Epson Stylus COLOR 1520 Service Manual

[Page 1] Epson 1520 - Stylus Color Inkjet Printer

EPSON COLOR INK JET PRINTER EPSON Stylus COLOR 1520 SERVICE MANUAL SEIKO EPSON CORPORATION 4007394 ...

[Page 2] Epson 1520 - Stylus Color Inkjet Printer

ii 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 ma...

[Page 3] Epson 1520 - Stylus Color Inkjet Printer

iii 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 sho...

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iv 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...

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REVISION SHEET Revision Issued Data Rev. A FEBRUARY 25 1997 Rev. B MARCH 3 1997 Rev. C November 28, 1997 Contents First issue Second issue for Chapter 1 Addition of “4.1.9 Uni-D Adjustment” ...

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vi TABLE OF CONTENTS CHAPTER 1. GENERAL DESCRIPTION CHAPTER 2. OPERATING PRINCIPLES CHAPTER 3. DISASSEMBLY AND ASSEMBLY CHAPTER 4. ADJUSTMENT CHAPTER 5. TROUBLESHOOTING CHAPTER 6. MAINTENANCE APPENDIX ...

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Chapter 1 Product Description 1.1 Features................................................................................................................1-1 1.2 Specification.........................................................................

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1.4.6.2 Adjustment patterns.............................................................................................1-29 1.4.7 Printer Initialization................................................................................................

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Product Description Rev. A 1-1 1.1 Features The EPSON Stylus COLOR 1520 is a business-use, high speed, and high-quality color ink jet printer. The main features of this printer are: High Speed Printing 400 cps for LQ mode 800 cps for draft mode High ...

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EPSON Stylus COLOR 1520 Rev. A 1- 2 Model Description C82305 /C82306 Serial interface card C82307 /C82308 32 KB serial interface card C82310 32 KB parallel interface card C82313 32 KB EEE-488 interface card C82315 Twinax interface card C82314 Coax i...

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Product Description Rev. A 1- 3 1.2 Specification This section provides detailed information on the EPSON Stylus COLOR 1520. 1.2.1 Printing Specifications Printing method :On demand Ink jet Nozzle configuration :Monochrome 128 nozzles (32 x 4 stagg...

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EPSON Stylus COLOR 1520 Rev. A 1- 4 1.2.2 Control codes ESCP/2 and expanded raster graphics code EPSON Remote command IBMX24E emulation 1.2.3 Character tables Legal and 14 international character sets Standard version: 27 character tables Italic...

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Product Description Rev. A 1- 5 Combinations of Character tables and typefaces (font) Table 1-14 shows the available combinations of character tables and Typefaces. Bitmap Fonts Scalable Fonts Scalable Fonts Character Tables EPSON Roman EPSON Sans S...

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EPSON Stylus COLOR 1520 Rev. A 1- 6 1.2.5 Paper Specification 1.2.5.1 Cut Sheet Size Width Length A4 210 mm (8.3”) 297 mm (11.7”) Letter 215.9 mm (8.5”) 279.4 mm (11.0”) B5 182 mm (7.2”) 257 mm (10.1”) Legal 21...

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Product Description Rev. A 1- 7 1.2.5.5 Labels (Cut Sheet) Size Width Length A4 210 mm (8.3”) 297 mm (11.7”) Letter 216 mm(8.5”) 279 mm (11.0”) Paper thickness :0.2 mm (0.0079”) including base sheet Quality :Page printer label Not...

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EPSON Stylus COLOR 1520 Rev. A 1- 8 1.2.6 Printable Area Cut Sheet PW LM (Left Margin) RM (Right Margin) TM BM (Paper Width) Set to right edge Set to left edge Set to right edge Set to left edge (Top Margin) (Bottom Margin) A4 297 mm (11.87”) 3 m...

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Product Description Rev. A 1- 9 Envelope LM (Left Margin) (minimum) RM (Right Margin) (minimum) TM (Top Margin) (minimum) BM (Bottom Margin) (minimum) 3 mm (0.12”) 3 mm (0.12”) 3 mm (0.12”) 14 mm (0.55”) LM RM TM BM Printable area Figure 1-4...

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EPSON Stylus COLOR 1520 Rev. A 1-1 0 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. Printable Area 1: Paper feed pitch is not...

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Product Description Rev. A 1-11 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 o...

