EPSON COLOR INK JET PRINTER EPSON Stylus COLOR 1520 SERVICE MANUAL SEIKO EPSON CORPORATION 4007394...
However, should any errors be detected, SEIKO EPSON would greatly appreciate being informed of them. The above notwithstanding SEIKO EPSON can assume no responsibility for any errors in this manual or the consequences thereof. EPSON is a registered trademark of SEIKO EPSON CORPORATION.
POWER SUPPLY CABLE MUST BE CONNECTED, USE EXTREME CAUTION IN WORKING ON POWER SUPPLY AND OTHER ELECTRONIC COMPONENTS. CAUTION 1. REPAIRS ON EPSON PRODUCT SHOULD BE PERFORMED ONLY BY EPSON CERTIFIED REPAIR TECHNICIAN. 2. MAKE CERTAIN THAT THE SOURCE VOLTAGE IS THE SAME AS THE RATED VOLTAGE, LISTED ON THE SERIAL NUMBER/RATING PLATE.
Includes a step-by-step guide for product disassembly and assembly. CHAPTER 4. ADJUSTMENT Includes a step-by-step guide for adjustment. CHAPTER 5. TROUBLESHOOTING Provides EPSON-approved techniques for troubleshooting. CHAPTER 6. MAINTENANCE Describes preventive maintenance techniques and lists lubricants and adhesives required to service the equipment.
REVISION SHEET Revision Issued Data Contents Rev. A FEBRUARY 25 1997 First issue...
Product Description 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 print quality for color graphics...
10.5 pt., 8 pt. 32 pt. (every 2 pt.) 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 Epson Roman bold italic Rev.
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)
EPSON Stylus COLOR 1520 1.2.5 Paper Specification 18.104.22.168 Cut Sheet Table 0-5. Cut Sheet Size Size Width Length 210 mm (8.3”) 297 mm (11.7”) Letter 215.9 mm (8.5”) 279.4 mm (11.0”) 182 mm (7.2”) 257 mm (10.1”) Legal 215.4 mm (8.5”) 355.6 mm (14.3”)
Product Description 22.214.171.124 Labels (Cut Sheet) Table 0-9. Label Size Size Width Length 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 Note) Label must be printed at normal room temperature. 126.96.36.199 Continuous Paper Paper size :Paper width...
EPSON Stylus COLOR 1520 1.2.6 Printable Area Cut Sheet Figure 0-3. Printable Area for Cut Sheet Table 0-10. Minimum Margins for Different Cut Sheet Sizes LM (Left Margin) RM (Right Margin) (Paper Set to right Set to left Set to right...
Product Description Envelope Figure 0-4. Printable Area for Envelopes Table 0-11. Minimum Margin for Envelope LM (Left Margin) RM (Right Margin) TM (Top Margin) (minimum) (minimum) (minimum) (Bottom Margin) (minimum) 3 mm 3 mm 3 mm 14 mm (0.12”) (0.12”) (0.12”) (0.55”) Rev.
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. Figure 0-5. Printable Area for Continuous Paper Rev. A...
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.
EPSON Stylus COLOR 1520 1.2.8 Ink Specification 188.8.131.52 Black ink cartridge Table 0-13. 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...
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...
EPSON Stylus COLOR 1520 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 :FCC part15 subpart B class B 220 - 240 V version...
: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.
EPSON Stylus COLOR 1520 1.3.2 Mac Serial Interface 184.108.40.206 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 bit :Parity bit No parity bit :Stop bit 1 bit Handshaking...
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 message When ESC/P2 is selected: Main type :MTP48p, PW136cl10cpi, PRG(W0xxxx)rev, AP800ma, SPD0fast Product name :Stylus COLOR 1520 Emulation type :ESCPL2-00...
1.3.5 Interface Selection The EPSON Stylus COLOR 1520 has three types of interface available :Parallel, Serial, and optional interfaces. Each interface can be selected manually or automatically. Both modes are selected thorough the default setting mode.
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.
EPSON Stylus COLOR 1520 Panel Functions :The function of each button is described below. Power Function :Turns the printer off or on * Available condition :Always Load/Eject Function :Loads and ejects the paper. Available condition :Pause/Stand-by LF/FF Function :Feeds one line or page.
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 Switch * Function (while turning on the printer)
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”...
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.
Product Description 220.127.116.11 Setting Menus The default setting menus are described in the table below. Table 0-25. 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...
EPSON Stylus COLOR 1520 Table 0-26. Print Direction Mode Characteristics Black and White Printing YMCK Printing (color) y Throughput and quality is better. y Throughput is better. Auto y Color quality with special paper is worse. (Color correction depends on the print direction.)
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 . 18.104.22.168 Adjustment Method Figure 0-12. Printer Adjustment Flow Chart 22.214.171.124 Adjustment patterns...
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.
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 :C211 MAIN Board Power supply board :C172 PSB/PSE Board Control panel bard Printer 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 126.96.36.199 M-4I60 Printer Mechanism This printer is composed of the printhead unit, paper feeding mechanism, CR mechanism and the pump mechanism.
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.
