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Epson Stylus COLOR 440 Service Manual

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Color ink jet printer
EPSON Stylus COLOR 440/640/740
®
TM-SC4/6/740

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Summary of Contents for Epson Stylus COLOR 440

  • Page 1  Color ink jet printer EPSON Stylus COLOR 440/640/740 ® TM-SC4/6/740...

  • Page 2: Epson Stylus Color 440, 640, And

    EPSON Stylus COLOR 440, 640, and 740 Chapter 1 Product Description PREFACE This manual describes basic functions, theory of electrical and mechanical operations, and maintenance and repair procedures of the Stylus COLOR 440, 640, and 740. The instructions and procedures included herein are intended for experienced repair technicians, and attention should be given to the precautions on the following pages.

  • Page 3: Fcc Compliance Statement For American Users

    EPSON Stylus COLOR 440, 640, and 740 Chapter 1 Product Description FCC COMPLIANCE STATEMENT FOR AMERICAN USERS This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.

  • Page 4: Copyright Notice

    While every precaution has been taken in the preparation of this book, Epson America, Inc., assumes no responsibility for errors and omissions. Neither Epson America, Inc., nor its affiliates shall be liable to the purchaser of this product or third parties for damages, losses, costs, or expenses incurred by purchaser or third parties as a result of: accident, misuse, or abuse of this product or unauthorized modifications, repairs, or alterations to this product.
  • Page 5 1. Repairs on EPSON products should be perfomed only by an 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. If the EPSON product has a primary AC rating different from the available power source, do not connect it to the power source.
  • Page 6 EPSON Stylus COLOR 440, 640, and 740 Chapter 1 Product Description...

  • Page 7: Table Of Contents

    Transparencies, Glossy Paper ....9 C206 MAIN-B Board (Stylus COLOR 440)... . 31 Envelopes ....... . . 9 C256 MAIN Board (Stylus COLOR 640) .
  • Page 8 EPSON Stylus COLOR 440, 640, and 740 Chapter 1 Product Description Head Cleaning Operations ....44 4. Disassembly and Assembly Pump Mechanism ......45 Overview .
  • Page 9 Lubrication ........141 7. Appendix Connector Summary (Stylus COLOR 440 and 640)..147 Connector Summary (Stylus COLOR 740) ... . . 151 EEPROM Address Map (Stylus COLOR 440 and 640) .

  • Page 10: Product Description

           PRODUCT DESCRIPTION...

  • Page 11: Features

    × (720 720 dpi) as the Stylus ProXL; the Stylus COLOR 640 and Stylus Stylus COLOR 440: 16.9” (429 mm) W x 9” (231 mm) D x 6.1” × COLOR 740 have the same print quality (1440 720) as the Stylus (155 mm) H COLOR 600 and Stylus COLOR 800.
  • Page 12 EPSON Stylus COLOR 440, 640, and 740 Chapter 1 Product Description Fonts: All three models: Standard and NLSP Stylus COLOR 740: 5 scalable fonts Table 1-1. Consumables Available for Stylus Color 440/640/740 Items Codes Remarks Black ink cartridge S020189 Stylus Color 740...

  • Page 13: Specifications

    EPSON Stylus COLOR 440, 640, and 740 Chapter 1 Product Description 1.2 Specifications Nozzle Configurations: Stylus COLOR 440 (see Figure 1-1): This section provides the following information for all three printers: Black— 64 nozzles printing specifications, paper specifications, printable area, adjust lever ×...
  • Page 14 2.2578 mm 7.9022 mm 2.2578 mm 10.16 mm 7.9022 mm 2.2578 mm M 19 M 20 M 21 (B2) (B1) (B2) (B1) Figure 1-1. Nozzle Configuration for the Stylus COLOR 440 Figure 1-2. Nozzle Configuration for the Stylus COLOR 640...
  • Page 15 32/360" 112/360" 112/360" Line spacing Stylus COLOR 440: 1/6 inch, or programmable in units of 1/360 inch Stylus COLOR 640: 1/6 inch, or programmable in units of 1/360 inch Stylus COLOR 740: 1/6 inch, or programmable in units of 1/360...
  • Page 16 EPSON Stylus COLOR 440, 640, and 740 Chapter 1 Product Description Paper capacity of input tray Stylus COLOR 740 Size: Index card to Legal Standard version: 11 character tables Italic, PC437 (US Standard, Europe), PC850 (Multilingual), Thickness: Less than 8 mm...

  • Page 17: Paper Specifications

    Weight EPSON Roman T 10.5 pt.; 8 to 32 pt. (2 pt. increments) EPSON Sans Serif H 10. 5pt.; 8 to 32 pt. (2 pt. increments) 17 lb (64 g/m ) to 24 lb (90 g/m NOTE: Each typeface has 4 variations: Normal, Bold, Italic, and Bold Italic.

  • Page 18: Transparencies, Glossy Paper

    EPSON Stylus COLOR 440, 640, and 740 Chapter 1 Product Description 1.2.2.2 Transparencies, Glossy Paper 1.2.2.4 Card Stock Sizes Sizes Letter: Width 8.5” (216 mm) x Length 11.0” (279 mm) 5 x 8” card: Width 5.0” (127 mm) x Length 8.0” (203 mm) Width 8.3”...

  • Page 19: Printable Area

    EPSON Stylus COLOR 440, 640, and 740 Chapter 1 Product Description 1.2.3 Printable Area Cut Sheets Figure 1-4 in the right column and the tables on the following page show printable areas in character mode and raster graphics mode. NOTE: Character mode is supported only by the Stylus COLOR 740.
  • Page 20 EPSON Stylus COLOR 440, 640, and 740 Chapter 1 Product Description Table 1-4. Raster Graphics Mode Paper Size PW (Typical PL (Typical LM (Minimum RM (Minimum TM (Minimum BM (Minimum Paper Width) Paper Length) Left Margin) Right Margin) Top Margin Bottom Margin) 0.54”...

  • Page 21: Adjust Lever Setting (Pg Adjust Lever)

    EPSON Stylus COLOR 440, 640, and 740 Chapter 1 Product Description Envelopes 1.2.3.1 Adjust Lever Setting (PG Adjust Lever) Table 1-6 and Figure 1-5 show the printable area for envelopes. The adjust lever (blue) on the right side under the printer cover needs to Table 1-6.

  • Page 22: Ink Cartridge Specifications

    Table 1-8. Black Ink Cartridge Specifications Items Specifications Type Exclusive EPSON ink cartridges designed for the Stylus COLOR 440, 640, and 740 Print capacity • Stylus COLOR 440 and 640 -540 pages / letter or A4 (ISO/IEC 10561 Letter Pattern at 360 dpi) •...
  • Page 23 Color Ink Cartridge Table 1-9. Color Ink Cartridge Specifications Items Specifications Type Cartridge especially designed for the Stylus COLOR 440, 640 and 740 Colors Cyan, Magenta, Yellow (CMY) Print capacity 300 pages / A4 (360 dpi, 5% duty each color)

  • Page 24: Environmental Conditions

    EPSON Stylus COLOR 440, 640, and 740 Chapter 1 Product Description 1.2.5 Environmental Conditions Resistance to shock Temperature Operating: 1 G, within 1 ms X, Y, and Z directions Operating : 50 to 95 °F (10 to 35 °C) (See Figure 1-8.) Non-operating: 2 G, within 2 ms Non-operating:-4 °F to 140 °F (-20 to 60 °C) in shipment...

  • Page 25: Electrical Specifications

    EPSON Stylus COLOR 440, 640, and 740 Chapter 1 Product Description 1.2.6 Electrical Specifications Printhead Life Stylus COLOR 440: 2x109 dots/nozzle 120 V Version Stylus COLOR 640: 2x109 dots/nozzle Rated voltage: 120 VAC Stylus COLOR 740: 4x109 dots/nozzle Input voltage range:...

