Epson Stylus 1500 Service Manual
  1. Manuals
  2. Brands
  3. Epson Manuals
  4. Printer
  5. Stylus 1500
  6. Service manual

Epson Stylus 1500 Service Manual

Color inkjet printer
Hide thumbs Also See for Stylus 1500:
Table of Contents

Advertisement

Quick Links

Download this manual See also: Service Manual, Reference Manual
EPSON COLOR INKJET PRINTER
Stylus 1500

SERVICE MANUAL

EPSON
4005452

Advertisement

Table of Contents
loading

Related Manuals for Epson Stylus 1500

Summary of Contents for Epson Stylus 1500

  • Page 1: Service Manual

    EPSON COLOR INKJET PRINTER Stylus 1500 SERVICE MANUAL EPSON 4005452...
  • Page 2 REVISION SHEET Revision Issue Data Revision Page Rev.A October 30,1995 1st issue...
  • Page 3 Includes a step-by-step guide for product disassembly and assembly. CHAPTER 4. ADJUSTMENTS Includes a step-by-step guide for adjustment. CHAPTER 5. TROUBLESHOOTING Provides Epson-approved techniques for adjustment. CHAPTER 6. MAINTENANCE Describes preventive maintenance techniques and lists lubricants and adhesives required to service the equipment. APPENDIX Describes connector pin assignments, circuit diagrams, circuit board component layout and exploded diagram.
  • Page 4 TABLE OF CONTENTS CHAPTER 1. GENERAL DESCRIPTION CHAPTER 2. OPERATING PRINCIPLES CHAPTER 3. DISASSEMBLY AND ASSEMBLY CHAPTER 4. ADJUSTMENTS CHAPTER 5. TROUBLESHOOTING CHAPTER 6. MAINTENANCE APPENDIX -vi-...

  • Page 5: Table Of Contents

    Chapter 1 Product Description Table of Contents 1.1 FEATURES 1.2 SPECIFICATIONS 1.2.1 Printing Specifications........1-3 1.2.2 Paper Feeding .
  • Page 6 List of Figures Figure 1-1. Stylus 1500 Exterior View....... . . 1-1 Figure 1-2.

  • Page 7: Features

    Stylus 1500 Service Manual General Description 1.1 FEATURES The Stylus 1500 is a business-use, high-speed, and high-quality color ink jet printer. The main features of this printer are: High print quality for color graphics 720 dpi printing High Speed semi 720 dpi printing...

  • Page 8: Table 1-1. Options And Consumables

    General Description Stylus 1500 Service Manual Table 1-1. Options and Consumables Model Description C83216* Color upgrade kit C823071 / C823081 32 KB serial interface card C82310* 32 KB parallel interface card C82313* 32 KB IEEE-488 interface card C82315* TWAIN interface card...

  • Page 9: Specifications

    Stylus 1500 Service Manual General Description 1.2 SPECIFICATIONS This section provides detailed information about the Stylus 1500. 1.2.1 Printing Specifications Printing method: On-demand ink jet Nozzle configuration: Monochrome: 64 nozzles (32 x 2 staggered) Color: 60 nozzles (20 x 3, magenta, cyan, yellow) 1.129 mm...

  • Page 10: Table 1-3. Character Tables And Fonts

    10.5 pt., 8 pt. - 32 pt. (in units of 2 pt.) EPSON Roman T 10.5 pt., 8 pt. - 32 pt. (in units of 2 pt.) EPSON Sans Serif H 10.5 pt., 8 pt. - 32 pt. (in units of 2 pt.) Note: Each typeface has four variations (normal, bold, italic, and bold italic).

  • Page 11: Paper Feeding

    Stylus 1500 Service Manual General Description 1.2.2 Paper Feeding Feeding method: Friction feed with built-in auto sheet feeder (ASF) and push tractor feed Note : Reverse feeding beyond 9.5 mm (0.38") is not allowed. Line spacing: 1/6 inch, 1/8 inch, or programmable in units of 1/360 inch...

  • Page 12: Environmental Conditions

    General Description Stylus 1500 Service Manual 1.2.5 Environmental Conditions Temperature: Operating: 10 to 35 C Non-operating: –20 to 40 C Non-operating: –20 to 60 C 1 month at 40 C 120 hours at 60 C Humidity: Operating: 20 to 80% RH...

  • Page 13: Ce Marking

    Stylus 1500 Service Manual General Description 1.2.8 CE Marking 220 - 240 V Version Lower Voltage Directive 73/23/EEC: EN60950 EMC Directive 89/336/EEC: EN55022 Class B EN50082-1 IEC801-2 IEC801-3 IEC801-4 1.2.9 Acoustic Noise Noise level: Approximately 45 dB(A) (according to ISO 7779)

  • Page 14: Interfaces

    General Description Stylus 1500 Service Manual 1.3 INTERFACES 1.3.1 Hardware Interfaces This section describes the Stylus 1500 interfaces. The printer is standard-equipped with a parallel interface. 1.3.1.1 Parallel Interface Forward Channel Transmission mode: 8 bit parallel, IEEE-P1284 compatibility mode Synchronization:...

  • Page 15: Table 1-4. Connector Pin Assignments And Signals (Forward Channel)

    Stylus 1500 Service Manual General Description Table 1-4 shows the connector pin assignments and signals for the forward channel of the parallel interface. Table 1-5 shows this information for the reverse channel. Table 1-4. Connector Pin Assignments and Signals (Forward Channel) Return Pin No.
  • Page 16 General Description Stylus 1500 Service Manual Reverse Channel Transmission mode: IEEE-P1284 nibble mode Adaptable connector: See the Forward Channel section earlier in this manual. Synchronization: Refer to the IEEE-P1284 specification. Handshaking: Refer to the IEEE-P1284 specification. Data transmission timing: Refer to the IEEE-P1284 specification.

  • Page 17: Optional Interface

    Stylus 1500 Service Manual General Description Table 1-5. Connector Pin Assignments and Signals (Reverse Channel) Return Pin No. Signal Name Description GND Pin Host Clk Host clock signal. Signals DATA0 - DATA7 represent data bits 0 to 7, respectively. Each signal is...

  • Page 18: Printer Language And Control Codes

    General Description Stylus 1500 Service Manual 1.3.2 Printer Languages and Control Codes Printer languages and control codes: ESC/P2 IBM 24XL EPSON Remote 1-12 Rev. A...

  • Page 19: Operations

    Stylus 1500 Service Manual General Description 1.4 OPERATIONS This section describes the controls, settings, and adjustments used to operate the Stylus 1500. 1.4.1 Control Panel The control panel for this printer is in the center of the upper case. The panel has 1 lock-type and 6 non-lock-type pushbuttons, and 10 LED indicators for easy operation of the various print functions.

  • Page 20: Indicators

    General Description Stylus 1500 Service Manual Font This button selects the desired font. Pressing Font while holding down Alt starts the color printhead cleaning cycle. Load/Eject This button loads and ejects the paper. 1.4.1.2 Indicators Operate (green) Lights when the printer power is on.

  • Page 21: Panel Functions At Power On

    Stylus 1500 Service Manual General Description 1.4.2 Panel Functions at Power On The table below describes the functions performed when the indicated buttons are held down while turning on the printer. Table 1-6. Panel Functions at Power On Button Function at Printer Power On Starts demonstration printing.

