Page 1: Service Manual
EPSON TERMINAL PRINTER EPL-9000 SERVICE MANUAL EPSON...
Page 2 All efforts have been made toensuretheaccuracyof the contents of this manual. However, should any errors be detected, SEIKO EPSON would greatly appreciate being informed of them. The above notwithstanding SEIKO EPSON can assume no responsibility for any errors in this manual or the consequence thereof.
Page 3 THE POWER SUPPLY CABLE MUST BE CONNECTED, USE EXTREME CAUTION IN WORKING ON POWER SUPPLY AND OTHER ELECTRONIC COMPONENTS. WARNING REPAIRS ON EPSON PRODUCT SHOULD BE PERFORMED ONLY BY AN EPSON CERTIFIED REPAIR TECHNICIAN. MAKE CERTAIN THAT THE SOURCE VOLTAGE IS THE SAME AS THE RATED VOLT- AGE, LISTED ON THE SEIUAL NUMBER/RATING PLATE.
Page 4: Safety Information
SAFETY INFORMATION ‘lhis printer is a page printer which operates by means of a laser. There is no possibility of danger from the laser, provided the printer is operated accordrng to the instructions in this manual provided. Since radiation emitted by the laser is completely confined within protective housings, the laser beam cannot escape from the machine during any phase of user operation.
Page 5 ADVARSEL Dersom apparatet brukes pa annen rn&e enn spesifisert i denne bruksan- visning, kan bmkeren utsettes for unsynlig laserstn!ding som overskrider grensen for laser klasse 1. Dette er en halvleder laser. Maksimal effeckt til Iaserdiode er 5 mW og brd- gelengde er 780 nm.
Page 6 [Label inside printer] The following laser safety label will be attached inside the printer as shown below. For Danmark, finland, Swadan, and Norway 7 * ~~~~~~ -+f-~* * rkll~t: Qtf ~ f. .Rf.hl: ~1 4 i 9-07 ~ t i$lstm+nkils!! +l=mvctm WE? tttit~: t.
Page 7 Includes a step-by-step guide for product disassembly and assembly. CHAPTER 4. ADJUSTMENTS Includes a step-by-step guide for adjustment. CHAPTER 5. TROUBLESHOOTING Provides Epson-approved techniques for adjustment. CHAPTER 6. MAINTENANCE Describes preventive maintenance techniques to service the equipment. APPENDIX Describes connector pin assignments, circuit diagrams, circuit board component layout.
Page 8 REVISION SHEET Revision Isaue Date Revision Page issue Rev. A Augusl 5, 1994 :’ ..c“ , , ..“ ~..- - vii -...
Page 9 TABLE OF CONTENTS CHAPTER 1. GENERAL DESCRIPTION OPERATING PRINCIPLES CHAPTER 2. DISASSEMBLY AND ASSEMBLY CHAPTER 3. ADJUSTMENTS CHAPTER 4. TROUBLESHOOTING CHAPTER 5. MAINTENANCE CHAPTER 6. APPENDIX Vlll...
Page 10: Table Of Contents
Chapter 1 General Description Table of Contents FEATURES 1.2 SPECIFICATIONS 1.2.1 Basic Specifications......... 1-3 1.2.2 Electrical Specifications.
Page 11 Table l-5. Electrical Specifications ........1-5 between EPSON GU2 and GIJ2 in the HP LaserJet Table 1-6.
Page 12: Features
600 dpi and 300 dpi printing. Optional EPSONScript Level 2 (PostScript compatible) module EPSON Micro Gray Technology (EMGTech), which is availabie when using EPSONScript Level 2 mode, refines gray scale printing to be comparable to printing on a 12~dpi printer Small and low-cost optional LocalTalk...
Page 13: Table 1-1, Options For Epl-9000
EPL-~ Service Mhnual General Description Table 1-1 lists the optional units available for the EPL-9(XXI. Table 1-1. Options for EPL-9000 Machine Type Description Cat. No. EPL-9000 I Supports EPSONScr@ Level 2 mode (PostSc@ X3209* EPSONScript Level 2 Module Level 2 compatitde) fonts and commands —...
Page 14: Specifications
General Description EPL-9000 Service Manual 1.2 SPECIFICATIONS This section provides statistical data for the EPL-9000. Basic Specifications 1.2.1 Printing method: Laser beam scanning and dry electro-photography Resolution: 600/300 dpi Printing speed: 8 ppm (letter/A4), 5 ppm (B4), 4.3 ppm (A3) by cassette feed 18.9 seconds (A4 cassette feed) First printing time: 19.1 seconds (Letter cassette feed)
Page 15: Table 1-3. Paper Types
“ ManuaJ Genersl L)eswiption EPL-$tX# ~ See Table 1-3. Paper types: Table 1-3. Paper Types Xerox@ 4024 DP paper ‘tatid ‘r 20 lb. (75 dr#) Regular photocopier paper Bondpaper Normal paper Recycled paper 16 to 24 lb. (60 to 90 (ah#’) Card stock (90 to 135 @m2) Envefopes Labels...
Page 16: Electrical Specifications
General Description EPL-9000 Service Manual See Figure 1-2. Printable area (standard paper): — Printable Area — .Omm~ 5.Omm — — Figure 1-2. Printable Area The actual printable area depends on the printer mode. Note: Less than 35 dB(A) (standby) Noise: Less than 48 dB(A) (operating) 0.05 ppm (typical) Ozone density:...
Page 17: Environmental Conditions For Operation (Including Imaging Cartridge)
EPL-XXUI Service Manual General Description 1.2.4 Environmental Conditions for Operation (Including Imaging Cartridge) Temperature: 10 to 32° C (50 to 90° F) 20 to 80’Yo RH Humidity: 2~ m (8ZO0 feet) or lower Altitude: Levelness: Printer should be installed on a level plane. 3@Kl I or less (Must not be exposed to direct sunlight.) Illuminance:...
Page 18: Specification For Consumable (Imaging Cartridge)
General Description EPL-9000 Service Manual 1.2.7 Specification for Consumable (Imaging Cartridge) 6,500 pages Life: In continuous printing mode with A4/letter paper at a image ratio (black/white Note: 5’XO ratio). The life varies, depending on the printing mode (continuous or intermittent) and/or the image ratio.
Page 19: Software Specifications
ESC/P 2 (LQ-570/1070) mode Note: The EPSON GL/2 mode is similar to the GL/2 mode included in the HP LaserJet 4 emulation. Table 14 shows the differences between EPSON GL/2 mode and the GL/2 mode in the HP LaserJet 4 emulation. While in EPSON GL/2 mode, the operator can enter GL/2 mode without sending the ESC ‘3WB (Enter GL/2 mode) cornman d.
Page 20 EPL-9000 Service Manual General Description Table 1-7. Built-in Fonts (Continued) Applicable Mode Resident Fonts H:&JQ ESC~ 2 Scalable fonts Dutch’” 801 Roman SWC Dutch 801 Bold SWC Dutch 801 Italic SWC Bold Italic SWC Dutch 801 Zapf Humanist 601 Demi SWC Bold SWC Zapf Humanist 601 Zapf Humanist 601...