  • Page 26: Interface Specifications

    EPSON Stylus COLOR 440, 640, and 740 Chapter 1 Product Description 1.3 Interface Specifications Table 1-10 on the following page shows the signal and connector pin assignments for the parallel interface. With these signals, a twisted pair line is used and the return side is connected to the GND signal.
  • Page 27 EPSON Stylus COLOR 440, 640, and 740 Chapter 1 Product Description Table 1-10. Signal and Connector Pin Assignments for the Parallel Interface Signal Return Pin No. In/Out Functional Description Name GND Pin The strobe pulse. Data is read in at the STROBE falling edge of this pulse.

  • Page 28: Parallel Interface (Reverse Channel)

    EPSON Stylus COLOR 440, 640, and 740 Chapter 1 Product Description 1.3.2 Parallel Interface (Reverse Channel) NOTE: The printer sends following device ID string when requested. Table 1-11. Details of Device ID Transmission mode: IEEE-1284 nibble mode Synchronization: Refer to the IEEE-1284 specification...
  • Page 29 EPSON Stylus COLOR 440, 640, and 740 Chapter 1 Product Description Table 1-12 shows pin assignments for the reverse channel. (Reverse channel is the mode in which all data is transferred from the printer to the computer.) For these signals, a twisted pair line is used, and the return side is connected to the signal GND.
  • Page 30 EPSON Stylus COLOR 440, 640, and 740 Chapter 1 Product Description The following are general notes on the parallel interface: Maximum and Minimum Timing for Data Transmission Parameter Minimum Maximum The Return GND Pin column in Tables 1-10 and 1-12 indicates a...

  • Page 31: Host Data Transfer Timeout Prevention

    EPSON Stylus COLOR 440, 640, and 740 Chapter 1 Product Description The following tables show typical input and output signal levels for the 1.3.2.2 Interface Selection interface (IEEE-1284 level 1 device). Signal levels are based on TTL Manual Selection: standards.

  • Page 32: Serial Interface (Stylus Color 740 Only)

    EPSON Stylus COLOR 440, 640, and 740 Chapter 1 Product Description 1.3.3 Serial Interface (Stylus COLOR 740 only) 1.3.3.1 USB Interface (Stylus COLOR 740 only) Standard Universal Serial Bus Specifications Rev. 1.0 Standard RS-423 compatible Universal Serial Bus Device Class Definition...

  • Page 33: Control Panel

    1.4.1 Indicators (LEDs) (1) Power Since the printer drivers for the Stylus COLOR 440, 640, and 740 Lights when the Operate switch is ON and AC power is supplied, control many settings and functions, these printers do not require many and flashes when the printer is receiving data or performing a control buttons.

  • Page 34: Control Panel Functions

    NOTES: 1. Prints the firmware version, ink counter value, and nozzle depends on the power-off time monitored by the timer IC. check pattern. 2. Code pages for the Stylus COLOR 440 and 640 are not available. 3. The user can use the parameter list to select settings for both the standard and NLSP version of the Stylus COLOR 740.

  • Page 35: Led Indicators And Printer States

    EPSON Stylus COLOR 440, 640, and 740 Chapter 1 Product Description 1.4.3 LED Indicators and Printer States Table 1-23 describes the appearance of the LED indicators during various printer states. You can use the table below to determine the nature of a printer problem and how to solve it.

  • Page 36: Error Conditions

    EPSON Stylus COLOR 440, 640, and 740 Chapter 1 Product Description 1.5 Error Conditions 2. As long as the ink cartridge remains installed in the printer, air cannot enter the printhead. However, if an old ink cartridge is removed from the printer, any air entering the cartridge can never be When the error conditions described in the following sections occur, the fully absorbed into the ink.

  • Page 37: No Ink Cartridge

    EPSON Stylus COLOR 440, 640, and 740 Chapter 1 Product Description 1.5.4 No Ink Cartridge Since 1 counter point equals 0.02 ml of ink, ink capacity is set at the following: The following can be reasons for the printer to indicate a No Ink...

  • Page 38: Printer Initialization

    1.7 Initialization Settings Stylus COLOR 440, 640, and 740 have three kinds of initialization The settings below take effect when the Stylus COLOR 440, 640, or methods, as described below: 740 are initialized. If the user changes any settings using the control...

  • Page 39: Main Components

    1.8.1 Printer Mechanism Like the printer mechanism for earlier printers such as the Stylus The main components of the Stylus COLOR 440, 640, and 740 are COLOR 600, the paper feed (PF) motor drives both the paper feed listed below. (Note that the bottom of the printer mechanism serves as mechanism and the ink pump.

  • Page 40: C206 Main-B Board (Stylus Color 440)

    The C206 MAIN-B board controls the operation of the printer The C256 MAIN board controls the operation of the printer mechanism mechanism and data processing operations for the Stylus COLOR 440. and data processing operations for the Stylus COLOR 640. It consists This board will eventually be replaced by the C255 MAIN board.

  • Page 41: C257 Main Board (Stylus Color 740)

    Stylus COLOR 640. It consists of the following major components. The power supply boards for the Stylus COLOR 440, 640 and 740 employ a switching regulator method to supply stable logic and power voltages. Because these boards contain a time delay circuit, electricity can be supplied to the printer for at least 30 seconds after power is turned off.

  • Page 42: C206 Pnl Board (Stylus Color 440 And 640)

    EPSON Stylus COLOR 440, 640, and 740 Chapter 1 Product Description 1.8.6 C206 PNL Board (Stylus COLOR 440 and 640) 1.8.7 C209 PNL Board (Stylus COLOR 740) The C206 PNL (panel) board is located in the panel housing on the front The C209 PNL (panel) board is located in the panel housing on the front of the printer.

  • Page 43: Operating Principles

           OPERATING PRINCIPLES...

  • Page 44: Printer Mechanism

    Like some previous versions of EPSON ink jet printers, the paper feed The printer mechanism includes all the mechanical components that motor in the Stylus COLOR 440, 640, and 740 is used not only for paper enable printing to take place. These components include the printhead feeding, but also to pump ink and drive the auto-sheet feeder.

  • Page 45: Printhead

    48 nozzles per color (120 dpi x 1 row The Stylus COLOR 640 and 740 print at the highest resolution (720 x 1440 dpi), while the Stylus Color 440 prints at 720 x 720 dpi. The printhead uses an on-demand MACH-type ink delivery system.
  • Page 46 EPSON Stylus COLOR 440, 640, and 740 Chapter 2 Operating Principles The following figures show sectional drawings of the printhead while waiting to print and during printing (normal state and ejecting state). Normal State: Cavity During the normal state, the PZT elements do not move and ink fills Ink Course the ducts between the ink cavity and the nozzles.

  • Page 47: Carriage Mechanism

    5 cps (60 Hz) to 340 cps (4080 Hz) Control method Bi-polar drive The carriage motor for the Stylus COLOR 440 and 640 is driven by 1-2, Rotor Coils 2-2, and W1-2 phase drive methods. The Stylus COLOR 740 uses 2-2, 1-2, W1-2, 2W1-2, and 4W1-2 phase drive methods.

  • Page 48: Platen Gap And Parallelism Adjustment Mechanisms

    EPSON Stylus COLOR 440, 640, and 740 Chapter 2 Operating Principles 2.1.3 Platen Gap and Parallelism Adjustment Mechanisms The platen gap (PG) adjustment lever changes the distance between Carriage Motor the printhead and the platen. (See Figure 2-6.) The distance can vary...

  • Page 49: Carriage Lock Mechanism

    The PF motor for the Stylus COLOR 440 and 640 uses 2-2 and 1-2 After power-off: phase drive methods, whereas the Stylus COLOR 740 uses 2W1-2, If the power is turned off during printing or any other operation, the W1-2, 1-2 and 2-2 phase drive methods.

  • Page 50: Paper Handling

    Chapter 2 Operating Principles 2.1.6 Paper Handling Sheet Feeder Paper handling on the Stylus COLOR 440, 640, and 740 is performed ASF Roller Drive Gear Clutch by the automatic sheet feeder (ASF) and paper feed mechanisms. The Eject Roller Drive Gear...

