Epson M2000 Service Manual
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EPSON AcuLaser M2000D/M2000DN/M2010D/M2010DN Revision BTROUBLESHOOTING Troubleshooting 52 C/D 0257 Operation overflow exception Causative Not causative Causative C/D 0258 Occurrence of break Causative Not causative Causative C/D 0800 IPL error (the controller cannot start up due to a problem of itself) Causative Not causative Not causative C/D 0998 Engine communication error (only at power-on) Causative Not causative Not causative C/D 0999 No Flash ROM program data Causative Not causative Not causative C/D 1000 Standard RAM error (no memory space or the like) Causative Not causative Not causative LED indication Classification Error code Explanation Error-causing parts (or factor) Main Board Assy. Option RAM DIMM Noise or other factor
EPSON AcuLaser M2000D/M2000DN/M2010D/M2010DN Revision BTROUBLESHOOTING Troubleshooting 53 C/D 1001 Standard RAM error (memory space is less than minimum stack size or a similar cause) Causative Not causative Not causative C/D 1002 Standard RAM error (memory space is less than standard size or a similar cause) Causative Not causative Not causative C/D 1020 RAM error (slot 0) Causative Causative Not causative C/D 1120 ROM checksum error (bit0 to 7) (program) Causative Not causative Not causative C/D 1121 ROM checksum error (bit8 to 15) (program) Causative Not causative Not causative C/D 1122 ROM checksum error (bit16 to 23) (program) Causative Not causative Not causative LED indication Classification Error code Explanation Error-causing parts (or factor) Main Board Assy. Option RAM DIMM Noise or other factor
EPSON AcuLaser M2000D/M2000DN/M2010D/M2010DN Revision BTROUBLESHOOTING Troubleshooting 54 C/D 1123 ROM checksum error (bit24 to 31) (program) Causative Not causative Not causative C/D 1151 Printer ROM checksum error Causative Not causative Not causative C/D 1152 FONT-ROM checksum error Causative Not causative Not causative C/D 1153 PS module / checksum error Causative Not causative Not causative C/D 1154 Network module / checksum error Causative Not causative Not causative C/D 1155 Expansion FONT-ROM / checksum error Causative Not causative Not causative LED indication Classification Error code Explanation Error-causing parts (or factor) Main Board Assy. Option RAM DIMM Noise or other factor
EPSON AcuLaser M2000D/M2000DN/M2010D/M2010DN Revision BTROUBLESHOOTING Troubleshooting 55 C/D 1200 EEPROM writing error Causative Not causative Not causative C/D 1210 Limit of the number of writing to EEPROM Causative Not causative Not causative C/D 1400 Engine initialization failure Causative Not causative Not causative C/D 1700 Error of loopback test of the network circuit Causative Not causative Not causative C/D 1703 Error of SRAM R/W of the network circuit Causative Not causative Not causative C/D 1999 Other hardware error Causative Not causative Not causative LED indication Classification Error code Explanation Error-causing parts (or factor) Main Board Assy. Option RAM DIMM Noise or other factor
EPSON AcuLaser M2000D/M2000DN/M2010D/M2010DN Revision BTROUBLESHOOTING Troubleshooting 56 C/D 2000 Software error Causative Not causative Not causative LED indication Classification Error code Explanation Error-causing parts (or factor) Main Board Assy. Option RAM DIMM Noise or other factor
EPSON AcuLaser M2000D/M2000DN/M2010D/M2010DN Revision BTROUBLESHOOTING Troubleshooting 573.4.4 Image Quality ProblemsBANDS OR SMUDGES THAT APPEAR AT REGULAR INTERVALSHorizontal bands or smudges appear at regular intervals due to a problem of some roller(s). Measure the interval and check if the measured value match with any of the values shown below. If it does, replace the appropriate part or unit. COMPLETELY BLANKCompletely blank pages are printed. Rollers Part/Unit to be Replaced Interval Upper registration roller Upper registration roller 25 mmLower registration roller Lower registration roller 38 mmTransfer roller Transfer roller 45 mmDeveloping roller Developing unit 63 mmHeat roller Fuser unit 73 mmPressure roller Fuser unit 79 mmPhotoconductor drum Photoconductor unit 94 mm Upper registration roller Lower registration roller Developing roller Photoconductor drum Transfer roller Pressure rollerHeat roller Sample Possible cause Checkpoint & Remedy The photoconductor unit or the developing unit is faulty. „ Open the top cover and check if the photoconductor unit or the developing unit is properly installed. „ Check if there is something wrong with terminals between the charging unit and the photoconductor unit. Transfer bias or developing bias is not normal. Replace the HVPS. „ Poor connection between the developing bias terminal (spring) and the high voltage output terminal B (J401,J402,J403) on the HVPS. „ Poor connection between the bias terminal (spring) and the transfer bias output terminal T (J201,J202,J203) on the HVPS. Check if the HVPS is installed at the correct position. If not, correct the position. The laser scanner unit is faulty. Replace the laser scanner unit. (See P. 119) The Main Board Assy. is faulty. Replace the Main Board Assy. (See P. 92)
