Epson Stylus Color 1520 Service Manual
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Epson Stylus Color 1520 Service Manual

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Service Manual
TM-STYCLR800
Epson America, Inc.

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Summary of Contents for Epson Stylus Color 1520

  • Page 1 Service Manual TM-STYCLR800 Epson America, Inc.
  • Page 2 Service Manual Revision Date Release July 1997 EPSON Stylus COLOR 1520 Service Manual...
  • Page 3 Epson America, Inc., shall not be liable against any damages or problems arising from the use of any options or any consumable products other than those designated as Original EPSON Products or EPSON-Approved Products by Seiko Epson Corporation.
  • Page 4 TRADEMARKS EPSON® and ESC/P® are registered trademarks and ESC/P 2™ and EPSON Stylus are trademarks of Seiko Epson Corporation. General Notice: Other product names used herein are for identification purposes only and may be trademarks of their respective companies. EPSON disclaims any and all rights in those marks.
  • Page 5 2. Make certain that the source voltage is the same as the rated voltage listed on the serial number/rating plate. If the EPSON product has a primary AC rating different from the available power source, do not connect it to the power source.

  • Page 6: Table Of Contents

    Chapter 1 Product Description 1.1 Feature………......................1-1 1.2 Specifications .......................1-4 1.2.1 Printing Specifications......................1-4 1.2.2 Control codes.......................... 1-5 1.2.3 Character tables........................1-5 1.2.4 Paper Feeding ......................... 1-7 1.2.5 Paper Specifications ......................1-8 1.2.5.1 Cut Sheet........................1-8 1.2.5.2 Transparency......................1-8 1.2.5.3 Envelope........................1-8 1.2.5.4 Index Card .........................
  • Page 7 1.4.4 Cover Open Sensor ......................1-27 1.4.5 Default Setting ......................... 1-27 1.4.5.1 Setting Method ....................1-27 1.4.5.2 Setting Menus..................... 1-29 1.4.6 Printer Adjustment Mode ....................1-31 1.4.6.1 Adjustment Method..................... 1-32 1.4.6.2 Adjustment patterns.................... 1-32 1.4.7 Printer Initialization ......................1-33 1.4.8 Self-test Printing Mode ....................1-33 1.4.9 Hexadecimal Dump Function..................

  • Page 8: Feature

    Product Description 1.1 Features The EPSON Stylus COLOR 1520 is a fast, high-quality color ink jet printer designed for business users. The main features of this printer are: High Speed Printing ‰ 400 cps in LQ mode ‰ 800 cps in draft mode High-quality color printing for graphics ‰...
  • Page 9 EPSON Stylus COLOR 1520 Figure 1-1. Exterior View of the EPSON Stylus COLOR 1520...
  • Page 10 EPSON photo quality ink jet paper (Super A3/B) S041054 EPSON photo quality ink jet card (A6) S041121 EPSON photo quality ink jet card (5 X 8 inch) S041122 EPSON photo quality ink jet card (8 X10 inch) S041071 EPSON photo quality glossy film (A4)

  • Page 11: Specifications

    EPSON Stylus COLOR 1520 1.2 Specifications 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 staggered) Color 64 nozzles each (magenta, cyan, yellow)

  • Page 12: Control Codes

    5. Print 180 X 720 raster image. 6. Paper feed 31/720 inch. Repeat the steps from 2 to 6. 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 ‰...
  • Page 13 10.5 pt., 8 pt. − 32 pt. (every 2 pt.) EPSON Script Note) Each typeface has 4 variations: Normal, Bold, Italic, and Bold Italic An example of variations for Epson Roman is as follows: Epson Roman normal Epsom Roman bold Epson Roman italic...

  • Page 14: Paper Feeding

    Bitmap Fonts Scalable Fonts Scalable Fonts EPSON Roman EPSON Roman EPSON Roman T EPSON Sans Serif EPSON Sans Serif EPSON Sans Serif H Character Tables EPSON Courier EPSON Prestige EPSON Script Italic PC 860 (Portuguese)) PC 861 (Icelandic) PC 863 (Canadian-French)

  • Page 15: Paper Specifications

    EPSON Stylus COLOR 1520 1.2.5 Paper Specifications 1.2.5.1 Cut Sheet Table 1-5. Cut Sheet Size Size Width Length 8.3 in (210 mm) 11.7 in (297 mm) Letter 8.5 in (215.9 mm) 11.0 in (279.4 mm) 7.2 in (182 mm) 10.1 in (257 mm) Legal 8.5 in (215.4 mm)

  • Page 16: Index Card

    Product Description 1.2.5.4 Index Card Table 1-8. Index Card Size Size Width Length A6 index card 4.1 in ( 105 mm) 5.82 in (148 mm) Card Thickness 0.0091 in (0.23 mm) 1.2.5.5 Labels (Cut Sheet) Table 1-9. Label Size Size Width Length 8.3 in (210 mm)

  • Page 17: Printable Area

    EPSON Stylus COLOR 1520 1.2.6 Printable Area Cut Sheets Printable Area Figure 1-3. Printable Area for Cut Sheets Table 1-10. Minimum Margins for Different Cut Sheet Sizes LM (Left Margin) RM (Right Margin) (Paper Set to right Set to left...
  • Page 18 Product Description Envelopes Printable Area Figure 1-4. Printable Area for Envelopes Table 1-11. Minimum Margins for Envelopes LM (Left Margin) RM (Right Margin) TM (Top Margin) (minimum) (minimum) (minimum) (Bottom Margin) (minimum) 0.12 in 0.12 in 0.12 in 0.54 in (3 mm) (3 mm) (3 mm)
  • Page 19 EPSON Stylus COLOR 1520 Continuous Paper Note) 1. Printable area of labels (continuous) is the same as for continuous paper. 2. Base sheet of labels (continuous) is not within the printable area. More than More than 13 mm (0.51") *1 13 mm (0.51") *1...