  • Page 51: Automatic Sheet Feeder (Asf)

    EPSON Stylus COLOR 440, 640, and 740 Chapter 2 Operating Principles Automatic Sheet Feeder (ASF) When the user sets a stack of paper in the printer, it rests on top of the upper ledge of the pad , shown in Figure 2-8. The stack remains on the pad while individual sheets are fed into the paper path.

  • Page 52: Paper Feed Mechanism

    EPSON Stylus COLOR 440, 640, and 740 Chapter 2 Operating Principles Paper Feed Mechanism 2.1.7 Ink System When the ASF loads paper into the printer, the PF and pinch rollers The ink system consists of the following: receive it. These rollers in turn move the paper across the platen, ink cartridge where printing takes place, and feed it out through the eject rollers.

  • Page 53: Head Cleaning Operations

    EPSON Stylus COLOR 440, 640, and 740 Chapter 2 Operating Principles Head Cleaning Operations Suctioning The printer performs a variety of tasks to keep the printhead clean and Suctioning takes place when the printer uses the ink pump to suction to keep ink from drying out on the printhead’s surface.

  • Page 54: Pump Mechanism

    EPSON Stylus COLOR 440, 640, and 740 Chapter 2 Operating Principles Pump Mechanism The pump mechanism, shown in Figure 2-12, actually performs three different functions: The pump itself removes ink from the ink cartridge, as part of the head cleaning operation.
  • Page 55 EPSON Stylus COLOR 440, 640, and 740 Chapter 2 Operating Principles Although economy of design results from the pump mechanism and the The table below summarizes the relationship between the PF motor’s paper feed mechanism sharing the same motor, it is not desirable for direction of rotation and the pump mechanism’s operation.

  • Page 56: Capping Mechanism

    EPSON Stylus COLOR 440, 640, and 740 Chapter 2 Operating Principles Capping Mechanism Valve-Closed Valve-Open The capping mechanism seals the printhead when the printer is not in Position Position use. This prevents the ink from thickening due to continuous exposure to the air.

  • Page 57: Electronic Circuit Boards

    Chapter 2 Operating Principles 2.2 Electronic Circuit Boards A C I n p u t The Stylus COLOR 440, 640, and 740 contain three circuit boards each: Stylus COLOR 440: Main: C206 Main-B or C255 Main Board * Power Supply:...

  • Page 58: Power Supply Board

    Power Supply Operation When the printer is plugged in, electricity is always present in the The Stylus COLOR 440, 640, and 740 use one of two power supply primary circuitry of the power supply. This means that certain boards: the PSB, which accepts 120 volts, or the PSE, which accepts components are always “hot,”...
  • Page 59 EPSON Stylus COLOR 440, 640, and 740 Chapter 2 Operating Principles voltage, the power supply’s cost is reduced. (Although a small capacitor C84. As a result, even when you shut the printer off, the transformer is still used, it’s relatively inexpensive compared with the capacitor continues supplying power to Q84 and keeps the printer on for large, heavy transformer that would otherwise be needed.)

  • Page 60: Main Circuit Board

    (IC6) EEPROM Reset IC (IC11) (IC9) Motor Motor Driver Driver TPM95C061 (IC15) (IC14) E05B44 (IC1) (IC2) Address Data CN11 C206 PNL ASF Sensor HP Sensor PE Sensor Figure 2-17. C206 MAIN-B, C255 MAIN Board Block Diagram for Stylus COLOR 440...
  • Page 61 EPSON Stylus COLOR 440, 640, and 740 Chapter 2 Operating Principles M-ROM (IC6) Head CN8 HD FFC CR Motor Batt1 Q7&Q9 PF Motor P-ROM D-RAM CN1 Parallel Timer (IC3) (IC5) Address Counter Common (IC10) Data Driver (IC7) EEPROM Reset IC...
  • Page 62 EPSON Stylus COLOR 440, 640, and 740 Chapter 2 Operating Principles CN3 USB P-ROM (IC3) Head CN9 HD FFC CR Motor Batt1 D-RAM Q2&Q3 (IC4) PF Motor CN1 Parallel Timer Common Counter Driver D-RAM (IC8) (IC14) (IC5) Buffer (IC9) EEPROM...

  • Page 63: Cpu

    EPSON Stylus COLOR 440, 640, and 740 Chapter 2 Operating Principles Parallel I/F control Using IEEE1284 Nibble mode, the gate array not only receives data The 16-bit CPU (IC1) runs at 25 MHz and performs the printer’s data from the host computer but can also return information about the processing and memory management functions.

  • Page 64: Eeprom

    EPSON Stylus COLOR 440, 640, and 740 Chapter 2 Operating Principles EEPROM The EEPROM of Stylus COLOR 440, 640, and 740 contains the following: Ink cartridge consumption data (Blk, CMY) Ink waste pad counter Printhead cleaning information (keeps track of previous cleaning...

  • Page 65: Reset Circuit

    Operating Principles Reset Circuit The reset circuit (IC 9 on the Stylus COLOR 440 and 640, IC8 on the 740) holds the reset pins of the CPU and the gate array LOW at power- on. This resets the chips’ internal state and prevents them from outputting erratic signals or data.
  • Page 66 EPSON Stylus COLOR 440, 640, and 740 Chapter 2 Operating Principles The reset IC on the main board of the Stylus COLOR 740 has a dual role. As shown in the figure below, it combines the reset circuitry with the power-off timer that monitors how long the printer is off.

  • Page 67: Power-Off Timer Circuit

    /SCK at power-on. /SIO 0.1u In the Stylus COLOR 440 and 640, an external crystal oscillator (CR1 or E05B43 (IC2) CR3) provides the basic timing pulse. In the Stylus COLOR 740, the oscillator is built into IC8, the same chip that contains the reset circuit.

  • Page 68: Sensor Circuits

    This information is received by the gate array. In the P E V Stylus COLOR 440, 640, and 740 printers, every time the black or G N D color ink cartridge is removed, its respective ink consumption counter gets reset.

  • Page 69: Printhead Driver

    EPSON Stylus COLOR 440, 640, and 740 Chapter 2 Operating Principles Printhead Driver The printhead control circuit has the following features: A S F V I C 2 High-speed drive: the common voltage drive circuit runs at 14.4 E 0 5 B 5 8 8 G N D KHz.
  • Page 70 PZTs (piezo-electric elements) in the printhead. The gate array outputs signals to the common drive IC (H8D2813, H8D2889, or CXA20995 in the Stylus COLOR 440, 640, or 740). The common drive IC then drives 2 power transistors arranged in a push-pull configuration (see Figures 2-32 through 2-34 below).
  • Page 71 EPSON Stylus COLOR 440, 640, and 740 Chapter 2 Operating Principles CXA20996(IC14) VCC45 Vcc45_2 NPNB PNPB H8D2889(IC7) CLK1 XOVM CLK2 /FLOOR VCC5 /RST DATA GND2 DCLK GND2 VOUTGND Data GND2 GND2 /STB E05B588(IC2) /CLR VHCTL SWC0 GND2 HWA0 SWC1 GND2...

  • Page 72: Paper Feed (Pf) Motor Driver

    PFA0 Out2A Rotor PFBPH Out2B PFB2 PFB0 PFV0 PFV1 PFV2 Vref1 PFV3 Vref2 Figure 2-36. PF Motor Driver for Stylus COLOR 440 UDN2917 E05B43 (IC15) (IC2) PFA0 Out1A PFA1 Out1B PFA0 Out2A Rotor PFB1 Out2B...

