PG) Adjust Mechanism The PG adjust mechanism, located at the top right of the printer mechanism, allows the user to set the proper platen gap (distance between paper and nozzle surface) for the paper thickness to prevent ink smudging. The PF Adjustment mechanism consists of the PG adjust lever, CR guide shaft, and parallelism adjust bushings. Shifting the lever from “0” to “1” turns the CR guide shaft that joins to the lever.
EPSON Stylus &2/25 1520 2.2.6 Ink System The ink system for this printer is composed of the following mechanisms. Ink cartridge Pump mechanism Capping mechanism Waste ink drain pads Wiping mechanism Figure 2-9 shows the block chart of the ink system. Color Ink Cartridge Black Ink Cartridge Cleaner Head for Black and Color Inks PF Motor Clutch Unit Combination Gear Disengage Gear Air Valves Pump 1 Pump Unit Gear Pump 2 Waste Ink Drain Pads Figure 2-9. Ink System Mechanism 2-10 Rev.
Operating Principles 2.2.6.1 Pump Mechanism 1. Switching operation from the paper feed mechanism to the pump mechanism The PF motor also functions as the pump motor by the switching operation of the PF motor drive disengage mechanism. When the CR unit returns to the home position, the switch lever in the CR unit pushes the cam lever. Then the disengage gear switches the torque from the ASF to the pump mechanism via the gear train.
EPSON Stylus &2/25 1520 2. Switching operation from the pump mechanism to the paper feeding mechanism When the CR unit shifts from the right end to the left end, the switch lever in the CR unit pushes the cam release. Then the disengage gear switches the torque from the pump mechanism to the paper feed mechanism as a result. Figure 2-13 illustrates how the torque is transmitted from the pump mechanism to the paper feed mechanism.
Operating Principles 3. Pump Mechanism Operation The pump mechanism absorbs ink inside the printhead and drains the ink to the waste ink drain pads via the cap. Since this printer has black and color heads, the pump mechanism functions for the both heads by alternating rotational directions of the PF motor. When the PF motor rotates forward (the direction for feeding paper), the pump is used for the black head.
EPSON Stylus &2/25 1520 2.2.7 Capping Mechanism The capping mechanism caps the printheads with the cap holders to prevent the ink around the nozzles from increasing viscosity while the printer is in the stand-by status or the printer power is off. The cap is individually equipped for the black and color head. When the CR moves right from the home position, the cap holder also shifts right and strikes the right frame. This motion opens the air valve to release the air in the cap.
Operating Principles 2.2.7.1 Wiping/CR Lock Mechanism The wiping mechanism removes the ink and dust adhered around the nozzles. This is operated during a cleaning sequence. When the PF motor rotates backward, the torque sent via the head cleaner (wiper) drive gear and the clutch moves the head cleaner to the path of the printhead. Then the CR unit moves right and left to wipe the nozzle surface against the head cleaner. The head cleaner leaves the path with the forward rotation of the PF motor.
EPSON Stylus &2/25 1520 2.3 Electrical Circuit Operation Principles This printer consists of the following circuit board: C211 MAIN board C178 PSB/PSE board C211 Panel board Head driver circuits (nozzle selection circuit) are directly attached to the black and color heads. Figure 217 shows the block diagram of the electrical circuit. C211 PNL M-4I60 Mechanism Unit C172 PSB/PSE +5 VDC CR/PF Motor C211 MAIN +42 VDC CR Unit Black Head Color Head Driver Circuit Driver Circuit Figure 2-17.
Operating Principles Figure 2-18 illustrates the electrical circuit diagram.
EPSON Stylus &2/25 1520 2.3.2 C211 MAIN Control Board This printer uses C211 MAIN for the main control circuit board. It consists of the following: 16-bit CPU C90A02CB (IC7) :Running at 19.66 MHz 2 gate arrays E05B33 (IC6) :Controls interfaces, motors and printheads. E05B34 (IC5) P-ROM, DRAM and MROM Drivers :Produces common voltage for the motors and printheads. Table 2-8 and Figure 2-19 show the allocated functions for major components and the main control circuit block diagram, respectively.
Operating Principles P-ROM(8M) (IC14) P-ROM(4M) (IC11) DRAM(4M) (IC9) DRAM(4M) (IC10) MROM (IC13) MROM (IC12) +42VDC Data Bus Type-B I/F Head Temperature +42V Power Line Reset IC M51955BFP (IC4) +5V Logic Line Reset IC RST592D (IC1) +5VDC Address Bus GA E05B34 (IC5) CPU C90A02CB (IC7) PSC CR Motor Control Control Panel PE, Cover Open, REL Sensors HP, DE Sensors +5V EEPROM LE93C56 (IC2) +5V Lithium Battery GA E05B33 (IC6) CLK Black/Color Control Signals PF Motor Control Signal Parallel I
EPSON Stylus &2/25 1520 2.3.2.1 Reset Circuits The C211 MAIN board contains two reset circuits: logic line (+5 9) and power (+42 9) line. Reset IC M51955BFP (IC4) monitors the +42 9 line. It outputs /NMI signal to the CPU and the gate array to cut off the power line for the motors when the voltage level drops below 33.2 V. Reset IC RST592D (IC1) monitors the +5 V line and sends low pulse when the voltage level drops below 42 V.
Operating Principles CCO sensor (Color ink cartridge sensor) CCO sensor, attached to the color ink cartridge holder in the CR unit, detects if the color ink cartridge is installed. A mechanical switch used for this sensor indicates Low with a cartridge installed and goes High without it. When the sensor detects no cartridge condition, it resets the ink consumption counter.