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EPSON Stylus COLOR 1520 Rev. A 1-1 2 1.2.8 Ink Specification 1.2.8.1 Black ink cartridge Black Ink Cartridge Type Exclusive ink cartridge Color Black Print capacity 900 pages / A4 (ISO/IEC10561 Letter Pattern at 360 dpi) Ink life 2 years from indi...

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Product Description Rev. A 1-1 3 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) P...

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EPSON Stylus COLOR 1520 Rev. A 1-1 4 1.2.12 Reliability Total print volume :75,000 pages (A4/Lletter) Print head life :2,000 million dots /nozzle 1.2.13 Safety Approvals 120 V version Safety standards :UL1950 with D3 CSA22.2 No. 950 with D3 EMI :...

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Product Description Rev. A 1-1 5 1.3 Interfaces 1.3.1 Parallel Interface 1.3.1.1 Forward Channel Specifications Transmission mode :8 bit parallel , IEEE-P1284 compatibility mode Synchronization :/STROBE pulse Handshaking :BUSY and /ACKNLG signal S...

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EPSON Stylus COLOR 1520 Rev. A 1-1 6 Table 1-16 shows the connector pin assignment and signals for forward channel of the parallel interface. Parameter Minimum Maximum tsetup 500 ns - thold 500 ns - tstb 500 ns - tready 0 - tbusy - 500 ns tt-out* - ...

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Product Description Rev. A 1-1 7 1.3.1.2 Reverse Channel Specifications Transmission mode :IEEE-1284 nibble mode Adaptable connector :Same as for the forward channel Synchronization :Refer to the IEEE-1284 specification Handshaking :Refer to the IE...

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EPSON Stylus COLOR 1520 Rev. A 1-1 8 1.3.2 Mac Serial Interface 1.3.2.1 Serial Interface Specifications Standard :RS-423 compliance Synchronization :Synchronous Bit rate :Approximately 900 Kbps, 1.8 Mbps Word format :Start bit 1 bit :Data bit 8 b...

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Product Description Rev. A 1-1 9 1.3.3 Optional Interface The EPSON Stylus COLOR 1520 supports an optional Type-B interface (Level 2) with the following characteristics. Reply message When ESC/P2 is selected: Main type :MTP48p, PW136cl10cpi, PRG(W0...

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EPSON Stylus COLOR 1520 Rev. A 1-2 0 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...

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Product Description Rev. A 1-21 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 loc...

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EPSON Stylus COLOR 1520 Rev. A 1-2 2 Panel Functions :The function of each button is described below. Power Function :Turns the printer off or on * 1 . Available condition :Always Load/Eject Function :Loads and ejects the paper. Available condition ...

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Product Description Rev. A 1-2 3 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 be...

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EPSON Stylus COLOR 1520 Rev. B 1-2 4 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...

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Product Description Rev. A 1-2 5 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 dur...

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EPSON Stylus COLOR 1520 Rev. B 1-2 6 NO YES NO Start YES Turn the printer off to save the new settings into the EEPROM. 1.Move through the languages listed in "Usage of this mode" by pressing the "Alt " button. 2.Select th...

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Product Description Rev. A 1-2 7 1.4.5.2 Setting Menus The default setting menus are described in the table below. Menu Setting * 1 Print direction* 2 Auto / Bi-d / Uni-D Font Roman / Sans Serif / Courier / Prestige / Script/ Roman T / Sans Serif...

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EPSON Stylus COLOR 1520 Rev. A 1-2 8 Black and White Printing YMCK Printing (color) Auto Throughput and quality is better. Throughput is better. Color quality with special paper is worse. (Color correction depends on the print direction....

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Product Description Rev. A 1-2 9 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 M...

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EPSON Stylus COLOR 1520 Rev. A 1-3 0 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 t...

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Product Description Rev. A 1-31 1.5 Physical Specification Weight :6.5 Kg Dimension :666 mm (W) X 554 mm (D) X 202 mm (H) (26.2” X 21.8” X 7.9”) Refer to Appendix for details. ...

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EPSON Stylus COLOR 1520 Rev. A 1-3 2 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 :C211 MAIN Board Power supply board :C172 PSB/PSE Board Con...

[Page 41] Epson 1520 - Stylus Color Inkjet Printer

Product Description Rev. A 1-3 3 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 Transformer Diode Bridge Switching FET Figure 1-14. C211 PSB/PSE Board Com...

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Chapter 2 Operating Principles 2.1. Overview ..............................................................................................................2-1 2.2. Printer Mechanism Operating Principle ...............................................

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Operating Principles Rev. A 2-1 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 ...