  • Page 73: Carriage (Cr) Motor Drive Circuit

    See the following figures for circuit details. LB1B45 E05B44 (IC14) (IC2) PFAPH Out1A CRA1 Out1B CRA0 Out2A Rotor CRBPH Out2B CRB1 CRB0 CRV0 CRV1 CRV2 Vref1 CRV3 Vref2 Figure 2-38. Carriage Motor Drive Circuit for Stylus COLOR 440...
  • Page 74 EPSON Stylus COLOR 440, 640, and 740 Chapter 2 Operating Principles UDN2917 E05B43 (IC15) (IC2) CRA0 Out1A CRA1 Out1B CRA0 Out2A Rotor CRB1 Out2B CRAPH CRBPH MTBV0 MTBV1 MTBV2 Vref1 MTBV3 Vref2 MTBV4 MTAV0 MABV1 MTAV2 MTAV3 MTAV4 Figure 2-39. Carriage Motor Drive Circuit for Stylus COLOR 640...
  • Page 75 EPSON Stylus COLOR 440, 640, and 740 Chapter 2 Operating Principles LB1847(IC11) E05B588(IC2) CRIA0 CRIA1 CRIA2 CRIA3 CRIB0 OUTA CRIB1 OUTA- CRIB2 CRIB3 CRPHAA CRPHAB PHASE1 OUTB CRENBA PHASE2 OUTB- CRENBB ENBL1 C90A05 ENBL2 (IC1) Vref1 Vref2 Current Detection M6252(IC15) Rotor Figure 2-40.
  • Page 76        TROUBLESHOOTING...

  • Page 77: Troubleshooting

    Power Supply Printer Mechanism * Main board refers to the following: Repair Repair Repair Stylus Color 440: C206 Main-B or C255 Main Stylus Color 640: C256 Main Stylus Color 740: C257 Main Reassembly and Adjustment Figure 3-1. Troubleshooting Process Flowchart...
  • Page 78 EPSON Stylus COLOR 440, 640, and 740 Chapter 3 Troubleshooting Table 3-2. Sensor Check Sensor Name Location Signal Level Sensor Status • Stylus Color 440/640 Open: less than 0.7 V Paper loaded CN4/Pins 1 & 2 Paper end sensor • Stylus Color 740 Closed: more than 2.4 V...
  • Page 79 EPSON Stylus COLOR 440, 640, and 740 Chapter 3 Troubleshooting Table 3-3. LED Indicators and Printer Status Indicators Error Status Recovery Ink out Ink Out Power Paper Out (Black) (Color) Load additional paper and press the Paper out Blinking —...

  • Page 80: Unit Level Troubleshooting

    EPSON Stylus COLOR 440, 640, and 740 Chapter 3 Troubleshooting 3.2 Unit Level Troubleshooting 3.2.1 Printer Does Not Turn On When a problem occurs, you can identify its cause by the symptoms the START printer exhibits. The table below lists the symptoms of certain problems.

  • Page 81: Error Indicated By Leds

    EPSON Stylus COLOR 440, 640, and 740 Chapter 3 Troubleshooting 3.2.2 Error Indicated by LEDs 3.2.3 Printing Failure START Try printing Check to see if from DOS Run a the interface Check the self-test. cable is loose. printer's If so, reconnect default it.

  • Page 82: Paper Not Feeding Correctly

    EPSON Stylus COLOR 440, 640, and 740 Chapter 3 Troubleshooting 3.2.4 Paper Not Feeding Correctly 3.2.5 Control Panel Operation is Abnormal START Is the Re-connect Is the control panel problem the control connected panel. solved? properly? Is the FFC cable...

  • Page 83: Unit Repair Of The Power Supply Board

    EPSON Stylus COLOR 440, 640, and 740 Chapter 3 Troubleshooting 3.3 Unit Repair of the Power Supply Board The names of the power supply boards are: S tylus COLOR 440: C206 PSB/PSE Stylus COLOR 640: C206 PSB/PSE Stylus COLOR 740: C257 PSB/PSE This section describes problems related to the power supply board.
  • Page 84 EPSON Stylus COLOR 440, 640, and 740 Chapter 3 Troubleshooting Table 3-5. Repair of the C206/C257 PSB/PSE Board Symptom Condition Cause Checkpoint Solution The printer does +42 V line is dead. F1 is open. Check F1 with a multimeter. Replace F1.
  • Page 85 EPSON Stylus COLOR 440, 640, and 740 Chapter 3 Troubleshooting Table 3-5. Repair of the C206/C257 PSB/PSE Board (continued) Symptom Condition Cause Checkpoint Solution (Continued) +5V line is dead. IC51 (L4962E/FA3635P) is Stylus COLOR 440/640 only: Replace IC51. defective. • Check the sawtooth...

  • Page 86: Unit Repair Of The Main Board

    EPSON Stylus COLOR 440, 640, and 740 Chapter 3 Troubleshooting 3.4 Unit Repair of the Main Board The name of the main board for each printer is: Stylus COLOR 440: C206 MAIN-B or C255 MAIN Stylus COLOR 640: C256 MAIN...
  • Page 87 EPSON Stylus COLOR 440, 640, and 740 Chapter 3 Troubleshooting Table 3-6. Unit Repair of Main Board Symptoms Condition Cause Check Point Solution The printer does not CPU does not operate. The reset circuit does not Stylus COLOR 440, 640: Replace IC9.
  • Page 88 EPSON Stylus COLOR 440, 640, and 740 Chapter 3 Troubleshooting Table 3-6. Unit Repair of Main Board (continued) Symptoms Condition Cause Check Point Solution (Continued) (Continued) (Continued) Stylus Color 740: Stylus Color 740: The printer does not CPU does not operate.
  • Page 89 EPSON Stylus COLOR 440, 640, and 740 Chapter 3 Troubleshooting Table 3-6. Unit Repair of Main Board (continued) Symptoms Condition Cause Check Point Solution (Continued) (Continued) Stylus COLOR 440, 640: Stylus COLOR 440: Stylus COLOR 440, 640: The carriage does not The carriage motor does IC14 is dead.
  • Page 90 EPSON Stylus COLOR 440, 640, and 740 Chapter 3 Troubleshooting Table 3-6. Unit Repair of Main Board (continued) Symptoms Condition Cause Check Point Solution Paper feed operation is Paper feed motor does not IC2 is defective. Stylus COLOR 440: Replace IC2 abnormal.

  • Page 91: Repair Of The Printer Mechanism

    EPSON Stylus COLOR 440, 640, and 740 Chapter 3 Troubleshooting 3.5 Repair of the Printer Mechanism This section provides instructions for repairing the printer mechanism. It describes various problems, likely causes, and solutions. Look up the symptom in the table below and check for malfunctioning parts as described in the checkpoint.
  • Page 92 EPSON Stylus COLOR 440, 640, and 740 Chapter 3 Troubleshooting Table 3-7. Repair of the Printer Mechanism (continued) Symptom Condition Cause Checkpoint Solution Abnormal printing A particular dot Printhead surface is not Perform the cleaning operation several Perform the cleaning operation.
  • Page 93 EPSON Stylus COLOR 440, 640, and 740 Chapter 3 Troubleshooting Table 3-7. Repair of the Printer Mechanism (continued) Symptom Condition Cause Checkpoint Solution Printing is not The carriage moves, Head FFC is loose. Check for proper connection. Connect the FFC properly.

  • Page 94: Disassembly And Assembly

           DISASSEMBLY AND ASSEMBLY...

  • Page 95: Overview

    This chapter tells you how to disassemble the main components of the Wear protective goggles to protect your eyes from ink EPSON Stylus Color 440, 640, and 740. Unless otherwise noted, you and flying springs. If ink gets in your eyes, flush your can reassemble the components by reversing the order in which you eyes with water and see a doctor immediately.

  • Page 96: Tools

    EPSON Stylus COLOR 440, 640, and 740 Chapter 4 Disassembly and Assembly 4.1.2 Tools If an ink cartridge is removed and needs to be C A U T I O N Table 4-1 lists the tools recommended for servicing the printer. Use installed again, be sure to replace it with a new ink only tools that meet these specifications.