EPSON Micro dot printing Both black and color printings can be performed in the normal dot printing mode and EPSON micro dot printing mode. In the normal dot printing mode, the printer uses less ink to create sharper dots.
EPSON Stylus &2/25 1520 Table 2-1. Special Printing Availability Paper Type 180 dpi 360 dpi 720 X 360 dpi 720 dpi 1440X720 dpi Black printing for the raster data 360 dpi 1 dot printing exclusive paper Normal dot Micro Weave...
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.
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 188.8.131.52 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.
EPSON Stylus &2/25 1520 184.108.40.206 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.
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.
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.
Operating Principles 220.127.116.11 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.
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.
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.
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.
Operating Principles 18.104.22.168 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.
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 2- 17 shows the block diagram of the electrical circuit.
Operating Principles Figure 2-18 illustrates the electrical circuit diagram. Figure 2-18. Power Supply 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, the status is fed back to the primary switching circuit through the transistor (Q82) and photocoupler (PC1) to cut the +42 V line to the regulator (OC51).
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.
EPSON Stylus &2/25 1520 22.214.171.124 Reset Circuits The C211 MAIN board contains two reset circuits: logic line (+5 ) and power (+42 ) line. Reset IC M51955BFP (IC4) monitors the +42 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.
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.
EPSON Stylus &2/25 1520 126.96.36.199 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.
Operating Principles 188.8.131.52 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.
EPSON Stylus &2/25 1520 184.108.40.206 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.
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...
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. The ink system consists of following operations: Power On Initialization Ink Cartridge Replacement Cleaning Print Start Flushing...
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.
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........................ 3-7 220.127.116.11 Black Head Removal....................3-7 18.104.22.168 Color Head Removal ....................
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.
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. Figure 3-1.
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.
Disassembly and Assembly 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.
EPSON Stylus &2/25 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. Rev. A...
Disassembly and Assembly 3.2.3 Print Head Removal 22.214.171.124 Black Head 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.
EPSON Stylus &2/25 1520 126.96.36.199 Color Head 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.
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 fixing the HP sensor to the paper eject frame using the tweezers, then remove the HP sensor.
EPSON Stylus &2/25 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 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.
Disassembly and Assembly 3.2.6 Printer Mechanism Unit Removal 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 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.
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.
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.
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. 188.8.131.52 Carriage (CR) Motor Assembly Removal Remove the printer mechanism unit. (Refer to 3.2.6.) Release the timing belt by removing the extension spring.
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.
EPSON Stylus &2/25 1520 184.108.40.206 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 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.
Disassembly and Assembly 220.127.116.11 DE (Disengage) Sensor Removal 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. Figure 3-15.
EPSON Stylus &2/25 1520 18.104.22.168 Front/Rear PE (Paper End) Sensor Removal 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.
Disassembly and Assembly 22.214.171.124 REL (Release) Sensor Removal 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. Figure 3-17. REL Sensor Removal 3-21 Rev.
EPSON Stylus &2/25 1520 126.96.36.199 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 load roller slide covers. Remove 2 flange nuts (M4) securing the edge guide unit to the left and middle frame assemblies.
Disassembly and Assembly 188.8.131.52 Paper Eject Frame Removal 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.
EPSON Stylus &2/25 1520 184.108.40.206 Pump Unit Removal Remove the printer mechanism unit. (Refer to Section 3.2.6.) Remove the paper eject frame. (Refer to Section 220.127.116.11.) Remove 2 screws (CBS, 3X6 and CBP, 3X8) securing the pump unit to the printer mechanism unit.
Disassembly and Assembly 18.104.22.168 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 22.214.171.124.) 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.
Disassembly and Assembly 126.96.36.199 Base Frame Assembly Removal Remove the printer mechanism unit. (Refer to Section 3.2.6.) Remove the paper eject frame. (Refer to Section 188.8.131.52.) Remove the CR unit. (Refer to Section 184.108.40.206.) 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.
EPSON Stylus &2/25 1520 220.127.116.11 Paper Load Roller Unit Removal Remove the printer mechanism unit. (Refer to Section 3.2.6.) Remove the paper eject frame. (Refer to Section 18.104.22.168.) Remove the CR unit. (Refer to Section 22.214.171.124.) Remove the base frame assembly. (Refer to Section 126.96.36.199.) Attach the knob to the PF roller shaft, and press the trigger lever down.
Disassembly and Assembly Figure 3-26. Paper Load Roller Removal 3-29 Rev. A...
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.
Disassembly and Assembly 188.8.131.52 Paper Feed (PF) Roller Removal Remove the printer mechanism unit. (Refer to Section 3.2.6.) Remove the paper eject frame. (Refer to Section 184.108.40.206.) Remove the CR unit. (Refer to Section 220.127.116.11.) Remove the base frame assembly. (Refer to Section 18.104.22.168.) Remove 1 screw (CBP, 3X8) securing the paper eject drive unit to the left frame assembly.
