Epson Aculaser M 2000 Service Manual
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EPSON AcuLaser C9200NRevision D OPERATING PRINCIPLES Operating principle of Option mechanism 91 Confidential2.3.2.3 OperationSWITCHBACK MECHANISM† Switchback operation The Paper Exit Roller of the main body is used to subject the 1-sided print to a switchback sequence so that the 1-sided print is to be transported through the Duplex Unit. Switchback operation † Paper Exit Roller drive coupling mechanism When the Duplex Unit is mounted, the tip of the Duplex Unit Lever raises the Idle Lever to cut off the drive from the main body (Fusing Rollers) and the Paper Exit Roller is driven by the Switchback Motor. Figure 2-87. Paper Exit Roller drive coupling mechanism † Switchback Motor Control Rotation of the Switchback Motor is controlled by the signals output from the Duplex Control Board. 4066T2C516DA Transporting the Paper into Duplex UnitPaper Exit Roller/1Paper Exit Roller/2 4066T2C518DA Paper Exit Roller/2 Idle Lever Switchback Motor (M1 DU) Duplex Unit Lever Paper Exit Roller/1
EPSON AcuLaser C9200NRevision D OPERATING PRINCIPLES Operating principle of Option mechanism 92 ConfidentialTRANSPORT CONTROLRotation speed of the Duplex Unit Transport Motor is controlled by the signals output from the Duplex Control Board.The following two types of printing methods are available.† Operations in 2-sided printing with a single sheet of paper resident in the system † Operations in 2-sided printing with more than two papers 24066T2C501DA 1. The first sheet of paper is taken up and fed in from the Main Body Drawer and the Main Body starts the first print cycle to produce the print image of the second page of the original. Paper Exit Roller 2. Immediately before the 1-sided print leaves the Paper Exit Roller, the direction of rotation of the Paper Exit Roller is reversed and the 1-sided print is transported toward and into the Duplex Unit. 2 4066T2C502DA 3. The 1-sided print moves through the Duplex Unit and is directly subject to the second print cycle without being stopped. 2 4066T2C503DA 4. The main body carries out the second print cycle to produce the print image of the first page of the original on the other side of the 1-sided print. 1 2 4066T2C504DA 5. The paper of 2-sided print is exited. 24066T2C506DA 1. The first sheet of paper is taken up and fed in from the Main Body Drawer and the Main Body starts the first print cycle to produce the print image of the second page of the original. Paper Exit Roller2 4066T2C507DA 2. Immediately before the first 1-sided print leaves the Paper Exit Roller, the direction of rotation of the Paper Exit Roller is reversed and the first 1-sided print is transported toward and into the Duplex Unit. 3. At the same time, the second sheet of paper is taken up and fed into the main body. 4 2 4066T2C508DA 4. The Main Body carries out the first print cycle for the second sheet of paper to produce the print image of the fourth page of the original. 5. At the same time, the first 1-sided print is transported through the Duplex Unit.
EPSON AcuLaser C9200NRevision D OPERATING PRINCIPLES Operating principle of Option mechanism 93 Confidential6. The Main Body produces the print image of the first page of the original on the first 1-sided print that has been fed through the Duplex Unit. 7. At the same time, the second sheet of paper is subjected to a switchback sequence at the exit section and fed into the Duplex Unit. 8. At the same time, the third sheet of paper is taken up and fed into the main body. 1 2 6 4 4066T2C509DA 9. While feeding the first 2-sided print out, main body produces the print image of the 6th page of the original on the third sheet of paper. 10. The second sheet of paper waits before the Duplex Unit Transport Motor 3 until the third sheet of paper switches back. 1 4 2 64066T2C510DA 1 4 26 4066T2C511DA 11. Immediately before the first 1-sided print leaves the Paper Exit Roller, the direction of rotation of the Paper Exit Roller is reversed and the first 1-sided print for the third sheet is transported toward and into the Duplex Unit. 12. At the same time, the second sheet of paper is fed into the Main Body. 1 4 2 6 34066T2C512DA 13. The Main Body carries out the first print cycle for the second sheet of paper to produce the print image of the third page of the original. 14. At the same time, the first 1-sided print for the third is transported through the Duplex Unit. 15. At the same time, the forth sheet of paper is taken up and fed into the Main Body. 1 8 234 6 4066T2C513DA 16. While feeding the second 2-sided print out, the Main Body produces the print image of the 8th page of the original on the fourth sheet of paper. 17. The third sheet of paper will wait in front of the Duplex Unit Transport Roller 3 until the fourth sheet of paper has operated switch back sequence.18. Steps 11 through 17 are repeated.