EPSON Stylus &2/25 1520 2.3.2.3 CR Motor Driver Circuits The CR motor driver IC SLA7043M (IC15) sends motor phase data using the serial data (XCRCLK, XCRSTB, CRASERI, CRBSERI) and voltage reference data (CRV) from the gate array E05B34 to the driver to control the phase current in the driver. The data output from the phase A and phase B (CRASERI, CRBSERI) are transferred synchronizing with the clock signal (XCRCLK). Then the data is read at the driver IC by the strobe signal (XCRSTB).
Operating Principles 2.3.2.4 PF Motor Driver Circuit The PF motor for this printer operates the following: Paper loading Paper feeding Pumping The gate array E05B33 (IC6) outputs the phase drive control signals (PFAPH and PFBPH), phase data (PFA0/1 and PPFB1/0) and voltage reference data (PFV) to the driver IC UDN2917EB (IC16). The driver IC then controls the phase current based on the voltage reference data. This sequence enables the micro step with a minimum of 1/720 inch at 2-2 phase.
EPSON Stylus &2/25 1520 2.3.2.5 Printhead Driver Circuit This printer has 2 separate printhead driver circuits:for the black head and for the color head. Each circuit has the common voltage driver circuit attached to the MAIN board and the nozzle selection circuit attached to the head driver circuit board. The common driver circuits for the both black and color heads are composed of the hybrid ICs (IC19) and the terminal transistors.
Operating Principles Common driver circuit for the black head Gate array E05B33 (IC6) sends serial data to the head nozzle selection circuit on the head to select nozzles to activate. Then the data is transferred to the common driver on the control board to drive all piezos that are corresponding to each nozzle.
EPSON Stylus &2/25 1520 Color head nozzle selector circuit The operating principle for the color head is the same as for the black head except that color print is performed with data for 3 different colors: yellow, cyan, and magenta. The operating principle for the color head is as described below: Nozzle selection circuit The nozzles for the color head are divided into 3: for yellow, cyan, and magenta with 64 nozzles for each of them.
Operating Principles 2.4 Ink System Management This section explains how the ink system is controlled to protect the printheads and to ensure the output in high quality.
EPSON Stylus &2/25 1520 2.4.2 Counters This printer is equipped with following counters. The values for the counters are stored in the EEPROM on the MAIN control board. Protect Counter A This counter is used to manage the total amount of drained ink. If the counter value exceeds 65,000, the maintenance error occurs and the current printing job stops consequently. (Refer to Section 1.4.11.) This error requires EEPROM clear and waste ink drain pad replacement. (Refer to Section 1.4.3 and Section 3.2.9.
Chapter 3 Disassembly and Assembly 3.1 Overview................................................................................................................3-1 3.1.1 Precautions for Disassembling the Printer.......................................................................... 3-1 3.1.2 Tools ........................................................................................................................................ 3-2 3.2 Disassembly and Assembly.........................................
Disassembly and Assembly 3.1 Overview This section describes procedures for disassembling the main components of EPSON Stylus COLOR 1520. Unless otherwise specified, disassembly units or components can be reassembled by reversing the disassembling procedure. Therefore, no assembly procedures are included in this section. Precautions for any disassembly or assembly procedure are described under the heading “WORK POINT”.
EPSON Stylus &2/25 1520 CAUTION ; Never remove the ink cartridge from the carriage unless manual specifies to do so. ; When transporting the printer after installing the ink cartridge, be sure to pack the printer for transportation without removing the ink cartridge. ; Use only recommended tools for disassembling, assembling or adjusting the printer. ; Apply lubricants and adhesives as specified. (See Chapter 6 for details.) ; Make the specified adjustments when you disassemble the printer.
Disassembly and Assembly 3.2 Disassembly and Assembly This section describes disassembly and assembly procedures for the printer assemblies and parts. See the precautions in Section 3.1.1 when disassembling and assembling. CAUTION See the precautions in Section 3.1.1 prior to disassembly and assembly.
EPSON Stylus &2/25 1520 3.2.1 Upper Housing Removal 1. Remove the knob, release lever, rear sheet guide, output tray, and paper support. 2. Remove the tractor unit by releasing the hook using the tweezers, then remove it from the printer mechanism unit by lifting up the rear edge of the tractor unit. Hook in the Tractor Unit Tweezers Tractor Unit Figure 3-2. Tractor Unit Removal 3.
Disassembly and Assembly 4. 5. Remove 3 screws (CBB, 3X12) and 2 screws (CBB, 4X2) securing the upper housing to the lower housing. Insert the tweezers into the cutouts at the bottom of the upper housing to release the hooks fixing the upper housing to the lower housing. Then remove the upper housing. WORK POINT ; After replacing the upper housing or printer cover, be sure to attach the label such as the CAUTION label to the specified position.
EPSON Stylus &2/25 1520 3.2.2 ROM Replacement 1. Remove 1 screw (CBP, 3X8) securing the ROM cover to the lower housing, and remove the ROM cover. Remove the ROM. 2. CAUTION ; Never replace the ROM before unplugging the power cable. 3-6 Rev.
Disassembly and Assembly 3.2.3 Print Head Removal 3.2.3.1 Black Head Removal 1. 2. 3. 4. 5. 6. 7. 8. Remove the upper housing. (Refer to Section 3.2.1.) Remove the ink cartridge if it is installed. Remove the FFC holders from the front left corner of the CR unit. Then release the FFCs by pulling them toward the printhead side. Disconnect the black head FFC from the black head connector. Remove the cartridge lever. Remove the compression spring fixing the black head to the CR unit.