  • Page 97: Specification For Screws

    EPSON Stylus COLOR 440, 640, and 740 Chapter 4 Disassembly and Assembly 4.1.3 Specification for Screws Table 4-2 shows screw specifications. During assembly, make sure to insert the correct screw at each location. Note that the screw numbers referred to in the manual (e.g., “#1”) correspond to the numbers of the screw types shown in the table, not to screw sizes.

  • Page 98: Service Checklist

    EPSON Stylus COLOR 440, 640, and 740 Chapter 4 Disassembly and Assembly 4.1.4 Service Checklist Before returning the printer after servicing, you may wish to use the checklist below to make sure the printer is in good condition. Table 4-3. Inspection Checklist for the Repaired Printer...

  • Page 99: Disassembly Procedures

    EPSON Stylus COLOR 440, 640, and 740 Chapter 4 Disassembly and Assembly 4.2 Disassembly Procedures The flowchart below shows the order of disassembly. Remove the Housing Refer to 4.2.1 Remove the Remove the Disassemble the Board Assembly Front Panels Printer Mechanism 4.2.2...

  • Page 100: Removing The Housing

    EPSON Stylus COLOR 440, 640, and 740 Chapter 4 Disassembly and Assembly 4.2.1 Removing the Housing (No.2) The printer does not have a lower housing. Therefore, the printer mechanism is fully exposed after you remove the upper housing. 1. Open the printer cover and turn the PG adjustment lever towards the + side (toward the rear).

  • Page 101: Removing The Board Assembly

    EPSON Stylus COLOR 440, 640, and 740 Chapter 4 Disassembly and Assembly 4.2.2 Removing the Board Assembly 5. To remove the boards from the shield plate, disconnect the main board from the power supply board at CN6. Then take out the The power supply board and the main board must be removed together, screws holding each board in place.
  • Page 102 EPSON Stylus COLOR 440, 640, and 740 Chapter 4 Disassembly and Assembly Figure 4-3. Removing the Shield Plate Figure 4-4. Removing the Boards...

  • Page 103: Removing The Front Panels

    EPSON Stylus COLOR 440, 640, and 740 Chapter 4 Disassembly and Assembly 4.2.3 Removing the Front Panels 1. Remove the housing. (See Section 4.2.1.) 2. Remove 1 screw (No.1) to detach the left panel housing. Note that the paper output tray will come loose with the panel housing.

  • Page 104: Disassembling The Printer Mechanism

    EPSON Stylus COLOR 440, 640, and 740 Chapter 4 Disassembly and Assembly 4.2.4 Disassembling the Printer Mechanism When you put the printhead back in the carriage, make C A U T I O N This section explains how to remove the main parts of the printer sure that the locating pin on the carriage fits inside the mechanism.
  • Page 105 EPSON Stylus COLOR 440, 640, and 740 Chapter 4 Disassembly and Assembly Figure 4-6. Removing the Printhead...
  • Page 106 EPSON Stylus COLOR 440, 640, and 740 Chapter 4 Disassembly and Assembly C A R R I A G E ( T O P V I E W ) P R I N T H E A D ( R E A R...

  • Page 107: Removing The Waste Ink Pad Assembly

    EPSON Stylus COLOR 440, 640, and 740 Chapter 4 Disassembly and Assembly 4.2.4.2 Removing the Waste Ink Pad Assembly 1. Remove the housing. (Refer to Section 4.2.1.) 2. Remove the 1 screw (No.4) securing the waste ink pad assembly to the frame on the lower-right side of the printer.

  • Page 108: Removing The Pump And Capping Assemblies

    EPSON Stylus COLOR 440, 640, and 740 Chapter 4 Disassembly and Assembly 4.2.4.3 Removing the Pump and Capping Assemblies The head cleaning blade must be fully retracted when C A U T I O N 1. Remove the housing. (Refer to Section 4.2.1.)
  • Page 109 EPSON Stylus COLOR 440, 640, and 740 Chapter 4 Disassembly and Assembly Figure 4-9. Removing the Pump and Capping Assemblies...
  • Page 110 EPSON Stylus COLOR 440, 640, and 740 Chapter 4 Disassembly and Assembly Figure 4-10. Pump Reassembly...

  • Page 111: Removing The Cr Motor

    EPSON Stylus COLOR 440, 640, and 740 Chapter 4 Disassembly and Assembly 4.2.4.4 Removing the CR Motor 5. Remove the board assembly (see Section 4.2.2). Then disconnect the CR motor connector from the main board (CN6 on the Stylus 1. Remove the housing. (Refer to Section 4.2.1.)

  • Page 112: Removing The Pf Motor

    EPSON Stylus COLOR 440, 640, and 740 Chapter 4 Disassembly and Assembly 4.2.4.5 Removing the PF Motor Handle all the gears carefully, as you would a bearing C A U T I O N 4.2.4.5.1 Stylus COLOR 740 surface; do not damage or mar the teeth and grooves of the gears.
  • Page 113 EPSON Stylus COLOR 440, 640, and 740 Chapter 4 Disassembly and Assembly 4.2.4.5.2 Stylus COLOR 440 and 640 NOTE: These instructions apply to the Stylus COLOR 440 and 640. See the previous page for the 740. 1. Remove the housing. (Refer to Section 4.2.1.)

  • Page 114: Removing The Asf Assembly

    EPSON Stylus COLOR 440, 640, and 740 Chapter 4 Disassembly and Assembly 4.2.4.6 Removing the ASF Assembly 1. Remove the housing. (Refer to Section 4.2.1.) 2. Remove the board assembly (see Section 4.2.2). Then disconnect the ASF sensor from the main board (CN11 on the Stylus COLOR 440 and 640;...
  • Page 115 EPSON Stylus COLOR 440, 640, and 740 Chapter 4 Disassembly and Assembly 4.2.4.6.1 Disassembling the ASF 10. Remove the left hopper release cam. 1. Remove the ASF assembly. (Refer to Section 4.2.4.6.) 11. Remove the hopper assembly together with the left and right ASF rollers.
  • Page 116 EPSON Stylus COLOR 440, 640, and 740 Chapter 4 Disassembly and Assembly Figure 4-16. Disassembling the ASF...
  • Page 117 EPSON Stylus COLOR 440, 640, and 740 Chapter 4 Disassembly and Assembly 4.2.4.6.2 Disassembling the ASF Rollers 1. Disassemble the ASF and remove the ASF rollers and hopper from the ASF assembly. (Refer to Section 4.2.4.6.) 2. Take out the right and left compression springs 1.66 from the back of the hopper assembly.

  • Page 118: Removing The Carriage Assembly

    EPSON Stylus COLOR 440, 640, and 740 Chapter 4 Disassembly and Assembly 4.2.4.7 Removing the Carriage Assembly The washer should be installed with its convex side C A U T I O N 1. Remove the housing. (Refer to Section 4.2.1.)
  • Page 119 EPSON Stylus COLOR 440, 640, and 740 Chapter 4 Disassembly and Assembly Figure 4-19. Removing the Carriage Assembly...

  • Page 120: Removing The Paper Feed And Paper Eject Roller Assemblies

    EPSON Stylus COLOR 440, 640, and 740 Chapter 4 Disassembly and Assembly 4.2.4.8 Removing the Paper Feed and Paper Eject Roller Assemblies 1. Remove the housing. (Refer to Section 4.2.1.) 2. Remove the carriage assembly. (Refer to Section 4.2.4.7.) 3. Remove the 3 screws (No.1) that hold the cable guide plate in place, and remove the cable guide plate.
  • Page 121 EPSON Stylus COLOR 440, 640, and 740 Chapter 4 Disassembly and Assembly Figure 4-22. Removing the PF Roller Figure 4-21. Removing the Platen and Pump Motor Drive Shaft...

  • Page 122: Removing The Pe Sensor

    EPSON Stylus COLOR 440, 640, and 740 Chapter 4 Disassembly and Assembly 4.2.4.9 Removing the PE Sensor 1. Remove the housing. (Refer to Section 4.2.1.) 2. Release the 2 hooks securing the PE sensor support to the frame. Then remove the support by sliding it upward.