  • Page 22: Printer Conditions And Status

    General Description Stylus 1500 Service Manual 1.4.3 Printer Conditions and Status The table below shows how the printer LEDs indicate status and operating conditions. Table 1-7. Indicator Status LEDs Printer Status Paper Econ- Con- Font Font Power Data Pause densed...

  • Page 23: Setting Method

    Stylus 1500 Service Manual General Description 1.4.4.1 Setting Method The method of setting defaults is shown in the flowchart below. n Any default value specified is not stored in the EEPROM until the printer is turned off. n The last default value specified before power-off is stored in the EEPROM.

  • Page 24: Setting Menus

    General Description Stylus 1500 Service Manual 1.4.4.2 Setting Menus The default setting menus are described in the table below. Table 1-8. Default Settings Settings Menus (underlines indicate factory default settings) Print direction Auto / Bi-D / Uni-D Draft / Roman / Sans Serif / Courier / Prestige / Script / Roman T /...

  • Page 25: Table 1-9. Print Direction Mode Characteristics

    Stylus 1500 Service Manual General Description Table 1-9. Print Direction Mode Characteristics Item Monochrome Printing Color Printing Throughput is better. Color quality with special paper is Auto Throughput and quality is better. worse. (Color correction depends on the printing direction.) Throughput is better.

  • Page 26: Printer Adjustment Mode

    General Description Stylus 1500 Service Manual 1.4.5 Printer Adjustment Mode The Stylus 1500 allows the user to adjust the printing direction and head gap without a special program. The following list shows the adjustments for this printer in order: Pattern 1...
  • Page 27 Stylus 1500 Service Manual General Description Repeat steps 2 and 3 until the pattern No.4 or 7 is printed. The adjustments are executed in the following order: Pattern 1. Uni-D adjustment at 400 cps Pattern 2. Bi-D adjustment at 100 cps Pattern 3.

  • Page 28: Printer Initialization

    General Description Stylus 1500 Service Manual 1.4.6 Printer Initialization This printer has three initialization types: hardware, software, and panel. 1. Hardware Initialization Hardware initialization is performed by turning on the printer or sending the INIT signal to the parallel interface. The following functions are executed: o The printer mechanism is initialized.

  • Page 29: Paper Specifications

    Stylus 1500 Service Manual General Description 1.5 PAPER SPECIFICATIONS 1.5.1 Paper Type Specifications 1. Cut Sheets Table 1-11. Cut Sheet Specifications 297 mm (11.7") 210 mm (8.3") 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")

  • Page 30: Table 1-14. Index Card Specifications

    General Description Stylus 1500 Service Manual 4. Index Cards Table 1-14. Index Card Specifications Size 105 mm (4.1") 148 mm (5.8") Thickness 0.23 mm (0.0091") and less Note: When printing on index cards, set the adjust lever to the proper position. (Refer to Section 1.5.3, Adjust Lever Position.)

  • Page 31: Table 1-18. Banner Specifications

    Stylus 1500 Service Manual General Description 8. Banner Table 1-18. Banner Specifications Width: 210 mm (8.3") 432 mm (17") Size Length: 5 m (196.6") and less Thickness 0.08 mm (0.0031") - 0.1 mm (0.0039") Weight 64 g/m (17 lb) - 82 g/m...

  • Page 32: Printable Area

    General Description Stylus 1500 Service Manual 1.5.2 Printable Area 1. Cut Sheets PW (Page Width) (Left Margin) (Right M argin) (Top Margin) (Page Length) Printable Area (Bottom Margin) Figure 1-8. Printable Area for Cut Sheets Table 1-19. Minimum Margins for Different Cut Sheet Sizes...

  • Page 33: Figure 1-9. Printable Area For Envelopes

    Stylus 1500 Service Manual General Description 2. Envelopes Printable area Figure 1-9. Printable Area for Envelopes Table 1-20. Minimum Margins for Envelopes (Left Margin) (Right Margin) (Top Margin) (Bottom Margin) (minimum) (minimum) (minimum) (minimum) 3 mm 3 mm 3 mm 14 mm (0.12")

  • Page 34: Figure 1-10. Printable Area For Continuous Paper

    General Description Stylus 1500 Service Manual 3. Continuous Paper Printable Area 1 : Paper feed pitch is not guaranteed in this area. Printable Area 2 : Paper feed pitch is guaranteed in this area. *When the paper width is 406.4 mm (16"), this width is more than 38 mm (1.50").

  • Page 35: Adjust Lever Position

    Stylus 1500 Service Manual General Description 1.5.3 Adjust Lever Position This printer has an adjust lever to prevent printing smudges caused by the paper thickness not fitting the head gap. The adjust lever must be set to the proper position for the paper type. The adjust lever is located at the left upper side of the printer cover.

  • Page 36: Ink Cartridge Specifications

    General Description Stylus 1500 Service Manual 1.6 INK CARTRIDGE SPECIFICATIONS Black Type: Exclusive cartridge Model: S020062 Color: Black Print capacity 1900 pages /A4 ( LQ Roman ECMA text) Life: 2 years from indicated production date Storage temperature: –30 C - 40 C (86 F - 104 F) Storage under a month at 40 C (104 F) –30 C - 60 C (86 F - 140 F)

  • Page 37: Physical Specifications

    Stylus 1500 Service Manual General Description 1.7 PHYSICAL SPECIFICATIONS Weight: 11 .5 kg Dimensions: 664 mm (W) 504 mm (D) 202 mm (H) Rev. A 1-31...

  • Page 38: Main Components

    General Description Stylus 1500 Service Manual 1.8 MAIN COMPONENTS The main components of the Stylus 1500 are designed for easy removal and repair. They are as follows: o Main control board (C172 MAIN Board) o Power supply board (C172 PSB/PSE Board)
  • Page 39 Chapter 2 Operating Principles Table of Contents 2.1 OVERVIEW 2.2 PRINTER MECHANISM OPERATING PRINCIPLES 2.2.1 Printing Operation Principles ........2-1 2.2.2 Printer Mechanism .
  • Page 40 Figure 2-28. Color Data Transmission Timing ......2-23 Figure 2-29. EPSON Micro Dot Printing Driver Waveform ....2-24 List of Tables Table 2-1.

  • Page 41: Overview

    This printer mechanism uses a drop-on-demand ink jet system similar to the one used on all other EPSON ink jet printers. However, the printhead in this system is completely redesigned to make it more compact and to ensure a high level of reliability. The printer has two printheads: monochrome (black ink) and color (yellow, cyan, and magenta ink).

  • Page 42: Figure 2-3. Printing Operation States

    In normal dot printing mode, the print dot consists of two ink dots combined into a single dot. In EPSON Micro Dot Printing Mode, the print dot consists of a single ink dot only.

  • Page 43: Printer Mechanism

    Stylus 1500 Service Manual Operating Principles 2.2.2 Printer Mechanism The Stylus 1500 printer mechanism is composed of the printhead unit; paper feed, carriage drive, pump, and push tractor feed mechanisms; and various sensors. The figure below shows a functional block diagram of the printer mechanism. Depending on the position of the carriage unit, the paper feed motor torque is transmitted to the paper feed, auto sheet feeding, push tractor feed, or pump mechanisms via a disengage mechanism.