EPSON Stylus &2/25 1520 3.2.3.2 Color Head Removal 1. 2. 3. Remove the upper housing. (Refer to Section 3.2.1.) Remove the ink cartridge if it is installed. Remove the FFC holders from the front left corner of the CR unit. Then release the FFCs by pulling them toward the printhead side. Disconnect the color FFC from the color head connector. Remove the Cartridge Lever. Remove the compression spring fixing the black head to the CR unit. Remove the screw securing the color head to the CR unit.
Disassembly and Assembly 3.2.4 Home Position (HP) Sensor Removal 1. 2. 3. Remove the upper housing. (Refer to Section 3.2.1.) Disconnect the connector cable from the HP sensor connector. Release the hooks fixing the HP sensor to the paper eject frame using the tweezers, then remove the HP sensor. WORK POINT ; After reassembling the HP sensor to the paper eject frame, be sure to fix the hooks to the frame using the specified adhesive. (Refer to Chapter 6.
EPSON Stylus &2/25 1520 3.2.5 Cover Open Sensor Removal 1. 2. 3. Remove the upper housing. (Refer to Section 3.2.1.) Disconnect the cover open sensor connector cable from the cover open sensor connector. Release the hooks fixing the Cover Open Sensor to the paper eject frame using the tweezers then remove the Cover Open Sensor. Cover Open Sensor Hook Figure 3-7. Cover Open Sensor Removal 3-10 Rev.
Disassembly and Assembly 3.2.6 Printer Mechanism Unit Removal 1. 2. 3. 4. Remove the upper housing. (Refer to Section 3.2.1.) Disconnect the connector cables from the connectors CN3, CN4, CN8, CN9, CN10, CN11, CN12, CN13, CN14, and CN15 on the C211 MAIN Board. Remove 4 screws (CBB, 4X14) securing the printer mechanism unit to the lower housing. Lift up the printer mechanism unit and remove it.
EPSON Stylus &2/25 1520 3.2.7 PSB/PSE Board Assembly Removal 1. 2. 3. 4. Remove the upper housing. (Refer to Section 3.2.1.) Remove the printer mechanism unit. (Refer to Section 3.2.6.) Disconnect the power cable connector from CN1, and the C211 MAIN board connector cable from the CN2. Remove 4 screws (CBP, 3X12) securing the PSB/PSE Board to the lower housing, and remove the PSB/PSE Board. WARNING ; Make sure that the AC power cable is unplugged before disconnecting the power cable connector.
Disassembly and Assembly 3.2.8 C211 MAIN Board Assembly Removal 1. 2. 3. 4. 5. Remove the upper housing. (Refer to Section 3.2.1.) Remove the printer mechanism unit. (Refer to Section 3.2.6.) Disconnect the connector cable for the PSB/PSE board from CN2, and the Control Panel FFC from CN7. Remove 7 screws (CBP, 3X12) and 2 screws (CBS, M3X6) securing the C211 MAIN board assembly to the lower housing. Then remove the C211 MAIN board assembly, along with the Type-B interface shield cover.
EPSON Stylus &2/25 1520 Screw (CBS 3x12) CN4 CN3 Shield Cover for the Type-B I/F Screw (CBS 3X6) Screw (CP 3X6) Screw (CBP 3X12) CN15 CN14 Connector Cable for ther Control Panel Screw (CBS 3X6) CN5 Screw (CBP 3X12) CN8 CN9 CN10 CN11 CN13 CN12 FFCs for the Heads Screw (CBP 3X12) Main Board Assembly CN2 Screws (CBS 3x12) Lower Housing Figure 3-10. C202 MAIN Board Removal 3-14 Rev.
Disassembly and Assembly 3.2.9 Waste Ink Drain Pad Removal Waste Ink Drain Pads must be replaced when the printer is under the following conditions: The value for the protect counter A has reached the specified value (65,000) and the maintenance request error is indicated. The indicated value of the Protect counter is more than 52,000. (In this case, be sure to replace them by agreement with your customer.
EPSON Stylus &2/25 1520 3.2.10 Printer Mechanism Unit Disassembly This section describes how to disassemble and reassemble the units and parts in the M-4160 printer mechanism. 3.2.10.1 Carriage (CR) Motor Assembly Removal 1. 2. 3. 4. Remove the printer mechanism unit. (Refer to 3.2.6.) Release the timing belt by removing the extension spring. Disengage the timing belt from the pulley on the CR motor assembly.
Disassembly and Assembly WORK POINT ; When mounting the CR motor, make sure that the connector cable for the DE (disengage) sensor doesn’t cut in. ; CR fan motor and the CR motor assembly are 2 different parts. Therefore be sure to attach the CR fan motor when replacing the CR motor assembly. Use the specified adhesive to attach the fan to the motor shaft. (Refer to Chapter 6.) Note the following when attaching the fan: Do not insert the fan more than 1 mm from the shaft end.
EPSON Stylus &2/25 1520 3.2.10.2 PF (Paper Feed) Motor Assembly Removal 1. 2. 3. Remove the printer mechanism unit. (Refer to 3.2.6.) Remove the connector cable for the PF motor assembly from the connector cable clump on the printer mechanism unit. Remove 2 hexagon nuts securing the PF motor assembly to the middle frame using a spanner, then remove the PF motor assembly. WORK POINT ; The pinion gear on the PF Motor Assembly is highly precise and tends to rust easily.