  • Page 123: Removing The Hp Sensor

    EPSON Stylus COLOR 440, 640, and 740 Chapter 4 Disassembly and Assembly 4.2.4.10 Removing the HP Sensor 1. Remove the housing. (Refer to Section 4.2.1.) 2. Remove the HP sensor by releasing the hooks underneath it. Figure 4-24. Removing the HP Sensor...

  • Page 124: Adjustments

           ADJUSTMENTS...

  • Page 125: Overview

    5.1 Overview Table 5-2 Types of Adjustments Adjustment When Performed The EPSON Stylus COLOR 440, 640, and 740 require certain Parallelism adjustment • After removing or replacing the carriage guide adjustments to be performed after repairing or disassembling the shaft •...

  • Page 126: Adjustment Tools Required

    PROM version, and logic try using the other version. board (for the Stylus COLOR 440 only). For each printer, there are two versions of the adjustment program: an “a” version and a “b” version.

  • Page 127: Adjustments

    EPSON Stylus COLOR 440, 640, and 740 Chapter 5 Adjustments 5.2 Adjustments Put the thickness gauge on the flat part of the C A U T I O N platen ribs, as shown in Figure 5-1. The sections below provide specific instructions for each type of Move the carriage by pulling it with the timing adjustment.
  • Page 128 EPSON Stylus COLOR 440, 640, and 740 Chapter 5 Adjustments 12. If the gap is adjusted correctly, move the right parallelism adjustment bushing one notch toward you (the gap will be wider). Fixing the Parallelism Adjustment Bushing 13. Fix the right and left parallelism adjustment bushings with No.1 screws.

  • Page 129: Using The Adjustment Program

    EPSON Stylus COLOR 440, 640, and 740 Chapter 5 Adjustments 5.2.2 Using the Adjustment Program 5.2.2.2 Starting the Adjustment Program 1. Connect the printer to the host PC, and turn on the printer. The adjustment program lets you set various values to compensate for component manufacturing variations.

  • Page 130: Entering The Main Menu

    EPSON Stylus COLOR 440, 640, and 740 Chapter 5 Adjustments 5.2.2.3 Entering the Main Menu START Before performing any adjustment, you first need to take certain steps to get to the main menu. The instructions below explain these steps. Some of the steps may be different, depending on the printer and its...
  • Page 131 From the main menu, you can select adjustment and maintenance procedures as shown in Figure 5-8 below. Figure 5-6. Model Name Confirmation If the printer is a Stylus COLOR 440 or 640, select YES and continue to Step If the printer is a Stylus COLOR 740, select NO and go 5.2.2.3.2, “Selecting the CG Table.”...
  • Page 132 5-6). Proceed to one of the steps below. Figure 5-9. Model Name Not Registered If the printer is a Stylus COLOR 440 or 640, go back to of Section 5.2.2.3, “Entering the Main Menu.” Step 1 2. Press Alt-E. The model name input screen appears, as shown below.
  • Page 133 EPSON Stylus COLOR 440, 640, and 740 Chapter 5 Adjustments 5.2.2.3.2 Setting the CG Table 2. Perform one of the following: If your Stylus COLOR 740 supports NLSP characters (see the caution note below), select NLSP. C A U T I O N This section applies only to the Stylus COLOR 740.

  • Page 134: Initial Ink Charge

    EPSON Stylus COLOR 440, 640, and 740 Chapter 5 Adjustments 5.2.2.4 Initial Ink Charge 4. The confirmation screen shown below appears. Select Yes in answer to the question, “Do you want to reset the initial ink charge The initial ink charge ensures that the path from the ink cartridges to the flag?”...

  • Page 135: Head Cleaning Operation

    Section 5.2.2.4 Unlike their predecessors, the Stylus COLOR 440, 640, and 740 no longer use the dummy cleaning sequence CL3. This means you don’t have to send a print job to the printer between cleaning operations to enable cleaning to take place.

  • Page 136: Protection Counter

    EPSON Stylus COLOR 440, 640, and 740 Chapter 5 Adjustments 5.2.2.6 Protection Counter The protection counter uses a point system to keep track of the amount of ink that has been absorbed by the waste ink pad. With the adjustment program, you can check the current value of the counter.
  • Page 137 EPSON Stylus COLOR 440, 640, and 740 Chapter 5 Adjustments Resetting the protection counter 3. Select Already replaced. The screen shown in Figuure 5-18 appears, indicating that the protection counter has been reset. 1. Follow steps 1 through 3, above, to get to the protection counter menu screen.

  • Page 138: Market Destination Check

    EPSON Stylus COLOR 440, 640, and 740 Chapter 5 Adjustments 5.2.2.7 Market Destination Check 1. Enter the main menu. (See Section 5.2.2.3.) NOTE: This section applies only to the Stylus COLOR 740. 2. Select Adjustment in the main menu. The following screen appears.
  • Page 139 EPSON Stylus COLOR 440, 640, and 740 Chapter 5 Adjustments 4. Press Enter. The screen below appears, showing the current destination and CG settings. (The CG setting will be either NLSP or Standard.) Figure 5-21. Market Destination Confirmation Menu 5. When done, you can return to the adjustment menu by pressing the...

  • Page 140: Head Voltage Id Input

    EPSON Stylus COLOR 440, 640, and 740 Chapter 5 Adjustments 5.2.2.8 Head Voltage ID Input 4. Select Head Voltage ID Input. The following screen appears. The head voltage ID is a numerical value stored in the printer’s EEPROM. It corrects for manufacturing variations in the piezo-electric elements of the printhead.
  • Page 141 EPSON Stylus COLOR 440, 640, and 740 Chapter 5 Adjustments 6. After you input the head ID, it takes about 5 seconds to store it in the 7. Press Esc once. The Head Voltage ID Menu screen reappears EEPROM. After the value has been stored, the confirmation (Figure 5-22).

  • Page 142: Head Angle Adjustment

    EPSON Stylus COLOR 440, 640, and 740 Chapter 5 Adjustments 5.2.2.9 Head Angle Adjustment 2. Enter the main menu (see Section 5.2.2.3). Then select Adjustment. The head angle adjustment corrects for manufacturing variations in the shape of the carriage and the printhead. If this adjustment is not 3.
  • Page 143 EPSON Stylus COLOR 440, 640, and 740 Chapter 5 Adjustments 6. Look at the overlapping area between the black lines and the Head Angular Adjustment Pattern (BK-M) magenta lines in the check pattern. Move the adjusting lever so that the black and magenta lines are evenly spaced, as shown in Figure 5-30 below.
  • Page 144 EPSON Stylus COLOR 440, 640, and 740 Chapter 5 Adjustments 7. After changing the position of the adjust lever, select Head Angular Adjustment Pattern again. The printer prints another check pattern. 8. Examine the pattern for the proper alignment. 9. Continue adjusting the printer, checking the alignment each time, until you have achieved the correct adjustment.

  • Page 145: Bi-D Adjustment

    EPSON Stylus COLOR 440, 640, and 740 Chapter 5 Adjustments 5.2.2.10 Bi-D Adjustment 3. Select Print the Bi-D adjustment pattern. The following screen appears. The bi-directional adjustment enables you to change a timing value that controls vertical alignment of the printed output in the bidirectional print mode.
  • Page 146 EPSON Stylus COLOR 440, 640, and 740 Chapter 5 Adjustments 5. In the Bi-D Adjustment Menu, select Adjust. The screen below appears. Figure 5-34. Bi-D Value Input Menu 6. The current Bi-d adjustment value appears in the center of the screen (for example, “0”...

  • Page 147: Printing The A4 Check Pattern

    EPSON Stylus COLOR 440, 640, and 740 Chapter 5 Adjustments 5.2.2.11 Printing the A4 Check Pattern 3. At the confirmation, press Enter. The check pattern begins to print. When you want a quick overview of all the adjustment settings on one page, run the A4 check pattern.

