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Epson ActionLaser 1600 Service Manual

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EPSON
Service Manual
TM
1600
ActionLaser
Epson America, Inc.
TM-AL1600

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  • Page 1 ® EPSON Service Manual 1600 ActionLaser Epson America, Inc. TM-AL1600...
  • Page 2 ActionLaser 1600 Service Manual R e v i s i o n L e v e l Revision Date 1st printing 6/3/94 ® EPSON Printed on Recycled Paper.
  • Page 3 If this equipment has more than one interface connector, do not leave the cables connected to unused interfaces. Changes or modifications not expressly approved by the manufacturer could void the user’s authority to operate the equipment. EPSON ActionLaser 1600 Service Manual...
  • Page 4 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 5 Phone: (506) 34-6666 Phone: (541) 394-2439 Fax: (506) 25-5709 Fax: (541) 322-4637 Epson Venezuela S.A. Epson Mexico S.A. De C.V. Caracas, Venezuela Mexico, D.F. Phone: (582) 241-0433 Phone: (525) 395-9897 Fax: (582) 241-6515 Fax: (525) 395-9499 EPSON ActionLaser 1600 Service Manual...

  • Page 6: Table Of Contents

    PWB-A Board ............1-49 EPSON ActionLaser 1600 Service Manual...
  • Page 7 Figure l-27. Lower Paper Cassette ....1-52 Figure l-28. Face-Up Output Tray ....1-53 EPSON ActionLaser 1600 Service Manual...
  • Page 8 Table 1-1. Options for the ActionLaser 1600......1-7 Paper Feed Methods .........1-8 Table 1-2.

  • Page 9: Printer Features 1

    Printer Features The ActionLaser 1600 is a non-impact page printer that combines a semi- conductor laser with electro-photographic technology. The printer is small and light, and features high-speed, high-resolution printing. Maintenance is very easy, as a result of various built-in diagnostic functions. The main features are: No ozone Printing speed —...

  • Page 10: Figure 1-1. Exterior View Of The Action Laser 1600

    EPSON Script mode and another mode SPL (Shared Printer Language) enables switching of the printer mode by command The figure below shows an exterior view of the ActionLaser 1600. Figure 1-1. Exterior View of the Action Laser 1600 EPSON ActionLaser 1600 Service Manual...

  • Page 11: Table 1-1. Options For The Actionlaser 1600

    Print Features Table 1-1 lists the optional units available for the ActionLaser 1600. Table 1-1. Options for the Action Laser 1600 EPSON ActionLaser 1600 Service Manual...

  • Page 12: Specifications

    1. lb. (ream weight) = 500 sheets of 17x 22 inch paper; 1 g/m = 0.2659763 lb. 2. Paper size range: width 3.63 to 8.5 inches (92 to 216 mm) length 5.85 to 14.0 inches (148.5 mm to 356 mm) EPSON ActionLaser 1600 Service Manual...

  • Page 13: Table 1-3. Paper Types

    Printer Features Table 1-3. Paper Types Table 1-4. Special Papers R: Reliable feeding and good image quality. P: Possible, but better avoided. Impossible. Figure 1-2. Printable Area EPSON ActionLaser 1600 Service Manual...

  • Page 14: Electrical Specifications

    S p e c i f i c a t i o n s MPBF (Mean Prints Between Failures): Over 25,000 sheets N o t e : MPBF indicates average number of pages printed before occurrence of problem requiring replacement or service. 1-10 EPSON ActionLaser 1600 Service Manual...

  • Page 15: Environmental Conditions For Operation

    10 to 95 % RH under extreme conditions (extremes allowable for up to 1/30 of storage term) Drop test: Clear to JIS Z0200-1987 Level 1 Vibration frequency 5 to 100 Hz and 100 to 5 Hz Vibration: Acceleration 3 directions directions 1-11 EPSON ActionLaser 1600 Service Manual...

  • Page 16: Environmental Conditions For Storage And Transportation (Excluding Imaging Cartridge)

    Temperature variations must be 18° F (10° C) /hour or less. 85 % RH over full storage term Humidity: 10 to 95 % RH under extreme conditions (Extremes are allowable for up to 1/30 of storage term) EPSON ActionLaser 1600 Service Manual 1-12...

  • Page 17: Physical Specifications

    EPSON GL/2 mode (LJ4-GL/2 mode and GL-like mode) FX (FX-870/l170, LX-100) emulation mode ® ESC/P2 (LQ-570/1070) mode EPSON GL/2 mode is similar to the GL/2 mode included in HP N o t e : ® LaserJet 4 emulation. Table 1-6 shows the differences between EPSON ®...

  • Page 18: Table 1-6. Differences Between Epson Gl/2 And Hplaserjet

    HP LaserJet 4 Emulation GL/2 Notes: EPSON GU2 mode has two operational modes: LJ4-GL/2 mode and a GL-like mode. LJ4-GL2 mode emulates the GU2 mode in the HP LaserJet 4 emulation. The user can print with software that supports the HP 7600 series plotter.
  • Page 19 Printer Features Table 1-7. Built-in Fonts (Con’t) EPSON ActionLaser 1600 Service Manual 1-15...
  • Page 20 Italian ECM94-1 Swedis2 ANSI ASCII French2 German Legal 8859-2 ISO Spanish PsMath 8859-9 ISO WiTurkish MsPublishing VeMath DeskTop Math-8 WiE.Europe PCTk437 Windows PsText IBM-US IBM-DN McText PCMultilingual VeInternational VeUS PiFont PCE.Europe Symbol WiAnsi Wingdings 1-16 EPSON ActionLaser 1600 Service Manual...
  • Page 21 FX Mode: 13 International Characters and 9 Code Tables SPAIN FRANCE JAPAN GERMANY NORWAY DENMARK2 DENMARK SPAIN2 SWEDEN LATIN AMERICA ITALY PCUSA (437) PCTurk2 (857) PCMultilingual (850) PCE.Europe (852) PCPortuguese (860) BpBRASCII PCCanFrench (863) BpAbicomp PCNordic (865) Italic EPSON ActionLaser 1600 Service Manual 1-17...