Disassembly and Assembly 3.2.10.3 DE (Disengage) Sensor Removal 1. 2. 3. Remove the printer mechanism unit. (Refer to 3.2.6.) Using the tweezers, release the hooks fixing the DE sensor to the cam select assembly, then remove the DE sensor. Remove the connector cable from the connector for the DE sensor. Connector Cable for the DE Sensor Cam Select Assembly Tweezers DE Sensor Hook fixing the DE Sensor Figure 3-15. DE Sensor Removal Rev.
EPSON Stylus &2/25 1520 3.2.10.4 Front/Rear PE (Paper End) Sensor Removal 1. 2. 3. Remove the printer mechanism unit. (Refer to 3.2.6.) Using the tweezers, release the tubs fixing the Front/Rear PE sensors to the rear paper guide at the bottom of the printer mechanism unit. Disconnect the connector cables for the PE sensor from the PE sensor connectors.
Disassembly and Assembly 3.2.10.5 REL (Release) Sensor Removal 1. 2. Remove the printer mechanism unit. (Refer to 3.2.6.() Using the tweezers, release the tabs fxing the REL sensor to the left frame assembly. Then remove the REL sensor. Tweezers Tab Fixing the Release Sensor Release Sensor Connector Cable for the Release Sensor Figure 3-17. REL Sensor Removal Rev.
EPSON Stylus &2/25 1520 3.2.10.6 Edge Guide Unit Removal 1. 2. 3. Remove the printer mechanism unit. (Refer to Section 3.2.6.) Release the joints for the edge guide unit and the right and left paper load roller slide covers. Remove 2 flange nuts (M4) securing the edge guide unit to the left and middle frame assemblies. Then remove the edge guide unit.
Disassembly and Assembly 3.2.10.7 Paper Eject Frame Removal 1. 2. 3. 4. Remove the printer mechanism unit. (Refer to Section 3.2.6.) Disconnect the connector cables for HP sensor and cover open sensor from the connectors. Remove 3 screws (CBS, M3X6) securing the paper eject frame to the printer mechanism unit. Remove the paper eject frame by releasing the joints. Screw (CBS 3X6) Paper Eject Frame Screws (CBS 3X6) Printer Mechanism Unit Figure 3-20.
EPSON Stylus &2/25 1520 3.2.10.8 Pump Unit Removal 1. 2. 3. Remove the printer mechanism unit. (Refer to Section 3.2.6.) Remove the paper eject frame. (Refer to Section 3.2.10.7.) Remove 2 screws (CBS, 3X6 and CBP, 3X8) securing the pump unit to the printer mechanism unit. Then remove the pump unit. Head Cleaner Screw (CBS 3X6) Pump Unit Head Cleaner Lever Right Frame Assembly Middle Frame Assembly Screw (CBP 3X8) Figure 3-21.
Disassembly and Assembly 3.2.10.9 Carriage (CR) Unit Removal 1. 2. 3. 4. 5. 6. 7. 8. Remove the printer mechanism unit. (Refer to Section 3.2.6.) Remove the extension spring to release the timing belt. (Refer to the step 2 in Section 3.2.10.1.) Disengage the timing belt from the pulley and sub pulley in the CR motor assembly. Remove 2 E-rings and 2 plain washer from the both edges of the CR guide shaft.
EPSON Stylus &2/25 1520 WORK POINT ; After removing the CR unit, do not touch and damage the heads. Protect the heads from static electricity, because the head drive circuit is directly attached to the head board. ; Pay attention to the oil pad when removing the CR guide shaft from the CR unit. It tends to dislocate. ; When installing the CR guide shaft to the printer mechanism unit, be sure to fit the platen gap adjust lever to the right frame assembly. (Refer to the figure below.
Disassembly and Assembly 3.2.10.10 Base Frame Assembly Removal 1. 2. 3. 4. Remove the printer mechanism unit. (Refer to Section 3.2.6.) Remove the paper eject frame. (Refer to Section 3.2.10.7.) Remove the CR unit. (Refer to Section 3.2.10.9.) Remove 1 E-ring fixing the gear (46) and compression spring (1.96) to the left frame assembly. Then remove the gear along with 2 plain washers and the compression spring. WORK POINT ; Be careful not to lose the compression spring.
EPSON Stylus &2/25 1520 3.2.10.11 Paper Load Roller Unit Removal 1. 2. 3. 4. 5. 6. Remove the printer mechanism unit. (Refer to Section 3.2.6.) Remove the paper eject frame. (Refer to Section 3.2.10.7.) Remove the CR unit. (Refer to Section 3.2.10.9.) Remove the base frame assembly. (Refer to Section 3.2.10.10.) Attach the knob to the PF roller shaft, and press the trigger lever down. Then rotate the paper load roller unit by turning the knob clock wise to hold the edge guide unit down.
Disassembly and Assembly Gear (PF Roller) ASF Tarnsmission Gear Set Bushing Paper Load Shaft E-ring Bushing Edge Guide PF Roller Figure 3-26. Paper Load Roller Removal Rev.
EPSON Stylus &2/25 1520 WORK POINT ; Note the direction in which the paper load gear and the gear (29) are engaged. (Refer to the figure below.) ; Do not touch the gear teeth with your bare hands. Damaged gear may lose accuracy in paper feeding. Gear 29 (ASF Transmission Gear Set) Gear (PF Roller) Figure 3-27. Gear Engagement 3-30 Rev.
Disassembly and Assembly 3.2.10.12 Paper Feed (PF) Roller Removal 1. 2. 3. 4. 5. Remove the printer mechanism unit. (Refer to Section 3.2.6.) Remove the paper eject frame. (Refer to Section 3.2.10.7.) Remove the CR unit. (Refer to Section 3.2.10.9.) Remove the base frame assembly. (Refer to Section 3.2.10.10.) Remove 1 screw (CBP, 3X8) securing the paper eject drive unit to the left frame assembly. Then remove the paper eject drive unit by lifting up the front edge. 6.