  • Page 20: Adjustment Lever

    Product Description 1.2.7 Adjustment Lever The adjustment lever, located on the upper left side of the printer, is used to adjust the gap between the paper and platen. The adjustment lever must be set to the proper position for the paper type to prevent the paper from smudging.

  • Page 21: Ink Specifications

    EPSON Stylus COLOR 1520 1.2.8 Ink Specifications 1.2.8.1 Black ink cartridge Table 1-13. Black Ink Cartridge Specifications Black Ink Cartridge Type Exclusive ink cartridge Color Black Print capacity 900 pages / A4 (ISO/IEC10561 Letter Pattern at 360 dpi) Ink life...

  • Page 22: Electric Specifications

    Product Description 1.2.10 Electric Specifications 120 V version ‰ Rated voltage 120 VAC ‰ Input voltage range 103.5 to 132 VAC ‰ Rated frequency renege 50 to 60 Hz ‰ Input frequency range 49.5 to 60.5 Hz ‰ Rated current 0.7 A (maximum) ‰...

  • Page 23: Reliability

    EPSON Stylus COLOR 1520 Humidity (%) Guaranteed range Operating environment Temperature ( (50 H) (80 H) (95 H) Figure 1-7. Environmental Conditions 1.2.12 Reliability Total print volume 75,000 pages (Letter/ A4) Print head life 2,000 million dots /nozzle 1.2.13 Safety Approvals 120 V version ‰...

  • Page 24: Interfaces

    Product Description 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 Signal level TTL compatible level (IEEE-P1284 Level 1 device) Table 1-15. Signal level of TTL Compatible (IEEE-1284 level 1 device) Parameter Minimum Maximum...
  • Page 25 EPSON Stylus COLOR 1520 ‰ Paper-out error ‰ Paper-jam error ‰ Ink-out error The PE signal is high level during paper-out error. Table 1-16 shows the connector pin assignment and signals for forward channel of the parallel interface. Table 1-16. Data Transmission Timing...

  • Page 26: Reverse Channel Specifications

    Request Device ID; Return Data Using Nibble Mode Rev Channel Transfer. Device ID The printer sends following device ID string when it is requested. [00H] [xxH] EPSON; ESCP2E, PRPXL; Stylus COLOR 1520; PRINTER Note) [00H] denotes a hexadecimal values of zero. 1-19...

  • Page 27: Mac Serial Interface

    EPSON Stylus COLOR 1520 1.3.2 Mac Serial Interface 1.3.2.1 Serial Interface Specifications Standard RS-423 compliant ‰ Synchronization Synchronous ‰ Bit Rate Approximately 900 Kbps, 1.8 Mbps ‰ Word Format Start bit 1 bit Data bit 8 bits Parity bit No parity bit Stop bit 1 bit ‰...

  • Page 28: Optional Interface

    Product Description 1.3.3 Optional Interface The EPSON Stylus COLOR 1520 supports an optional Type-B interface (Level 2) with the following characteristics. ‰ Reply messages ‰ When ESC/P2 is selected: Main type MTP48p, PW136cl10cpi, PRG(W0xxxx)rev, AP800ma, SPD0fast Product name Stylus COLOR 1520...

  • Page 29: Preventing Data Transfer Time-Out From Hosts

    Finally, the printer is BUSY continuously when the input buffer is full. 1.3.5 Interface Selection The EPSON Stylus COLOR 1520 has three types of interfaces available: parallel, serial, and optional interfaces. Each interface can be selected manually or automatically. Both modes are selected thorough the default setting mode.

  • Page 30: Operations

    Product Description 1.4 Operations This section describes the function of each button on the control panel and LED printer status indicators. 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.
  • Page 31 EPSON Stylus COLOR 1520 Panel Functions The function of each button is described below. ‰ Power Function Turns the printer off or on * Available at Always ‰ Load/Eject Function Loads and ejects the paper. Available at Pause/Stand-by ‰ LF/FF Function Feeds one line or page.

  • Page 32: Panel Functions At Power On

    Product Description 1.4.2 Panel Functions at Power On This printer enters various functions by turning on the printer while holding down a button (or buttons). Each combination and corresponding function is described in the table below. Table 1-23. Panel Functions at Powered On Button Pressed * Function (while turning on the printer)

  • Page 33: Led Indicators

    EPSON Stylus COLOR 1520 1.4.3 LED Indicators Several printer conditions are indicated by the LEDs on the control panel. When any of the errors listed below occurs, the printer indicates an error condition, the /ERROR signal is LOW, and BUSY is HIGH, stopping data transfer.

  • Page 34: Cover Open Sensor

    Product Description 1.4.4 Cover Open Sensor The sensor performs following: If the printer cover opens during printing: ‰ The CR returns to the home position slowly after printing the current pass. The cover open LED lights up and the printer goes into the stand-by state. ‰...
  • Page 35 EPSON Stylus COLOR 1520 Start Press the Micro Adjust ↓ button and turn the printer on. The printer prints "Usage of this mode" and firmware version number. 1.Move through the languages listed in "Usage of this mode" by pressing the Alt button.