  • Page 148: Maintenance

           MAINTENANCE...

  • Page 149: Cleaning

    EPSON Stylus COLOR 440, 640, and 740 Chapter 6 Maintenance 6.1 Cleaning 6.2 Corrective Maintenance This printer does not require regular cleaning. However, the following If you notice the print quality decreasing, or if all the LED indicators flash areas can be cleaned of dirt or debris as needed: simultaneously, the printer requires corrective maintenance.

  • Page 150: Lubrication

    Chapter 6 Maintenance 6.3 Lubrication Table 6-2. Lubrication Points (continued) Figure EPSON has carefully determined the best types of oil and grease to use Callout Lubrication Points, Type, and when lubricating the printer, as well as the optimal quantities to apply.
  • Page 151 EPSON Stylus COLOR 440, 640, and 740 Chapter 6 Maintenance Table 6-2. Lubrication Points (continued) Table 6-2. Lubrication Points (continued) Figure Figure Callout Lubrication Points, Type, and Callout Lubrication Points, Type, and Amount Remarks Amount Remarks Fig 6-5, Lubrication Point: the left and right Use a syringe to apply the grease.
  • Page 152 EPSON Stylus COLOR 440, 640, and 740 Chapter 6 Maintenance Never apply oil directly to the CR guide shaft. C A U T I O N Otherwise, you can damage printer components, including the printhead. Apply only the specified amount of oil to the oil pad.
  • Page 153 EPSON Stylus COLOR 440, 640, and 740 Chapter 6 Maintenance Figure 6-3. Top Frame and ASF Drive Gear Figure 6-4. Gears...
  • Page 154 EPSON Stylus COLOR 440, 640, and 740 Chapter 6 Maintenance Figure 6-5. Paper Feed and Paper Eject Rollers Figure 6-7. Hopper Assembly and ASF Figure 6-6. Timing Belt Tensioning Mechanism...

  • Page 155: Appendix

           APPENDIX...

  • Page 156: Connector Summary (Stylus Color 440 And 640)

    A.2. The following table lists the connectors used on the main board of the Stylus COLOR 440 and 640. The figure at right shows how the components are connected. Each connector’s pin assignments are detailed in the tables on the following pages.
  • Page 157 EPSON Stylus COLOR 440, 640, and 740 Appendix Table A-2. Parallel Interface Connector (CN1) Table A-3. Serial Interface Connector (CN2) Signal Return Pin No. Signal Name Functional Description Pin No. In/Out Functional Description Name GND Pin SCLK Synchronous clock signal The strobe pulse.
  • Page 158 EPSON Stylus COLOR 440, 640, and 740 Appendix Table A-6. HP Sensor Connector (CN5) Table A-9. Printhead Connector (CN8) (Stylus COLOR 440: C206MAIN-B and C255MAIN only) Signal Name Function Sensor detect signal Signal Name Function — Ground Black ink cartridge detect signal —...
  • Page 159 EPSON Stylus COLOR 440, 640, and 740 Appendix Table A-10. Printhead Connector (CN8) Table A-11. Power Supply Connector (CN10) (Stylus COLOR 640: C256MAIN only) Signal Name Function Signal Name Function +42 V — Mechanism drive power supply Black ink cartridge detect signal +42 V —...

  • Page 160: Connector Summary (Stylus Color 740)

    C A U T I O N The connector information contained in this section applies only to the Stylus COLOR 740. If you need information on the Stylus COLOR 440 or 640, refer to C 2 5 7 P S B / P S E Section A.1.
  • Page 161 EPSON Stylus COLOR 440, 640, and 740 Appendix Table A-14. Parallel Interface Connector (CN1) Table A-15. Serial Interface Connector (CN2) Signal Return Pin No. Signal Name Functional Description Pin No. In/Out Functional Description Name GND Pin SCLK Synchronous clock signal The strobe pulse.
  • Page 162 EPSON Stylus COLOR 440, 640, and 740 Appendix Table A-21. PF Motor Connector (CN8) Table A-17. HP Sensor Connector (CN4) Signal Name Function Signal Name Function Phase drive signal (A) Sensor detect signal Phase drive signal (B) — Ground PF-A Phase drive signal (-A) —...
  • Page 163 EPSON Stylus COLOR 440, 640, and 740 Appendix Table A-24. Printhead Connector (CN9) Signal Name Function Black ink cartridge detect signal Color ink cartridge detect signal Thermistor detect signal — Ground Head data latch pulse output — Ground Head data output (6)

  • Page 164: Eeprom Address Map (Stylus Color 440 And 640)

    A.4. 1: Japan (*3) ∗∗ 2: Custom (MJ-) Table A-25 lists the EEPROM addresses for the Stylus COLOR 440 and ∗∗ 3: Custom (Stylus Color) 640. In some cases, a given address may perform a different function ∗∗ 4: Custom (other name) in one printer than in the other.
  • Page 165 EPSON Stylus COLOR 440, 640, and 740 Appendix Stylus Color 440/640 EEPROM Address Map (Continued) Stylus Color 440/640 EEPROM Address Map (Continued) QPIT Factory QPIT Factory Address Explanation Setting Settings Settings Address Explanation Setting Settings Settings ∗ Stylus Color 440 Password 2 —...
  • Page 166 EPSON Stylus COLOR 440, 640, and 740 Appendix Stylus Color 440/640 EEPROM Address Map (Continued) Stylus Color 440/640 EEPROM Address Map (Continued) QPIT Factory QPIT Factory Address Explanation Setting Address Explanation Setting Settings Settings Settings Settings Panel mask bit 7: Enable Self Test...
  • Page 167 EPSON Stylus COLOR 440, 640, and 740 Appendix Stylus Color 440/640 EEPROM Address Map (Continued) Stylus Color 440/640 EEPROM Address Map (Continued) QPIT Factory QPIT Factory Address Explanation Setting Address Explanation Setting Settings Settings Settings Settings ∗ Ink counter Ink counter A...

  • Page 168: Eeprom Address Map (Stylus Color 740)

    Explanation Setting Settings Settings applies only to the Stylus COLOR 740. If you need Password 0 — information on the Stylus COLOR 440 or 640, refer to — Section A.3. EEPROM — mapping revision Table A-26 lists the EEPROM addresses for the Stylus COLOR 740.
  • Page 169 EPSON Stylus COLOR 440, 640, and 740 Appendix Table A-26. Stylus COLOR 740 EEPROM Address Map (continued) Table A-26. Stylus COLOR 740 EEPROM Address Map (continued) QPIT Factory QPIT Factory Address Explanation Setting Address Explanation Setting Settings Settings Settings Settings...
  • Page 170 EPSON Stylus COLOR 440, 640, and 740 Appendix Table A-26. Stylus COLOR 740 EEPROM Address Map (continued) Table A-26. Stylus COLOR 740 EEPROM Address Map (continued) QPIT Factory QPIT Factory Address Explanation Setting Address Explanation Setting Settings Settings Settings Settings CG table 0: Italic U.S.A.
  • Page 171 EPSON Stylus COLOR 440, 640, and 740 Appendix Table A-26. Stylus COLOR 740 EEPROM Address Map (continued) Table A-26. Stylus COLOR 740 EEPROM Address Map (continued) QPIT Factory QPIT Factory Address Explanation Setting Address Explanation Setting Settings Settings Settings Settings...
  • Page 172 EPSON Stylus COLOR 440, 640, and 740 Appendix Table A-26. Stylus COLOR 740 EEPROM Address Map (continued) QPIT Factory Address Explanation Setting Settings Settings Set at the factory. Set when the EEPROM is initialized from the control panel. *3: BUSY signal delay time from the falling edge of an /STB signal.