EPSON AcuLaser M2000D/M2000DN/M2010D/M2010DN Revision BTROUBLESHOOTING Troubleshooting 58COMPLETELY BLACKCompletely solid black pages are printed. ¸ AREAS OF IMAGES ARE MISSINGAreas of the printed image are missing. Sample Possible cause Checkpoint & Remedy The charging unit is faulty. „ Open the top cover and check if the photoconductor unit is properly installed. „ Check if there is something wrong with terminals between the charging unit and the photoconductor unit. Poor connection between the main charger terminal (spring) and the main charger output terminal M on the HVPS. Check if the HVPS is installed at the correct position. If not, correct the position or replace the unit. (See P. 75) The main charger is faulty. Replace the HVPS. (See P. 75) The charging wire has breaks. Replace the charging unit. (See P. 82) The Main Board Assy. is faulty. Replace the Main Board Assy. (See P. 92) Sample Possible cause Checkpoint & Remedy Developing roller inside the developing unit is faulty. If the missing area appears at intervals of 63mm, the developing roller in the developing unit may be damaged. Replace the developing unit. (See P. 82) The photoconductor is faulty. If the missing area appears at intervals of 94mm, the photoconductor drum in the photoconductor unit may be damaged. Replace the photoconductor unit. (See P. 82) The fuser unit (heat roller or pressure roller) is faulty. If the missing area appears at intervals of 73mm or 79mm, the heat roller or the pressure roller inside the fuser unit may be damaged. Replace the fuser unit. (See P. 106) The paper is inadequate or faulty. Damp paper or paper with rough surface can cause the problem. Replace the paper with new one. Mounting failure of the transfer roller. Check if both ends of the transfer roller are properly inserted into the bearings. Clean the bearings if they are contaminated with oil or paper dust. Replace the transfer roller if necessary. (See P. 82) Transfer bias is not normal. Replace the HVPS (See P. 75) or the Main Board Assy. (See P. 92) ABC123
EPSON AcuLaser M2000D/M2000DN/M2010D/M2010DN Revision BTROUBLESHOOTING Troubleshooting 59BLACK DOTSBlack dots appear on the printout.HORIZONTAL LINEA horizontal black line appears on the printout. VERTICAL LINEA vertical black line appears on the printout.LIGHT OR FAINT IMAGEThe printed image is light or faint. Sample Possible cause Checkpoint & Remedy The photoconductor unit or the developing unit is faulty. „ If the black dots appear at intervals of 94mm, the photoconductor drum in the photoconductor unit may be damaged. Replace the photoconductor unit. (See P. 82) „ If the black dots appear at random intervals, toner may be leaking from the developing unit or the photoconductor unit. Replace the photoconductor unit or the developing unit. (See P. 82) Sample Possible cause Checkpoint & Remedy The photoconductor unit is not properly grounded. Check if the drum shaft of the photoconductor unit and the grounding tab on the printer properly contact with each other. Apply a small amount of conductive grease to the grounding tab as necessary. The photoconductor unit is faulty. Replace the photoconductor unit. (See P. 82) ABC123ABC123 Sample Possible cause Checkpoint & Remedy The charging wire has acquired oxide on its surface. Remove the photoconductor unit. Slide the green charger cleaner tab (located at upper side of the photoconductor unit) from side to side several times. When finished, put the tab back into place. (See P. 152) The photoconductor unit is faulty. If toner bands are observed on the photoconductor drum after printing, the cleaner blade in the photoconductor unit is not properly functioning. Replace the photoconductor unit. (See P. 82) The developing roller in the developing unit is faulty. Replace the developing unit. (See P. 82) Sample Possible cause Checkpoint & Remedy The paper is inadequate or faulty. Damp paper or paper with rough surface can cause the problem. Replace the paper with new one. Mounting failure of the transfer roller. Check if both ends of the transfer roller are properly inserted into the bearings. Clean the bearings if they are contaminated with oil or paper dust. Replace the transfer roller if necessary. (See P. 82) Transfer bias is not normal. Replace the HVPS (See P. 75) or the Main Board Assy. (See P. 92) ABC123