Page 21 EPL#UM Ser&e Msnwd Genersl Description F6nt Symbol Sets LaserJet4 Mode (bitmap fonts): 15symbol sets Roman-8 Norwegl Roman Extension Italian ECM94-1 sweclis2 ANSI ASCII French2 German Legal Spanish IBM-DN IBti-US PcMultilingual LaserJet4 Mode (scxdablefonts): 34 symbol Roman-8 Norwegl Italian ECM941 Sweclis2 ANSI ASCII French2 German...
Page 22: Interface Specifications
Optional Type B interface 1.3.1 Parallel Interface The parallel interface has two modes as follows: 9 Compatibility mode (same as parallel interface of EPSON’s current page printer) Reverse mode 1.3.1.1 Compatibility Mode of Parallel Interface STROBE synchronization, 8-bit parallel data transfer...
Page 23: Table 1-8. Parallel Interface Pin Assignments
EPL-$WO Service Manual General Description Table 1-8. Parallel Interface Pin Assignments Descri*n Signal Name Pin No. STROBE is a strobe pufse used to read data from the host computer. The pulse width must be more than 0.5&c. STROBE Normally it is HIGH, and data is latched at the trailing edge of this sicmal.
Page 24: Table 1-9. Parallel Interface Pin Assignments
General Description Service Manual EPL-9000 Reverse Mode 1.3.1.2 The reverse mode for EPL-9000 supports the nibble mode of IEEE-P1284. This printer can run in reverse mode, in which the printer can inform the computer of its status by EJL and PJL commands.
Page 25 EPL-XWl Service Rkwwal General Description Figure 1-4 shows the parallel interface state switch diagram. Compatibility Mode .,,,,,, Forward Data ACK and BUSY Transfer SLCT IN= LOW SLCT IN=HIGH ERR=HIGH No data sent ERR= LOW Sending data AUTO FFFD LOW Request to send data ~ AUTO AUTO...
Page 26: Figure 1-5. Negotiation Timing Chart
General Description Service Manual EPL-9000 Figure 1-5 shows the negotiation timing chart. DATA COh or 04 h SEL-IN STROBE AUTO-FEED ACKNLG BUSY Peripheral Busy Status Notel Current Peripheral Wus ; Note 2 ; SLCT Notel ERROR ~ Current Peripheral Staius : HB DAor Idle Compatibility...
Page 27: Figure 1-7. Termination Timing Chart
EPL-~ Service Menual Genere! Description Figure 1-7 shows the te rrnination fining chart. DATA SEL-IN STROBE Note AUTO-FEED ACKNLG \ Peripheral Busy Status Peripheral Busy !3atu.$ BUSY ; current Peripheral status Note Note SLCT ; Current N o t e Peripheral Status ERROR Termination...
Page 28: Serial Interface
General Description Service Manual EPL-9000 1.3.2 Serial Interface Type: RS-232C/R%122 Full duplex Transfer system: Synchronization: Asynchronous start-stop system 1 bit Start-bit: Stop-bit: 1 or 2 bits Data length: 7 or 8 bits Parity: Odd, even, or none X-ON/X-OFF (can be combined with DTR control) Protocol: DTR control (can be combined with X-ON/X-OFF) Transfer speed:...
Page 29 Epl.-m Serwe ‘ Manual General Description indicates an RS-422 signal, which is SelecType. Note 1: ( ) and “DTR” states can be selected through SelecType. Note 2: ‘US”, “DSR”, Note3: Although the signaIs Rn, ~, DSR, DTR, and DCDare RS-232Clevel, theycanbe used for RS-422 mode if selected through SelecType.
Page 30: Optional Localtalk Interface
General Description Service Manual EPL-9000 1.3.3 Optional LocalTalk Interface This printer can use the optional LocalTalk interface module. Type: LocalTalk Signal level: Same as RS-422 signal level X-ON/X-OFF (cannot be combined with DTR control) Protocol: DTR control (cannot be combined with X-ON/X-OFF) Transfer speed: 230.4 K bps Signal description:...
Page 31: Operating Instructions
EPL-m ~ “ MWluel General Description 1.4 OPERATING INSTRUCTIONS This section describes the functions performed through the control panel, such as test print, hexadecimal dump, and SelecType functions. 1.4.1 Control Panel The printer control panel gives you easy control over most common printer operations. The panel consists of a liquid crystal display (LCD), indicator lighk, and buttons.
Page 32 General Description Service Manual EPL-9000 Buttons Line Switches the printer between on-line and off-line mode. While in SelecType mode, this button exits SelecType mode. Form Feed When the printer is off line and the Form Feed light is lit, pressing this button prints out data in the printer’s memory.
Page 33: Table 1-12. Selectype Functions
EPi-90tM Smme “ h4iwwal General Description SeIecType Functions 1.4.2 The SelecType function on the printer control panel allows the user to control most of the pMter’s functions, such as printing test pages, selecting a paper size, and changing the printer’s configuration.
Page 34 General Description Service Manual EPL-9000 Table 1-12. SelecType Functions (Continued) Available Options Menu (Changed by? or $ button) (Chan~~g{)MENIJ (Chang~ $%EM button) (Set by ENTER button) Font Courier, Roman, Orator S, Saris Ser, Prestige, Script 10 CPI, 12 CPI, 15 CPI, Prop Pitch Condensed ON, OFF...
Page 35 EPL-WOO -Joe Manual General Description Table 1-12. SelecType Functions (Continued) Available Optione Menu by~or~ button) (Cha ad (Chan ~:~)MENIJ (Chanx t#%EM button) (%%y ENTER button) TRAY SIZE MP TRAY SIZE A4, A3, A5, 64,65, LT, LGR, HLT, LGL, GLT, GLG, EXE, F4, MON, C1O, DL, C5, STD SIZE A4, A3, %, 64,65, LT, LGR, HLT, LGL GLT, GLG, EXE, F4, MON, CIO, DL, C5,...
Page 36: Hexadecimal Dump Mode
General Description Service Manual EPL-9000 Table 1-12. SelecType Functions (Continued) Available Options Menu (Changed by ~ or $ button) (Chan e&g#)MENU (Chang~ ~~~EM button) button) (Set by ENTER — STATUS SHEET TEST LJ4 FONT SAMPLE — ESCP2 FONT SAMPLE — FONT SAMPLE —...
Page 37: Eeprom Format Mode
Manual EM-W(W Sarvrca “ Genaml Descri@ion 1.4.3.3 Factory Service Mode mode is a useful tool for service people. This mode is not available to users. To The factory service enter factory service mode, turn on the printer while hoMing down the On Line, Fotm Feed, and Continue buttons until “PRODUCT MENU”...
Page 38: Display Ofmessages
General Description Service Manual EPL-9000 1.4.4 Display of Messages This printer displays three types of messages on the LCD: status messages, error messages, and power on messages. Status Messages 1.4.4.1 LCD panel normally indicates the printer’s status and the software mode. Table 1-14.
Page 39: Warning Messages
EPL-_ Serv#ce ‘ Manual General Description Table 1-15. Error Messages (Contined) Measures status Message The inserted cartridge is not sLVPOrted. Remove cartridge and press ILLEGAL CART Continue button. Cartridge was removed while Form Feed Reinstall cartridge and press INSERT CART Continue button.