  • Page 22: Interface Specifications

    Printer Features Interface Specifications The ActionLaser 1600 is equipped with the following external interfaces: Parallel interface RS-232C/RS-422 interface Optional EPSONTalk interface for the Macintosh Optional Type B interface P a r a l l e l I n t e r f a c e...

  • Page 23: Table 1-8. Parallel Interface Pin Assignments

    Ž paper jam Ž in error state Ž off line — Same as for pins 19 to 30. — Not used. — Pulled up to +5 V through 1.0K-ohm resistance. SLCT IN — Uses reverse mode EPSON ActionLaser 1600 Service Manual 1-19...

  • Page 24: Reverse Mode

    Printer Features Reverse Mode In the reverse mode, the ActionLaser 1600 supports the IEEE-P1284 nibble mode. This mode allows the printer to inform the host computer of printer status, using EJL and PJL commands. IEEE-P1284 nibble mode System: P90-25027-1 (Amphenol) receptacle...

  • Page 25: Table 1-9. Parallel Interface Pin Assignments

    The same as for pins 19 to 30. — Not used. — — Pulled up to +5 V through 1.0K-ohm resistance. SLCT IN 1284Active: If this signal is set to HIGH, the printer is active P1284 (reverse mode). 1-21 EPSON ActionLaser 1600 Service Manual...
  • Page 26 Printer Features Figure 1-4 shows the parallel interface state switch diagram. Figure 1-4. Parallel Interface State Switch Diagram 1-22 EPSON ActionLaser 1600 Service Manual...
  • Page 27 This signal set to LOW during sending of data. This signal set to HIGH, if the extension request value was 04h. 3. HB DA: Host Busy Data Available HB DNA: Host Busy Data Not Available 1-23 EPSON ActionLaser 1600 Service Manual...
  • Page 28 The signal is set to HIGH, if the extension request value was 04 h. Idle = LOW The figure below shows the timing chart for an interrupt. Figure 1-8. Timing Chart for Interrupt The signal is set to HIGH, if the extension request value was 04h. Note: 1-24 EPSON ActionLaser 1600 Service Manual...

  • Page 29: Serial Interface

    Transfer speeds: 115200 bps Processed as missing data and replaced by an Errors: Overrun error: asterisk (*) Replaced by an asterisk (*) Parity error: Replaced by an asterisk (*) Framing error: Ignored Breaking character: 1-25 EPSON ActionLaser 1600 Service Manual...

  • Page 30: Table 1-10. Serial Interface Connector Pin Assignments

    HIGH level: when SD+ voltage is higher than SD voltage. LOW level: when SD+ voltage is less than SD voltage. Logic 0 is SPACE and logic 1 is MARK; MARK state must be maintained between transmitted character codes. EPSON ActionLaser 1600 Service Manual 1-26...

  • Page 31: Handshaking

    O p t i o n a l L o c a l T a l k I n t e r f a c e This printer can use the optional LocalTalk interface module. LocalTalk Type: Same as RS-422 signal level Signal level: 1-27 EPSON ActionLaser 1600 Service Manual...

  • Page 32: Table 1-11. Localtalk Connector Pin Assignments

    LOW level: when RD+ voltage is less than RD voltage. Logic 0 is SPACE and logic 1 is MARK; MARK state must be maintained between transmitted character codes. TXD+ OUT Refer to TXD — Not connected. RXD+ Refer to RXD. EPSON ActionLaser 1600 Service Manual 1-28...

  • Page 33: Operating Instructions

    (LCD), indicator lights, and buttons. Figure 1-9. Control Panel Display A 20-character (5 x 7 dot matrix) by l-row liquid crystal display (LCD) that indicates printer status. 1-29 EPSON ActionLaser 1600 Service Manual...

  • Page 34: Indicator Lights

    No printable data remains in the printer. OFF: The printer is processing. Flashing: Continue Flashes when an error is detected or a maintenance procedure is needed. An error message appears on the display at the same time. EPSON ActionLaser 1600 Service Manual 1-30...

  • Page 35: Buttons

    RESET LCD changes to RESET ALL (for about 5 seconds), and the printer begins a warm boot operation. The printer clears all RAM. 1-31 EPSON ActionLaser 1600 Service Manual...

  • Page 36: Selectype Functions

    (PS) ESCP2 FONT Courier, Prestige, Orator S, Roman-T, Saris-H PITCH 10 CPI, 12 CPI, 15 CPI, Prop CONDENSED On, Off T. MARGIN 0.40 to 1.50 Inch (steps of 0.05) TEXT 1 to (available) lines 1-32 EPSON ActionLaser 1600 Service Manual...
  • Page 37 PCNordic, PCTurk2, PC. E. Europe, BpBRASCll, BpAbicomp COUNTRY USA, France, Germany, UK, Denmark, Sweden, Italy, Spain1, Japan, Norway, Denmark2, Spain2, LatinAmerica AUTO CR ON, OFF AUTO LF ON, OFF ZERO CHAR 0,ø BIT IMAGE Dark, Light, Bar Code EPSON ActionLaser 1600 Service Manual 1-33...
  • Page 38 (PS&FX), (PS&ESCP2), (PS&GL2) (AUX) LJ4, FX, ESCP2, (PS), GL2, (PS&LJ4), (PS&FX), (PS&ESCP2), (PS&GL2) TRAY SIZE STD SIZE LT, HLT, LGL, GLT, GLG, EXE, F4, MON, C10, DL, C5, IB5, A4, A5, B5 (OPT SIZE) LT, A4 1-34 EPSON ActionLaser 1600 Service Manual...
  • Page 39 SERIAL SERIAL TYPE RS232C, RS422 WORD LENGTH 8, 7 BAUD RATE 9600, 19200, 38400, 57600, 115200, 300, 600, 1200, 2400, 4800 PARITY NONE, EVEN, ODD STOP BIT ON, OFF XON/XOFF ON, OFF ON, OFF 1-35 EPSON ActionLaser 1600 Service Manual...