  • Page 36: Setting Menus

    Product Description 1.4.5.2 Setting Menus The default setting menus are described in the table below. Table 1-25. Default Setting Menu Menu Setting * Print direction* Auto / Bi-d / Uni-D Font Roman / Sans Serif / Courier / Prestige / Script/ Roman T / Sans Serif H / Draft Pitch 10 cpi / 12 cpi / 15 cpi / 17.1 cpi / 20 cpi / Proportional...
  • Page 37 EPSON Stylus COLOR 1520 Table 1-26. Print Direction Mode Characteristics 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.) Bi-D Throughput is the best.

  • Page 38: Printer Adjustment Mode

    → No operation Over the paper Eject Eject length 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 . 1-31...

  • Page 39: Adjustment Method

    EPSON Stylus COLOR 1520 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.

  • Page 40: Printer Initialization

    Product Description 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: ‰...

  • Page 41: Physical Specifications

    (666 mm X 554 mm X 202 mm) Refer to Appendix for details. 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...

  • Page 42: C172 Psb/Pse Board

    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 Transformer Diode Bridge Switching FET Figure 1-14. C211 PSB/PSE Board Component Layout 1-35...
  • Page 43 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......................2-2 2.2.2.1. Printhead Structure ....................2-2 2.2.2.2. Printing Process....................2-3 2.2.2.3. Printing Methods ....................2-3 2.2.3. Carriage (CR) Mechanism....................2-5 2.2.4.

  • Page 44: Overview

    Operating Principles 2.1 Overview This chapter describes the operating principles of the printer mechanism and electrical circuit. 2.2 Printer Mechanism Operating Principles 2.2.1.1 M-4I60 Printer Mechanism This printer is composed mainly of the printhead unit, paper feeding mechanism, CR mechanism and the pump mechanism.

  • Page 45: Printing Mechanism

    2.2.2 Printing Mechanism The printer uses an on-demand ink jet system to print, as used by other EPSON ink jet printers. This printer, however, has a new printhead, which is designed to produce high quality output at a higher speed. The printing mechanism has 2 parts: ink cartridge and printhead.

  • Page 46: Printing Process

    EPSON Micro Dot Printing Both black and color printouts can be made in normal dot print mode and EPSON micro dot print mode. In the normal dot print mode, the printer uses less ink to create sharper dots. This expands the gradation range for a more delicate tone.
  • Page 47 EPSON Stylus COLOR 1520 Table 2-1. Special Printing Options Paper Type 180 dpi 360 dpi 720 X 360 720 dpi 1440X720 Black Printing Raster Data     360 dpi 1 Dot Printing Exclusive Normal Dot Paper Microweave ...

  • Page 48: Carriage (Cr) Mechanism

    Operating Principles 2.2.3 Carriage (CR) Mechanism The CR mechanism is composed of the CR unit, CR motor, timing belt, CR guide shaft, paper eject frame, and HP sensor (Home Position sensor). Torque from the CR motor is transmitted via the timing belt to the CR unit right and left along the paper eject frame and CR guide shaft, depending on the way the CR motor rotates.

  • Page 49: Paper Feed Mechanism

    EPSON Stylus COLOR 1520 2.2.4 Paper Feed Mechanism The paper feed mechanism of this printer consists of the integrated ASF (Auto Sheet Feeder), tractor, PF (Paper Feed) motor, front/rear PE (Paper End) sensors, PF roller, paper guide mechanism, paper eject unit, and PF motor drive disengage mechanism.

  • Page 50: Asf (Auto Sheet Feeder) Mechanism

    Operating Principles PF Motor Tractor Disengage Gear PF Motor Pinion Gear Disengage Gear To the tractor mechanism. To the ASF mechanism. Transmission Gear PF Drive Roller Paper Eject Roller Shaft Pump Mechanism Paper Eject Roller Shaft Paper Eject Roller Unit Figure 2-5.

  • Page 51: Tractor Mechanism

    EPSON Stylus COLOR 1520 2.2.4.2 Tractor Mechanism When the release lever is moved, the PF motor sends torque to the gears at the left end of the PF roller that is transmitted to the tractor gears via the disengage mechanism. When the release lever is set to the tractor side, the release sensor detects the position and torque from the ASF mechanism is disengaged.

  • Page 52: Ink System

    Operating Principles PG Adjust Lever Parallelism Adjustment Bushing Printhead Platen Surface • { Platen Gap Eccentricity CR Guide Shafts Figure 2-8. Platen Gap Adjustment Mechanism 2.2.6 Ink System The ink system is composed of the following mechanisms: Ink cartridge Pump mechanism Capping mechanism Waste ink drain pads Wiping mechanism...

  • Page 53: Pump Mechanism

    EPSON Stylus COLOR 1520 The figure below shows the structure of the ink system. Black Ink Color Ink Cartridge Cleaner Head for Cartridge Black and Color Ink PF Motor Clutch Unit Combination Gear Disengage Gear Air Valves Pump Unit Pump 1...
  • Page 54 Operating Principles Switch Lever PF Motor Drive Disengage Mechanism (CR) Release Cam Set Lever Release Lever ASF Transmission Gear set Lever PF Motor Drive Disengage Mechanism Switch Lever (CR) Release Cam Disengage Gear The direction in which the CR moves. Torsion Spring Figure 2-10.
  • Page 55 EPSON Stylus COLOR 1520 When the CR unit shifts from the right end to the left end, the lever in the CR unit pushes the cam release. Then the disengage gear switches torque from the pump mechanism to the paper feed mechanism.
  • Page 56 Operating Principles The pump mechanism absorbs ink inside the printhead and drains ink to the waste ink drain pads via the cap. Since the printer has black and color printheads, the pump mechanism functions for the both by using the alternating directions of the PF motor. When the PF motor rotates forward (the direction for feeding paper), the pump is used for the black printhead.