EPSON AcuLaser C9200NRevision D OPERATING PRINCIPLES Other Control 94 Confidential2.4 Other Control2.4.1 Fan Control2.4.1.1 Construction Figure 2-88. Construction 2.4.1.2 Function 4039T2C131AA Suction Fan Motor (M10) Ozone Ventilation Fan Motor (M14) Power Supply Cooling Fan Motor/1 (M8) Cooling Fan Motor/1 (M12)Cooling Fan Motor/2 (M22) Fusing Cooling Fan Motor (M13) Fusing Cooling Fan Motor/2 (M11) Table 2-13. Function Motor Name Control Conditions Power Supply Cooling Fan Motor/1 (M8) It exhausts the accumulated heat inside the unit in order to prevent temperature from increasing at DC power supply part and the controller part. Ozone Ventilation Fan Motor (M14) • A white belt may occur on the image because of the lower sensitivity of the PC Drum due to ozone accumulated around the PC Drum Charge Corona. In order to avoid this trouble, ozone filter removes the ozone inside the PC Drum Charge Corona to keep the sensitivity of the PC Drum.• Ozone accumulated around the PC Drum Charge Corona will be absorbed by Ozone filter and be removed. Fusing Cooling Fan Motor/1 (M13) • Odor accumulated between TC part and Fusing part is absorbed by the odor filter to be removed.• In order to keep the temperature between TC part and fusing part as well as motor part, heat accumulated inside the unit will be exhausted. Fusing Cooling Fan Motor/2 (M11) • When the paper with toner heated at fusing part exit while still at high temperature, toner may be transferred to other paper on the exit tray.• In order to avoid this, air is applied to cool the toner and paper. Suction Fan Motor (M10) • Paper will be sucked between 2nd Transfer part and fusing part, so it will have a stable behavior and go smoothly into the Fusing Roller. The air inside will be exhausted outside the unit.• A Dust Filter/Vertical Transfer are mounted inside the Ventilation Duct in order to remove dust the Suction Fan sucked with the air inside the unit. Cooling Fan Motor/1 (M12) Heat accumulated inside the unit will be discharged in order to avoid temperature increase, etc., inside the transfer part (Transfer Belt and Transfer Clutch). Cooling Fan Motor/2 (M22) Heat accumulated inside the unit will be discharged in order to avoid temperature increase, etc., of the upper part inside the machine as well as around the Color PC Motor.