EPSON Stylus &2/25 1520 22.214.171.124 Rear Paper Guide Removal Remove the printer mechanism unit. (Refer to Section 3.2.6.) Remove the paper eject frame. (Refer to Section 126.96.36.199.) Remove the CR unit. (Refer to Section 188.8.131.52.) Remove the base frame assembly. (Refer to Section 184.108.40.206.) Remove the PF roller.
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 ....................4-5 220.127.116.11 Finding out the Head Voltage ..................4-6 4.1.4 Black Head Angular Adjustment ................... 4-7 4.1.5 Color Head Angular Adjustment ...................
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.
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.
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. Connect the printer and the host computer with a parallel interface cable.
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. Connect the printer and the host computer with a parallel interface cable. Run the adjustment program in the host computer.
EPSON Stylus &2/25 1520 18.104.22.168 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.
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.
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.
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.
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 Bi- directional printing mode.
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. Connect the printer and the host computer with a parallel interface cable.
Disassembly and Assembly 22.214.171.124 Middle Frame Assembly Removal Remove the printer mechanism unit. (Refer to Section 3.2.6.) Remove the paper eject frame. (Refer to Section 126.96.36.199.) Remove the pump unit. (Refer to Section 188.8.131.52.) Remove the CR unit. (Refer to Section 184.108.40.206.) Remove the base frame assembly.
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..............5-12...
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 Test pin No. Signal level Sensor status HP sensor CN9/Pin 1 and Pin 2 Close ( 2.5V) In the false absorbing position Off the false absorbing position Open ( 2.5V) Rear PE sensor...
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.
EPSON 6W\OXV &2/25 1520 1. The printer does not operate at all. Figure 5-2. Flowchart (1) Rev. A...
Troubleshooting 2. An error is indicated. Figure 5-3. Flowchart (2) Rev. A...
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.
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.
Troubleshooting 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 the IC17. operate does not output from the IC17. normally. operate CR motor is Check if the resistance of the...
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 M- 4160 printer mechanism. Table 5-8, 5-9, and 5-10 contain various symptoms and the corresponding causes listed in order of possibility.
Troubleshooting 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.
EPSON 6W\OXV &2/25 1520 Table 5-10. Repair of M4I60 Printer Mechanism (3) Symptom Condition Cause Checkpoint Solution Printing A vertical Bi-D is not properly Perform the adjustments. operation is line is not adjusted. (Refer to Chapter 4.) abnormal. aligned. White...
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...
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.
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.
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. Note the following when adhering;...
EPSON Stylus &2/25 1520 Table6- 3. Adhesive Points 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.
Appendix A.1 Connector Summary Figure A-1 illustrates the interconnection of the main components. Figure A-A-1. Interconnection of the Main Components Rev. A...
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...
Appendix Table A-2. Connector Pin Assignment (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. Connector Pin Assignment (CN3) Pin No.
EPSON 6W\OXV &2/25 1520 Table A-6. Connector Pin Assignment (CN8) Pin No. Signal Name Description SWA 1 Release sensor signal Ground Table A-7. Connector Pin Assignment (CN 9) Pin No. Signal Name Description SWA 0 Cover open sensor signal Ground Table A-8.
Appendix Table A-11. Connector Pin Assignment (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 Ground Power source Ground Ground Ground Common output...
Appendix 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 SHIELD COVER, TYPE-B, I/F Upper Housing HOUSING, UPPER...
EPSON 6W\OXV &2/25 1520 Table A-15. Part No. Reference Table (2) Reference No. Description Part Price List Name PSE Board Assembly BOARD ASSY., POWER SUPPLY Connector Cable HARNESS Connector Cable HARNESS Power Cable POWER CABLE (VD31303SA-10A) Power Cable POWER CABLE (BS31303SA-SR-10A)
Appendix Table A-16. Part No. Reference Table (3) Reference No. Description Part Price List Name Paper Load Guide Frame FRAME, GUIDE, LD Driven Roller Assembly ROLLER ASSY., DRIVEN Driven Roller Assembly B ROLLER ASSY., DRIVEN;B Parallelism Adjust Bushing BUSHING, PARALLEL, ADJUST Change Lever Bushing BUSHING, LEVER, CHANGE Paper Eject Holder Assembly D...
EPSON 6W\OXV &2/25 1520 Table A-17. Part No. Reference Table (4) Reference No. Description Part Price List Name Right Slide Cover COVER, SLIDE, RIGHT Left Slide Cover COVER, SLIDE, LEFT Paper Load Shaft SHAFT, LD Guide Edge Shaft SHAFT, EDGE GUIDE...
Appendix Table A-18. Part No. Reference Table (5) Reference No. Description Part Price List Name Screw (CBS 2X6) C. B. S. SCREW, 2X6, F/ZN PE Sensor ;B DETECTOR, PE;B HP Sensor Holding Plate HOLDING PLATE, HP DETECT Head Cable Guide GUIDE, CABLE, HEAD Drive Spur Gear Bushing BUSHING, SPUR GEAR, DRIVE...
EPSON 6W\OXV &2/25 1520 A.6 Dimension and Weight Dimension :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) Weight :6.5 Kg Figure A-12 illustrates the exterior dimension of the Stylus COLOR 1520.
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