  • Page 173: Circuit Board Component Layouts

    EPSON Stylus COLOR 440, 640, and 740 Appendix A.5 Circuit Board Component Layouts This section contains the following circuit board component layouts: C206MAIN-B (Stylus COLOR 440) C256MAIN (Stylus COLOR 640) C257MAIN (Stylus COLOR 740) C206PSB/PSE (Stylus COLOR 440/640) C257PSB/PSE (Stylus COLOR 740)
  • Page 174 EPSON Stylus COLOR 440, 640, and 740 Appendix Figure A-4. C206MAIN-B Board Component Layout (1/2) (Stylus COLOR 440)
  • Page 175 EPSON Stylus COLOR 440, 640, and 740 Appendix Figure A-5. C206MAIN-B Board Component Layout (2/2) (Stylus COLOR 440)
  • Page 176 EPSON Stylus COLOR 440, 640, and 740 Appendix Figure A-6. C256MAIN Board Component Layout (1/2) (Stylus COLOR 640)
  • Page 177 EPSON Stylus COLOR 440, 640, and 740 Appendix Figure A-7. C256MAIN Board Component Layout (2/2) (Stylus COLOR 640)
  • Page 178 EPSON Stylus COLOR 440, 640, and 740 Appendix Figure A-8. C257MAIN Board Component Layout (1/2) (Stylus COLOR 740)
  • Page 179 EPSON Stylus COLOR 440, 640, and 740 Appendix Figure A-9. C257MAIN Board Component Layout (2/2) (Stylus COLOR 740)
  • Page 180 EPSON Stylus COLOR 440, 640, and 740 Appendix Figure A-10. Figure A-11. C206PSB Board Component Layout (Stylus COLOR 440 and 640) C206PSE Board Component Layout (Stylus COLOR 440 and 640)
  • Page 181 EPSON Stylus COLOR 440, 640, and 740 Appendix Figure A-13. Figure A-12. C257 PSE Board Component Layout (Stylus COLOR 740) C257 PSB Board Component Layout (Stylus COLOR 740)
  • Page 182 EPSON Stylus COLOR 440, 640, and 740 Appendix Figure A-15. C209PNL Component Layout Figure A-14. C206PNL Component Layout...

  • Page 183: Exploded Diagrams

    EPSON Stylus COLOR 440, 640, and 740 Appendix A.6 Exploded Diagrams This section contains the following exploded diagrams: Exploded diagrams for the Stylus COLOR 440 Exploded diagrams for the Stylus COLOR 640 Exploded diagrams for the Stylus COLOR 740...
  • Page 184 EPSON Stylus COLOR 440, 640, and 740 Appendix for LATIN for LATIN for ETT for EAI for RUSSIA for EUR,S.E.ASIA,OCEANIA,EKL,RUSSIA EXPLODED DIAGRAM FOR EPSON STYLUS COLOR 440 (1/3) REV.1.0 10001...
  • Page 185 EPSON Stylus COLOR 440, 640, and 740 Appendix EXPLODED DIAGRAM FOR EPSON STYLUS COLOR 440 (2/3) REV.1.0 10001...
  • Page 186 EPSON Stylus COLOR 440, 640, and 740 Appendix (506) (565) (501) 564 562 (505) 542 544 542 544 542 544 EXPLODED DIAGRAM FOR EPSON STYLUS COLOR 440 (3/3) REV.1.0 10001...
  • Page 187 EPSON Stylus COLOR 440, 640, and 740 Appendix for EUR.,S.E.ASIA,OCEANIA EKL,RUSSIA for USA for LATIN for LATIN for ETT for EAI for RUSSIA for EUR,S.E.ASIA,OCEANIA,EKL,RUSSIA EXPLODED DIAGRAM FOR EPSON STYLUS COLOR 640 (1/3) REV.1.0 10002...
  • Page 188 EPSON Stylus COLOR 440, 640, and 740 Appendix EXPLODED DIAGRAM FOR EPSON STYLUS COLOR 640 (2/3) REV.1.0 10002...
  • Page 189 EPSON Stylus COLOR 440, 640, and 740 Appendix (506) (565) (501) 564 562 (505) 542 544 542 544 542 544 EXPLODED DIAGRAM FOR EPSON STYLUS COLOR 640 (3/3) REV.1.0 10002...
  • Page 190 EPSON Stylus COLOR 440, 640, and 740 Appendix Table A-27. Parts List for the Stylus COLOR 440 and 640 Table A-27. Parts List for the Stylus COLOR 440 and 640 (continued) Part # Parts Price List Description Common Name Part #...
  • Page 191 EPSON Stylus COLOR 440, 640, and 740 Appendix Table A-27. Parts List for the Stylus COLOR 440 and 640 Table A-27. Parts List for the Stylus COLOR 440 and 640 (continued) (continued) Part # Parts Price List Description Common Name...
  • Page 192 EPSON Stylus COLOR 440, 640, and 740 Appendix Table A-27. Parts List for the Stylus COLOR 440 and 640 Table A-27. Parts List for the Stylus COLOR 440 and 640 (continued) (continued) Part # Parts Price List Description Common Name...
  • Page 193 EPSON Stylus COLOR 440, 640, and 740 Appendix Table A-27. Parts List for the Stylus COLOR 440 and 640 (continued) Part # Parts Price List Description Common Name Paper Guide, Lower Absorber, Waste Ink, Large Waste Ink Pad Tray, Absorber...
  • Page 194 EPSON Stylus COLOR 440, 640, and 740 Appendix for EAI, LATIN for LATIN for EAI for ETT For EUR,S.E.ASIA, OCEANIA,RUSSIA EXPLODED DIAGRAM FOR EPSON STYLUS COLOR 740 (1/3) Rev.01 10004...
  • Page 195 EPSON Stylus COLOR 440, 640, and 740 Appendix EXPLODED DIAGRAM FOR EPSON STYLUS COLOR 740 (2/3) Rev.01 10004...
  • Page 196 EPSON Stylus COLOR 440, 640, and 740 Appendix (506) (565) (501) 564 562 542 544 542 544 542 544 (505) EXPLODED DIAGRAM FOR EPSON STYLUS COLOR 740 (3/3) Rev.01 10004...
  • Page 197 EPSON Stylus COLOR 440, 640, and 740 Appendix Table A-28. Parts List for the Stylus COLOR 740 (continued) Table A-28. Parts List for the Stylus COLOR 740 Part # Parts Price List Description Common Name Part # Parts Price List Description...
  • Page 198 EPSON Stylus COLOR 440, 640, and 740 Appendix Table A-28. Parts List for the Stylus COLOR 740 (continued) Table A-28. Parts List for the Stylus COLOR 740 (continued) Part # Parts Price List Description Common Name Part # Parts Price List Description Common Name Spur Gear, 73.6...
  • Page 199 EPSON Stylus COLOR 440, 640, and 740 Appendix Table A-28. Parts List for the Stylus COLOR 740 (continued) Table A-28. Parts List for the Stylus COLOR 740 (continued) Part # Parts Price List Description Common Name Part # Parts Price List Description Common Name ×...
  • Page 200 EPSON Stylus COLOR 440, 640, and 740 Appendix Table A-28. Parts List for the Stylus COLOR 740 (continued) Part # Parts Price List Description Common Name Spacer, Tray Locking Plate (for Waste Ink Pad) Bushing, Fixing, Shaft, Left Paper Support, Sub, Upper Holder, Paper Support, Sub, Upper Torsion Spring, 0.29...
  • Page 201 EPSON Stylus COLOR 440, 640, and 740 Appendix Circuit Diagrams This section contains circuit diagrams for the following boards: C206PSB circuit diagram C206PSE circuit diagram C257PSB circuit diagram C257PSE circuit diagram C257PSK circuit diagram C206MAIN-B circuit diagram * C255MAIN circuit diagram...
  • Page 202 EPSON Stylus COLOR 440, 640, and 740 Appendix C206PSB 1/1...
  • Page 203 EPSON Stylus COLOR 440, 640, and 740 Appendix C206PSE 1/1...

This manual is also suitable for:

Stylus color 640Stylus color 740

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