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EPSON Stylus COLOR 1520 Rev. A 2- 2 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 ...

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Operating Principles Rev. A 2- 3 2.2.2.2 Printing Process Steps bellow describe how the ink is ejected from each nozzle with the on-demand ink jet system. Step 1 Normal state No print signal is applied to the PZT. In this state, the PZT does not dis...

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EPSON Stylus COLOR 1520 Rev. A 2- 4 Paper Type 180 dpi 360 dpi 720 X 360 dpi 720 dpi 1440X720 dpi Black printing for the raster data 360 dpi exclusive paper 1 dot printing Normal dot Micro Weave 720 dpi exclusive paper 1 dot printing Normal dot Mi...

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Operating Principles Rev. A 2- 5 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 ...

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EPSON Stylus COLOR 1520 Rev. A 2- 6 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 ...

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Operating Principles Rev. A 2- 7 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 torqu...

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EPSON Stylus COLOR 1520 Rev. A 2- 8 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 ...

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Operating Principles Rev. A 2- 9 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 pap...

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EPSON Stylus COLOR 1520 Rev. A 2-1 0 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 o...

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Operating Principles Rev. A 2-11 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. Whe...

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EPSON Stylus COLOR 1520 Rev. A 2-1 2 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 disenga...

[Page 55] Epson 1520 - Stylus Color Inkjet Printer

Operating Principles Rev. A 2-1 3 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 ...

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EPSON Stylus COLOR 1520 Rev. A 2-1 4 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...

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Operating Principles Rev. A 2-1 5 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 he...

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EPSON Stylus COLOR 1520 Rev. A 2-1 6 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 directl...

[Page 59] Epson 1520 - Stylus Color Inkjet Printer

Operating Principles Rev. A 2-1 7 Figure 2-18 illustrates the electrical circuit diagram. +5 VDC line over voltage protection circuit The output voltage level of the 5 V line is monitored by a Zener diode (ZD53). If the voltage level exceeds 9 V, th...

[Page 60] Epson 1520 - Stylus Color Inkjet Printer

EPSON Stylus COLOR 1520 Rev. A 2-1 8 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...

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Operating Principles Rev. A 2-1 9 CLK SD I/O Data Bus DRAM(4M) (IC10) Address Bus Timer Counter IC RTC-45436A (IC3) CPU C90A02CB (IC7) GA E05B33 (IC6) MROM (IC13) P-ROM(8M) (IC14) P-ROM(4M) (IC11) MROM (IC12) M From IC5 M +42VDC +5VDC ...

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EPSON Stylus COLOR 1520 Rev. A 2-2 0 2.3.2.1 Reset Circuits The C211 MAIN board contains two reset circuits: logic line (+5 V) and power (+42 V) line. Reset IC M51955BFP (IC4) monitors the +42 V line. It outputs /NMI signal to the CPU and the gate...

[Page 63] Epson 1520 - Stylus Color Inkjet Printer

Operating Principles Rev. A 2-21 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 wi...

[Page 64] Epson 1520 - Stylus Color Inkjet Printer

EPSON Stylus COLOR 1520 Rev. A 2-2 2 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 E05B...

[Page 65] Epson 1520 - Stylus Color Inkjet Printer

Operating Principles Rev. A 2-2 3 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...

[Page 66] Epson 1520 - Stylus Color Inkjet Printer

EPSON Stylus COLOR 1520 Rev. A 2-2 4 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 a...

[Page 67] Epson 1520 - Stylus Color Inkjet Printer

Operating Principles Rev. A 2-2 5 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 o...

[Page 68] Epson 1520 - Stylus Color Inkjet Printer

EPSON Stylus COLOR 1520 Rev. A 2-2 6 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. ...

[Page 69] Epson 1520 - Stylus Color Inkjet Printer

Operating Principles Rev. A 2-2 7 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. The ink system consists of following operations: Power On Initial...

[Page 70] Epson 1520 - Stylus Color Inkjet Printer

EPSON Stylus COLOR 1520 Rev. A 2-2 8 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...

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Chapter 3 Disassembly and Assembly 3.1 Overview ...............................................................................................................3-1 3.1.1 Precautions for Disassembling the Printer.......................................

[Page 72] Epson 1520 - Stylus Color Inkjet Printer

Disassembly and Assembly Rev. A 3-1 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 disas...

[Page 73] Epson 1520 - Stylus Color Inkjet Printer

EPSON Stylus COLOR 1520 Rev. A 3- 2 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 removin...