  • Page 57: Capping Mechanism

    EPSON Stylus COLOR 1520 2.2.7 Capping Mechanism The capping mechanism covers the printheads with the cap holders to prevent ink around the nozzles from increasing in viscosity while the printer is in stand-by or power is off. The cap is individually equipped for the black and color printheads.

  • Page 58: Wiping/Cr Lock Mechanism

    Operating Principles 2.2.7.1 Wiping/CR Lock Mechanism The wiping mechanism removes ink and dust that collect around the nozzles during the cleaning sequence. When the PF motor rotates backward, torque sent via the head cleaner (wiper) drive gear and the clutch moves the head cleaner to the path of the printhead.

  • Page 59: C172 Psb/Pse Electrical Circuit Board

    EPSON Stylus COLOR 1520 2.3 Circuit Operating Principles This printer consists of the following circuit boards: C211 MAIN board C178 PSB/PSE board C211 Panel board Printhead driver circuits (nozzle selection circuit) are directly attached to the black and color printheads.
  • Page 60 Operating Principles Figure 2-18 illustrates the electrical circuit diagram. Primary Circuit Secondary Circuit Half Wave Full Wave Switching +42 V Smoothing Rectifier Rectifier Circuit Circuit Circuit Circuit (Q1) Chopping +5 V Regulator (IC51) Filter Photo-coupler +42 V Line Detector Circuit (ZD51, 81 to 86) Fuse +42 V Line Over Current Protection Circuit...

  • Page 61: C211 Main Control Board

    EPSON Stylus COLOR 1520 low, the transistors assume there is a short circuit and feed information to the primary circuit to stop the switching FET operation. 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) Runs at 19.66 MHz.
  • Page 62 Operating Principles P-ROM(8M) P-ROM(4M) DRAM(4M) DRAM(4M) MROM MROM (IC14) (IC11) (IC9) (IC10) (IC12) (IC13) +42VDC Data Bus +5VDC Type-B Address Bus CR Motor Control Printhead E05B34 Control Panel Temperature C90A02CB (IC5) (IC7) PE, Cover Open, REL Sensors +42V Power Line HP, DE Sensors Reset IC M51955BFP...

  • Page 63: Reset Circuits

    EPSON Stylus COLOR 1520 2.3.2.1 Reset Circuits The C211 main board contains two reset circuits: the logic line (+5 V) and the power (+42 V) line. Reset IC M51955BFP (IC4) monitors the +42 V line. When the voltage level drops below 33.2 V, It outputs an /NMI signal to the CPU and the gate array to cut off the power to the motors.
  • Page 64 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.

  • Page 65: Cr Motor Driver Circuits

    EPSON Stylus COLOR 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.

  • Page 66: Pf Motor Driver Circuit

    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.

  • Page 67: Printhead Driver Circuit

    EPSON Stylus COLOR 1520 2.3.2.5 Printhead Driver Circuit This printer has 2 separate printhead driver circuits, one for the black printhead and one for the color printhead. Each circuit has the common voltage driver circuit attached to the main board and the nozzle selection circuit attached to the printhead driver circuit board.
  • Page 68 Operating Principles Common driver circuit for the black printhead Gate array E05B33 (IC6) sends serial data to the head nozzle selection circuit on the head to select nozzles to activate. The data is transferred to the common driver on the control board to drive piezos that correspond to each nozzle.
  • Page 69 EPSON Stylus COLOR 1520 Color printhead nozzle selector circuit The operating principles for the color printhead and black printhead are the same except that color printing is performed with data for 3 different colors: yellow, cyan, and magenta. The operating principles...

  • Page 70: Ink System Management

    Operating Principles 2.4 Ink System Management This section explains how the ink system is controlled to protect the printheads and ensure the output is high quality. The ink system consists of following operations: Power On Initialization Ink Cartridge Replacement Cleaning Print Start Flushing Waiting...

  • Page 71: Counters

    EPSON Stylus COLOR 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, a maintenance error occurs and the current printing job stops consequently.
  • Page 72 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.................3-3 3.2.1 Upper Housing Removal......................3-4 3.2.2 ROM Replacement........................3-6 3.2.3 Print Head Removal........................ 3-6 3.2.3.1 Black Head Removal....................3-6 3.2.3.2 Color Head Removal ....................

  • Page 73: Overview

    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 disassembly procedure. Therefore, no assembly procedures are included in this section. Precautions for any disassembly or assembly procedures are described under the heading “WORK POINT."...

  • Page 74: Tools

    &2/25 EPSON Stylus 1520 CAUTION Never remove the ink cartridge from the carriage unless the manual specifies to do so. When transporting the printer after installing the ink cartridge, be sure to pack the printer without removing the ink cartridge.

  • Page 75: Disassembly And Assembly

    Disassembly and Assembly 3.2 Disassembly and Assembly This section describes disassembly and assembly procedures for the printer assemblies and parts. CAUTION See the precautions in Section 3.1.1 prior to disassembly and assembly. START START Upper Housing Replacement Removal Printer Mechanism Printhead HP Sensor Unit Removal...