  • Page 40: S E R Vice Mode

    Menu CONFIG LANGUAGE indicate language setting mode. Scroll through available options with buttons, and set the language with Enter. Available languages are: ENGLISH, FRANÇAIS, DEUTCH, ITALIANO, ESPAÑOL, SVENSKA, DANSK, NEDERL., SUOMI, PORTUGUÊS 1-36 EPSON ActionLaser 1600 Service Manual...

  • Page 41: Message Display

    RESET RESET TO SAVE SelecType was changed while Feed light was on. Press the RESET button to reset. Warming up WARMING UP Detected toner low TONER LOW Power down mode STANDBY Normal condition READY 1-37 EPSON ActionLaser 1600 Service Manual...

  • Page 42: Table 1-15. Error Messages

    If the printer displays RAM ERROR 1 or RAM ERROR 2: Note : RAM ERROR 1 indicates a problem with the SIMM inserted in SIMM socket CN8. RAM ERROR 2 indicates a problem with the SIMM inserted in SIMM socket CN9. 1-38 EPSON ActionLaser 1600 Service Manual...

  • Page 43: Warning Message

    Paper in the selected tray is different Press the CONTINUE button. CHECK PAPER SIZE from the paper size chosen when SIZE IGNORE is set to OFF. Insufficient memory has caused the Press the CONTINUE button IMAGE OPTIMUM printer to reduce print quality. 1-39 EPSON ActionLaser 1600 Service Manual...

  • Page 44: P R I Nter Sharing

    This printer has two methods of printer sharing, which are selected with the Port Fixed Mode Figure 1-10. Port Fixed Mode When the printer is in port fixed mode, only one interface port is active. Data from other ports is ignored. EPSON ActionLaser 1600 Service Manual...

  • Page 45: Auto Sense Mode

    Emulation Switch with SPL There are two SPLs that can be used to switch emulation functions. EJL: EPSON Job Language This is EPSON’s original language system. It allows you to skip among various destinations, as shown in Figure 1-12. 1-41...
  • Page 46 It is can switch between PostScript and other modes, as shown in figure below. Figure 1-13. Intelligent Emulation Switch 1-42 EPSON ActionLaser 1600 Service Manual...

  • Page 47: Bi Resolution Improvement Technology

    B i R e s o l u t i o n I m p r o v e m e n t T e c h n o l o g y The ActionLaser 1600 uses BiRITech (Bi Resolution Improvement Technology), which is designed to improve print quality at 600 DPI and 300 DPI.

  • Page 48: Optional Memory

    RAM installed. By installing RAM chip sets, you can increase the printer’s memory to a total of 64 MB, including the resident memory. EPSON supplies several types of memory options, or users can purchase other SIMMs from other vendors. Be sure the SIMM meets the requirements listed below.

  • Page 49: Main Components

    D r i v e U n i t I m a g i n g C a r t r i d g e H o u s i n g Figure 1-16. Component Layout EPSON ActionLaser 1600 Service Manual 1-45...
  • Page 50 16Kbit EEPROM (IC8) Custom ICs ASIC E05A91 (IC9) ASIC E05A92 (IC25) ASIC E05A93 (IC24) Others RS-232C interface driver/receiver ADM232 (IC28) RS-422 interface driver/receiver MC34050 (IC6) Reset IC M51953BFP (IC27) Figure 1-17. C125 Main Board EPSON ActionLaser 1600 Service Manual 1-46...
  • Page 51 O p t i o n a l L o c a l T a l k I n t e r f a c e M o d u l e The LocalTalk interface circuit board connects this printer to Apple Macintosh computers. Main Chips 85C30 (IC3) 26LS30 (IC1) 26LS32 (IC2) NJ U7660 (IC4) Figure 1-18. LocalTalk I/F Board EPSON ActionLaser 1600 Service Manual 1-47...

  • Page 52: Control Panel

    C o n t r o l P a n e l The control panel includes a 20-column x l-row LCD panel that displays error messages or printer operation status. Figure 1-19. Control Panel EPSON ActionLaser 1600 Service Manual 1-48...

  • Page 53: Pwb-A Board

    It converts the AC line voltage into +24 V and +5 VDC voltages. C A U T I O N Do not touch VR1E on PWB-E board. This volume is for factory setting only. Figure 1-21. B o a r d P W B - E 1-49 EPSON ActionLaser 1600 Service Manual...

  • Page 54: Pwb-F Board

    The laser beam generated by the laser diode is conducted to the OPC drum surface by the scanner mirror, as well as several other mirrors and lenses, to create a latent electro-photographic image on the drum. Figure 1-23. Optical Unit 1-50 EPSON ActionLaser 1600 Service Manual...

  • Page 55: Fusing Unit

    The drive unit consists of the main motor and a series of gears and clutches. It drives the paper transport rollers, OPC drum, sleeve roller, fising roller, and some other mechanisms. Figure 1-25. Drive Unit EPSON ActionLaser 1600 Service Manual 1-51...

  • Page 56: Imaging Cartridge

    F i g u r e 1 - 2 6 . I m a g i n g C a r t r i d g e Lower Paper Cassette The optional lower paper cassette allows you to feed up to an additional 250 sheets of A4 or letter-size paper into this printer. Figure 1-27. Lower Paper Cassette 1-52 EPSON ActionLaser 1600 Service Manual...

  • Page 57: Face-Up Output Tray

    The face-up feeding method reduces curling, and the tray catches the paper at the paper ejection area at the top back of the printer. Figure 1-28. Face-Up Output Tray EPSON ActionLaser 1600 Service Manual 1-53...
  • Page 58 Printer Features 1-54 EPSON ActionLaser 1600 Service Manual...
  • Page 59 RS-422 Circuit ......2-33 LocalTalk Circuit ...2-33 Optional Type-B Interface ...2-34 Video Interface ......2-34 EPSON ActionLaser 1600 Service Manual...