[Page 74] Epson 1520 - Stylus Color Inkjet Printer

Disassembly and Assembly Rev. A 3- 3 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. See the preca...

[Page 75] Epson 1520 - Stylus Color Inkjet Printer

EPSON Stylus COLOR 1520 Rev. A 3- 4 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 pr...

[Page 76] Epson 1520 - Stylus Color Inkjet Printer

Disassembly and Assembly Rev. A 3- 5 4. Remove 3 screws (CBB, 3X12) and 2 screws (CBB, 4X2) securing the upper housing to the lower housing. 5. Insert the tweezers into the cutouts at the bottom of the upper housing to release the hooks fixing the...

[Page 77] Epson 1520 - Stylus Color Inkjet Printer

EPSON Stylus COLOR 1520 Rev. A 3- 6 3.2.2 ROM Replacement 1. Remove 1 screw (CBP, 3X8) securing the ROM cover to the lower housing, and remove the ROM cover. 2. Remove the ROM. Never replace the ROM before unplugging the power cable. CAUTION ...

[Page 78] Epson 1520 - Stylus Color Inkjet Printer

Disassembly and Assembly Rev. A 3- 7 3.2.3 Print Head Removal 3.2.3.1 Black Head Removal 1. Remove the upper housing. (Refer to Section 3.2.1.) 2. Remove the ink cartridge if it is installed. 3. Remove the FFC holders from the front left corner...

[Page 79] Epson 1520 - Stylus Color Inkjet Printer

EPSON Stylus COLOR 1520 Rev. A 3- 8 3.2.3.2 Color Head Removal 1. Remove the upper housing. (Refer to Section 3.2.1.) 2. Remove the ink cartridge if it is installed. 3. Remove the FFC holders from the front left corner of the CR unit. Then rel...

[Page 80] Epson 1520 - Stylus Color Inkjet Printer

Disassembly and Assembly Rev. A 3- 9 3.2.4 Home Position (HP) Sensor Removal 1. Remove the upper housing. (Refer to Section 3.2.1.) 2. Disconnect the connector cable from the HP sensor connector. 3. Release the hooks fixing the HP sensor to the ...

[Page 81] Epson 1520 - Stylus Color Inkjet Printer

EPSON Stylus COLOR 1520 Rev. A 3-1 0 3.2.5 Cover Open Sensor Removal 1. Remove the upper housing. (Refer to Section 3.2.1.) 2. Disconnect the cover open sensor connector cable from the cover open sensor connector. 3. Release the hooks fixing t...

[Page 82] Epson 1520 - Stylus Color Inkjet Printer

Disassembly and Assembly Rev. A 3-11 3.2.6 Printer Mechanism Unit Removal 1. Remove the upper housing. (Refer to Section 3.2.1.) 2. Disconnect the connector cables from the connectors CN3, CN4, CN8, CN9, CN10, CN11, CN12, CN13, CN14, and CN15 on t...

[Page 83] Epson 1520 - Stylus Color Inkjet Printer

EPSON Stylus COLOR 1520 Rev. A 3-1 2 3.2.7 PSB/PSE Board Assembly Removal 1. Remove the upper housing. (Refer to Section 3.2.1.) 2. Remove the printer mechanism unit. (Refer to Section 3.2.6.) 3. Disconnect the power cable connector from CN1, ...

[Page 84] Epson 1520 - Stylus Color Inkjet Printer

Disassembly and Assembly Rev. A 3-1 3 3.2.8 C211 MAIN Board Assembly Removal 1. Remove the upper housing. (Refer to Section 3.2.1.) 2. Remove the printer mechanism unit. (Refer to Section 3.2.6.) 3. Disconnect the connector cable for the PSB/PSE...

[Page 85] Epson 1520 - Stylus Color Inkjet Printer

EPSON Stylus COLOR 1520 Rev. A 3-1 4 CN3 CN4 Screw (CBS 3x12) Screw (CBP 3X12) Screw (CBS 3X6) CN14 CN12 CN13 CN5 CN15 Connector Cable for ther Control Panel Screw (CBP 3X12) Screw (CBP 3X12) Screw (CBS 3X6) Screw (CP 3X6) Shield Cover for the Typ...

[Page 86] Epson 1520 - Stylus Color Inkjet Printer

Disassembly and Assembly Rev. A 3-1 5 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 m...

[Page 87] Epson 1520 - Stylus Color Inkjet Printer

EPSON Stylus COLOR 1520 Rev. A 3-1 6 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. Remove...