  • Page 76: Upper Housing Removal

    &2/25 EPSON Stylus 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 tweezers. Then remove it from the printer mechanism unit by lifting up the rear edge of the tractor unit.
  • Page 77 Disassembly and Assembly 4. Remove 3 screws (CBB, 3X12) and 2 screws (CBB, 4X20) 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 upper housing to the lower housing.

  • Page 78: Rom Replacement

    &2/25 EPSON Stylus 1520 3.2.2 ROM Replacement Remove 1 screw (CBP, 3X8) securing the ROM cover to the lower housing, and remove the ROM cover. Remove the ROM. CAUTION Never replace the ROM before unplugging the power cable. 3.2.3 Print Head Removal 3.2.3.1 Black Printhead Removal...
  • Page 79 Disassembly and Assembly Black Cartridge Lever Color Cartridge Lever Screw Screw Black Printhead Color Printhead Compression Springs FFC for the Color Printhead FFC for the Black Printhead Fitting Carriage Unit Figure 3-5. Black/Color Printhead Removal...
  • Page 80 &2/25 EPSON Stylus 1520 3.2.3.2 Color Printhead Removal 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.

  • Page 81: Home Position (Hp) Sensor Removal

    Disassembly and Assembly 3.2.4 Home Position (HP) Sensor Removal Remove the upper housing. (Refer to Section 3.2.1.) Disconnect the connector cable from the HP sensor connector. Release the hooks mounting the HP sensor to the paper eject frame using tweezers, then remove the HP sensor.

  • Page 82: Cover Open Sensor Removal

    &2/25 EPSON Stylus 1520 3.2.5 Cover Open Sensor Removal Remove the upper housing. (Refer to Section 3.2.1.) Disconnect the cover open sensor connector cable from the connector. Release the hooks mounting the cover open sensor to the paper eject frame using the tweezers. Then remove the cover open sensor.
  • Page 83 Disassembly and Assembly Screws (CB 4X14) Printer Mechanism Unit Screws (CB 4X14) Lower Housing Figure 3-8. Printer Mechanism Removal 3-11...

  • Page 84: Psb/Pse Board Assembly Removal

    &2/25 EPSON Stylus 1520 3.2.7 PSB/PSE Board Assembly Removal 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 CN2.

  • Page 85: C211 Main Board Assembly Removal

    Disassembly and Assembly 3.2.8 C211 Main Board Assembly Removal 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 8 screws (CBP, 3X12) and 2 screws (CBS, M3X6) securing the C211 main board assembly to the lower housing.
  • Page 86 &2/25 EPSON Stylus 1520 Screws (CBS 3x12) 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) CP 3X6 Screw (CBP 3X12) CN10 CN13...

  • Page 87: Waste Ink Drain Pad Removal

    Disassembly and Assembly 3.2.9 Waste Ink Drain Pad Removal Waste Ink Drain Pads are replaced under the following conditions: „ The value for the protect counter A has reached the specified limit (65,000) and the printer indicates a maintenance request error. „...

  • Page 88: Printer Mechanism Unit Disassembly

    &2/25 EPSON Stylus 1520 3.2.10 Printer Mechanism Unit Disassembly This section describes how to disassemble and reassemble the parts in the M-4160 printer mechanism. 3.2.10.1 Carriage (CR) Motor Assembly Removal Remove the printer mechanism unit. (Refer to 3.2.6.) Release the timing belt by removing the extension spring.

  • Page 89: Pf (Paper Feed) Motor Assembly Removal

    Disassembly and Assembly CR Motor Assembly (A) : 1 mm or less Adhesive Indented Side Figure 3-13. Mounting the CR Motor Fan 3.2.10.2 PF (Paper Feed) Motor Assembly Removal Remove the printer mechanism unit. (Refer to 3.2.6.) Remove the connector cable for the PF motor assembly from the connector cable clamp on the printer mechanism unit.

  • Page 90: Disengage) Sensor Removal

    &2/25 EPSON Stylus 1520 3.2.10.3 DE (Disengage) Sensor Removal Remove the printer mechanism unit. (Refer to 3.2.6.) Using the tweezers, release the hooks mounting the DE sensor to the cam select assembly, then remove the DE sensor. Remove the connector cable from the connector for the DE sensor.

  • Page 91: Front/Rear Pe (Paper End) Sensor Removal

    Disassembly and Assembly 3.2.10.4 Front/Rear PE (Paper End) Sensor Removal Remove the printer mechanism unit. (Refer to 3.2.6.) Using the tweezers, release the tabs mounting 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.

  • Page 92: Rel (Release) Sensor Removal

    &2/25 EPSON Stylus 1520 3.2.10.5 REL (Release) Sensor Removal Remove the printer mechanism unit. (Refer to 3.2.6.() Using the tweezers, release the tabs mounting the REL sensor to the left frame assembly. Then remove the REL sensor. Tweezers Tab Holding the Release Sensor...

  • Page 93: Edge Guide Unit Removal

    Disassembly and Assembly 3.2.10.6 Edge Guide Unit Removal 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 loading 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.

  • Page 94: Paper Eject Frame Removal

    &2/25 EPSON Stylus 1520 Main Bottom Frame Edge Guide Unit Figure 3-19. Engagement of the Edge Guide with the Main Bottom Frame 3.2.10.7 Paper Eject Frame Removal Remove the printer mechanism unit. (Refer to Section 3.2.6.) Disconnect the connector cables for the HP and cover open sensors from the connectors.

  • Page 95: Pump Unit Removal

    Disassembly and Assembly 3.2.10.8 Pump Unit Removal 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.