  • Page 44: Carriage Drive Mechanism

    Operating Principles Stylus 1500 Service Manual 2.2.3 Carriage Drive Mechanism The timing belt attached to the base of the carriage unit is driven by the carriage motor, causing the carriage unit to move along the carriage guide shaft from left to right or vice versa. The carriage drive motor in this printer is a 4-phase, 96-pole, hybrid-type stepping motor, allowing the printer to stop the carriage or change the carriage movement at any position.

  • Page 45: Paper Feed Mechanism

    Stylus 1500 Service Manual Operating Principles 2.2.4 Paper Feed Mechanism This printer’s paper feed mechanism consists of the built-in ASF (auto sheet feeder), push tractor, PF (paper feed) motor, front/rear PE (paper end) sensors, PF roller, eject roller unit, and disengage mechanism.

  • Page 46: Figure 2-6. Paper Feed Mechanism

    Operating Principles Stylus 1500 Service Manual PF Motor Release Gear PF Motor Pinion Gear Disengage Gear To Tractor To A SF ASF Tra nsmission Ge ar PF Roller Paper Eject Roller Pu mp Un it Eject Roller Unit Eject Paper Shaft Figure 2-6.

  • Page 47: Push Tractor Mechanism

    Stylus 1500 Service Manual Operating Principles 2.2.4.2 Push Tractor Mechanism The release gear of the push tractor is located on the left side of the printer mechanism. By operating the release lever, the release gear is engaged between the PF roller gear and the push tractor gear. The release gear transmits the PF motor torque from the PF roller to the push tractor.

  • Page 48: Platen Gap Adjust Mechanism

    Operating Principles Stylus 1500 Service Manual 2.2.5 Platen Gap Adjust Mechanism The platen gap adjust lever, attached to the left upper side of the printer cover, should be set to the appropriate position for the paper thickness. The platen gap adjust mechanism consists of the platen gap adjust lever, carriage guide shaft, and two parallelism adjust bushings.

  • Page 49: Ink System

    Stylus 1500 Service Manual Operating Principles 2.2.6 Ink System This printer’s ink system is composed of the following mechanisms: Ink cartridge Pump mechanism Cap mechanism Waste ink drain tank Wiping mechanism The figure below shows a diagram of the ink system.

  • Page 50: Pump Mechanism

    Operating Principles Stylus 1500 Service Manual 2.2.7 Pump Mechanism The paper feed motor drives the pump mechanism when the transmission gear moves to the position where the motor engages the pump mechanism gear trains, when the carriage unit is at the ink system home position.

  • Page 51: Figure 2-13. Release Cam Reset

    Stylus 1500 Service Manual Operating Principles 2. Resetting from the Pump Function Carriage Unit Switching Lever Switching Lever Path Disengage Mechanism Release Cam Lever Release Cam Figure 2-13. Release Cam Reset Carriage Unit PF Motor Pinion Gear PF Motor Switch Lever...

  • Page 52: Table 2-6. Pump Mechanism Operation

    Operating Principles Stylus 1500 Service Manual 3. Pump Operation The pump draws ink from the printhead nozzles and drains it into the waste ink drain tank to eliminate dust or bubbles in the nozzles. The figure below illustrates pump operation. When the paper feed drive motor rotates CCW (backward), the color pulleys in the wheel pump unit rotate in the direction of the arrow while squeezing the ink tube to push the ink out to the waste ink drain tank.

  • Page 53: Cap Mechanism

    Stylus 1500 Service Manual Operating Principles 2.2.8 Cap Mechanism The cap mechanism prevents the printhead nozzles from drying and keeps bubbles from forming inside the nozzles while the printer is not in use. The printer performs the capping operation automatically when it is not printing.

  • Page 54: Electrical Circuit Operating Principles

    Operating Principles Stylus 1500 Service Manual 2.3 ELECTRICAL CIRCUIT OPERATING PRINCIPLES The Stylus 1500 contains the following circuit boards: C172 MAIN Board (main control circuit board) C172 PSB/PSE Board (power supply circuit board). This is the same board used in the Stylus Color printer.

  • Page 55: Figure 2-19. Power Supply Circuit Diagram

    Stylus 1500 Service Manual Operating Principles The figure below shows a block diagram of the power supply circuit (C172 PSB/PSE). The power switch is in a secondary circuit that allows the CPU to remain active for a minimum of 20 seconds after the printer is turned off.

  • Page 56: Main Control Circuit Operating Principles

    Operating Principles Stylus 1500 Service Manual 2.3.2 Main Control Circuit Operating Principles The main control circuit for this printer is the C172 MAIN Board, which is controlled by a 16-bit TMP96C061AF CPU (IC1) running at 24.57 MHz. A 4M DRAM (CAS method) on this board is controlled by the CPU itself.

  • Page 57: Reset Circuits

    Stylus 1500 Service Manual Operating Principles 2.3.2.1 Reset Circuits The C172 MAIN Board contains two monitor reset circuits: +5 V and +42 V. The +5 V circuit monitors the voltage level of the +5 V line (logic line) using a PST592D reset IC (IC9), and outputs a reset signal to the CPU (IC1) and the E05E16 gate array (IC2) when the voltage level drops below +4.0 V.

  • Page 58: Table 2-8. Black Ink-Out Sensing Mode

    Operating Principles Stylus 1500 Service Manual HP sensor A photocoupler-type HP (home position) sensor is attached to the surface of the printer mechanism to detect the carriage home position. A HIGH level signal from this sensor indicates that the carriage is in the home position.

  • Page 59: Carriage Motor Driver Circuit

    Stylus 1500 Service Manual Operating Principles 2.3.2.3 Carriage Motor Driver Circuit The SLA7043M carriage motor driver IC (IC15) outputs a constant current to drive the carriage motor in the printer mechanism. The E05B16 gate array (IC2) determines the motor phase and speed and then sends a signal to the carriage motor driver IC using the 4-bit serial transmission line.

  • Page 60: Paper Feed Motor Driver Circuit

    Operating Principles Stylus 1500 Service Manual 2.3.2.4 Paper Feed Motor Driver Circuit The paper feed motor for this printer drives the following mechanisms: Paper feed Paper pickup Pump The UDN2917EB paper feed motor driver IC (IC15) outputs a constant current to drive the paper feed motor for the printer mechanism.

  • Page 61: Printhead Driver Circuit

    Stylus 1500 Service Manual Operating Principles 2.3.2.5 Printhead Driver Circuit The printhead driver circuit for this printer is composed of the following: Common driver circuit (trapezoidal drive pulse generation) Head driver circuit (nozzle control built into the printhead) The SED6100D 64-dot head driver in the black ink printhead driver circuit is used to selectively drive the black ink printhead nozzles.

  • Page 62: Figure 2-26. Normal Dot Data Transmission Timing

    Operating Principles Stylus 1500 Service Manual 1. Black Ink Printing Common driver circuit The common voltage (VH) is established to correspond to each of the black printhead characteristics. This value is stored in advance in the EEPROM on the C172 MAIN Board by the host computer. The E05B16 gate array (IC2) outputs the parallel data of the voltage control signals (BHV0 - BHV5) to the common driver circuit referring to this value.