EPSON AcuLaser C9200NRevision D OPERATING PRINCIPLES Other Control 95 Confidential2.4.2 Engine Section Parts Operated When the Main Power Switch is Turned ON† When the Main Power Switch is turned ON, the Mechanical Control Board detects it and sends a control signal to the DC Power Supply. This turns ON the Sleep Relay and the DC Power Supply supplies engine section parts with 3.3 VDC, 5 VDC, and 24 VDC. The Heater Relay is also turned ON and the Fusing Heater Lamps are supplied with AC power. † If Sleep is activated, the Sleep Relay is turned OFF, thus shutting off power supply to the engine section. Even when Sleep is activated, DC power supply to the Controller Board is continued. † If print data is received with the Sleep Relay turned OFF, the relay is turned ON by the signal provided by the Controller Board and power is thereby supplied. 4039T2C133AA 1 Front Door SW /Right Door SW Front Door SW 5V3.3V Power supply to board 24V Heater Relay Sleep Relay Main Power Switch Main DC Power SupplySub DC Power Supply2 3 4 5 No Voltage Connected Parts 1AC Power SupplyHeater Lamps 2 DC24VFan Motors, Solenoids, Clutches, Erase Lamp, Polygon Motor, 2nd Image Transfer Pressure/Retraction Motor, MP 3 DC24VMain Motor, PC Motor, Developing Motor, Fusing Drive Motor, Toner Supply Motor, Duplex Option, High Voltage Unit 4 DC5V CPU, ADC, Sensors, Control Panel 5 DC5V Power supply to board
EPSON AcuLaser C9200NRevision D Troubleshooting Overview 97 Confidential3.1 OverviewFor efficient troubleshooting, verify the condition of the trouble carefully, and refer to the troubleshooting procedures given in this chapter, the operating principles (chapter 2) and the appendix (chapter 7).3.1.1 Procedure Outline for TroubleshootingPerform troubleshooting work according to the following flowchart. . 3.1.2 Preliminary CheckBefore starting troubleshooting, make sure that the following conditions are all met.1. The power supply voltage must be within the specification limits. (Measure the voltage at the electric outlet.)2. The POWER CORD must be free from damage, short circuit or breaking, and should be connected properly to the power source.3. The printer must be grounded properly.4. The printer should not be located in a place where it can be exposed to too high or low temperature, too high or low humidity, or abrupt temperature change.5. The printer should not be located near waterworks, humidifiers, heaters or flames, in a dusty atmosphere, or in a place where the printer can be directly exposed to air blasts from an air conditioner.6. The printer should not be located in a place where volatile or inflammable gases are produced.7. The printer should not be located in a place where it can be exposed to direct sunlight.8. The printer must be located in a well-ventilated place.9. The printer must be placed on a solid, stable and flat surface.10. The paper used must conform to the specifications. (Standard paper is recommended.)11. There should be no errors in handling of the printer.12. The periodic replacement parts must have been replaced at the right time.13. The two firmwares for the controller and the engine controller should be the latest version. For “Location (electrical parts)” described from next page, refer to “ 7.1 Connection Diagram ” (p338) Step Reference 1 Verify the condition of the trouble • Information from the operator• Test on the printer to check the trouble status• Check the status sheet• Check the engine status sheet• Check the print quality 2 Preliminary Check Refer to 3.1.2 Preliminary Check (p. 97) 3 Troubleshooting Refer to 3.1.4 Troubleshooting Flowchart (p. 98) 4 Check if the trouble returns to normal --- 5 Preventative maintenance Refer to Chapter 6 MAINTENANCE (p. 331) 6 Finish ---
EPSON AcuLaser C9200NRevision D Troubleshooting Overview 98 Confidential3.1.3 Precautions in Performing Troubleshooting Work1. Be sure to unplug the POWER CORD before starting troubleshooting work unless instructed to plug it.2. In case of performing work with covers removed, the interlock and the safety switches turned ON, and the power turned ON, disconnect the connector on the PH Unit if not necessary.3. In case of performing work with covers removed, the interlock and the safety switches turned ON, and the power turned ON, be careful of a high voltage supplied from the high-voltage power supply.4. When touching any hot surfaces, take care not to burn yourself.5. Wear a wrist strap to discharge static electricity from body of worker. 