  • Page 60: Figure S

    LocalTalk Circuit ........2-33 Figure 2-44. EPSON ActionLaser 1600 Service Manual...
  • Page 61 Principles of Operation T a b l e s Table 2-l. Gears Rollers ...2-16 Table 2-2. Functions of the Major Components of the C125 MAIN Board 2-28 EPSON ActionLaser 1600 Service Manual...
  • Page 62 Principles of Operation EPSON ActionLaser 1600 Service Manual...

  • Page 63: Optical Unit

    26. Paper take-up roller (for option) Face-up tray (option) 27. Paper cassette (for option) Face-up exit roller 28. Paper empty sensor (PC4) (for option) Fusing separator 29. Paper empty sensor (PC1) Paper exit sensor (PC3) EPSON ActionLaser 1600 Service Manual...

  • Page 64: Print Process

    P r i n t P r o c e s s This section describes the print process from paper feeding to paper exit. Figure 2-2 shows a diagram of the print process. Figure 2-2. Diagram of the Print Process EPSON ActionLaser 1600 Service Manual...

  • Page 65: Paper Feeding

    The paper take-up roller stops after one rotation. Unlike the EPL-7000/7500 and EPL-8000, which have a synchronizing roller, the ActionLaser 1600 has no synchronizing roller installed. The timing to align the leading edge of the page with image is detected by the paper take-up sensor.

  • Page 66: Multi-Purpose Tray (Standard Tray)

    At this time, the depression cam attached to the paper take-up roller depresses the paper lift-up plate to prevent the feeding of a second sheet. Figure 2-3. Paper Feeding from the Multi-purpose Tray EPSON ActionLaser 1600 Service Manual...

  • Page 67: Lower Paper Cassette

    A4 paper.) The driving force for paper feeding and transport is from the transmission gear. All electrical controls are performed on the printer side through the coupling connector. Figure 2-4. Paper Feeding from the Lower Cassette EPSON ActionLaser 1600 Service Manual...

  • Page 68: Drum Charge

    This method also allows the drum to be charged at a low voltage, because a direct electric load is applied to the PC drum. Figure 2-5. Drum Charge EPSON ActionLaser 1600 Service Manual 2-10...

  • Page 69: Laser Exposure

    PC drum and controls the development with the developing bias voltage. No positivly charged toner is transported, and the doctor blade is charged to prevent printing from having a foggy background. Figure 2-7. Development EPSON ActionLaser 1600 Service Manual 2-11...

  • Page 70: Drum Cleaning

    PC drum. A reverse bias voltage is applied so that the positive toner is not transferred onto the image transfer roller. (The drum charge bias voltage is used.) Figure 2-8. Image Transfer 2-12 EPSON ActionLaser 1600 Service Manual...

  • Page 71: Fusing

    After power is turned on, the heater lamp lights up until the temperature of the upper fising roller reaches 165°C (329°F). After warm up, the mechanical control board controls the ON/OFF operation of the heater lamp, based on the TH1 signals from the thermistor. Figure 2-9. Fusing 2-13 EPSON ActionLaser 1600 Service Manual...

  • Page 72: Paper Exit

    This section describes engine control, the power supply board, and the high voltage supply board. The engine is controlled by engine controller board (PWB-A board). Figure 2-10 shows an engine controller connection diagram. Figure 2-10. Engine Controller Connection Diagram EPSON ActionLaser 1600 Service Manual 2-14...

  • Page 73: Main Motor Functions And Control

    D r i v e S e c t i o n D r i v e S e c t i o n D r i v e ( O p t i o n ) EPSON ActionLaser 1600 Service Manual 2-15...
  • Page 74 IC. This IC drives the main motor (M1) on the engine controller The main motor (Ml) is stopped when the CPU (IC1A) board (PWB-A) outputs TdA and TdB signals. Figure 2-17. Main Motor Drive Circuit EPSON ActionLaser 1600 Service Manual 2-16...

  • Page 75: Paper Take-Up Sensor And Paper Exit Sensor

    (Refer to the following timing chart.) Figure 2-18. Paper Take-up Sensor and P a p e r E x i t S e n s o r O n / O f f T i m i n g 2-17 EPSON ActionLaser 1600 Service Manual...

  • Page 76: Fuser Control

    The fuser temperature is detected by the thermistor. Based on the TH1 signals from the thermistor, the engine controller board (PWB-A) controls the fusing temperature (165° C, 329° F) using the FUSER LAMP signal. Figure 2-19. Fuser Control Circuit 2-18 EPSON ActionLaser 1600 Service Manual...

  • Page 77: Scanner Mirror Motor Control

    Scanner Mirror Motor Control Figure 2-21 is the scanner mirror motor (M2) control circuit. The scanner mirror motor is driven while the scanner motor receives the SCANNER MIRROR MOTOR (M2:ON) signal. Figure 2-21. Scanner Motor Control Circuit 2-19 EPSON ActionLaser 1600 Service Manual...

  • Page 78: Laser Diode Drive

    (LOW), the L DATA signal is also active. The VIDEO signal is an image signal sent from the video controller board (C125 MAIN board). The FORCED LASER DIODE ON signal is a laser emission signal to apply the laser beam to the SOS sensor. 2-20 EPSON ActionLaser 1600 Service Manual...
  • Page 79 (M2) turns on. At this time, laser emission power is adjusted. LDVR1 and LDVR2 are the laser emission power adjust signals; they are analog signals. LDVR1 is tuning; LDVR2 is fine tuning. Figure 2-25. Laser Emission Power Adjustment Timing 2-21 EPSON ActionLaser 1600 Service Manual...