  • Page 63: Figure 2-27. Color Upgrade Kit Connector Pin Alignment

    Stylus 1500 Service Manual Operating Principles 2. Color Ink Printing Common driver circuit The color printing common voltage (VH) is established to correspond to each of the color printhead characteristics. This value is stored in ID1 - ID4 patterns in each printhead driver circuit. By connecting the color printhead unit (color upgrade kit) to the carriage unit, these ID data are transmitted to the C172 MAIN Board by the printhead harness.

  • Page 64: Figure 2-29. Epson Micro Dot Printing Driver Waveform

    In EPSON Micro Dot Printing Mode, the print dot consists of only one ink dot, so a smaller dot is used. This mode is therefore useful for a larger graded representation and for preventing white banding. Micro Dot mode can be used for EPSON exclusive paper or transparencies with the appropriate paper settings.

  • Page 65: Ink System Management

    Stylus 1500 Service Manual Operating Principles 2.4 INK SYSTEM MANAGEMENT This section explains how the ink system is controlled to protect the printhead and ink supply and to ensure high-quality output. Ink system control is composed of the following operations:...
  • Page 66 Operating Principles Stylus 1500 Service Manual 8. Rubbing This operation removes dust or ink that adheres to the head surface. It eliminates ink by ejection and absorption. 9. Micro Absorbing When the cartridge is removed, it is possible for a small amount of air to form bubbles that can block the ink from the nozzles.

  • Page 67: Counters

    Stylus 1500 Service Manual Operating Principles 2.4.2 Counters The counters used for controlling ink system operation are stored in EEPROM 93C46 (IC11) on the main board. This data is stored in RAM on the main board while the printer is on.
  • Page 69 Chapter 3 Disassembly and Assembly Table of Contents 3.1 OVERVIEW 3.1.1 Precautions for Disassembling the Printer ......3-1 3.1.2 Tools .

  • Page 70: List Of Figures

    LIST OF FIGURES Figure 3-1. Disassembly Flowchart ........3-2 Figure 3-2.

  • Page 71: Overview

    Stylus 1500 Service Manual Disassembly and Assembly 3.1 OVERVIEW This section describes procedures for disassembling the main components of the printer. Unless otherwise specified, disassembled units or components can be reassembled by reversing disassembly procedures. Therefore, no assembly procedures are included. Precautions for any disassembly or assembly procedure are described under the heading “Disassembly/Assembly Points.”...

  • Page 72: Tools

    Disassembly and Assembly Stylus 1500 Service Manual 3.1.2 Tools This section describes the tools and equipment required for assembling, disassembling, or adjusting the printer. Use only tools that meet these specifications. Table 3-1. Tools Part No. Tool Name Type Phillips screwdriver no. 1...

  • Page 73: Disassembly And Assembly Procedures

    Stylus 1500 Service Manual Disassembly and Assembly 3.2 DISASSEMBLY AND ASSEMBLY PROCEDURES Follow all the precautions in Section 3.1.1 when disassembling the printer. This section consists of the topics shown in the diagram below. See the exploded view of the printer in the Appendix, if necessary.

  • Page 74: Upper Housing Assembly Removal

    Disassembly and Assembly Stylus 1500 Service Manual 3.2.1 Upper Housing Assembly Removal 1. 1. Remove the knob, release lever, and ink cartridge cover from the printer. (Refer to Figure 3-4.) Remove the rear sheet guide from the printer by pulling it toward the back. (See Figure 3-4.) Remove the tractor unit from the printer mechanism.
  • Page 75 Stylus 1500 Service Manual Disassembly and Assembly Remove 3 (CBB 3 12) screws and 3 (CBB 4 20) screws securing the upper housing to the lower housing. Insert a standard screwdriver in the holes in the lower housing, disengage the hooks, and remove the upper housing from lower housing by lifting it upward.

  • Page 76: Printer Mechanism (M-4E60) Removal

    Disassembly and Assembly Stylus 1500 Service Manual 3.2.2 Printer Mechanism (M-4E60) Removal Remove the upper housing. (See Section 3.2.1.) Remove the cables from connectors CN5 ~ 14 between the mechanism and C172 MAIN board. Remove 4 (CB 4 14) screws securing the mechanism to the lower housing.

  • Page 77: Main Controller (C172 Main Board) Removal

    Stylus 1500 Service Manual Disassembly and Assembly 3.2.3 Main Controller (C172 MAIN Board) Removal Remove the upper housing. (See Section 3.2.1.) Remove the printer mechanism. (See Section 3.2.2.) Remove the cables from connectors CN4 and CN16 between the power supply unit and the C172 MAIN board and the cable from control panel connector CN3.
  • Page 78 Disassembly and Assembly Stylus 1500 Service Manual Shield Cover CBS 3 x 6 CBP 3 x1 2 CBP 3 x12 Control Panel Cable C N 3 CBP 3 x12 C N 1 6 C17 2 MAIN Boa rd C N 4...
  • Page 79 Stylus 1500 Service Manual Disassembly and Assembly 3.2.4 Power Supply Unit (C172 PSB/PSE Board) Removal Remove the upper housing. (See Section 3.2.1.) Remove the printer mechanism. (See Section 3.2.2.) Disconnect the power cable from connector CN1 on the C172 PSB/PSE board and the harness from connector CN2 from the main controller board.

  • Page 80: Cr Motor Removal

    Disassembly and Assembly Stylus 1500 Service Manual 3.2.5 CR Motor Removal Remove the upper housing. (See Section 3.2.1.) Disconnect the cable from the CR motor. Remove the timing belt spring to loosen belt tension. Then remove the timing belt from the CR motor pulley.

  • Page 81: Pf Motor Removal

    Stylus 1500 Service Manual Disassembly and Assembly 3.2.6 PF Motor Removal Remove the upper housing. (See Section 3.2.1.) Unclamp the cable for the PF motor from the printer mechanism, and disconnect the cable from connector CN6 on the main controller board.

  • Page 82: Release Sensor Removal

    Disassembly and Assembly Stylus 1500 Service Manual 3.2.7 Release Sensor Removal Remove the upper housing. (See Section 3.2.1.) Disconnect the cable from the connector on the sensor. Remove the sensor from the left frame. (Insert tweezers to release the hook securing the sensor to the left frame.

  • Page 83: De Sensor Removal

    Stylus 1500 Service Manual Disassembly and Assembly 3.2.9 DE Sensor Removal Remove the upper housing. (See Section 3.2.1.) Disconnect the cable from the connector on the sensor. Remove the sensor from the sub-select cam frame. (Insert tweezers to release the hooks securing the sensor to the sub-select cam frame.

  • Page 84: Black Head Removal

    Disassembly and Assembly Stylus 1500 Service Manual 3.2.10 Black Head Removal Remove the upper housing. (See Section 3.2.1.) Remove 2 (CB(P2) 3 6) screws securing the CR cover to the carriage unit. Remove the CR cover from the carriage unit. (Insert tweezers to release the hooks securing the cover to the carriage unit, as shown in the figure below.)

