Epson M2000 Service Manual
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EPSON AcuLaser M2000D/M2000DN/M2010D/M2010DN Revision BPRODUCT DESCRIPTION Product Specifications 121.1.4 Controller SpecificationsBASIC SPECIFICATIONS EXTERNAL INTERFACES Figure 1-6. External Interfaces CPU VR5500 (300MHz)Enhanced Technology RIT (NICE)RAM Standard (on-board) Standard model: 32MB Network model: 64MB Maximum Standard model: 288MB Network model: 320MB Expansion Type SDRAM 90pin DIMM (64MB, 128MB, 256MB) Numbers of slot 1 slot ROM Type 16-bit width (3.3V) Program 16MBFont Included in the program EEPROM Serial type 128KbitControl panel Three buttons and six LEDs. No LCDPrinter language ESC/Page (B/W), FX, ESC2, I239X, PCL5e, PCL6, Adobe PostScript3 and PDF1.3 Auxiliary software „ Status Sheet printing „ EpsonNetConfig (Web) (Network model only) „ USB Ext I/F Status Sheet „ Network Status Sheet printing (Network model only) „ PS3 Status Sheet printing „ PS3 Font List printing „ PCL Font Sample printing „ Hex dump „ MAINTENANCE MODE (only for Engine Status Sheet and Print Log Report) Standard model USB 2.0 HS Parallel IEEE1284 compliant Network model USB 2.0 HS Network 100BaseTX/10BaseT [Standard model][Network model] USB ParallelNetwork USB
EPSON AcuLaser M2000D/M2000DN/M2010D/M2010DN Revision BPRODUCT DESCRIPTION List of Printer Messages 131.2 List of Printer MessagesThe following table shows the printer’s LEDs indications in each printer status. The meanings of the symbols used in the table are as follows. „ O:Lights „ ---: Lights or flashes depending on the condition „ X: Off „ Δ1: Flashes on and off at intervals of 0.3 seconds „ Δ2: Flashes on and off at intervals of 0.6 seconds „ Δ3: Flashes on for 0.6 seconds and off for 2.4 seconds Table 1-7. List of Printer Messages Sort Printer Status LEDs status Error Memory Toner Paper Ready Data Status ROM CHECK XXXOXX RAM CHECK XXOXXX Unable Clear Error X --- --- --- X --- Self Test XOXXXX Reset All Δ1 X X X Δ1 Δ1 Reset --- --- --- --- --- --- Cancel All Print Job Δ1 Δ1 --- X Δ1 --- Cancel Print Job (by panel) Δ1 X --- X Δ1 --- Writing ROM P --- --- --- --- X Δ1 Form Feed X --- --- --- --- Δ1 † Status Sheet † ESC/Page Font Sample † PCL Font Sample † ESCP2 Font Sample † FX Font Sample † 1239X Font Sample † PS3 Status Sheet † PS3 Font List † Engine Status Sheet X --- --- --- --- Δ1 Warming Up X --- --- --- Δ1 --- Offline Δ3 --- --- --- X --- Cancel Print Job (by host) Δ1 --- --- --- Δ1 --- Filling toner xx *1 min --- Δ3 Δ3 Δ3 --- --- Sleep: X --- --- --- Δ3 --- Ready X --- --- --- O --- (Printing) X --- --- --- --- --- (Communication with inactive I/F) --- --- --- --- --- --- (Job being executed (ready)) --- --- --- --- --- --- *1 : xx indicates remaining time period (minutes).