  • Page 80: Bias Voltages And Laser Drive Timing

    The DB:CNT (HV-B.VR) signal is an analog signal for developing bias voltage control. This signal controls the bias voltage level (–300V to --375K VDC) using analog data. The image density is controlled by the developing bias voltage level. Figure 2-27. High-Voltage Supply Block Diagram 2-22 EPSON ActionLaser 1600 Service Manual...
  • Page 81 Figure 2-28 is the print process, and Figure 2-29 is the power on sequence. During the power on sequence (initialization), the printer detects mechanical errors. Figure 2-28. Print Process Figure 2-29. Power On Sequence 2-23 EPSON ActionLaser 1600 Service Manual...
  • Page 82 Figure 2-30. Print Sequence (Start) Figure 2-31 is the end of the print sequence. The printer stops the main motor (Ml) from rotating, when the paper exit sensor turns off after 2.53 seconds. Figure 2-31. Print Sequence (End) 2-24 EPSON ActionLaser 1600 Service Manual...

  • Page 83: Fan Motor-Control

    (M2) drive, fan motor (M3) drive, and solenoid drive. For safety protection, the +24 VDC line is cut when the interlock switch (case open switch) is off. Figure 2-34. Power Supply Circuit Block Diagram 2-25 EPSON ActionLaser 1600 Service Manual...
  • Page 84 The control panel is connected to the engine controller board (PWB-A), but is controlled by the C125 MAIN board, which sends the signals for the control panel through the engine controller board. Figure 2-35. Video Controller Block Diagram EPSON ActionLaser 1600 Service Manual 2-26...

  • Page 85: C 1 2 5 M A I N B O A R D O P E R A T I O N

    SPARKlite, 17.6 MHz, 32-bit bus, MB86930 RISC CPU, the standard cells (gate arrays) developed for this printer, DRAMs, ROMs, and a 16 K-bit EEPROM. Figure 2-36. C125 MAIN Board Block Diagram EPSON ActionLaser 1600 Service Manual 2-27...
  • Page 86 These DRAMs are used as the CPU’s working area: DRAM 19, 20 input buffer, image buffer, etc. ADM232 IC28 This IC changes the RS-232C signal level. This IC changes the RS-422 signal level. MC34050 EPSON ActionLaser 1600 Service Manual 2-28...
  • Page 87 This is controlled by the E05A92, which synchronizes and transmits the temporary buffer’s data to the engine controller board. Then the E05A92 manages BiRITech and EMGTech. Figure 2-37. Data Flow Diagram EPSON ActionLaser 1600 Service Manual 2-29...

  • Page 88: Reset Circuit

    BE0, BE1, BE2, and BE3 signals (byte enables) to the ASIC E05A91. The ASIC E05A91 uses these signals to generate the RD (read strobe) signal, WR (write strobe) signal, READY signal. Figure 2-39. Bus Control Circuit EPSON ActionLaser 1600 Service Manual 2-30...

  • Page 89: Interrupt Control

    (CN9) are the optional SIMM sockets, which can use 1, 2, 4, 8, 16, 32 MB, 32-bit bus SIMMs. The DRAMs (including optional SIMMs) are managed by ASIC E05A91. The E05A91 outputs MA0-10 (memory address), RAS/CAS, and WE signals. Figure 2-40. DRAM Management EPSON ActionLaser 1600 Service Manual 2-31...

  • Page 90: Parallel Interface Circuit

    (0 V or +5 V) or from the TTL signal level to the RS-232C signal level This IC converts +5 VDC to +12 VDC and –12 VDC. The E05A93 standard cell changes serial (RS-232C) data to parallel data. Figure 2-42. RS-232C Circuit 2-32 EPSON ActionLaser 1600 Service Manual...

  • Page 91: Circuit

    It is controlled by the E05A93 (IC24) on C125 MAIN board. The 26LS30 (IC1) and 26LS32 (IC2) are ICS used to change signal levels from the TTL signal level to LocalTalk signal level (compatible with RS-422 signal level). Figure 2-44. LocalTalk Circuit 2-33 EPSON ActionLaser 1600 Service Manual...

  • Page 92: Optional Type-B Interface

    Principles of Operation Optional Type-B Interface This printer supports an EPSON Type-B optional interface, which is controlled by the INH and BIF signals from the E05A93 (IC24). Video Interface ASIC E05A92 maps the SRAM into a memory space different from the system memory.
  • Page 93 High-Voltage Supply Board (PWB-F) Removal ....3-19 Main Motor (Ml) Removal ...3-20 Motor (M3) Removal ...3-21 Fusing Unit Removal ...3-22 Fusing Unit Disassembly ...3-23 Image Transfer Roller Removal ...3-25 Paper Take-Up Roller Removal ...3-26 EPSON ActionLaser 1600 Service Manual...
  • Page 94 Table 3-2. Abbreviations Used for Screws ........3-4 Table 3-3. Checks after Repair ...3-6 EPSON ActionLaser 1600 Service Manual...

  • Page 95: Precautions For Disassembly And Assembly

    Never open the upper unit until the main motor stops completely. Otherwise, the gears may be damaged. When transporting the printer, remove the imaging cartridge from the printer. When transporting the printer a long distance, pack up the printer using the original packing material. EPSON ActionLaser 1600 Service Manual...

  • Page 96: Tools

    Cross-recessed Pan head with Outside toothed lock washer CP(S)(P1) Cross-recessed Pan head with Spring lock washer and 1 Plain washer Cross-recessed Cup head Bind Slotted Cross-recessed B-tight SCB(S)(P1) Slotted Cross-recessed Bind with Spring washer and 1 Plain washer EPSON ActionLaser 1600 Service Manual...
  • Page 97 Disassembly and Assembly EPSON ActionLaser 1600 Service Manual...

  • Page 98: Service Checks After Repair

    Is the roller in the fusing unit clean? Is the outer surface of the printer clean? Packing Has the imaging cartridge been removed from the printer? Is the unit packed securely? Are accessories packed also? EPSON ActionLaser 1600 Service Manual...

  • Page 99: Procedures For Disassembly And Assembly

    Procedures for Disassembly and Assembly This section describes and illustrates the procedures for removing and disassembling the components of the ActionLaser 1600. Cleaning is described in Chapter 6. Assembly procedures are not described, except for special notes where necessary, because assembly can be done by performing disassembly in reverse.
  • Page 100 Disassembly and Assembly 5. Grasp the board with both hands and pull it out of its slot Figure 3-3. Pulling the Tab Figure 3-4. Removing the Video Controller Board EPSON ActionLaser 1600 Service Manual...