Page 40: Printersharing
Service Manual EPL-9000 General Description 1.4.5 Printer Sharing This section describes printer sharing. This printer has two methods of printer sharing, port fixed mode and auto sense mode. These modes are selected by SelecType menu “AUTO SENSE”. Port Fixed Mode 1.4.5.1 When the printer is in port fixed mode, only one interface port is active.
Page 41: Autosense Mode
EPi-&MO Service Manual General Deecriptkm 1.4.5.2 Auto Sense Mode It is possible to allocate each mode to parallel, serial, L/T, and AUX. The entire memory will be allocated to the channels that are used. me interface that receives the data&twill print first. Mode Assignment ESC/P2 mode...
Page 42: Emulation Mode Switch Functions
The two types of emulation switch functions described below are available on this printer. Together they are referred to as SPL (Shared Printer Language). EJL: EPSON Job Language This is EPSON’s origiml language system. It is able to skip among various destinations, as shown in Figure 1-12. PJL: Printer Job Language This is HP’s original language, which is available with the LaserJet 4 printer.
Page 43: Bi Resolution Improvement Technology
EPL-WXM Serwce “ Manual General Description 1.4.7 Bi Resolution Improvement Technology The EPL-9000 printers have BiRITech (Bi Resolution Improvement Technology), which is designed to improve print quality at 600 dpi and 300 dpi. By this method, the dot map data extracted from the image data is reassembled to improve print data.
Page 44: Optional Memory
By installing additional SIMMS, you can increase the printer’s memory to a total of 64 MB, including the resident memory. EPSON supplies several types of memory option (SIMM). Other SIMMS can be purchased from other vendors. Be sure the SIMM meets the requirements listed below.
Page 45: Main Components
“ h4mual EPL-$UXM ~ General Description 1.5 MAIN COMPONENTS To simplify maintenance and repair, the main components of the EPL-9000 have been designed for easy removal and replacement. The main components are: Video controller arcuit board C135 MAIN board Optional LocalTalk module C8232@ I/F (Optkd) Control panel Engine controller circuit board...
Page 46: C135 Main Board
General Description Service Manual EPL-9000 MAIN Board 1.5.1 C135 MAIN board is a video controller board. The primary functions of this board are C135 receiving print data from the host, generating the print image (video), and sending the print image to the engine controller via the video interface.
Page 47: Control Panel
EPL-- Sarv&a Msnua/ Ganaral Description 1.5.2 C8232&k I/F Board (O@”onal LocalTalk Module) The C8232& I/F board has the LocalTalk interface circuit, which allows this printer to ccmnect to Apple” Maantosh@ computers. The LocalTallc module is available for a LocalTalk connection. ti Main Chips (IC3) 85C30...
Page 48: Mcu Pwb Board
General Description Service Manual EPL-9000 1.5.4 MCU PWB Board This is the engine controller board. It consists ofanpPD782388-bit CPU (including a MASK ROM) and a gate array. The board controls laser scanning (the polygon mirror drive motor), image synchronization, laser beam pulse width, and power. CPU uPD78238 (Ul) ASIC...
Page 49: Hvps Board
EK4UUM Service Manual General Description HVPS Board 1.5.6 is the high-voltage supply circuit board. It rmnverts the development bias, OFC drum The HVPS charge bias, and image transfer bias. Do not touch VRl, VIW, YR5& VR53, VRIOl and WU02 on the HVPS board. These volumes are for factoy setting only.
Page 50: Figure 1-24. Fusing Unit
General Description Service Manual EPL-9000 1.5.8 Fusing Unit The fusing unit fixes the toner to the paper using heat and pressure. This unit has a heater lamp, thermistor, and thermal fuse. There are two types of fusing units, the 120 V type and the 220/240 V type.
Page 51 Chapter 2 Operating Principles Table of Contents 2.1 ENGINE OPERATION ....2.1.1 Print Process......Drum Charge.
Page 52: List Of Tables
List of Figures .d : . . ;,! Figure 2-1. Main Components ........2-1 Figure 2-2.
Page 53: Engine Operation
Operating Principles Service Manual EPL-9000 2.1 ENGINE OPERATION This section describes the function and operating principles of the EPL-9000. Figure 2-1 shows the location and names of the main components for the engine. 1. Pickup roller 15. Raster output scanner 2.
Page 54: Print Process
EPL-WXM Servike Manual Oparating Principias 2.1.1 Print Process This print section describes the process from drum charge to quenching. Figure 2-2 shows the print process steps, and F@re 2-3 shows the print process diagram. I 1. Drum Charge 2. Laser Exposure 3.
Page 55: Drum Charge
Service Manual Operating Principles EPL-9000 2.1.1.1 Drum Charge Drum charge is the process of charging static electricity to the OPC (Organic Photo Conductor) drum before laser exposure. The charge wire discharge to the OPC drum surface potential of the OPC drum even. The charge screen between the charge wire and the OPC drum, which is connected to the ground through the zener diode, limits the discharge to the OPC drum to maintain the OPC drum surface potential at the specified level (-310 VDC).
Page 56: Development
EPL-%NNI Service Manuel Operating Principles 2.1.1.3 Development The development is the process of creating a toner image on the OPC drum by applying toner onto the invisible static electriaty image. The CM (Charge Metal) blade spreads a thin, even coat of toner over the magnet roll.
Page 57: Paperseparation
Operating Principles Service Manual EPL-9000 2.1.1.5 Paper Separation After image is transferred onto the paper, the paper is separated from the OPC drum by means of curvature separation. In the curvature separation method, the diameter of the OPC drum is designed to be small enough to separate the paper from the OPC drum easily.
Page 58: Drum Cleaning
EPL-_ *vice Manual Operating Principles 2.1.1.7 Drum Cleaning After the image transfernxi onto paper, any remaining toner on the OPC drum is scraped off by the cleaning blade and collected in the used toner bottle. OPC Drum Figure 2-10. Cleaning c .
Page 59: Paper Feed Mechanism
Operating Principles Service Manual EPL-9000 Paper Feed Mechanism 2.1.2 This section describes the paper feed mechanism. This printer engine has two paper feed methods: one is cassette feeding (optional second cassette feeding is the same), and the other one is manual feeding.
Page 60: Cassette Feed
EPL-- Service Manual Operating Principle 2.1.2.1 Cassette Feed This printer can use three types of paper cassette: A3 universal cassette, A4 universal cassette, and optional envelope cassette. Figure 2-14 shows the paper cassette and feeder assembly. Paper Cassette p~-out Actuator Paper Guide Feed Roller Assernbty...
Page 61 Operating Principles Service Manual EPL-9000 The paper stacked in the paper cassette is pushed by the feed rolls. This causes the top of the paper stack to contact them. The feed solenoid comects or disconnect the main motor drive to the feed roll assembly.
Page 62: Multi-Sheet Inserter Feed (Manual Feed)
EPL-%XW ServiGe Mutual Oprating Principles 2.1.2.2 Multi-Sheet Inserter Feed (Manual Feed) This printer has a manual feed slot called MSI (Multi-Sheet Inserter). l’ihen the pickup solenoid is actuated, the pickup rolls rotate and feed the first page. The pickup rolls stop after one rotation. Paper+ut conditions are detected by the MSI sensor, located above the pickup rolls.