  • Page 96: Carriage (Cr) Unit Removal

    &2/25 EPSON Stylus 1520 3.2.10.9 Carriage (CR) Unit Removal 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.
  • Page 97 Disassembly and Assembly Make platen gap, Bi-directional, and Uni-directional adjustments after installing the CR unit and parallelism adjustment bushings. (Refer to Chapter 4.) If the printheads are replaced along with the CR unit, be sure to write printhead data to the EEPROM. (Refer to Chapter 4.) WORK POINT When attaching the timing belt to the CR unit, note that the 2 sides of the belt are flat and toothed.

  • Page 98: Base Frame Assembly Removal

    &2/25 EPSON Stylus 1520 3.2.10.10 Base Frame Assembly Removal 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 mounting 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.

  • Page 99: Paper Loading Roller Unit Removal

    Disassembly and Assembly 3.2.10.11 Paper Loading Roller Unit Removal 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.
  • Page 100 &2/25 EPSON Stylus 1520 Gear (PF Roller) ASF Transmission Gear Set Bushing Paper Load Shaft E-ring Bushing Edge Guide PF Roller Figure 3-26. Paper Loading Roller Removal WORK POINT Note the direction in which the paper loading gear and the gear (29) are engaged. (Refer to the figure below.)
  • Page 101 Disassembly and Assembly Gear 29 (ASF Transmission Gear Set) Gear (PF Roller) Figure 3-27. Gear Engagement 3-29...

  • Page 102: Paper Feed (Pf) Roller Removal

    &2/25 EPSON Stylus 1520 3.2.10.12 Paper Feed (PF) Roller Removal 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.

  • Page 103: Rear Paper Guide Removal

    Disassembly and Assembly 3.2.10.13 Rear Paper Guide Removal 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.

  • Page 104: Middle Frame Assembly Removal

    &2/25 EPSON Stylus 1520 3.2.10.14 Middle Frame Assembly Removal 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.
  • Page 105 Chapter 4 Adjustment 4.1 Overview ....................... 4-1 4.1.1 Platen Gap Adjustment ..................... 4-2 4.1.2 Initialization........................4-4 4.1.3 Writing Printhead Voltage ....................4-5 4.1.3.1 Determining Printhead Voltage................4-6 4.1.4 Black Printhead Angular Adjustment ................4-7 4.1.5 Color Printhead Angular Adjustment ................4-8 4.1.6 BK-M Height Adjustment....................

  • Page 106: Overview

    Adjustment 4.1 Overview This section describes adjustments required after disassembling and assembling the printer. CAUTION Adjustments must be performed in the order listed in Table 4-1. Leave ink cartridges installed in the CR unit when returning the printer to the customer. Use 720 dpi exclusive paper when printing the adjustment pattern.

  • Page 107: Platen Gap Adjustment

    EPSON Stylus COLOR 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 adjustment bushing.
  • Page 108 Adjustment Start Set the PG lever to +. PG Adjustment Shift the CR to the left end. Does a Set the PG lever to 0. 1.14-mm Gauge fit? Adjust the PG. Widen the PG. Is the left PG OK? Does a 1.18-mm Gauge fit? Set the PG lever to +.

  • Page 109: Initialization

    EPSON Stylus COLOR 1520 4.1.2 Initialization This operation is performed to write the factory values into the EEPROM on the main board. With this operation, all the factory values are written in at the same time. Connect the printer to the host computer with a parallel interface cable.

  • Page 110: Writing Printhead Voltage

    Adjustment 4.1.3 Writing Printhead Voltage You need to write the printhead drive voltages to the EEPROM whenever you replace the printhead. Connect the printer and the host computer with a parallel interface cable. Run the adjustment program in the host computer. Input the customer data.

  • Page 111: Determining Printhead Voltage

    6. TITLE [C211 Stylus COLOR 1520 BK:<B1, B2, B3, B4, B5, B6, B7, B8> YMC:<C1, C2, C3, C4, C5, C6, C7, C8> Printhead ID (voltage) is identified as described below; B2 and B3...

  • Page 112: Black Printhead Angular Adjustment

    Adjustment 4.1.4 Black Printhead Angular Adjustment This adjustment must be made when replacing or disassembling the black printhead. The compression spring holds the black printhead to the supporting point of the CR unit and the angle adjust lever located underneath. The adjustment lever moves the black printhead parallel to the printing surface. This operation aligns the nozzles on the printhead parallel to the paper feed direction.

  • Page 113: Color Printhead Angular Adjustment

    EPSON Stylus COLOR 1520 4.1.5 Color Printhead Angular Adjustment You must make this adjustment when replacing or disassembling the color printhead. The color printhead, like the black printhead, is held by the compression spring to the supporting point of the CR unit and the angle adjustment lever located under the color printhead.

  • Page 114: Bk-M Height Adjustment

    Adjustment 4.1.6 BK-M Height Adjustment This adjustment is needed when the black and/or color printheads are removed or disassembled. With this operation, the vertical positions of the black and color printheads are aligned. To make the adjustment, adjust the vertical position of the color printheads based on the black printhead position by moving the printhead vertical adjust lever.

  • Page 115: Bi-D Adjustment

    EPSON Stylus COLOR 1520 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 that occurs between lines printed in 2 different print directions when the printer is in the Bi- directional printing mode.