  • Page 101: Localtalk I/Fboard Removal

    2. Remove 2 CP (M3 x 5) screws from the LocalTalk module. 3. Remove the LocalTalk module from the video controller board (C125 MAIN board). Figure 3-5. Removing the 2 Screws Figure 3-6. Removing the LocalTalk Module EPSON ActionLaser 1600 Service Manual...

  • Page 102: Control Panel Removal

    2. Remove 1 CC (M3 x 8) screw from the control panel. 3. Lift the control panel, and then remove connector CN3 on the engine controller board (PWB-A). 4. Remove the control panel. Figure 3-7. Removing the Control Panel 3-10 EPSON ActionLaser 1600 Service Manual...

  • Page 103: Housing Removal

    Loosen 1 CCB (M3 x 8) screw, remove 2 CC (M3 x 8) screws, and remove the right cover. Remove 3 CC (M3 x 8) screws and the left cover. Remove the top cover. 3-11 EPSON ActionLaser 1600 Service Manual...
  • Page 104 Disassembly and Assembly Figure 3-8. Removing the Housing 3-12 EPSON ActionLaser 1600 Service Manual...

  • Page 105: Rear Frame Removal

    7. Remove 6 CP(0) (M3 x 6) screws and lift the rear frame. 8. Disconnect connector CN1 on the power supply board (PWB-E) and connector CN2 on the high-voltage supply board (PWB-F). Figure 3-9. Removing the Rear Frame EPSON ActionLaser 1600 Service Manual 3-13...

  • Page 106: Disassembling The Engine

    CN2, CN6, CN7, CN9, CN8, CN5, and CN4 on the engine controller board (PWB-A). Remove 4 CC (M3 x 6) screws on the engine controller board (PWB-A). Remove the engine controller board (PWB-A). Figure 3-10. Removing the Engine Controller Board (PWB-A) 3-14 EPSON ActionLaser 1600 Service Manual...

  • Page 107: P O W E R S U P P L Y U N I T ( P W B - E ) R E M O V A

    (PWB-E) and CN8 on engine controller board (PWB-A). 6. Disconnect the connectors for the interlock switch 7. Remove 2 CP(0) (M3 x 6) screws, and remove the power supply unit Figure 3-11. Removing the Power Supply Unit EPSON ActionLaser 1600 Service Manual 3-15...

  • Page 108: Interlock Switch Removal

    4. Remove the right cover. (Refer to pages 3-11 and 3-12.) 5. Remove the power supply unit. (Refer to page 3-15.) Remove 2 CC (M3 x 16) screws for the interlock switch, and remove interlock switch. Figure 3-12. Removing the Interlock Switch EPSON ActionLaser 1600 Service Manual 3-16...

  • Page 109: Optical Unit Removal

    Disconnect connector CN5 on the engine controller board (PWB-A). Remove 2 CC (M3 x 6) screws and 1 CC (M3 x 12) screw, and remove the optical unit. Figure 3-13. Removing the Optical Unit 3-17 EPSON ActionLaser 1600 Service Manual...

  • Page 110: Paper Empty Sensor Removal

    5. Remove the power supply unit. (Refer to page 3-15.) 6. Remove the optical unit. (Refer to page 3-17.) 7. Remove the paper empty sensor 8. Disconnect the connector for the paper empty sensor. Figure 3-14. Removing the Paper Empty Sensor EPSON ActionLaser 1600 Service Manual 3-18...

  • Page 111: High-Voltage Supply Board (Pwb-F) Removal

    Disconnect connectors CN1, CN3, the red wire terminal, and the black wire terminal on the high-voltage supply board (PWB-F). Remove 3 CP (M3 x 8) screws on the high-voltage supply board, and remove the high-voltage supply board (PWB-F) Figure 3-15. Removing the High-Voltage Supply Board EPSON ActionLaser 1600 Service Manual 3-19...

  • Page 112: Main Motor (Ml) Removal

    6. Remove the rear frame. (Refer to page 3-13.) 7. Remove 3 CP(S)(P1) (M3 x 6) screws for main motor (Ml). Lift main motor (Ml), and disconnect the connector for main motor (Ml). Figure 3-16. Removing the Main Motor EPSON ActionLaser 1600 Service Manual 3-20...

  • Page 113: Fan Motor (M3) Removal

    5. Remove the top cover. (Refer to pages 3-11 and 3-12.) 6. Remove the rear frame. (Refer to page 3-13.) 7. Remove 2 CCB (M3 x 8) screws, and remove the fan motor (M3) Figure 3-17. Removing the Fan Motor 3-21 EPSON ActionLaser 1600 Service Manual...

  • Page 114: Fusing Unit Removal

    CN4 on the power supply board (PWB-E). Remove 2 CP(O) (M3 x 6) screws on the fusing unit, and remove the fusing unit. Figure 3-18. Removing the Fusing Unit 3-22 EPSON ActionLaser 1600 Service Manual...

  • Page 115: Fusing Unit Disassembly

    Do not touch the class surface of the lamn with vour bare hands. Remove 2 CC (M3 x 6) screws on the heater lamp support plate, and remove the heater lamp support plate. Remove the heater lamp. Figure 3-19. Disassembling the Fusing Unit 1 EPSON ActionLaser 1600 Service Manual 3-23...
  • Page 116 Remove 2 springs and 2 bushings on the lower fusing roller, and remove the lower fising roller. Remove 2 C-rings and 2 bushings on the upper fusing roller, and remove the upper fusing roller. Figure 3-20. Disassembling the Fusing Unit 2 EPSON ActionLaser 1600 Service Manual 3-24...