EPSON Stylus &2/25 1520 3.2.10.13 Rear Paper Guide Removal 1. 2. 3. 4. 5. 6. 7. 8. Remove the printer mechanism unit. (Refer to Section 3.2.6.) Remove the paper eject frame. (Refer to Section 3.2.10.7.) Remove the CR unit. (Refer to Section 3.2.10.9.) Remove the base frame assembly. (Refer to Section 3.2.10.10.) Remove the PF roller. (Refer to Section 3.2.10.12.) Remove the edge guide. (Refer to Section 3.2.10.6.
Chapter 4 Adjustment 4.1 Over View ..............................................................................................................4-1 4.1.1 Platen Gap Adjustment .......................................................................................................... 4-2 4.1.2 Initialize Operation ................................................................................................................. 4-4 4.1.3 Head Voltage Write Operation ............................................
Adjustment 4.1 Overview This section describes adjustmenta required after disassembling and assembling the printer. CAUTION ; Adjustment must be performed in the order numbered in Table 4-1. ; Be sure to leave the ink cartridges installed in the CR unit when returning the printer to the customer. ; Use 720 dpi exclusive paper when printing the adjustment pattern. Table 4- 1 Required Adjustment Replaced Unit/Part Adjustment Menu 1. EEPROM Clear (Refer to Section 1.4.3.) Replacement of the printer 2.
EPSON Stylus &2/25 1520 4.1.1 Platen Gap Adjustment This adjustment is performed to obtain the appropriate gap between the head nozzle surface and the platen. It must be adjusted after removing or replacing the CR guide shaft, CR unit or parallelism adjust bushing. The specified value for the platen gap is 1.16 ± 0.02 mm. 1. Set the right and left parallelism adjust bushings to the middle of the adjusting range. 2. Place the thickness gauge as illustrated below. Thickness Gauge Figure 4-1.
Adjustment Start Set the PG lever to "+". PG Adjustment Shift the CR to the left end. Does a 1.14-mm Gauge fit? Set the PG lever to "0". YES NO Adjust the PG. Widen the PG. NO Is the left PG OK? Does a 1.18-mm Gauge fit? YES Set the PG lever to "+". NO YES Shift t he CR to the right end. Narrow the PG. Set the PG lever to "0". Adjust the PG. NO Returm to the main flow. Is the right PG OK? YES Set the PG lever to "+". Shift the CR unit to the left end. Set the PG lever to "0".
EPSON Stylus &2/25 1520 4.1.2 Initialize Operation This operation is performed to write the factory values in the EEPROM on the MAIN board. With this operation, the factory values are written in at a time. 1. Connect the printer and the host computer with a parallel interface cable. 2. Start the adjustment program in the host computer. 3. Select ´&86720(5 6(7µ in the 1 st menu and press the Enter key. 4. Move the cursor using ↑ or ↓ key to select an appropriate customer code and area.
Adjustment 4.1.3 Head Voltage Write Operation This operation is performed to write the print head drive voltages in the EEPROM. You need to perform this operation whenever you replace the prihthead. 1. Connect the printer and the host computer with a parallel interface cable. 2. Run the adjustment program in the host computer. 3. Input the customer data. (Refer to Section 4.1.2.) 4. Move the cursor using ↑ or ↓ key to select ´$'-867µ in the 1st menu. Then press tKH Enter .
EPSON Stylus &2/25 1520 4.1.3.1 Finding out the Head Voltage Normally, the head voltage is not acknowledged without checking the head ID by removing the head. This program is, however, designed to read the head voltage data stored in the EEPPROM on the MAIN Board. This section described how to find out the head voltages. 1. Connect the printer and the host computer with a parallel interface cable. 2. Run the adjustment program in the host computer. 3. Input the customer data. (Refer to Section 4.1.2.
Adjustment 4.1.4 Black Head Angular Adjustment This adjustment must be made when replacing or disassembling the black head. The black head is held by the compression spring to the supporting point of the CR unit and the angle adjust lever located under the black head. The adjust lever is used to swing the black head in parallel to the printing surface. With this operation, the nozzles on the head are aligned parallel to the paper feed direction.
EPSON Stylus &2/25 1520 4.1.5 Color Head Angular Adjustment You must make this adjustment when replacing or disassembling the color head. The color head is, same as black head, held by the compression spring to the supporting point of the CR unit and the angle adjust lever located under the color head. The adjust lever is used to swing the color head in parallel to the printing surface. With this operation, the YMC heads are set at a proper angle. 1.
Adjustment 4.1.6 BK-M Height Adjustment This adjustment is needed when the black/color head or both heads are removed or disassembled. With this operation, the vertical position for the black and color head are aligned. To make the adjustment, adjust the vertical position for the color heads based on the black head position by moving the head vertical adjust lever. 1. Connect the printer and the host computer with a parallel interface cable. 2. Run the adjustment program in the host computer. 3.
Adjustment 4.1.7 Bi-d Adjustment This is required when the CR unit or CR motor is replaced or removed. You perform this operation to adjust the deviation occurs between lines printed in 2 different print directions when the printer is in the Bidirectional printing mode. 1. Connect the printer and the host computer with a parallel interface cable. 2. Start the adjustment program in the host computer. 3. Input the customer data. (Refer to Section 4.1.2.) 4.