Page 63: Papertransport
Operating Principhs Service Manual EPL-9000 Paper Transport 2.1.2.3 This section describes the paper registration and paper transport. The printer detects paper inserted in the printer engine from the paper cassette or MSI by the REGI. sensor. After the REGI. sensor detects the paper top edge, the REGI. clutch is turned on and the REGI.
Page 64 EPL-WServiCehfanual Opmtingl%hm$?ks printer uses a contact type image transfkr system by BTR. Registration section through paper This is transported to fuser by BTR and OPC drum. The BTR and OPC drum through paper is vacuumed to trans. chute assembly side by air for chute fan.
Page 65: Paper Exit
Operating Principles Service Manual EPL-9000 2.1.2.4 Paper Exit The paper on which the toner image has been fused is fed to the output tray. The exit sensor is kxated beyond the pressure roll and the heat roll in the paper path. The engine controller (MC PWB) detects by the exit sensor that paper has been delivered.
Page 66: Engine Control
EPL-_ Sertihtanual OperatingPrinciples Engine Control 2.1.3 describes engine control, low voltage supply board (LVPS), and high voltage supply This section board (HVPS). The engine is controlled by the engine controller board (MC FWB). Figure 2-24 shows the engine contrcdh?r connecting diagram. ,YPS BOARD ROS UNIT AC IN...
Page 67 Operating Principles Service Manual EPL-9000 2.1.3.1 Main Motor Functions and Control The power of the main motor drive is used OPC drum drive, developing drive, fusing drive, and paper feeding drive. Figure 2-25 shows the main motor drive circuit. The main motor is a 4 phase stepping motor. This motor is controlled by the CPU on the engine controller board (MC PWB).
Page 68: Figure 2-28. Temperature For Fuser Control Procedure
EPL-$UMO Service Menual Opereting Principles 2.1.3.3 Fuser Control The fuser is heated by the heater rod. l’he heater rod’s power is AC voltage. The low voltage supply board (LVPS W) suPply AC voltage to the heater rod, when the power supply board receives the HEATER ROD ON signal from the engine amtroller board (MC PWB).
Page 69: Engine
Service Manual Operating Principles EPL-9000 If the following conditions are detected, it will be judged that there is a fuser error (LCD displayed “SERVICE REQ. EOO03”). The warming-up period does not end within 150 sec. The thermistor temperature drops to 122 degrees C. K The thermistor temperature exceeds 182 degrees C.
Page 70: Laserdiode Drive
EPL-9tXM Sarvibe Manual Operating Pnnciplea Laser Diode Drive 2.1.3.5 Figure 2-30 is a laser diode drive arcuit. Laser diode emission is amtrolled by four signals (DATA, VL1, VL2, and 5VDC-LD) from the engine controller board (MC PWB)................DATA Las&w MO 4...
Page 71: Bias Control
Service Manual Operating Principles EPL-9000 2.1.3.6 Bias Control This section describes the bias control. A diagram of drum charge bias, image transfer bias, detach bias and developing bias control circuit is shown in Figure 2-31. These bias generate from the +24 VDC on high voltage supply board (HVPS).
Page 72 EPL~ ~ Manual Operating Principles 2.1.3.7 Fan Motor and Chuta Fan Motor Control power is on. Ihe b motor rotates faster fan motor rotates at all ti”kws after the during printing. When printing ends, the fan motor slows down. ‘l’he high voltage supply board (HVPS) receives FAN CONTROL signals from the engine contdler board (MC PWB) during pMtin&...
Page 73: Papersize Detection
Operating Principles Service Manual EPL-9000 Paper Size Detection 2.1.3.8 paper size in paper cassette is detected by four mechanical switches. The paper size si~al is analog signal. Table 2-1 is lists the paper size and paper size switches functions. Table 2-1. Paper Size Detection Paper Size Switch Paper Size Paper Size Signal Level...
Page 74: Figure 2-33. Imaging Cartridge Sensor
EPLm Semce “ h&mual Operating Principks 2.1.3.9 Imaging Cattridge Sensor The CRU actuator push to CRU switch and LD switch, while imaging cartridge is set to pMter. The CRU switch is imaging cartridge sensor. The LD switch is laser power off switch. Laser power is cut off at no imaging cartridge.
Page 75: Video Controller Operation
Operating Principles Service Manual EPL-9000 VIDEO CONTROLLER OPERATION The video controller section generates the video signals for the received data. The video controller section is separate in the C135 MAIN board and the control panel. Video Controller Section , ------------- ------------------ ... . C135 MAIN Board .
Page 76 EPL-@XMSertieh4muai OperatingPrinciples Table 2-2 lists the functions of the C135 MAIN board main elements. C135 Table 2-2. Functions of MAIN Board Main Elements Location Function Etement The CPU, which operates at 19.2 MHz, manages the video MB86930 RISC controller operation. This ASIC contains the fdbwing functions: Address decoding E05A91 ASIC...
Page 77: Figure 2-37. Data Flow Diagram
Service Manual Operating Principles EPL-9000 Print data and commands transmitted from the host computer via parallel, serial, or optional interfaces are read using the interrupt process of the CPU and stored in the DRAM input buffer. Data and commands in the input buffer are processed by the CPU, which then stores the printing bitmap data (image data) in the V (video) -RAM (image buffer) in the DRAM.
Page 78: Buscontrolcircuit
Opefating Pfincipk EPL&UIO Service Manual 2.2.1.1 Reset Circuit The entire system (the CPU and the external devices) can be initialized if the RESET signal (CPU pin 113) are active simuhaneously. This circuit uses an M51938 IC to monitor the supply voltage if a voltage level less than 4.25 V is detected.
Page 79: Interrupt Control
Service Manual Operating Principles EPL-9000 2.2.1.3 Interrupt Control ASIC E05A93 deterrnines the priority level of the interrupt and outputs it to terminals IRLO - IRL3. Then an interrupt is sent to the CPU. When the IRLO-3 value is Illlb, the CPU process is a non-maskable interrupt process.
Page 80: Rs-232C Circuit
EPL-_ Sertke JMnual Operating Principles Parallel Interface Circuit 2.2.1.5 Figure 2-41 shows the parallel interface circuit block diagram. Data sent from the host mmputer is outputs the signal. E05A93 BUSY signal latched within the E05A93 by the STROBE resets the automatically to stop the host computer from sending additional data.
Page 81: Localtalkcircuit
Address . 26LS32 + RxD+/- (IC2) * CTS Figure 2-44. LocalTalk Circuit 2.2.1.9 Optional Typ+B Interfaoe This printer supports an EPSON Type-B optional interface, which is controlled by the INH and BIF signals from the E05A93 (IC17). 2-29 Rev. A...
Page 82: Video Interface
EPL-WM -e Mmual Opefeting Principles 2.2.1.10 Video Interface The ASIC E05A92 maps the SRAM into a memory space different from the system memory. The CPU transmits data from the V-RAM (in the system RAM) to the W using the ASIC E05A92. The ASIC cell converts the image data in the SRAM from parallel to serial, synchronizes it, and then transmits it to the engine controller board.
Page 83 Chapter 3 Disassembly and Assembly Table of Contents 3.1 GENERAL INFORMATION 3.1.1 Precautions for Disassembly/Assembly......3-1 3.1.2 TOOIS .