  • Page 117: Image Transfer Roller Removal

    Slide the image transfer assembly to the left, lift up the right side, and remove the image transfer assembly. Remove the image transfer roller. Figure 3-21. Removing the Image Transfer Assembly Figure 3-22. Removing the Image Transfer Roller EPSON ActionLaser 1600 Service Manual 3-25...

  • Page 118: Paper Take-Up Roller Removal

    10. Remove 2 CC (M3 x 8) screws on the paper take-up assembly. 11. Slide the paper take-up assembly to the right, lift the left side up, and remove the paper take-up assembly. Figure 3-23. Removing the Paper Take-Up Assembly 3-26 EPSON ActionLaser 1600 Service Manual...
  • Page 119 Remove 1 E-ring on the paper take-up clutch, and remove the paper take-up clutch Remove 2 E-rings and left bushings on the paper take-up roller shaft Remove the paper take-up roller. Figure 3-24. Removing the Paper Take-Up Roller EPSON ActionLaser 1600 Service Manual 3-27...
  • Page 120 Disassembly and Assembly 3-28 EPSON ActionLaser 1600 Service Manual...
  • Page 121 Figure 4-2. Opening the Upper Unit and Paper Cover and Removing 1 Screw ..4-4 Figure 4-3. Holding the Control Panel and Adjusting VR1A..4-4 Figure 4-4. Closing the Paper Cover and the Upper Unit..EPSON ActionLaser 1600 Service Manual...
  • Page 122 Adjustments EPSON ActionLaser 1600 Service Manual...
  • Page 123 Adjustments This section describes the adjustment procedures for the ActionLaser 1600. These adjustments must be performed after every servicing operation, especially when any component or part is replaced. Print Position Adjustment You adjust the vertical print position on a sheet of paper by turning the image synchronizing volume control on the engine controller board (PWB-A).
  • Page 124 (VR1A) on the engine controller board (PWB-A) so that the vertical gap from the top edge of the paper to the print position of the horizontal line becomes 0.56 inches (14.3 mm) for ActionLaser 1600. Turn VR1A clockwise to decrease the print position gap.
  • Page 125 8. Repeat steps 3 to 7 until the print position is 0.56 inches (14.3 mm). 9. Reattach the control panel, securing it with the 1 screw, close the paper cover, and close the upper unit. EPSON ActionLaser 1600 Service Manual...
  • Page 126 Table 5-33. The LCD Displays SERVICE REQ. C1200 or C1210 ... . 5-15 Table 5-34. The LCD Displays SERVICE REQ. C1300 ..... 5-15 EPSON ActionLaser 1600 Service Manual...
  • Page 127 Table 5-35. The LCD Displays SERVICE REQ. C1310 ..... 5-15 Table 5-36. Displays SERVICE REQ. C1320.. 5-15 Table 5-37. The LCD Displays Another SERVICE REQ. Error..5-15 Table 5-38. Print Quality Anomalies ...5-16 EPSON ActionLaser 1600 Service Manual...
  • Page 128 Troubleshooting 5 The ActionLaser 1600 has a sophisticated, built-in, self-diagnostic function that reduces troubleshooting time by identifying failed parts or components. This self-diagnostic test overcomes troubleshooting problems for page printers, in which even a trivial failure can result in a serious print quality problem.
  • Page 129 #F606 1015058 Troubleshooting This section describes troubleshooting abnormal operations and print quality problems. It describes how to detect malfunctions and determine the cause, and it suggests what actions to take for various types of malfunctions. EPSON ActionLaser 1600 Service Manual...
  • Page 130 The LCD displays SERVICE REQ. C1150. 5-28 SERVICE REQ. C1160 The LCD displays SERVICE REQ. C1160. 5-29 SERVICE REQ. C1170 The LCD displays SERVICE REQ. C1170. 5-30 SERVICE REQ. C1180 The LCD displays SERVICE REQ. C1180. 5-31 EPSON ActionLaser 1600 Service Manual...

  • Page 131: Figure L-20. Pwb-A Board

    If you change the C125 MAIN Replace the C125 (C125 MAIN board) may board, does the printer start MAIN board. be dead. the RAM check? The control panel may be 2 — Replace the dead. control panel. EPSON ActionLaser 1600 Service Manual...
  • Page 132 The cartridge may be bad. Does this printer Replace the recognize another, legal cartridge. cartridge? — The C125 MAIN board may — Replace the C125 be dead. MAIN board. EPSON ActionLaser 1600 Service Manual...
  • Page 133 1 and 2 on the disconnected cable side of the connector using a multimeter. Is the resistance approximately 220 ohms? EPSON ActionLaser 1600 Service Manual...
  • Page 134 The paper exit sensor may — be bad. — Replace it. The paper take-up sensor — may be bad. — — Replace it. The PWB-A board may be bad. — Replace it. The PWB-F board may be — bad. EPSON ActionLaser 1600 Service Manual...
  • Page 135 The PWB-A board may be Does the heater lamp Replace the dead. remain lit up until an error PWB-A board. occurs? — The PWB-E board may be — Replace the dead. PWB-E board. 5-10 EPSON ActionLaser 1600 Service Manual...
  • Page 136 Troubleshooting Table 5-16. The LCD Displays SERVICE REQ. E0004 Table 5-17. LCD Displays SERVICE REQ. E0005 EPSON ActionLaser 1600 Service Manual 5-11...
  • Page 137 Table 5-18. The LCD Displays SERVICE REQ. E0006 Table 5-19. The LCD Displays SERVICE REQ. E0009 Table 5-20. The LCD Displays SERVICE REQ. E0014 Table 5-21. The LCD Displays SERVICE REQ. C0003 Table 5-22. The LCD Displays SERVICE REQ. C0007 EPSON ActionLaser 1600 Service Manual 5-12...
  • Page 138 Table 5-23. The LCD Displays SERVICE REQ. C1000 Table 5-24 The LCD Displays SERVICE REQ. C1110 Table 5-25. The LCD Displays SERVICE REQ. C1120 The LCD Displays SERVICE REQ. C1130 Table 5-26. Table 5-27. The LCD Displays SERVICE REQ. C1140 EPSON ActionLaser 1600 Service Manual 5-13...
  • Page 139 Table 5-28. The LCD Displays SERVICE REQ. C1150 Table 5-29. The LCD Displays Service REQ. C1160 Table 5-30. The LCD Displays SERVICE REQ. C1170 Table 5-31. The LCD Displays SERVICE REQ. C1180 Table 5-32. The LCD Displays SERVICE REQ. C1190 5-14 EPSON ActionLaser 1600 Service Manual...
  • Page 140 P r i n t Q u a l i t y A n o m a l i e s This section describes how isolate print quality problems from the possible causes. Table 5-38. Print Quality Anomalies EPSON ActionLaser 1600 Service Manual 5-16...
  • Page 141 Troubleshooting Table 5-38. Print Quality Anomalies (cont.) 5-17 EPSON ActionLaser 1600 Service Manual...
  • Page 142 Troubleshooting Table 5-38. Print Quality Anomalies (cont.) EPSON ActionLaser 1600 Service Manual 5-18...
  • Page 143 Troubleshooting Table 5-38. Print Quality Anomalies (cont.) 5-19 EPSON ActionLaser 1600 Service Manual...
  • Page 144 ..6-5 Table 6-2. Cleaning Parts and Procedures ......6-6 EPSON ActionLaser 1600 Service Manual...
  • Page 145 Maintenance EPSON ActionLaser 1600 Service Manual...