EPSON Stylus &2/25 1520 4.1.8 Head GAP Adjustment This operation is required when the black/color head or the both heads are removed or replaced. It is performed to align the vertical lines between black and color heads. 1. Connect the printer and the host computer with a parallel interface cable. 2. Run the adjustment program in the host computer. 3. Input the customer data. (Refer to Section 4.1.2.) 4. Move the cursor using ↑ or ↓ key to select ´$'-867µ in the 1st menu.
Disassembly and Assembly 3.2.10.14 Middle Frame Assembly Removal 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. Remove the printer mechanism unit. (Refer to Section 3.2.6.) Remove the paper eject frame. (Refer to Section 3.2.10.7.) Remove the pump unit. (Refer to Section 3.2.10.8.) Remove the CR unit. (Refer to Section 3.2.10.9.) Remove the base frame assembly. (Refer to Section 3.2.10.10.) Remove the PF roller assembly. (Refer to Section 3.2.10.12.) Remove the edge guide unit. (Refer to Section 3.2.10.6.
Chapter 5 Troubleshooting 5.1 General Description .............................................................................................5-1 5.2 Unit Level Troubleshooting .................................................................................5-3 5.3 Repair of the C172 PSB/PSE Board at Component Level .................................5-9 5.4 Component Repair of the C211 MAIN Board ....................................................5-10 5.5 Repair of M-4I60 Printer Mechanism.................
Troubleshooting 5.1 General Description This section describes procedures for isolating the failure unit in 2 levels; unit level troubleshooting and the component level troubleshooting. You are to refer to the flowchart below to isolate the defective unit and perform repair at the component level. Table 5-1, Table 5-2 and Table 5-3 show the coil resistance for the CR motor and PF motor, sensor status , and Error codes and solution respectively.
EPSON 6W\OXV &2/25 1520 Table 5-2. Sensor Status Sensor HP sensor Test pin No. Signal level CN9/Pin 1 and Pin 2 Close (> 2.5V) Open (< 2.
Troubleshooting 5.2 Unit Level Troubleshooting This section provides flowcharts which enables you to isolate the defective unit. Once the defective unit is identified by following the corresponding chart, refer to Section 5.3 and 5.4 to identify more specific part to be replaced at the component level. Table 5-4. Symptom and Problem Symptom Problem Flowchart No. The printer does not operate at all. No LED lights up. 1 The printer mechanism does not operate at all. An error is indicated.
EPSON 6W\OXV &2/25 1520 1. The printer does not operate at all. START Is the AC input voltage correct? NO Apply the correct AC input voltage. YES Has the fuse (F1) on the PSB/PSE board blown? YES Replace the fuse and disconnect the connector CN2 on the PSB/PSE board. NO NO Check the voltage output from the CN2 on the PSB/PSE board. Is the voltage correct? Does the fuse blow again at power on? YES NO YES Replace the PSB/PSE board. Replace the MAIN board.
Troubleshooting 2. An error is indicated. START See Table 5-3 to identify the error type. Fatal error? YES Turn off the printer and move the carriage manually. NO Is the movement smooth? No ink cartridge or Ink low error? YES NO YES Replace the ink cartridge with a new one. Check the CR motor and drivers. If they are normal, replace the MAIN board. NO Release lever error? YES Release the release lever and check is any paper is loaded in the printer. YES NO Maintenace error has occurred.
EPSON 6W\OXV &2/25 1520 3. Printing operation is abnormal. START Perform the self-test. Does the self test print? NO Are all connector cables connected to the MAIN board securely? YES Is the the print result abnormal? YES NO NO Connect them properly. YES Perform the adjustments. (Refer to Chapter 4.) Repeat the cleaning sequence or perform the initial ink charge. YES Is the problem corrected? NO Is the problem corrected? YES NO Check the motors, drivers, and printheads.
Troubleshooting 4. The printer feeds paper abnormally START Is paper properly loaded in the ASF/tractor? NO Load the paper properly. YES Is the paper jam error indicated? YES Foreign objects are located in the paper path. NO Is the problem corrected? Check the PF motor and driver. If they are normal, replace the MAIN board. Is the problem corrected? YES NO NO Clean the PF roller and the paepr path.
EPSON 6W\OXV &2/25 1520 5. Control panel operation is abnormal. START Is the control panel properly connected? NO YES Connect the control panel properly. Is the problem corrected? YES NO Replace the control panel. Is the problem corrected? YES END NO Replace the MAIN board. END Figure 5-6. Flowchart (5) 5-8 Rev.
Troubleshooting 5.3 Repair of the C172 PSB/PSE Board at Component Level This section contains information which enables you to repair and replace the components on the electrical board (C172 PSB/PSE). Table 5-5 lists the potential causes for each symptom in order of possibility, with which you are able to find and repair the defective part. Table 5-5. Component Repair of the C172 PSB/PSE Board Symptom The printer does not operate at all. Condition Cause +42 VDC is Fuse (F1) is open. not output.
EPSON 6W\OXV &2/25 1520 5.4 Component Repair of the C211 MAIN Board This section provides information which enables you to repair and replace defective components on the C211-B MAIN board. Table 5-6 and 5-7 lists the causes for each symptom in order of possibility, with which you are able to find and repair the defective part. Table 5-6. Component Repair of the C211 MAIN Board (1) Symptom The printer does not operate at all. Condition Cause CPU doesn’t Reset circuit is operate. defective.
Troubleshooting Table 5-7. Component Repair of the C211 MAIN Board (2) Symptom CR does not operate normally. Condition Cause CR motor IC17 is defective. does not operate CR motor is normally. defective. The printer feeds paper abnormally. PF motor does not operate normally. Sub gate array IC16 is defective. Checkpoint Check the PF drive waveform output from the IC17. Check if the resistance of the motor coil is as follows; 5Ω ± 7 % at 25••/phase (Refer to Table 5-1.