EPSON AcuLaser M2000D/M2000DN/M2010D/M2010DN Revision BPRODUCT DESCRIPTION List of Printer Messages 14Warning Reserve Job Canceled X Δ1 --- --- --- --- Form Data Canceled X Δ1 --- --- --- --- Cant Print X Δ1 --- --- --- --- Collate Disabled X Δ1 --- --- --- --- Image Optimum X Δ1 --- --- --- --- Check Paper Type X --- --- Δ1 --- --- Need Memory X Δ1 --- --- --- --- Toner Low X --- Δ1 --- --- --- Worn Main unit Δ3 --- X --- --- --- NonGenuineToner X --- Δ3 --- --- --- Table 1-7. List of Printer Messages Sort Printer Status LEDs status Error Memory Toner Paper Ready Data Error Service Req Cffff *2 OOOOOO Service Req Eggg OXXXOO Optional RAM Error OOXXX--- Write Error ROM P OOXXX--- Jam WWWW *3 OXXOX--- Install Imaging Cart OXOXX--- Image Cart ID Error OXOXX--- NonGenuine Toner Δ1 XOXX--- Image Cart R/W Error OXOXX--- Replace Main Unit O Δ2 Δ2 Δ2 X --- WWWW *3 Open OXXXX--- Install LC1 O X X Δ1 X --- Install LC2 OXX Δ1 X --- Manual Feed sss *4 Δ2 X X Δ2 Δ2 --- Cant Print Duplex Δ1 X X O X --- Paper Out ttt *5 sss *6 O X X Δ1 X --- Replace Toner O X O X X --- Paper Set ttt *5 sss *6 Δ1 X X Δ1 X --- Print Overrun Δ1 O X X X --- Mem Overflow Δ1 O X X X --- Duplex Mem Overflow Δ1 O X X X --- Invalid Data Δ1 O X X X --- Invalid PS3 O O X X X --- Table 1-7. List of Printer Messages Sort Printer Status LEDs status Error Memory Toner Paper Ready Data *2 : For details on the Service Req error code, see “3.4.3 Controller-related Service Call Errors” (p.47) . *3 : “WWWW” indicates the jammed or opened point. See “3.4.1 Paper Jam Error” (p.37) . *4 : “sss” indicates the Page Size setting of the control panel.*5 : “ttt” indicates the Paper Source setting (except for “Auto”) of the control panel.*6 : “sss” indicates the paper size setting in the Tray Menu of the control panel.
AcuLaser M2000D/M2000DN/M2010D/M2010DN Revision BOPERATING PRINCIPLES Electrical parts layout 162.1 Electrical parts layoutPOWER WRITING BOARDS Figure 2-1. Power Writing Boards 1. Main Board Assy. „ Main controller section: Controls the software such as the print data processing and provides the interface with computers. „ Engine section: Controls printer hardware such as high voltage/bias output control, paper conveying system control, and fuser temperature control, etc. 2. LVPS After full-wave rectification of AC power source input, switching for converting to 24 V DC for output. Controls the fuser heater lamp. 3. HVPS Generates main charging, developing bias, transfer bias. 4. Control Panel Board Consists the LED indicators and key switches. 5. APC PWB Generates and controls the laser beam. 6. PD PWB Controls horizontal synchronizing timing of laser beam. 7. Zener PWB Adjusts the drum surface potential. 8. Eraser lamp PWB Eliminates the residual electrostatic charge on the drum. Machine insideMachine leftMachine right 12 3 5 78 6 4
AcuLaser M2000D/M2000DN/M2010D/M2010DN Revision BOPERATING PRINCIPLES Electrical parts layout 17SWITCHES AND SENSORS Figure 2-2. Switches and sensors 1. Power switch Turns ON/OFF the AC power source. 2. Interlock switch Shuts off 24 V DC power line when the top cover is opened. 3. Cassette switch Detects open/close cassette. 4. Registration sensor Detects the timing of primary paper feed. 5. Paper sensor Detects the presence of paper in the cassette. 6. MP paper sensor Detects the presence of paper on the MP tray. 7. Exit sensor Detects paper jam in the fuser or duplex conveying section. 8. Toner sensor Detects the quantity of toner in a toner container. 9. Fuser thermistor Measures the heat roller temperature. 10. Fuser thermal cutout Shuts off the power source to the fuser heater lamp when the heat roller reaches extremely high temperature. Machine insideMachine leftMachine right 19 10 2 4 5 8 6 3 7