Page 84: Figure 1-25. Drive Unit
3.2.5.5 Heater Removal ..”.”””””.” o. o””” o ” ””..””... o ’25 3.2.5.6 Heat Roller Removal ..”..””””.” - o” -. ”..” o”””. *26 3.2.5.7 Thermostat Removal ..””. .””s” “.”..”..”””SOSO “o. 327 3.2.5.8 Exit Sensor Removal ..””.””””””””” -” o.s..”.s” *28 3.2.5.9 Exit Actuator Removal..
Page 85 Figure 3-42. Removing the Heat Roller......3-26 Figure 3-43. Removing the Thermostat......3-27 Figure 3-44.
Page 86: General Information
Disassembly and Assembly Service Manual EPL-9000 3.1 GENERAL INFORMATION This chapter describes the disassembly /assembly procedures to be used for replacing the main assemblies of the EPL-9000. 3.1.1 Precautions for Disassembly/Assembly Follow the precautions below when disassembling/assembling the printer. W Disconnect the power cord before disassemblinglassembling the printer. Be sure to handle the fising unit carefully, because the unit remains hot for a while after the printer stops printing.
Page 87: Small Parts
EPMOOO Service Manual Disassembly and Assembly 3.1.3 Small Parts In the following sections, abbreviations are used for small parts such as screws and washers. Table 3-2 lists these abbreviations. Table 3-3 lists screw and washer types. Table 3-2. Screw Abbreviations Part Name Abbreviation Cross-recessed Bind head...
Page 88: Service Checksafierrepair
Service Manual Disassembly and Assembly EPL-9000 3.1.4 Service Checks after Repair Check the repaired unit using the list in Table 3-4. Table 3-4. Checks after Repair Item Location Check Point Check Control oanel Do all LEDs, LCD, and buttons function normally? Heater lamp Does the heater lamp turn on normally? Test print (status...
Page 89: Disassembly And Assembly
EPL#X# Service Man@ Disassembly and AssembW 3.2 DISASSEMBLY AND ASSEMBLY l“his section describes and illustrates the procedures fir removing and disassembling the components of the EPL-9000. Cleanin g is described in Chapter 6. me assembly procedures are not described, except for special notes where necessary, because assembly can be accomplished by performing disassembly in reverse.
Page 90: Leftcoverremoval
Disassembly and Assembly Service Manual EPL-9000 3.2.1.3 Left Cover Removal 1. Remove the rear cover. (Refer to Section 3.2.l.l.) 2. Remove the top cover. (Refer to Section 3.2.l.2.) 3. Remove 1 CB screw (M3 x 8) securing the left cover, and remove it. Figure 3-3.
Page 91: Electrical Component Removal
EM.-4WtKl Service Manual Disassembly and Assemb& 3.2.2 Electrical Component Removal 11-iis section describes how to remove the ELEC cover, MAIN bead, mgine controller board C135 (MCU PWB), high voltage supply board (l-lVPS), low voltage supply unit (LVPS), earth plate, and fan unit.
Page 92: Video Controller Board (C135Maln Board) Removal
Sarvice Manual Disassembly and Assembly EPL-9000 Video Controller Board (C135 MAIN Board) Removal 3.2.2.2 Remove the rear cover. (Refer to Section 3.2.1.1.) Remove the top cover. (Refer to Section 3.2.1.2.) Remove the left cover. (Refer to Section 3.2.1.3.) Remove the right cover. (Refer to Section 3.2.1.4.) Remove the shield cover.
Page 93: Engine Controller Board (Mcupwb Board) Removal
EPL-W@ &Vb Manual Disassembly and Asssmbly 3.2.2.3 Engine Controller Board (MCU PWB Board) Removal 1. Remove therearcover. @eferto Section 3.2.l.l.) 2. Remove thetopcover. (Refer to Section 3.2.l.2.) 3. Remove theleftcover. @efertoSection32.13.) 4. Remove therightcover. (Refer to Section 3.2.l.4.) 5. Remove the ELECcover. (Refer to Section 3.2.2.l.) Disconnect connectors P/J12, P/J13, P/J14, P/J15 P/J16, P/J17, P/J18 and P/J19 from the engine controller board.
Page 94: Low Voltage Supply Unit (Lvps Unit) Removal
Disassembly and Assembly Service Manual EPL-9000 3.2.2.5 Low Voltage Supply Unit (LVPS Unit) Removal Remove the rear cover. (Refer to Section 3.2.1.1.) Remove the top cover. (Refer to Section 3.2.1.2.) Remove the left cover. (Refer to Section 3.2.1.3.) Remove the right cover. (Refer to Section 3.2.1.4.) Remove the ELEC cover.
Page 95: Earth Plate Removal
EPL-SiXM Service R&mual Disassembly and Assembiy 3.2.2.6 Earth Plate Removal Remove the rear cover. (Refer to Section 3.2.1.1.) Remove the top cover. (Refkr to Section 3.2.1.2.) Remove the left cover. (Refer to Section 3.2.13.) Remove the right cover. (Refer to Section 3.2.1.4.) Remove the ELEC cover.
Page 96: Feeder Assembly Removal And Disassembly
Disassembly and Assembly Service Manual EPL-9000 3.2.3 Feeder Assembly Removal and Disassembly section describes how to remove and disassemble the feeder assembly. This Feeder Assembly Removal 3.2.3.1 Remove the paper cassette and imaging cartridge. 2. Turn the left cover over. Place the left cover on a SOP cloth, so that it will not be damaged.
Page 97: Feed Solenoid Removal
Service Manual EPL-9(MUI Disassembly and Assembly 3.2.3.2 Feed Solenoid Removal Remove the paper cassette and imaging cartridge. Remove the feeder assembly. (Refer to Section 3.2.3.1.) Remove 2 CBB saews (M3 x 8) securing the feeder tie plate, and remove it. Remove 2 CBB screws (M3 x 8) and 2 CB saews (M3 x 8) securing the feed housing (right), and remove it.
Page 98: Feed Roller Assembly Removal
Disassembly and Assembly Service Manual EPL-9000 3.2.3.4 Feed Roller Assembly Removal Remove the paper cassette and imaging cartridge. 2. Remove the feeder assembly. (Refer to%ction 3.2.3.1.) 3. Remove 2 CBB screws (M3 x 8) securing the feeder tie plate, and remove it. 4.
Page 99: Turn Roller Assembiy Removal
Disassembly and Assembly EPi-WMW Service Muwal 323.6 Turn Roller Assembty Removal Remove the paper cassette and imaging cartridge. 2. Remove the feeder assembly. (Refer toSection3.2.3.l.) 3. Remove 2 CBB screws (M3 x 8) securing the feeder tie plate, and remove it. 4.
Page 100: Feeder Pwb Board Removal
Disassembly and Assembly Service Manual EPL-9000 FEEDER PWB Board Removal 3.2.3.8 Remove the paper cassette and imaging cartridge. Remove the feeder assembly. (Refer to Section 3.2.3.1.) Remove 2 CBB screws (M3 x 8) securing the feeder tie plate, and remove it. Remove 2 CBB screws (M3 x 8) and 2 CB screws (M3 x 8) securing the feed housing (right), and remove it.