3.1.4 Troubleshooting Flowchart Never touch any live parts unnecessarily when the power is on. Never touch the power switch/inlet part even after the power switch is turned OFF as the part is alive unless the power cord is unplugged.In case of performing work with covers removed, the interlock and the safety switches turned ON, and the power turned ON, a laser beam may be emitted from the PH Unit.In case of performing work with covers removed, the interlock and the safety switches turned ON, and the power turned ON, never touch the high-voltage power supply and any other high voltage output part as a high voltage may be output from high voltage unit. Fix the trouble with reference to the 3.4 Power supply trouble (p. 134). Yes Yes Yes Yes No No NoNo Fix the trouble with reference to the 3.2 Jam Display (p. 99). Fix the trouble with reference to the 3.3 Service Call Error (p. 107). Fix the trouble with reference to the 3.5 Image quality problem (p. 136). Is it a power supply trouble? Is it an image quality problem? Is an error message (error code) displayed on the control panel? Is it a jam error code? Fix the trouble with reference to the Ch2 OPERATING PRINCIPLES (p. 31) and Ch7 APPENDIX (p. 337).Start
EPSON AcuLaser C9200NRevision D Troubleshooting Jam Display 99 Confidential3.2 Jam Display3.2.1 Checking a paper jam type and jammed locationWHEN A PAPER JAM ERROR MESSAGE IS DISPLAYED ON THE CONTROL PANEL.Find out the jammed location according to the message on the Control Panel, and perform the related troubleshooting. Message Jammed Location Jam processing location Reference Paper Jam A, B, H • Fusing/exit section • A cover• B cover• H cover (Fusing Unit) p.102 A • Transfer section • A cover p.103 A, G, E2, E3, E4 • Vertical Transport • A cover•G section• E2 cover• E3 cover• E4 cover p.105 A, G • MP Tray paper feed • A cover•MP tray•G section p.104 A, G • Paper feed in the cassette 1 •Cassette 1• A cover•G section p.104 E2 • Paper feed in the first optional cassette unit• Vertical Transport • First optional cassette unit• E2 cover p.105 E3 • Paper feed in the second optional cassette unit • Vertical Transport • Second optional cassette unit• E3 cover E4 • Paper feed in the third optional cassette unit• Vertical Transport • Third optional cassette unit• E4 cover D, A • Duplex Transport section • D cover (Duplex Unit) p.106 D, A, G • Duplex Unit pre-registration section p.106
EPSON AcuLaser C9200NRevision D Troubleshooting Jam Display 100 ConfidentialWHEN A PAPER JAM ERROR MESSAGE IS NOT DISPLAYED ON THE CONTROL PANEL.Print the Error Log Sheet and find out a jam type and the jammed location referring to jam code on the sheet. The jam code is expressed in 8-digit hexadecimal and LSB is added at the end of code.Note *1 : Values printed on the Error Log Sheet. *2 : When no applicable code is found in the above table, the paper jam is occurring at multiple points. In such case, convert the hexadecimal jam code on the Error Log Sheet into binary, and find out combinations from the table. Example: 0088 (hexadecimal) → 00000000 10001000 (binary) → 00000000 10000000 + 00000000 00001000 → Vertical Transport (Vertical Transport of the lower cassette) + Fourth paper feed (Cassette 4) Fourth Byte Third Byte Second, First Byte*2 Media Error Jam type Jammed Location Hexadecimal*1 Description Hexadecimal*1 Description Hexadecimal*1 bit Binary Description 10 Media error (Check Media Type) 3F Remnant Paper Jam --- 15 10000000 00000000 Reserve 00 No Media Error 3E Jam under Control --- 14 1000000 00000000 Reserve 2A Jam at Duplex section (cover) 2000 13 100000 00000000 Exit section 08 Jam at Exit section --- 12 10000 00000000 Reserve 05 Jam at Second Image Transfer section 0800 11 1000 00000000 Duplex Transport section (Duplex Unit Cover) 02 Jam at Vertical Transport in Lower section 0400 10 100 00000000 Second Image Transfer section 1A Misfeed at Duplex Section (pre-registration feed) --- 9 10 00000000 Reserve 17 Misfeed at MP tray --- 8 1 00000000 Reserve 14 Misfeed at Cassette 4 0080 7 10000000 Vertical Transport (Vertical Transport in the Lower Cassette) 13 Misfeed at Cassette 3 0040 6 1000000 Pre-registration Feed section (Duplex Unit Pre-registration) 12 Misfeed at Cassette 2 0020 5 100000 Manual Paper Feed (MP tray) 11 Misfeed at Cassette 1 --- 4 10000 Reserve 00 No Jam 0008 3 1000 Fourth Paper Feed (Cassette 4) 0004 2 100 Third Paper Feed (Cassette 3) 0002 1 10 Second Paper Feed (Cassette 2) 0001 0 1 First Paper Feed (Cassette 1)