AcuLaser M2000D/M2000DN/M2010D/M2010DN Revision BOPERATING PRINCIPLES Electrical parts layout 18OTHER ELECTRICAL COMPONENTS Figure 2-3. Other electrical components 1. Main motor Drives the paper feed/conveying section and fuser unit. 2. Polygon motor Drives the polygon mirror. 3. Right cooling fan motor Cools the interior of machine. 4. Left cooling fan motor Cools the interior of machine. 5. Registration clutch Controls the secondary paper feed. 6. Paper feed clutch Controls the paper cassette paper feed. 7. Developing clutch Controls the toner feed. 8. Duplex solenoid Controls the paper conveying at the duplex conveying section. 9. MP paper feed solenoid Controls the MPF bottom plate of the MP tray. 10. Fuser heater lamp Heats the heat roller. 1 2 3 4 10 59 7 6 8 Machine insideMachine leftMachine right
AcuLaser M2000D/M2000DN/M2010D/M2010DN Revision BOPERATING PRINCIPLES Electrical parts layout 19OPTION PAPER FEEDER Figure 2-4. Option Paper Feeder 1. PF Main Board Controls electrical components in the paper feeder and serial communications with the printer. 2. PF paper sensor Detects the presence of paper in the cassette. 3. PF cassette switch Detects the existence of the cassette. 4. PF paper feed sensor Detects paper jam in the paper feeder. 5. PF paper feed motor Drives the paper feed mechanism in the paper feeder. 6. PF paper feed clutch Controls the drive of the paper feed roller. 7. PF paper conveying clutch Controls the drive of the middle roller. 5 1 2 3 4 6 7 Machine insideMachine leftMachine right
AcuLaser M2000D/M2000DN/M2010D/M2010DN Revision BOPERATING PRINCIPLES Technical Explanation of Print Process 202.2 Technical Explanation of Print Process2.2.1 ChargingDRUM SECTIONThe durable layer of organic photoconductor (OPC) is coated over the aluminum cylinder base. The OPC tend to reduce its own electrical conductance when exposed to light. After a cyclic process of charging, exposure, and development, the electrostatic image is constituted over the OPC layer. Since the OPC is materialized by resin, it is susceptible to damage caused by sharp edges such as a screwdriver, etc., resulting in a print quality problem. Also, finger prints can cause deterioration of the OPC layer, therefore, the drum (in the drum unit) must be handled with care. Substances like water, alcohol, organic solvent, etc., should be strictly avoided. As with all other OPC drums, the exposure to a strong light source for a prolonged period can cause a print quality problem. The limit is approximately 500 lux for less than five minutes. If the drum (drum unit) remains removed from the printer, it should be stored in a cool, dark place. Figure 2-5. Drum section MAIN CHARGER UNITAs the drum rotates in a “clean (neutral)” state, its photoconductive layer is given a uniform, positive (+) corona charge dispersed by the main charger wire. Due to high-voltage scorotron charging, the charging wire can get contaminated by oxidization after a long run. Therefore, the charger wire must be cleaned at a specific interval. Cleaning the charging wire prevents print quality problems such as black streaks. Figure 2-6. Main charger unit Figure 2-7. Drum unit and main charger unit block diagram Drum Drum shaft Drum cover ADrum cover B Main charger grid Main charger wire cleanerMain charger wire Main charger shield Main charger wire Main charger shieldMain charger grid Drum HVPS Main charger output ZenerPWB M
AcuLaser M2000D/M2000DN/M2010D/M2010DN Revision BOPERATING PRINCIPLES Technical Explanation of Print Process 212.2.2 ExposureLASER SCANNER UNIT (LSU)The charged surface of the drum is then scanned by the laser beam from the laser scanner unit. The laser beam (780 nm wavelength) beam is dispersed as the polygon motor revolves to reflect the laser beam over the drum. Various lenses and mirror are housed in the laser scanner unit, adjust the diameter of the laser beam, and focalize it at the drum surface. Figure 2-8. Exposure section Figure 2-9. Laser scanner unit Polygon motor (mirror) F-θ lens LSU mirror LSU shutter LSU flame LSU cover LSU mirror Polygon motor (mirror) PD mirror SOS lens Pin photo diode sensor (PD PWB)Laser diode (APC PWB)Callimator lens Cylindrical lens F-θ lens