Page 101: Link Assembly Removal
EPL-WXM &rvice &&nual Disassembly andAssemMy 3.2.4 Paper Transportation Section Disassembly This section describes how to disassemble the paper transportation section. 3.2.4.1 Link Assembly Removal 1. Remove thetopcover. (Refer toSection3.2.l.2.) 2. Remove theleftcover. (Refer to Section 3.2.l.3.) 3. Pull out the paper cassette about IOcrn (3.94 inches) towards the front. 4.
Page 102: Lower Chute Assembly Removal
Disassembly and Assembly Service Manual EPL-9000 Lower Chute Assembly Removal 3.2.4.3 1. Open the front cover. 2. Remove the REGI roll assembly. (Refer to Section 3.2.4.2.) 3. Remove 4 CBB screws (M3 x 8) securing the lower chute assembly, and remove it. Figure 3-25.
Page 103: Front Cover Removal
EPL-_ Servke Manual Disassembly and Assembly Front Cover Removal 3.2.4.5 Remove the MSI tray. (Refer to Section 324.13.) Remove the rear cover. (Refer to Section 3.2.1.1.) Remove the top cover. (Retkr to Section 3.2.1.2.) Remove the left cover. (Refix to Sedon 3.2.1.3.) Remove the right cover.
Page 104: Retard Pad Removal
Disassembly and Assembly Service Manual EPL-9000 3.2.4.6 Retard Pad Removal Open the front cover. 2. Remove the retard pad. Figure 3-29. Removing the Retard Pad 3.2.4.7 Trans. Chute Assembly Removal Open the front cover. Remove the BTR assembly. (Refer to Section 3.2.4.4.) Disconnect comector P/J129 from the chute fan.
Page 105: Pick-Up Roller Assembly Removal
EPL-$lXM Service h4mual Disassembly and Assemb/y 3.2.4.8 Pick-up Roller Assembly Removal 1. Open the front cover. 2. Remove the BTRassembly. (Refer to Section 3Q.4.4.) 3 Remove the KLclip Securing thegearclutch, and remove the clutd. 4. Remove both sides of the KL clips securing the pick-up roller, and remove both sides of the bearings.
Page 106: Msi Sensor Removal
Disassembly and Assembly Service Manual EPL-9000 3.2.4.10 MSI Sensor Removal Remove the top cover. (Refer to Section 3.2.1.2.) 2. Remove the left cover. (Refer to Section 3.2.l.3.) 3 Remove the BTRassembly. (Refer to Section 3.2.4.4.) 4. Remove the trans. chute assembly. (Refer to Section 3.2.4.7.) 5.
Page 107: Control Panei Removal
EPL-$XXM Servke Manual Disassembly and Assembfy 3.2.4.12 Control Panel Removal Remove the top cover. (Refer to Section 3.2.1.2.) Remove the left cover. (Refix to Section 3.2.1.3.) Remove the BTR assembly. (Refer to Section 3-2.4.4.) Remove the trans. chute assembly. (Refer to Section 32.4.7.) Remove the link assembly.
Page 108: Fusing Unit Removal And Disassembly
Disassembly and Assembly Service Manual EPL-9000 Fusing Unit Removal and Disassembly 3.2.5 This section describes how to remove and disassemble the fusing unit. 3.2.5.1 Fusing Unit Removal Remove the top cover. (Refer to Section 3.2.1.2.) 2. Disconnect comector P/Jl19 from the eject sensor. 3 Remove 1 CB screw (M3 x 6) securing the fusing unit.
Page 109: Exit Chute Removal
EPMMUXI Service lknual Disassembly and Assemb/y 3.2.5.3 Exit Chute Removal 1. Remove the top cover. (Refer to Section 3.2.l.2.) 2. Remove the fusing unit. (Refer to Section 3.2.5.l.) 3 Remove 2 CBB screws (M3 x 8) securing the fusing unit top cover, and remove it. Remove 2 screws securing the exit chute, and remove it.
Page 110: Heater Removal
Disassembly and Assembly Service Manual EPL-9000 Heater Removal 3.2.5.5 Never touch the heater with your bare hands Remove the top cover. (Refer to Section 3.2.1.2.) Remove the fusing unit. (Refer to Section 3.2.5.1.) Remove 2 CBB screws (M3 x 8) securing the fusing unit top cover, and remove it. Remove the eject chute.
Page 111: Heat Roller Removal
El?l.-WllW Service Mimual Dkassembly and Assembly Heat Roller Removal 3.2.5.6 Remove the top cover. (Refer to Section 3.2.1.2.) Remove the fusing unit. (Refer to Section 3.2.5.1.) Remove 2 CB screws (M3 x 6) securing the inlet chute at the bottom of the fusing unit, and remove the inlet chute.
Page 112: Thermostat Removal
Disassembly and Assembly Sarvice Manual EPL-9000 Thermostat Removal 3.2.5.7 Remove the top cover. (Refer to Section 3.2.1.2.) Remove the fusing unit. (Refer to Section 3.2.5.1.) Remove 2 CB screws (M3 x 6) securing the inlet chute at the bottom of the fusing unit, and remove the inlet chute.
Page 113: Exit Sensor Removal
EPL4UXM Service Manual Disassembly and Assembw 3.2.5.8 Exit Sensor Removal 1. Remove thetop cover. (Refer to Section 3.2.1.2.) 2. Remove the fusing unit. (Refer to Section 3.2.5.l.) 3. Remove the exit sensor. Figure 344. Removing the Exit Sensor Exit Actuator Removal 3.2.5.9 1.
Page 114: Drive Unit Removal
Service Manual EPL-9000 Disassembly and Assembly Drive Unit and Optical Unit Removal 3.2.6 This section describes how to remove the drive unit and the optical unit. 3.2.6.1 Drive Unit Removal Remove the rear cover. (Refer to Section 3.2.l.l.) 2. Remove the top cover. (Refer to Section 3.2.l.2.) 3.
Page 115: Erase Lamp Removal
EPL-_ Servwe hhnual Dissssembty and Assembly 3.2.6.2 CRU SENSOR PWB Board Removel 1. Remove the rear cover. @fertoS ection31L 1.1.) 2. Remove thetopcover. (Refer to Section 3.2.l.2.) 3. Remove theleftcover. @eferto Section 3.2.13.) 4. Remove the right cover. (Refer to Section 3.2.l.4.) Remove the ELECcover.
Page 116 Service Manual Disassembly and Assembly EPL-9000 There are four screws securing the ROS unit cover. If you unintentionally remove three of these screws while removing the engine driver (MCU PWB) board and high voltage unit from the ROS unit, it is possible for reflected light from the leaser to leak and cause damage.
Page 117 EPL-$UXM Service MAnual Disassembly and Assemb/y ‘? Figure 3-50. Removing the ROS Unit Rev. A 3-32...
Page 118: Chapter 4 Adjustments
Chapter 4 Adjustments No Adjustment is required in this product.
Page 119 Chapter 5 Troubleshooting Table of Contents 5.1 OVERVIEW SELF-DIAGNOSTIC FUNCTION 5.3 TROUBLESHOOTING 5.3.1 Troubleshooting Abnormal Operations ......5-2 5.3.2 Troubleshooting Print Quality Problems .