  • Page 85: Black Head Assembly

    Stylus 1500 Service Manual Disassembly and Assembly 3.2.10.1 Black Head Assembly Connect the black head cable to the black head, and mount the head to the carriage unit, along with the YMC head cable and the FFC holder. Attach FFC holder B to the carriage unit.
  • Page 86 Disassembly and Assembly Stylus 1500 Service Manual When removing or changing the black head, the following adjustments are needed. 1.Writing the black head data (See Section 4.1.3.) 2.Black head angle adjustment (See Section 4.1.4) 3.Black - color head vertical adjustment (See Section 4.1.8.) 4.Head gap adjustment (See Section 4.1.9.)

  • Page 87: Left / Right Ink Drain Pad Removal

    Stylus 1500 Service Manual Disassembly and Assembly 3.2.11 Left / Right Ink Drain Pad Removal Right Ink Drain Pad Removal When protect counter A reaches 40,000, the printer displays a maintenance request error. (Refer to Section 2.4.2.) Remove the upper housing. (See Section 3.2.1.) Remove the printer mechanism.

  • Page 88: Printer Mechanism (M-4E60) Disassembly

    Disassembly and Assembly Stylus 1500 Service Manual 3.2.12 Printer Mechanism (M-4E60) Disassembly The procedures in this section explain how to remove components within the printer mechanism. Never touch the white PF gears. Handling them will cause damage or contamination that will affect print quality.

  • Page 89: Carriage Unit Removal

    Stylus 1500 Service Manual Disassembly and Assembly 3.2.12.2 Carriage Unit Removal Remove the printer mechanism. (See Section 3.2.2.) Remove the timing belt spring to loosen belt tension. Then, remove the timing belt from the CR motor pulley and the timing belt driven pulley on base frame. (See Section 3.2.5.) If the head cleaner lever gets caught on the carriage unit, manually remove the lever from the carriage unit.
  • Page 90 Disassembly and Assembly Stylus 1500 Service Manual Take proper measures to protect the printhead unit from static electricity, because the driver IC is directly attached to the printhead unit. Never touch the metallic surface of the nozzle cover for the printhead. Handle it only by holding the edges of the printhead.

  • Page 91: Paper Eject Frame Unit Removal

    Stylus 1500 Service Manual Disassembly and Assembly 3.2.12.3 Paper Eject Frame Unit Removal Remove the printer mechanism. (See Section 3.2.2.) Remove the carriage unit. (See Section 3.2.12.2.) Remove 3 (CBS 3 6) screws securing the paper eject frame unit to the left frame, the right frame, and the middle frame, and then remove the paper eject frame unit.

  • Page 92: Pump Unit Removal

    Disassembly and Assembly Stylus 1500 Service Manual 3.2.12.4 Pump Unit Removal Remove the printer mechanism. (See Section 3.2.2.) Remove the carriage unit. (See Section 3.2.12.2.) Remove the paper eject frame unit. (See Section 3.2.12.3.) Remove the (CBP 3 8) screw securing the pump unit to the right frame and the (CBS 3 6) screw securing the pump unit to the middle frame, and then remove the pump unit.

  • Page 93: Base Frame Removal

    Stylus 1500 Service Manual Disassembly and Assembly 3.2.12.5 Base Frame Removal Remove the printer mechanism. (See Section 3.2.2.) Remove the carriage unit. (See Section 3.2.12.2.) Remove the paper eject frame unit. (See Section 3.2.12.3.) Remove the E-ring securing the spur gear (46 mm) to the shaft of the left frame, and then remove 2 plain washers, a compression spring (1.96 g), and the gear from the left frame.

  • Page 94: Paper Eject Drive Unit Removal

    Disassembly and Assembly Stylus 1500 Service Manual 3.2.12.6 Paper Eject Drive Unit Removal Remove the printer mechanism. (See Section 3.2.2.) Remove the carriage unit. (See Section 3.2.12.2.) Remove the paper eject frame unit. (See Section 3.2.12.3.) Remove the base frame. (See Section 3.2.12.5.) Remove the left paper eject assembly stopper, and move the left and right paper eject assemblies to the notches on the right side of the paper eject drive unit.
  • Page 95 Stylus 1500 Service Manual Disassembly and Assembly When attaching the left and right paper eject assemblies to the paper eject drive unit, assemble the left paper eject assembly as follows to fit the cam cover assembly for the paper pickup roller unit and to fit the right paper eject assembly for the paper pickup roller unit:...

  • Page 96: Paper Pickup Roller Unit Removal

    Disassembly and Assembly Stylus 1500 Service Manual 3.2.12.7 Paper Pickup Roller Unit Removal Remove the printer mechanism. (See Section 3.2.2.) Remove the carriage unit. (See Section 3.2.12.2.) Remove the paper eject frame unit. (See Section 3.2.12.3.) Remove the base frame. (See Section 3.2.12.5.) Remove the paper eject drive unit.
  • Page 97 Stylus 1500 Service Manual Disassembly and Assembly Engage the paper pickup gear with the spur gear (29 mm) so that the teeth are as shown: Spur Gear (29 mm) in the ASF Transmission Gear Set Pap er Pickup Ge ar Figure 3-27.

  • Page 98: Paper Feed Roller Unit Removal

    Disassembly and Assembly Stylus 1500 Service Manual 3.2.12.8 Paper Feed Roller Unit Removal Remove the printer mechanism. (See Section 3.2.2.) Remove the carriage unit. (See Section 3.2.12.2.) Remove the paper eject frame unit. (See Section 3.2.12.3.) Remove the base frame. (See Section 3.2.12.5.) Remove the paper eject drive unit.

  • Page 99: Middle Frame Unit Removal

    Stylus 1500 Service Manual Disassembly and Assembly 3.2.12.9 Middle Frame Unit Removal Remove the printer mechanism. (See Section 3.2.2.) Remove the carriage unit. (See Section 3.2.12.2.) Remove the paper eject frame unit. (See Section 3.2.12.3.) Remove the base frame. (See Section 3.2.12.5.) Remove the paper eject drive unit.

  • Page 100: Rear Paper Guide Assembly

    Disassembly and Assembly Stylus 1500 Service Manual 3.2.13 Front / Rear PE Sensor Removal Remove the upper housing. (See Section 3.2.1.) Remove the printer mechanism. (See Section 3.2.2.) Disconnect the sensor cables from the sensor connectors. Remove the sensors from the rear paper guide assembly. (Release the hooks on both sides of the sensors by inserting a screwdriver between the sensors and the rear paper guide assembly as shown in the figure below.)

  • Page 101: Rom Replacement

    Stylus 1500 Service Manual Disassembly and Assembly 3.2.14 ROM Replacement Remove the (CBP 3 6) screw securing the ROM cover to the lower housing, and then remove the cover. Replace the ROM. When replacing the ROM, disconnect the AC cable from the AC inlet.
  • Page 103 Chapter 4 Adjustments Table of Contents 4.1 OVERVIEW 4.1.1 Platen Gap (PG) Adjustment ........4-2 4.1.2 Destination Data Writing Operation.

  • Page 105: Overview

    Stylus 1500 Service Manual Adjustments 4.1 OVERVIEW This section describes adjustments required when the printer is disassembled and assembled after repair. Since this printer has both black and color heads, it needs new adjustments not required for previous printers. Perform the appropriate adjustments after referring to the following table.