  • Page 116: Head Gap Adjustment

    Adjustment 4.1.8 Head Gap Adjustment This operation is required when the black and/or color printheads are removed or replaced. It is performed to align the vertical lines between the black and color printheads. Connect the printer to the host computer with a parallel interface cable. Run the adjustment program on the host computer.
  • Page 117 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..............5-13...
  • Page 118 Troubleshooting 5.1 General Description This section describes procedures for isolating the unit failure in 2 levels: unit level troubleshooting and component level troubleshooting. Refer to the flowchart below to isolate the defective unit and perform repairs at the component level. Table 5-1, Table 5-2 and Table 5-3 show coil resistance for the CR motor and PF motor, sensor status, and error codes and solutions.
  • Page 119 EPSON Stylus COLOR 1520 Table 5-2. Sensor Status Sensor Test Pin No. Signal Level Sensor Status HP sensor CN9/Pins 1 and 2 Closed (> 2.5V) In the false absorption position Out of the false absorption position Open (< 2.5V) Rear PE sensor...
  • Page 120 Troubleshooting 5.2 Unit Level Troubleshooting This section provides flowcharts that enable you to isolate the defective unit. Once you follow the corresponding chart and identify the defective unit, refer to Section 5.3 and 5.4 to identify the specific component to be replaced. Table 5-4.
  • Page 121 EPSON Stylus COLOR 1520 1. The printer does not operate at all. START Is the AC Apply the correct input voltage AC input voltage. correct? Has the Replace the fuse and fuse (F1) on the disconnect the connector PSB/PSE board...
  • Page 122 Troubleshooting 2. An error is indicated. START See Table 5-3 to identify the error type. Turn off the printer and Fatal error? move the carriage manually. movement smooth? No ink cartridge Replace the ink cartridge with a new one. ink low error? Check the CR motor and drivers.
  • Page 123 EPSON Stylus COLOR 1520 3. Printing is abnormal. START Run a self-test. Does it print? Are all connector cables connected to the main board securely? Is the print result abnormal? Connect them properly. Perform the adjustments. (Refer to Chapter 4.)
  • Page 124 Troubleshooting 4. The printer feeds paper abnormally. START Is paper properly loaded in the ASF/tractor? Load the paper properly. Is a paper Remove objects from the jam error paper path. indicated? Is the problem corrected? Check the PF motor and driver.
  • Page 125 EPSON Stylus COLOR 1520 5. The control panel does not operate. START Is the control panel properly connected? Connect the control panel properly. Is the problem corrected? Replace the control panel. Replace the control panel. Is the problem corrected? Replace the main board.
  • Page 126 Troubleshooting 5.3 Repairing the C172 PSB/PSE Board at the Component Level This section contains information that enables you to repair and replace components on the electrical board (C172 PSB/PSE). Table 5-5 lists the potential causes for each symptom in order of most likely cause, with which you are able to find and repair the defective part.
  • Page 127 EPSON Stylus COLOR 1520 Check the output waveform at pin 7. 5.4 Repairing Components on the C211 Main Board This section provides information for repairing and replacing defective components on the C211-B main board. Table 5-6 and 5-7 list the causes for each symptom in order of most likely possibility.
  • Page 128 Troubleshooting CR does not CR motor Sub gate array Check the waveforms of Replace the main operate does not rotate IC5 is defective. DATA A (pin 6) or DATA B board or IC17. normally. normally. (pin 17) of the IC17. DATA PF drive output CPU is defective.
  • Page 129 EPSON Stylus COLOR 1520 Table 5-7. Component Repair of the C211 Main Board (2) Symptom Condition Cause Checkpoint Solution CR does not CR motor IC17 is defective. Check the PF drive waveform Replace IC17. operate does not output from IC17.
  • Page 130 Troubleshooting 5.5 Repairing the M-4I60 Printer Mechanism This section provides information that allows you to repair and replace defective components of the M-4160 printer mechanism. Tables 5-8, 5-9, and 5-10 contain various symptoms and the corresponding causes listed in order of most likely possibility. Table 5-8.
  • Page 131 EPSON Stylus COLOR 1520 Table 5-9. Repair of M-4I60 Printer Mechanism (2) Symptom Condition Cause Checkpoint Solution CR motor CR moves CR does not move Move the CR manually and Clean and lubricate the operates slightly at smoothly. check if the movement is CR guide shaft.
  • Page 132 Troubleshooting Printing Printing The ink cartridge is Install a new cartridge and Replace the ink operation is occasionally defective. run the self-test. (The cartridge. abnormal isn’t cartridge might have been (cont.) performed removed and reinstalled (cont.) several times by the user.) Table 5-10.
  • Page 133 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 ......................6-2 6.3 Lubrication and Adhesion................... 6-3...
  • Page 134 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 keep the optimum quality of functionality and output for a long period of time. WARNING Be sure to unplug the AC power cable before cleaning the printer.
  • Page 135 EPSON Stylus COLOR 1520 6.2 Service Maintenance When abnormal printing or a maintenance request error occurs, perform the maintenance service described below. 6.2.1 Printhead Cleaning If abnormal printing occurs, run a printhead cleaning sequence through the control panel. This may not have an impact on printing performance, however, because the most suitable printhead cleaning sequence (including flushing) is automatically performed during printing to keep the printer in its best condition.
  • Page 136 Table 6- 1. Recommended Lubricants Type Product name Content Part Code Applicability Grease G-26 40 g B702600001 EPSON-exclusive product 40 g 1019753 EPSON-exclusive product Adhesive NEJI lock B1401B 1000 g B730200200 EPSON-exclusive product Table 6- 2. Lubrication Points and Application Reference...
  • Page 137 EPSON Stylus COLOR 1520 Figure 6-1. Lubrication Points (1)
  • Page 138 Maintenance Figure 6-2. Lubrication Points (2)
  • Page 139 EPSON Stylus COLOR 1520 CR Motor CR motor fan Indent side facing outward Figure 6-3. Adhesive Points...
  • Page 140 Appendix A.1 Connector Summary....................A-1 A.1.1 Connector Pin Assignment....................A-2 A.2 Circuit Diagrams ....................A-6 A.3 Component Layout ....................A-12 A.4 Exploded Diagrams ...................A-15 A.5 Parts List ......................A-18 A.6 Dimension and Weight ..................A-23...