Page 120: Self-Diagnostic Function
Troubleshooting Service Manual EPL-9000 5.1 OVERVIEW The EPL-9000 has a sophisticated built-in self-diagnostic function that reduces troubleshooting time by identifying failed components. This self-diagnostic test overcomes the troubleshooting problems for page printers in which even a trivial failure can result in a serious print quality problem.
Page 121: Troubleshooting
EPL-~ Service Manual Troubleshooting 5.3 TROUBLESHOOTING This section describes troubleshooting abnormal operations and print quality problems. 5.3.1 Troubleshooting Abnormal Operations This section describes how to detect malfunctions, determine their cause, and take action, for various types of malfunctions. Each symptom in Table 5-2 refers you to a detailed troubleshooting table later in this chapter.
Page 122: Table 5-3. The Printer Does Not Operate At All
Troubleshooting Service Manual EPL-9000 Table 5-2. Symptoms and Reference Tables (Continued) Reference Symptom Printer Condition Table 5-30 SERVICE REQ. Cl 160 The LCD displays SERVICE REQ. Cl 160. 5-31 SERVICE REQ. Cl 170 The LCD displays SERVICE REQ. Cl 170. SERVICE REQ.
Page 123 EPL-WOO Service Manual Troubleshooting Table 5-7. The LCD Displays PAPER OUT (2) Finding Solution Cause Step Checkpoint The paper-empty sensor Is the paper-empty sensor Reset the paper- flag of the standard feeder flag position OK? empty sensor flag. position may be incorrect. Replace the paper- The paper-empty sensor —...
Page 124 Troubleshooting Service Manual EPL-9000 The LCD Displays FEED JAM (1) (Continued) Table 5-10. Checkpoint Finding Solution Cause Step Disconnect connector P/Jl 4 on the MCU PWB board and check the coil resistance between: pin 1 and pin 3; pin 1 and pin 5; pin 2 and pin 4;...
Page 125 Efi-9tXM Service Manual Troubleshooting Table 5-11. The LCD Displays FEED JAM (2) Finding Solution Cause Step Checkpoint D~nn@ connector P/J201 on the FEEDER PWB board and check the coil resistance between pin Replace the feed 1 and pin 2 on the solenoid.
Page 126 Troubleshooting Service Manual EPL-9000 Table 5-11. The LCD Displays FEED JAM (2) (Continued) Cause Step Checkpoint Finding Solution Disconnect connector P/Jl 4 on the MCU PWB board and check the coil resistance between: pin 1 and pin 3; pin 1 and pin 5; pin 2 and pin 4;...
Page 127 E?l-_ Servke h&mual Troubleshooting Table 5-12. The LCD Displays FEED JAM (3) Solution Finding Checkmint Step Cause Disconnect connector P/J201 on the FEEDER PWB board and check the coil resistance between pin Replace the feed 1 and pin 2 on the solenoid.
Page 128 Troubleshooting Service Manual EPL-9000 The LCD Displays FEED JAM (3) (Continued) Table 5-12. Solution Step Checkpoint Finding Cause Disconnect connector P/Jl 4 on the MCU PWB board and check the coil resistance between: pin 1 and pin 3; pin 1 and pin 5; pin 2 and pin 4;...
Page 129: Table 5-14. The Lcd Displays Paper Jam During Paper Feeding
Troubleshooting EPL-9iM9 ~ice Manuel Table 5-14. The LCD Displays PAPER JAM During Paper Feeding cause solution Finding Step Checkpoint REGI roller or REGI Does paper always jam in the Replace the REGI clutch lllZIY be bad. REGI roller area? roller. Does paper always jam in the Replace the BTR The BTR roller maybe bad.
Page 130: Table 5-20. The Lcd Displays Service Req. Eoo
Troubleshooting Service Manual EPL-9000 Table 5-20. The LCD Displays SERVICE REQ. EOO08 Finding Step Checkpoint Cause Solution Replace the MCU MCU PWB board may — — PWB board. be bad. Table 5-21. The LCD Displays SERVICE REQ. EOO14 Finding Solution Step Checkpoint Cause...
Page 131: Table 5-27. The Lcd Displays Service Req. C
The ROMs on the — the EPSONScript Level — EPSONScript Level 2 Module. Module may be bad. The EPSONScript Level Replace the EPSON- 2 Module circuit maybe — Script Level 2 Module. bad. Replace the C135 MAIN MAIN board The C135 —...
Page 132: Table 5-35. The Lcd Displays Service Req. C
Troubleshooting Service Manual EPL-9000 Table 5-33. The LCD Displays SERVICE REQ. C1190 Step Checkpoint Finding Solution Cause The font Replace the font cartridge may — — cartridge. be bad. Replace the C135 The C135 MAIN board — — MAIN board. may be bad.
Page 133: Print Quality Problems
En-= Service Manual Troubleshooting Print Quality Problems 5.3.2 Troubleshooting This section describes how to isolate print quality problems from their possible causes and remedy them, as shown in Table 5-39. Table 5-39. Print Quality Problems Remedy Part Name Check Item Possible Cause Symptom Check to see if the...
Page 134 Troubleshooting Service Manual EPL-9000 Table 5-39. Print Quality Problems (Continued) Remedy Cheek Item Part Name Possible Cause Symptom llhite line Window of optical Optical unit Clean the window. — unit is dirty. Poor image Replace the BTR roller. — BTR roller transfer Replace the imaging Imaging...
Page 135 EPL4RXXI Service Menus{ Troubleshooting Table 5-39. Print Quality Problems (Continued) Part Name Check kern Remdy Cause Possibie Symptom Areas of missing print Poor image BTR roller Replace the BTR rollel — transfer Replace the imaging Imaging — cartridge. cartridge wing F@ing ~ler Replace the fusing Dirt on —...
Page 136 Troubleshooting Service Manual EPL-9000 Table 5-39. Print Quality Problems (Continued) Remedy Part Name Check Item Symptom Possible Cause Replace the paper Paper cassette Skew Paper cassette — cassette. may be bad. - - - - - - - Replace the imaging Imaging cartridge Imaging —...
Page 137 Maintenance Chapter 6 Table of Contents 6.1 MAINTENANCE 6.1.1 User Maintenance ......... . 6-1 6.1.1.1 Cleaning .
Page 138: Maintenance
Service Manual Maintenance EPL-9000 6.1 MAINTENANCE The EPL-9000 is page printer that uses the electrophotographic printing method. Unlike most impact or ink-jet printers, the key components in the electrophotographic process are integrated into an expendable imaging cartridge. Therefore, periodic replacement of the imaging cartridge is essential to ensure high-quality output.
Page 139 Maintenance EPL4UXM Service Manual Charge Wire Cleaning If the printer begins to print black lines, clean the charge wire as follows: Figure Charge Wire Cleaning (1) 6-2. layer. Locate the three layers in the imaging cartridge and the bur slots in the middle into the slot as fir as it will go and Clean each slot in the middle layer by pushing the tool...
Page 140: Imaging Cartridge Replacement
Maintenance Service Manual EPL-9000 6.1.1.2 Imaging Cartridge Replacement This printer uses the SO51O22 consumable imaging cartridge. The life of this cartridge is 6500 pages when printing on A4 or letter size pages with a print ratio. If your printed images become faint, enter the SelecType CONFIG menu and use the TONER function to find out approximately how much toner remains in the imaging cartridge.