  • Page 106: Platen Gap (Pg) Adjustment

    Adjustments Stylus 1500 Service Manual 4.1.1 Platen Gap (PG) Adjustment This adjustment is required after the carriage unit has been removed from the printer mechanism or replaced. Adjust the distance between the printhead nose and paper surface to within 1.14 ~ 1.18 mm.
  • Page 107 Stylus 1500 Service Manual Adjustments START PG Adjustment Set the PG adjust lever to +. Move the carriage unit to the left. Does a 1.14 mm gauge Set the PG adjust lever to 0. pas s? PG Adjustment Widen PG...

  • Page 108: Destination Data Writing Operation

    Adjustments Stylus 1500 Service Manual 4.1.2 Destination Data Writing Operation The value that specifies the printer’s geographic destination is stored in the EEPROM on the C172 MAIN board. This value must be rewritten to the EEPROM when the printer mechanism, main board, or EEPROM chip is replaced, and also whenever the EEPROM is reset.
  • Page 109 Stylus 1500 Service Manual Adjustments Stylus 1500 Customer Data <********> 95/**/** << Menu 1 >> <<Menu 2>> Head Data Writing ——————— ————————- Color Ink Counter Rest Black Head Angle Adj. Uni-D Adj. Destination Data Writing only Bi-D Adj. Initial Black Ink Charging Color Head Angle Adj.

  • Page 110: Head Data Writing Operation

    Adjustments Stylus 1500 Service Manual 4.1.3 Head Data Writing Operation Data unique to the specific black printhead used in the printer is stored in the EEPROM on the C172 MAIN board. This value must be rewritten to the EEPROM when the printer mechanism, main board, or EEPROM chip is replaced, and also whenever the EEPROM is reset.
  • Page 111 Stylus 1500 Service Manual Adjustments <Head Voltage Value Setting> Head Rank (0-14) : n Change the value by pressing the keys. If the current value is same as the value printed on the printhead, press Enter to write the head rank data to the EEPROM. The program next lets you write the normal dot and micro dot head voltage data.

  • Page 112: Black Head Angle Adjustment

    Adjustments Stylus 1500 Service Manual 4.1.4 Black Head Angle Adjustment The black head angle adjustment is needed when the black head is replaced or disassembled. If this adjustment is not correct, a white banding problem may occur, or the color head timing may not match the black head timing.
  • Page 113 Stylus 1500 Service Manual Adjustments Press SPACE and ENTER to enter the adjustment mode. The printer prints out an adjustment pattern, and the adjustment selection menu appears, as shown below. Figure 4-5. Black Head Angle Adjustment Pattern Loosen 2 (CBP(P2) 3 6) screws securing the CR cover to the carriage unit (see Section 3.2.10).
  • Page 114 Adjustments Stylus 1500 Service Manual Fasten the 2 (CBP(P2) 3 6) screws. rWhen you replace both the black and color head, always adjust the black head angle first. The black head angle is the basis for the color head angle.

  • Page 115: Color Head Angle Adjustment

    Stylus 1500 Service Manual Adjustments 4.1.5 Color Head Angle Adjustment The color head angle adjustment is required when the optional color head is replaced or disassembled. If this adjustment is not correct, a white banding problem may occur or black head timing may not match the color head timing.
  • Page 116 Adjustments Stylus 1500 Service Manual Cy a n M a g e n t a M a g e n t a C y a n Ye llo w < Co lo r He a d An gle > Figure 4-8. Color Head Angle Adjustment Pattern...
  • Page 117 Stylus 1500 Service Manual Adjustments Press ENTER to exit the setting mode, or press SPACE to continue making settings. rWhen you replace both the black and the color heads, always adjust the black head angle first. The black head angle is the basis for the color head angle.

  • Page 118: Uni-D (Unidirectional Printing) Alignment Adjustment

    Adjustments Stylus 1500 Service Manual 4.1.6 Uni-D (Unidirectional Printing) Alignment Adjustment The unidirectional alignment is required when the printer mechanism, main board, or printhead (board) is replaced, or when the carriage mechanism is disassembled. Performing this adjustment sets a compensation value to correct for deviations in the print position.
  • Page 119 Stylus 1500 Service Manual Adjustments Refer to the pattern to change the value, within the range 30 to –30, by pressing the keys. Press Enter to write the data to the EEPROM. The printer immediately prints a new pattern using the input value.

  • Page 120: Bi-D (Bidirectional Printing) Alignment Adjustment

    Adjustments Stylus 1500 Service Manual 4.1.7 Bi-D (Bidirectional Printing) Alignment Adjustment The bidirectional adjustment is required when the printer mechanism, main board, or printhead (board) is replaced, or when the carriage mechanism is disassembled. Performing this adjustment sets a compensation value to correct for deviations in the print position.
  • Page 121 Stylus 1500 Service Manual Adjustments Figure 4-11. Bi-D Adjustment Pattern Input a value from –30 to 30 to bring C within 0 0.02 mm, as shown in the following flowchart. START Choose "Bi-D Adj." to enter the Bi-D adjustment mode.
  • Page 122 Adjustments Stylus 1500 Service Manual Press ENTER to exit the setting mode, or press SPACE to continue making settings. rThe setting values are not stored permanently in the EEPROM until you turn the printer off. Turn off the printer at once after the adjustment.

  • Page 123: Black - Color Head Vertical Adjustment

    Stylus 1500 Service Manual Adjustments 4.1.8 Black - Color Head Vertical Adjustment This adjustment sets the vertical position for the black and color heads. (Aligning the top nozzle for both, the # 4 nozzle on the black head and the # 1 nozzle on the color head, and aligning the bottom nozzle for both, the # 61 nozzle on the black head and the # 20 nozzle of the color head.) Make this adjustment using this...
  • Page 124 Adjustments Stylus 1500 Service Manual Black Magenta Figure 4-14. Black - Color Head Vertical Adjustment Input No. (Quit : ENTER ) DATA INPUT Look at the 7 patterns, and input the nearest pattern number, from 0 to 6, to align both black and magenta lines (or to make E within 0 0.035 mm) in the middle of the pattern, as shown in the...
  • Page 125 Stylus 1500 Service Manual Adjustments Press ENTER to exit the setting mode, or press SPACE to continue making settings. rThe setting values are not stored permanently in the EEPROM until you turn the printer off. Turn off the printer at once after the adjustment.

  • Page 126: Head Gap Adjustment (Black And Color Head)

    Adjustments Stylus 1500 Service Manual 4.1.9 Head Gap Adjustment (Black and Color Head) The head gap printing alignment adjustment is required when the printer mechanism, C172 MAIN board, or printhead (board) is replaced or disassembled. This adjustment sets the head drive timing between the black head and the color head.

  • Page 127: Figure 4-17. Head Gap Adjustment Flowchart

    Stylus 1500 Service Manual Adjustments Refer to the pattern and input a value from –12 to 12 to align both black and magenta lines (or to bring F within 0 0.035 mm), as shown in the following flowchart. START Choose " Head Gap Adj." to enter...
  • Page 128 Adjustments Stylus 1500 Service Manual 4.1.10 Other Functions of the Adjustment Program Color Ink Counter Reset Function This function initializes only the color ink consumption counter. The adjustment program cannot initialize the color ink counter unless you perform the ink cartridge replacement operation (see Section 1.4.1.1) and the EEPROM reset function (see Section 1.4.2).
  • Page 129 Chapter 5 Troubleshooting Table of Contents 5.1 OVERVIEW 5.2 UNIT LEVEL TROUBLESHOOTING 5.2.1 Printer does not operate at power on ......5-5 5.2.2 Error is detected .