  • Page 141: Connector Summary

    Appendix A.1 Connector Summary Figure A-1 illustrates the interconnection of the main components. C172 PSB/PSE AC Input CR unit Color CN12 Color Parallel I/F Printhead Black Monochrome CN13 Printhead HP Sensor Type-B I/F Front PE Sensor CN10 C211-B MAIN Rear PE Sensor CN11 Mac Serial I/F Release Sensor...

  • Page 142: Connector Pin Assignment

    EPSON Stylus COLOR 1520 A.1.1 Connector Pin Assignment Table A-1 shows the locations and descriptions for the connectors on the circuit boards in this printer. Tables A-2 to A-13 show the pin assignments for each connector. Table A-1. Connector Summary...
  • Page 143 Appendix Table A-2. Connector Pin Assignments (CN2) Pin No. Signal Name Description  Ground  + 42 + 42 VDC  + 42 + 42 VDC  Ground  + 5 VDC  Ground Power off signal  Ground  + 5 VDC Table A-3.
  • Page 144 EPSON Stylus COLOR 1520 Table A-6. Connector Pin Assignments (CN8) Pin No. Signal Name Description SWA 1 Release sensor signal  Ground Table A-7. Connector Pin Assignments (CN 9) Pin No. Signal Name Description SWA 0 Cover open sensor signal ...
  • Page 145 Appendix Table A-11. Connector Pin Assignments (CN13) Pin No. Signal Name Description Cartridge sensor signal  Ground  Ground BLAT Latch signal  Ground BSI 2 Data  Ground BSI 1 Data  Ground BHCLK Clock signal  Ground BHNCHG NCHG signal ...

  • Page 146: Circuit Diagrams

    EPSON Stylus COLOR 1520 A.2 Circuit Diagrams Figure A-2. C211 MAIN-B Board Circuit Diagram (1/2)
  • Page 147 Appendix...
  • Page 148 EPSON Stylus COLOR 1520 Figure A-3. C211 MAIN-B Board Circuit Diagram (2/2)
  • Page 149 Appendix...
  • Page 153 Appendix Figure A-7. C172 PSB Board Component Layout A-13...
  • Page 154 EPSON Stylus COLOR 1520 Figure A-8. C172 PSE Board Component Layout A-14...

  • Page 158: Parts List

    EPSON Stylus COLOR 1520 A.5 Parts List Table A-14. Part No. Reference Table (1) Reference No. Description Part Price List Name Lower Housing HOUSING, LOWER Foot FOOT Shield Plate SHIELD PLATE Grounding Plate GROUNDING PLATE Grounding Plate;B GROUNDING PLATE;B Type-B I/F Shield Plate...
  • Page 159 Appendix MAIM Board Assembly BOARD ASSY., MAIN FOR USA. S.E.ASIA, OCEANI MAIN Board Assembly BOARD ASSY., MAIN FOR EUROPE PSB Board Assembly BOARD ASSY., POWER SUPPLY (120 V) Table A-15. Part No. Reference Table (2) Reference No. Description Part Price List Name PSE Board Assembly BOARD ASSY., POWER SUPPLY (220V/240V)
  • Page 160 EPSON Stylus COLOR 1520 CR Guide Shaft SHAFT, CR GUIDE Oil Pad OIL PAD CR Motor Assembly MOTOR ASSY., CR CR Motor Grounding Plate GROUNDING PLATE, CR, MOTOR CR Motor Mounting Plate MOUNTING PLATE, CR MOTOR CR Motor Fan FAN MOTOR, CR...
  • Page 161 Appendix Tractors Release Cam CAM, RELEASE, TR Tractor Release Shaft SHAFT, RELEASE, TR, Tractor Support Release Cam CAM, RELEASE, TR, SUPPORT Roller Grounding Spring SPRING, ROLLER GROUND Trigger Lever LEVER, TRIGGER Transmission Release Lever LEVER, RELEASE, TRANSMISSION;B ASF Release Shaft Bushing BUSHING, SHAFT, RELEASE, ASF ASF Release Cam CAM, RELEASE, ASF...
  • Page 162 EPSON Stylus COLOR 1520 Spring Pin SPRING PIN Ball Bearing BALL BEARING Hexagon Nut HEXAGON NUT Flange Nut FLANGE NUT Plain Washer PLAIN WASHER Retaining Ring RETAINING RING Retaining Ring RETAINING RING Retaining Ring RETAINING RING Retaining Ring RETAINING RING...

  • Page 163: Dimension And Weight

    26.2 inch (W) X 21.8 inch (D) X 7.9 inch (H) 666 mm (W) X 554 mm (D) X 202 mm (H) Weight 6.5 Kg Figure A-12 illustrates the exterior dimensions of the Stylus COLOR 1520. 26.2 in. (666 mm) 27.4 in. (695 mm) 7.95 in. (202mm) Figure A-12.

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