Page 141 Maintenance EPi-$UUW Service Mernad holding the imaging cartridge, carefully slide the plastic mmer on either side of the 6. While m-tridge into the grooves, as shown in Figure 6-6. Slide the cartridge gently into the pMter as far as it will go. Figure 6-6.
Page 142: Service Maintenance
Maintenance Service Manual EPL-9000 Menu 12. When the paper is ejected, READY appears on the display. Press once and then press Menu ALT and together once. TEST MENU appears. 13. Press Item several times until CLEANING EXEC appears. 14. Take the same sheet of paper that was printed in Step 11 and insert it into the MSI tray with Continue.
Page 143 Appendix Table of Contents A.1 CONNECTOR PIN ASSIGNMENTS A.1.l Video Controller Board (C135 MAIN Board) ..... . A-4 A.I.2 Engine Controller Board (MCU PWB Board)..... A-12 A.1.3 High-Voltage Supply Board (HVPS Board).
Page 144 Appendix Service Manual EPL-9000 A.1 CONNECTOR PIN ASSIGNMENTS Figures A-1 and A-2 illustrate the interconnection of the primary components. Table A-1 gives the size and a description of each connector. C135 MAIN Font Serial l/F Cartridge ml SIMM CN1O MCU PWB ml SIMM Parallel l/F CNI1...
Page 145 EPL-#00 Service Uanual Appendix e , , , . .! ...,,/ “’- PIJ1 Pull* ‘- -m... <,wc LDMSV P2Jl!s 31=11 ?!!5 E20En Pnl 1.F.S <24VDC ,.. . l u l l (.. , 1.1.s ‘ : 7! <24= ‘“m 24W03 UEO1.
Page 146: Figure 1-9. Control Panel
Service Manual EPL-9000 Table A-1. Board Connector Summary Connector Description Pins Reference Video Controller Board {C135 MAIN Board) Connector for SIMM 72 pins Table A-2 Connector for SIMM 72 pins Table A-2 HP font cartridge 50 pins Table A-3 Connector for Centronics parallel interface 136 pins I Table 1-8 Connector for optional l/F (Type-B) card...
Page 147 EPL4XR%I Service Mimual Appendix Video Controller Board (C135 MAIN Board) A.1.l Table A-2. CNI, 2 Pin Assignments Description Signal Name Pin No. — Ground Data bus bit O Data bus bit 16 DQ16 Data bus bit 1 Data bus bit 17 DQ17 Data bus bit 2 Data bus bit 18...
Page 148 Appendix Service Manual EPL-9000 Table A-2. CNI, 2 Pin Assignments (Continued) Signal Name Description Pin No. DQ24 Data bus bit 24 Data bus bit 9 DQ25 Data bus bit 25 Data bus bit 10 DQ1O DQ26 Data bus bit 26 DQ1l Data bus bit 11 DQ27...
Page 149 EPL-- Serwca “ tinual Appendix Table A-3. CN3 Pin Assignments Nanw Description Pin No. Signal Address strobe Lower data strobe LDSX — Not connected Font cattridge enable Address bus bit 2 Addrass bus bit 4 Address bus bit 6 Address bus bit 8 Address bus bit 10 Address bus bit 12 Address bus bit 14...
Page 150 Appendix Service Manual EPL-9000 Table A-4. CN5 Pin Assignments Description Pin No. Signal Name — +5 VDC Transmitted data READY Ready signal Received data — Not connected Reset signal RESET l/F disabled Request command CMREQ l/F ready WRRDY Data read request RDREQ Wriie enable Read enable...
Page 151 EPL4UMXI Servke Mmual Appendix TabJe A-5. CN6 Pin Assignments Pin No. Signal Name Description — +5 v — Ground Data bus bit 2 Data bus bit 3 Data bus bit O Data bus bit 1 Data bus bit 6 Data bus bit 7 Data bus bit 4 Data bus bit 5 Data bus bit 10...
Page 152 Appendix Service Manual EPL-9000 Table A-5. CN6 Pin Assignments (Continued) Description Pin No. Signal Name Read/wriie signal Address bus bit 30 Address bus bit 31 Input ready signal RDYIN — Not connected Option select 1 OPT1 — Not connected — Read strobe —...
Page 153 Mm&# EPL-9iXXl Service Appendix Table A-5. CN6 Pin Assignments (Continued) Deaorhkion Pin No. Signal Name Address bus bit 25 Byte enabfes O BWEO — Not connected Bus request BREQ Bus grant BGRNT Bus grant for external device BGAT Bus request for external device BREQ Byte enables 2 BWE2...
Page 154: Pin Assignments
Appendix Service Manual EPL-9000 Pin Assignments Table A-7. CNIO Description Pin No. Signal Name — Ground PPRDY Printer ready Paper top Engine status Controller command CBSY — Not connected Video signal CCLK Command clock Pre feed signal PRFD — Not connected Horizontal synchronized signal Ensign ready SBSY...
Page 155 EPi.-9tNXl Service Manual Appendix A.1.2 Engine Controller Board (MCU PWB Board) *,!:. Table A-10. P/Jll Pin Assignments -,,7 ,’, Signal Name Description Pin No. H.ON Heater ON — Ground Voltage drop signal — Ground — 5VDC-LD +5VDC for ROS unit —...
Page 156 Appandix Service Manual EPL-9000 Table A-13. P/J14 Pin Assignments Description Signal Name Pin No. — +24VDC +24 VDC — +24VDC +24 VDC Main motor phase A Main motor phase B Main motor phase ~ Main motor phase ~ Table A-14. P/J15 Pin Assignments Description Signal Name Pin No.
Page 157 EPL-9tXM Service Manual Appendix Table A-17. P/J18 Pin Assignments Description Signal Name [ I/O / Pin No. — Ground Imaging cartridge sensor EP CHEK 5VDC-LD Laser diode power (input) Laser diode power (output) 5VDC-LD ERASE ON Erase lamp on — +24 VDC 24VDC Table A-18.
Page 158 Appendix Service Manual EPL-9000 w—+———— — ulwelw- LolJl13r4. .nIAwl-4W — Imw#-m UWI13-N I I 1A 111111 Ill! :-; -- I 1 1 Tl!l I I I I -.. ~ Umlcln LT 1 1111 Unllv* u w e - vOz-- Uox-ul Uoz--l “OJI-N uOx - -...
Page 159 EPL-_ Service Manual Appendix A.3 CIRCUIT BOARD COMPONENT LAYOUT i UUL’”--”:”’”’ ‘ “:;--””-”” ..-. —..- 1 9 6 1 - 4 - 7 < -..- -.-l [C*4 r--l IC47 ~ IC46 ! -1 ‘ F — ‘? c“’ -, ~—...
Page 160: Rear Side
Appendix Service Manual EPL-9000 c63n UC31 R206 n,.? mc23 u’” C66CI Figure A-6. C135 MAIN Board Component Layout (Rear Side) A-19 Rev. A...
Page 161 EPSON...

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Chapter 3 Disassembly and Assembly

Chapter 5 Troubleshooting

Maintenance Chapter 6

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