EPSON 6W\OXV &2/25 1520 5.5 Repair of M-4I60 Printer Mechanism This section provides information which allows you to repair and replace defective components of the M4160 printer mechanism. Table 5-8, 5-9, and 5-10 contain various symptoms and the corresponding causes listed in order of possibility. Find the symptom in the table and troubleshoot the problem as instructed. Table 5-8. Repair of M-4I60 Printer Mechanism (1) Symptom CR unit operates abnormally.
Troubleshooting Table 5-9. Repair of M-4I60 Printer Mechanism (2) Symptom CR motor operates abnormally Condition Cause CR moves CR does not move slightly at smoothly. power on then stops. Checkpoint Move the CR manually and check if the movement is smooth. Check if the tension of the belt is appropriate. Check if the PG is proper. Printing is not performed. CR moves normally, but does not perform Printing. Check if the FFC is connected to the head and MAIN board.
EPSON 6W\OXV &2/25 1520 Table 5-10. Repair of M4I60 Printer Mechanism (3) Symptom Printing operation is abnormal. Paper is fed abnormally. 5-14 Condition A vertical line is not aligned. White banding problem occurs. Cause Bi-D is not properly adjusted. The head is defective. Checkpoint Solution Perform the adjustments. (Refer to Chapter 4.) Repeat cleaning at least 3 Replace the head unit. times and check if the condition is improved. If not, replace the head unit and run the self-test.
CHAPTER 6 Maintenance 6.1 Cleaning ................................................................................................................6-1 6.2 Service Maintenance ............................................................................................6-2 6.2.1 Head Cleaning......................................................................................................................... 6-2 6.2.2 Maintenance Request.......................................................................
Maintenance 6.1 Cleaning This chapter provides information on maintenance of this printer. This printer is basically designed to require no cleaning. It is, however, preferable to perform cleaning to preserve its function and output in the optimum quality for a long period of time. Therefore be sure to perform cleanings described in the following sections. WARNING ; Be sure to unplug the AC power cable before cleaning the printer. ; Be careful not to get ink in your eyes.
EPSON Stylus &2/25 1520 6.2 Service Maintenance When an abnormal printing or the maintenance request error occurs, perform maintenance service described below. 6.2.1 Head Cleaning In case abnormal printing result is identified, perform head cleaning sequence through the control panel operation. The head cleaning sequence is, however, automatically performed during printing operation to keep the printer in its best condition.
Maintenance 6.3 Lubrication and Adhesion of lubricant and adhesive has a considerable affect on the performance and durability of the printer, and specially lubrication at low temperatures r requires sensible selection of the lubricant. Therefore be sure to apply adequate lubricant specified by EPSON based on the analysis of technical information and result from the experimental use of lubricants and adhesives in wide range.
EPSON Stylus &2/25 1520 Table6- 3. Adhesive Points NO. 1 2 Adhesive Points Contact point of the CR motor shaft with the CR motor fan Right and left hexagon nuts on the edge guide unit CAUTION Do not apply too much lubricant or adhesive, as it may cause malfunction. 6-4 Rev.
Maintenance 1 1 1 3 3 2 2 3 4 6 6 6 6 6 6 5 7 7 7 7 Figure 6-1. Lubrication Points (1) Rev.
EPSON Stylus &2/25 1520 8 9 10 10 10 10 10 10 10 10 Figure 6-2. Lubrication Points (2) 6-6 Rev.
Maintenance CR Motor CR motor fan 1 Indent side facing outward 2 2 Figure 6-3. Adhesive Points Rev.
Appendix A.1 Connector Summary........................................................................................... A-1 A.1.1 Connector Pin Assignment ...................................................................................................A-2 A.2 Circuit Diagrams ................................................................................................. A-7 A.3 Component Layout............................................................................................ A-13 A.
Appendix A.1 Connector Summary Figure A-1 illustrates the interconnection of the main components. AC Input CN1 C172 PSB/PSE CN2 CR unit CN2 Parallel I/F Type-B I/F Color CN12 CN Color Head Monochrome CN13 CN Black Head CN6 CN3 CN5 CN10 C211-B MAIN Mac Serial I/F CN11 CN1 CN8 CN4 CN9 HP Sensor Front PE Sensor Rear PE Sensor Release Sensor DE Sensor Cover Open Sensor CN15 PF Motor CN14 CR Motor CN7 Printer Mechanism (M-4I60) C211 PNL Figure A-A-1.
EPSON 6W\OXV &2/25 1520 A.1.1 Connector Pin Assignment Table A-1 shows the locations an descriptions for the connectors on the circuit boards in this printer. Table from A-2 to A-13 show the pin assignment for each connector. Table A-1. Connector Summary Circuit Board C211 MAIN-B Board C172 PSB/PSE Board C172 PNL Board A-2 Connector No. CN1 CN2 Pin No.
Appendix Table A-2. Connector Pin Assignment (CN2) Pin No. 1 2 3 4 5 6 7 8 9 I/O O Signal Name GND + 42 + 42 GND +5 GND PSC GND +5 Description Ground + 42 VDC + 42 VDC Ground + 5 VDC Ground Power off signal Ground + 5 VDC Table A-3. Connector Pin Assignment (CN3) Pin No. 1 2 3 I/O O Signal Name SWA 0 +5 GND Description HP sensor signal + 5 VDC Ground Table A-4. Connector Pin Assignment (CN4) Pin No. 1 2 I/O O Signal Name SWA 1 GND Description DE sensor Ground Table A-5.