  • Page 130: Overview

    Stylus 1500 Service Manual Troubleshooting 5.1 OVERVIEW The printer may exhibit different symptoms for the same problem, which makes troubleshooting more difficult. This section, however, provides simple and effective ways to facilitate troubleshooting. The following flowchart illustrates the main steps of the troubleshooting process.
  • Page 131 Troubleshooting Stylus 1500 Service Manual Table 5-2. Sensor Status Sensor Point Signal Level Status H (>2.5 V) In home position (HP) HP Sensor CN9 / Pin 1 L(GND) Away from HP Open Paper present Front CN10 / Pin 1 PE Sensor...
  • Page 132 Stylus 1500 Service Manual Troubleshooting Table 5-3. Error Codes LEDs Error Power Data Ink Out Paper Econo Condens Pause Font L Font Recovery Status (Black) (Colo Load paper and — — — — Paper out — — — — —...

  • Page 133: Unit Level Troubleshooting

    Troubleshooting Stylus 1500 Service Manual 5.2 UNIT LEVEL TROUBLESHOOTING When a problem occurs, you may be able to identify the defective unit by the symptoms. The table below lists the symptoms of certain problems. Once the problem is identified, refer to the flowchart that corresponds to the problem.

  • Page 134: Printer Does Not Operate At Power On

    Stylus 1500 Service Manual Troubleshooting 5.2.1 Printer does not operate at power on START Is the AC Use the correct input voltage input voltage. correct ? Replace the fuse Has fuse and disconnect F1 on the C172 CN2 on the C172 P SB /PS E PSB/PSE board.

  • Page 135: Error Is Detected

    Troubleshooting Stylus 1500 Service Manual 5.2.2 Error is detected START Identify the type of error indicated. (See Table 5-3.) Turn the printer Y E S off and try to Fatal error move the carriage manually. Does the carriage move smoothly ?

  • Page 136: Failure Occurs During Printing

    Stylus 1500 Service Manual Troubleshooting 5.2.3 Failure occurs during printing START Run the self-test. Does the self- test print? Are all cables Y E S Y E S connected to the main board firmly ? Is print quality bad ?

  • Page 137: Printer Does Not Feed The Paper Correctly

    Troubleshooting Stylus 1500 Service Manual 5.2.4 Printer does not feed the paper correctly START Is paper loaded in the sheet feeder or tractor correctly ? Load the paper correctly. Verify that the Does a paper path is clear. paper jam...

  • Page 138: Control Panel Operation Is Abnormal

    Stylus 1500 Service Manual Troubleshooting 5.2.5 Control panel operation is abnormal START Is the control panel connected properly ? Connect the control panel correctly. Is the problem corrected ? Replace the control panel. Is the problem corrected ? Replace the main board.

  • Page 139: Unit Repair - C172 Psb/Pse Board

    Troubleshooting Stylus 1500 Service Manual 5.3 UNIT REPAIR — C172 PSB/PSE BOARD This section is necessary only for servicers who repair to the component level. Servicers who perform only board replacement (including all U.S. servicers) can ignore this section. The table below lets you troubleshoot problems with the power supply board (C172 PSB/PSE). The table provides various symptoms, likely causes, and checkpoints.

  • Page 140: Unit Repair - C172 Main Board

    Stylus 1500 Service Manual Troubleshooting 5.4 UNIT REPAIR — C172 MAIN BOARD This section is necessary only for servicers who repair to the component level. Servicers who perform only board replacement (including all U.S. servicers) can ignore this section. The table below lets you troubleshoot problems with the main controller board (C172 MAIN). This table provides various symptoms, likely causes, and checkpoints.
  • Page 141 Troubleshooting Stylus 1500 Service Manual Table 5-6. Repair of the C172 MAIN Board(Continued) Symptom Cause Checkpoint Condition Solution Check the pin 1, 8, 11 or 18 of IC15. The carriage The carriage unit does not unit does not Replace IC15 is defective.

  • Page 142: Unit Repair - Printer Mechanism (M-4E60)

    Stylus 1500 Service Manual Troubleshooting 5.5 UNIT REPAIR — PRINTER MECHANISM (M-4E60) Repair any problems with the printer mechanism using the troubleshooting procedures in the table below. Table 5-7. Repair of the Printer Mechanism Symptom Condition Cause Checkpoint Solution Foreign...
  • Page 143 Troubleshooting Stylus 1500 Service Manual Table 5-7. Repair of the Printer Mechanism (Continued) Symptom Condition Cause Checkpoint Solution The pulley is Check for broken or worn Replace the carriage defective. pulley. driven pulley. The carriage does not Check that the timing belt...
  • Page 144 Stylus 1500 Service Manual Troubleshooting Table 5-7. Repair of the Printer Mechanism (Continued) Symptom Condition Cause Checkpoint Solution Replace the printhead to The printhead is see if this causes printing Replace. defective. A dot is not to be performed normally.
  • Page 146 Chapter 6 Maintenance Table of Contents 6.1 PREVENTIVE MAINTENANCE 6.2 SERVICE MAINTENANCE 6.2.1 Printhead Cleaning ......... . . 6-2 6.3 LUBRICATION AND ADHESIVES LIST OF FIGURES Figure 6-1.

  • Page 147: Preventive Maintenance

    Stylus 1500 Service Manual Maintenance 6.1 PREVENTIVE MAINTENANCE Although this printer requires no specific maintenance on a regular basis, it is recommended that you clean the printer thoroughly whenever you get a chance. You can clean: Outer case Use a soft, clean cloth, dampened with mild detergent, if necessary.

  • Page 148: Service Maintenance

    Maintenance Stylus 1500 Service Manual 6.2 SERVICE MAINTENANCE This printer requires some maintenance if it detects an error or if you observe a decline in print quality. 6.2.1 Printhead Cleaning If print quality deteriorates, clean the printhead using the built-in printhead cleaning function. The printer also has an automatic printhead cleaning cycle to ensure the proper nozzle operation for ink ejection, as well as to preserve the printhead in its best condition.