  • Page 146: User Maintenance

    M a i n t e n a n c e The ActionLaser 1600 is a page printer that uses an electrophotographic printing method. Unlike with most impact or ink-jet printers, the key components in the electrophotographic process are integrated into an expendable cartridge (the imaging cartridge).

  • Page 147: Replacement Of Consumables

    Insert the imaging cartridge into the printer by placing the pins on each side of the cartridge into the grooves inside the printer. Slide it gently into the opening until it stops. Close the upper unit. EPSON ActionLaser 1600 Service Manual...

  • Page 148: Service Maintenance

    The service interval listed above is only a reference value. You do not need to perform service maintenance exactly at this time. Cleaning Some parts of this printer require regular cleaning. Clean each part using the specified method and tools. (Refer to Chapter 3 for disassembly procedure s.) EPSON ActionLaser 1600 Service Manual...
  • Page 149 Maintenance Table 6-2. Cleaning Parts and Procedures EPSON ActionLaser 1600 Service Manual...
  • Page 150 Table A-13. CN9 Pin Assignments ..... . . A-16 Table A-14. CNll Pin Assignments ..... . . A-16 EPSON ActionLaser 1600 Service Manual...
  • Page 151 ....Assignments A-17 Table A-17....Assignments A-17 Table A-18. EPSON ActionLaser 1600 Service Manual...

  • Page 152: Connector Pin Assignments

    Table A-1 gives the size and a description of each connector. Figure A-1. Cable Connections for the V i d e o C o n t r o l l e r S e c t i o n EPSON ActionLaser 1600 Service Manual...
  • Page 154 Appendix A Table A-1. Board Connector Summary EPSON ActionLaser 1600 Service Manual...
  • Page 155 V i d e o C o n t r o l l e r ( C 1 2 5 M A I N ) B o a r d Table A-2. CN3 Pin Assignments EPSON ActionLaser 1600 Service Manual...
  • Page 156 Appendix A Table A-2. CN3 Pin Assignment (cont.) EPSON ActionLaser 1600 Service Manual...
  • Page 157 Appendix A Table A-2. CN3 Pin Assignments (cont.) EPSON ActionLaser 1600 Service Manual...
  • Page 158 Appendix A Table A-3. CN4 Pin Assignments (cont.) Table A-4. CN5 Pin Assignments EPSON ActionLaser 1600 Service Manual...
  • Page 159 Appendix A Table A-4. CN5 Pin Assignments (Cont.) A-10 EPSON ActionLaser 1600 Service Manual...
  • Page 160 Appendix A Table A-5. CN6 Pin Assignments Table A-6. CN7 Pin Assignments A-11 EPSON ActionLaser 1600 Service Manual...
  • Page 161 Appendix A Table A-6. CN7 Pin Assignments (cont.) Table A-7. CN8,9 Pin Assignments EPSON ActionLaser 1600 Service Manual A-12...
  • Page 162 Appendix A Table A-7. CN8,9 Pin Assignments (cont.) EPSON ActionLaser 1600 Service Manual A-13...
  • Page 163 E n g i n e C o n t r o l l e r B o a r d ( P W B - A B o a r d ) Table A-8. CN4 Pin Assignments Table A-9. CN5 Pin Assignments A-14 EPSON ActionLaser 1600 Service Manual...
  • Page 164 Appendix A Table A-10. CN6 Pin Assignments Table A-11. CN7 Pin Assignments Table A-12. CN8 Pin Assignments (Also CN3 on PWB-E Board) EPSON ActionLaser 1600 Service Manual A-15...
  • Page 165 P o w e r S u p p l y B o a r d ( P W B - E B o a r d ) Table A-15. CN2 Pin Assignments Table A-16. CN4 Pin Assignments EPSON ActionLaser 1600 Service Manual A-16...
  • Page 166 H i g h - V o l t a g e S u p p l y B o a r d ( P W B - F B o a r d ) Table A-17. CN2 Pin Assignments Table A-18. CN3 Pin Assignments A - 1 7 EPSON ActionLaser 1600 Service Manual...
  • Page 167 Appendix A A-18 EPSON ActionLaser 1600 Service Manual...

  • Page 168: Circuit Diagrams

    Appendix A Circuit Diagrams Figure A-3. C125 MAIN Board Circuit Diagram A-19 EPSON ActionLaser 1600 Service Manual...
  • Page 169 Appendix A A-20 EPSON ActionLaser 1600 Service Manual...
  • Page 175 Appendix A Figure A-9. C125 MAIN Board Component Layout ( R e a r S i d e ) A-26 EPSON ActionLaser 1600 Service Manual...

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