EPSON 6W\OXV &2/25 1520 Table A-6. Connector Pin Assignment (CN8) Pin No. 1 2 I/O I Signal Name SWA 1 GND Description Release sensor signal Ground Table A-7. Connector Pin Assignment (CN 9) Pin No. 1 2 I/O I Signal Name SWA 0 GND Description Cover open sensor signal Ground Table A-8. Connector Pin Assignment (CN 10) Pin No. 1 2 I/O I Signal Name PE_F GND Description Front PE sensor signal Ground Table A-9. Connector Pin Assignment (CN11) Pin No.
Appendix Table A-11. Connector Pin Assignment (CN13) Pin No.
Rev. A 1 3 4 1M/0.5W 2.5A/125V or 250V F1 R1 0.22U C1 2 L 1 N CN1 2 R2 3.9/5W C11 100-120VAC FG 2200P FG C4 220U/200V C8 1000P 4 3 HF2022-103Y0R7 L1 2 0.1u C2 2200P C3 1 DB1 D2SBA60 R12 R19 20K 11EQS04 D2 0.91/2W 1000P C31 39K R32 Q31 K1725 4700P C14 Q1 K2182 R18 3K HZS9A1L R31 IC1 TL431 10K 2 1 R13 4.7K R20 3 R14 510 Q3 2PA1015Y 390/0.5W R11 750K/0.5W R21 ZD31 R16 270 R15 510 0.01U C13 200K/0.5W Q2 C4408 C15 2200P/1.
A-12 1 C8 3 4 FG T1.25AH/250V F1 C4 1 2 N CN1 R12 D2 2/1W R19 20K 11EQS04 C11 56U/400V R2 10/5W 220-240VAC L 2200P FG 1M/0.5W R1 0.22U C1 2 1000P 4 3 HF2022-253Y0R4 L1 2 0.1u C2 2200P C3 1 DB1 S1VBA60 1000P C31 39K R32 Q31 K1725 2200P C14 K1603 Q1 R28 R16 270 510 R15 R11 HZS9A1L 3K TL431 IC1 10K 2 1 R13 4.7K R20 3 R14 510 Q3 2PA1015Y 1.1K R31 910K/0.5W R18 220K/0.5W R21 ZD31 C4408 4700P C13 300K/0.5W Q2 1000P/1.
Appendix A.3 Component Layout Figure A-A-6. C211 MAIN-B Board Component Layout Rev.
EPSON 6W\OXV &2/25 1520 Figure A-A-7. C172 PSB Board Component Layout A-14 Rev.
Appendix Figure A-A-8. C172 PSE Board Component Layout Rev.
EPSON 6W\OXV &2/25 1520 A.4 Exploded Diagrams Figure A-A-9. Stylus &2/25 1520 Exploded Diagram (1) A-16 Rev.
Appendix Figure A-A-10. Stylus &2/25 1520 Exploded Diagram (2) Rev.
EPSON 6W\OXV &2/25 1520 Figure A-A-11. Stylus Color 1520 Exploded Diagram (3) A-18 Rev.
Appendix A.5 Parts List Table A-14. Part No. Reference Table (1) Reference No. 100 101 102 103 104 105 106 107 108 109 110 111 112 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 131 132 133 134 135 136 137 138 139 140 141 142 145 147 149 Rev.
EPSON 6W\OXV &2/25 1520 Table A-15. Part No. Reference Table (2) Reference No. 300 330 331 400 401 402 403 410 411 412 450 500 501 502 503 504 505 506 507 508 509 513 514 515 516 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 A-20 Description PSE Board Assembly Connector Cable Connector Cable Power Cable Power Cable AC Cable Power Cable Power Cable Assembly.
Appendix Table A-16. Part No. Reference Table (3) Reference No. 552 553 554 555 556 557 558 559 560 563 564 567 568 569 572 573 574 575 576 587 588 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 610 613 616 617 620 621 623 624 625 626 627 629 630 631 632 633 634 635 Rev.
EPSON 6W\OXV &2/25 1520 Table A-17. Part No. Reference Table (4) Reference No. 636 637 640 641 642 643 644 648 649 650 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 677 678 679 681 682 683 684 685 686 687 688 689 690 696 697 698 699 700 701 702 704 A-22 Description Right Slide Cover Left Slide Cover Paper Load Shaft Guide Edge Shaft ASF Release Shaft Platen Shaft Holder Platen Shaft holder Wire Saddle Bushing 6 Gear 16 Gear 11.4 Combination Gear 13.
Appendix Table A-18. Part No. Reference Table (5) Reference No. 706 707 709 715 717 718 719 720 721 722 723 728 729 730 731 732 733 734 735 737 738 739 Rev. A Description Screw (CBS 2X6) PE Sensor ;B HP Sensor Holding Plate Head Cable Guide Drive Spur Gear Bushing Oil Pad CR Felt Leaf Spring CD SW Harness CR Mount Shaft Top LD Guide Gear 16.5 Black Head Adjust Lever Color Head Adjust Lever Black Cartridge Cover Color Cartridge Cover Black Cartridge Separator Color Cartridge Separator Compression Spring 9.
EPSON 6W\OXV &2/25 1520 A.6 Dimension and Weight Dimension Weight :666 mm (W) X 554 mm (D) X 202 mm (H) 26.2 inch (W) X 21.8 inch (D) X 7.9 inch (H) :6.5 Kg 554 Figure A-12 illustrates the exterior dimension of the Stylus COLOR 1520. 666 695 202 Figure A-12. Dimension of the Stylus COLOR 1520 A-24 Rev.
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