[Page 88] Epson 1520 - Stylus Color Inkjet Printer

Disassembly and Assembly Rev. A 3-1 7 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...

[Page 89] Epson 1520 - Stylus Color Inkjet Printer

EPSON Stylus COLOR 1520 Rev. A 3-1 8 3.2.10.2 PF (Paper Feed) Motor Assembly Removal 1. Remove the printer mechanism unit. (Refer to 3.2.6.) 2. Remove the connector cable for the PF motor assembly from the connector cable clump on the printer m...

[Page 90] Epson 1520 - Stylus Color Inkjet Printer

Disassembly and Assembly Rev. A 3-1 9 3.2.10.3 DE (Disengage) Sensor Removal 1. Remove the printer mechanism unit. (Refer to 3.2.6.) 2. Using the tweezers, release the hooks fixing the DE sensor to the cam select assembly, then remove the DE sens...

[Page 91] Epson 1520 - Stylus Color Inkjet Printer

EPSON Stylus COLOR 1520 Rev. A 3-2 0 3.2.10.4 Front/Rear PE (Paper End) Sensor Removal 1. Remove the printer mechanism unit. (Refer to 3.2.6.) 2. Using the tweezers, release the tubs fixing the Front/Rear PE sensors to the rear paper guide at t...

[Page 92] Epson 1520 - Stylus Color Inkjet Printer

Disassembly and Assembly Rev. A 3-21 3.2.10.5 REL (Release) Sensor Removal 1. Remove the printer mechanism unit. (Refer to 3.2.6.() 2. Using the tweezers, release the tabs fxing the REL sensor to the left frame assembly. Then remove the REL sensor...

[Page 93] Epson 1520 - Stylus Color Inkjet Printer

EPSON Stylus COLOR 1520 Rev. A 3-2 2 3.2.10.6 Edge Guide Unit Removal 1. Remove the printer mechanism unit. (Refer to Section 3.2.6.) 2. Release the joints for the edge guide unit and the right and left paper load roller slide covers. 3. Remov...

[Page 94] Epson 1520 - Stylus Color Inkjet Printer

Disassembly and Assembly Rev. A 3-2 3 3.2.10.7 Paper Eject Frame Removal 1. Remove the printer mechanism unit. (Refer to Section 3.2.6.) 2. Disconnect the connector cables for HP sensor and cover open sensor from the connectors. 3. Remove 3 scre...

[Page 95] Epson 1520 - Stylus Color Inkjet Printer

EPSON Stylus COLOR 1520 Rev. A 3-2 4 3.2.10.8 Pump Unit Removal 1. Remove the printer mechanism unit. (Refer to Section 3.2.6.) 2. Remove the paper eject frame. (Refer to Section 3.2.10.7.) 3. Remove 2 screws (CBS, 3X6 and CBP, 3X8) securing t...

[Page 96] Epson 1520 - Stylus Color Inkjet Printer

Disassembly and Assembly Rev. A 3-2 5 3.2.10.9 Carriage (CR) Unit Removal 1. Remove the printer mechanism unit. (Refer to Section 3.2.6.) 2. Remove the extension spring to release the timing belt. (Refer to the step 2 in Section 3.2.10.1.) 3. Di...

[Page 97] Epson 1520 - Stylus Color Inkjet Printer

EPSON Stylus COLOR 1520 Rev. A 3-2 6 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...

[Page 98] Epson 1520 - Stylus Color Inkjet Printer

Disassembly and Assembly Rev. A 3-2 7 3.2.10.10 Base Frame Assembly Removal 1. Remove the printer mechanism unit. (Refer to Section 3.2.6.) 2. Remove the paper eject frame. (Refer to Section 3.2.10.7.) 3. Remove the CR unit. (Refer to Section 3....

[Page 99] Epson 1520 - Stylus Color Inkjet Printer

EPSON Stylus COLOR 1520 Rev. A 3-2 8 3.2.10.11 Paper Load Roller Unit Removal 1. Remove the printer mechanism unit. (Refer to Section 3.2.6.) 2. Remove the paper eject frame. (Refer to Section 3.2.10.7.) 3. Remove the CR unit. (Refer to Sectio...

[Page 100] Epson 1520 - Stylus Color Inkjet Printer

Disassembly and Assembly Rev. A 3-2 9 ASF Tarnsmission Gear Set Gear (PF Roller) Bushing Edge Guide PF Roller Bushing E-ring Paper Load Shaft Figure 3-26. Paper Load Roller Removal ...