  • Page 149: Lubrication And Adhesives

    The printer must be lubricated properly when it is disassembled for component replacement, or if mechanical noise increases. EPSON recommends only the lubricants listed in table below for this printer, both of which have been tested extensively and found to comply with the requirements of this printer mechanism. Figure 6-1 shows the lubrication points and adhesive points.
  • Page 150 Maintenance Stylus 1500 Service Manual Figure 6-1. Lubrication and Adhesive Points Rev.A...
  • Page 151 Stylus 1500 Service Manual Maintenance CR Motor CR Motor Fan Figure 6-2. Lubrication and Adhesive Points (2) Rev.A...
  • Page 152 Appendix Table of Contents A.1 CONNECTOR SUMMARY A.2 CIRCUIT DIAGRAMS A.3 CIRCUIT BOARD COMPONENTS A-17 A.4 EXPLODED DIAGRAMS A-20 LIST OF FIGURES Figure A-1. Interconnection of Major Components..... . . A-1 Figure A-2.
  • Page 153 Stylus 1500 Service Manual Appendix A.1 CONNECTOR SUMMARY The figure below shows the interconnection between major components of the Stylus 1500. C172 PSB/PSE AC Inlet Carriage Unit CN16 Parallel Color Black HP Sensor Type-B I/F (Option) Front PE Sensor CN10...
  • Page 154 Appendix Stylus 1500 Service Manual Table A-1. Connector Summary Board Location Pins Description C172 MAIN Centronics parallel I/F Type-B I/F (option) Control panel (C172 PNL) +42 V power supply from the power board Carriage motor phase output PF/PM motor phase output...
  • Page 155 Stylus 1500 Service Manual Appendix Table A-2. Connector Pin Assignments – CN1 Name Description STROBE signal DATA1-8 Data strobe signal ACK signal BUSY Busy signal Paper end signal SLCT Printer select signal AFXT AUTO LINE FEED signal — Not connected —...
  • Page 156 Appendix Stylus 1500 Service Manual Table A-3. Connector Pin Assignments – CN2 Name Description 1 - 6 — +5 V +5 VDC Transmit data READY Ready to receive data Receive data — Not connected Reset Inhibit CMREQ Command request WRRDY...
  • Page 157 Stylus 1500 Service Manual Appendix Table A-4. Connector Pin Assignments – CN3 Name Description — Ground Switch 1 input signal LED9 LED 9 data LED8 LED 8 data Switch 2 input signal Switch 5 input signal Switch 0 data LED7...
  • Page 158 Appendix Stylus 1500 Service Manual Table A-7. Connector Pin Assignments – CN6 Name Description Phase A drive signal PF B Phase B drive signal PF/A Phase A drive signal PF/B Phase B drive signal Table A-8. Connector Pin Assignments – CN7...
  • Page 159 Stylus 1500 Service Manual Appendix Table A-10. Connector Pin Assignments – CN9 Name Description Home position detection signal — Ground Sensor drive power supply Table A-11. Connector Pin Assignments – CN10 Name Description 1, 4 Front paper on/out detection signal 2, 3 —...
  • Page 160 Appendix Stylus 1500 Service Manual Table A-16. Connector Pin Assignments – CN15 Name Description Disengage gear position detection signal — Ground Table A-17. Connector Pin Assignments – CN16 Name Description 1, 5 — +5 V Power supply for logic system 2, 4 —...
  • Page 161 Stylus 1500 Service Manual Appendix A.2 CIRCUIT DIAGRAMS Figure A-2. C172 MAIN Board Circuit Diagram (1) Rev.A...
  • Page 163 Stylus 1500 Service Manual Appendix Figure A-3. C172 MAIN Board Circuit Diagram (2) Rev.A A-11...
  • Page 165 Stylus 1500 Service Manual Appendix Figure A-4. C172 PSB Board Circuit Diagram Rev.A A-13...
  • Page 166 Appendix Stylus 1500 Service Manual Figure A-5. C172 PSE Board Circuit Diagram A-14 Rev.A...
  • Page 167 Stylus 1500 Service Manual Appendix Figure A-6. C172 PSE (Korea) Board Circuit Diagram Rev.A A-15...
  • Page 168 Appendix Stylus 1500 Service Manual LED9 LED9 LED8 Foreign LED8 GREEN LED0 LED7 LED1 ORANGE LED7 GREEN LED2 LED6 LED6 GREEN LED3 LED4 ORANGE LED5 LED5 LED5 LED4 LED6 LED4 LED7 LED3 GREEN LED8 LED3 GREEN LED2 LED9 LED2 MOUNTED...
  • Page 169 Stylus 1500 Service Manual Appendix A.3 CIRCUIT BOARD COMPONENT LAYOUTS Figure A-8. C172 MAIN Board Component Layout Rev.A A-17...
  • Page 170 Appendix Stylus 1500 Service Manual Figure A-9. C172 PSB/PSE Board Component Layout A-18 Rev.A...
  • Page 171 Stylus 1500 Service Manual Appendix Figure A-10. C172 PNL Board Component Layout Rev.A A-19...
  • Page 172 Appendix Stylus 1500 Service Manual A.4 EXPLODED DIAGRAMS Figure A-11. Stylus 1500 Exploded Diagram (1) A-20 Rev.A...
  • Page 173 Stylus 1500 Service Manual Appendix Figure A-12. Stylus 1500 Exploded Diagram (2) Rev.A A-21...
  • Page 174 Appendix Stylus 1500 Service Manual Figure A-13. Stylus 1500 Exploded Diagram (3) A-22 Rev.A...
  • Page 175 Stylus 1500 Service Manual Appendix Table A-18. Part No. Reference Table Ref. Description PPL Name Lower Housing HOUSING, UPPER Foot FOOT Shield Plate SHIELD PLATE Grounding Plate GROUNDING PLATE Grounding Plate B GROUNDING PLATE; B Type -B Interface Shield Cover...
  • Page 176 Appendix Stylus 1500 Service Manual Table A-18. Part No. Reference Table (Continued) Ref. Description PPL Name Main Board Assembly BOARD ASSY., MAIN Power Supply Board Assembly BOARD ASSY., POWER SUPPLY Harness HARNESS Harness HARNESS Power Cable CABLE ASSY., POWER SUPPLY Panel Board Assembly BOARD ASSY., PANEL...
  • Page 177 Stylus 1500 Service Manual Appendix Table A-18. Part No. Reference Table (Continued) Ref. Description PPL Name Front PE Harness HARNESS, PE, FRONT HP Sensor DETECTOR, HP HP Harness HARNESS, HP Leaf Detector B1 DETECTOR, LEAF, B1 Platen Harness HARNESS, PLATEN Pump Assembly PUMP ASSY.
  • Page 178 Appendix Stylus 1500 Service Manual Table A-18. Part No. Reference Table (Continued) Ref. Description PPL Name Right Edge Guide Assembly EDGE GUIDE ASSY., RIGHT Left Edge Guide Assembly EDGE GUIDE ASSY., LEFT Hopper Assembly HOPPER ASSY. Ink Cartridge Assembly HOLDER ASSY., INK CARTRIDGE Ink Sensor Assembly DETECTOR ASSY., INK...
  • Page 179 Stylus 1500 Service Manual Appendix Table A-18. Part No. Reference Table (Continued) Ref. Description PPL Name Left Waste Ink Pad POROUS PAD, INK EJECT, LEFT Ink Supply Tube TUBE, SUPPLY, INK Ink Supply tube Protector PROTECTOR, TUBE, INK SUPPLY Waste Ink Pad Cover...
  • Page 180 Appendix Stylus 1500 Service Manual Table A-18. Part No. Reference Table (Continued) Ref. Description PPL Name Combination Gear 13.8, 11 COMBINATION GEAR, 13.8, 11 Spur Gear 17 SPUR GEAR 17 Spur Gear 12 SPUR GEAR, 12 Combination Gear 22, 8.4 COMBINATION GEAR, 22, 8.4...
  • Page 181 Stylus 1500 Service Manual Appendix Table A-18. Part No. Reference Table (Continued) Ref. Description PPL Name Retaining Ring TYPE -E (4) RETAINING RING TYPE -E (4) Retaining Ring TYPE -E (5) RETAINING RING TYPE -E (5) Retaining Ring TYPE -E (6) RETAINING RING TYPE -E (6) Retaining Ring TYPE -E (2.3)

Table of Contents