EPSON AcuLaser M2000D/M2000DN/M2010D/M2010DN Revision BTROUBLESHOOTING Troubleshooting 60DIRT ON THE BACKGROUNDThe background is dark or dirty, or toner smudges appear partially on the printout.TONER SMUDGESToner smudges appear on the top edge or non-printed side of the page. WAVY IMAGEThe printed image on the upper right side (scanning start position) of the page is wavy. Sample Possible cause Checkpoint & Remedy Electric potential on the drum surface is not normal. Replace the photoconductor unit. (See P. 82) The main charger grid is faulty. Clean the main charger grid. (See P. 152) The developing roller in the developing unit is faulty. Replace the developing unit. (See P. 82) Sample Possible cause Checkpoint & Remedy Paper feed and conveying paths are contaminated with toner. Check the following points for toner smudges, and clean the points if necessary.„ Paper shoot guide „ Paper conveying path „ Photoconductor unit „ Bottom part of the developing unit „ Inlet of the fuser unit The transfer roller is faulty. Clean the transfer roller if it is contaminated with toner. Or print low coverage pages continuously until the smudges disappear. ABC123ABC123 Sample Possible cause Checkpoint & Remedy The polygon motor in the developing unit is faulty. Replace the laser scanner unit. (See P. 119) The Main Board Assy. is faulty. Replace the Main Board Assy. (See P. 92) Line is wavy
EPSON AcuLaser M2000D/M2000DN/M2010D/M2010DN Revision BTROUBLESHOOTING Troubleshooting 613.4.5 Electrical Problems Problem Possible cause Checkpoint & Remedy The machine does not operate when the power switch is turned on. The AC power source is not powered. Measure the input voltage. The power plug is not properly inserted. Make sure the power plug is properly inserted into the power source. The top cover is not completely closed. Close the top cover completely. The power code has breaks. Check the code for electric continuity. If no continuity is found, replace the code. The power switch is faulty. Check the contact points of the power switch for electric continuity. If no continuity is found, replace the code. The fuse on the power supply board has burned out. Replace the LVPS. (See P. 75) The interlock switch is faulty. Check both terminals of the interlock switch for electric continuity. If no continuity is found, replace the LVPS. (See P. 75) The LVPS is faulty. Replace the LVPS. (See P. 75) The Main Board Assy. is faulty. Replace the Main Board Assy. (See P. 92) Right cooling fan motor does not operate. The right cooling fan motor coils have breaks. Check the coils for electric continuity. If no continuity is found, replace the right cooling fan motor. (See P. 69) Poor connection between the right cooling fan motor and the Main Board Assy. (YC815). „ Reconnect the connector cable properly. „ Check the connector cable for electric continuity. If no continuity is found, replace the cable. The Main Board Assy. is faulty. Replace the Main Board Assy. (See P. 92) Left cooling fan motor does not operate. The left cooling fan motor coils have breaks. Check the coils for electric continuity. If no continuity is found, replace the left cooling fan motor. (See P. 113) Poor connection between the left cooling fan motor and the LVPS (YC104). „ Reconnect the connector cable properly. „ Check the connector cable for electric continuity. If no continuity is found, replace the cable. The Main Board Assy. is faulty. Replace the Main Board Assy. (See P. 92) Registration clutch does not operate. The registration clutch coils have breaks. Check the coils for electric continuity. If no continuity is found, replace the registration clutch. (See P. 98) Poor connection between the registration clutch and the Main Board Assy. (YC808). „ Reconnect the connector cable properly. „ Check the connector cable for electric continuity. If no continuity is found, replace the cable. The Main Board Assy. is faulty. Replace the Main Board Assy. (See P. 92) Paper feed clutch does not operate. The paper feed clutch coils have breaks. Check the coils for electric continuity. If no continuity is found, replace the paper feed clutch. (See P. 98) Poor connection between the paper feed clutch and the Main Board Assy. (YC808). „ Reconnect the connector cable properly. „ Check the connector cable for electric continuity. If no continuity is found, replace the cable. The Main Board Assy. is faulty. Replace the Main Board Assy. (See P. 92) Problem Possible cause Checkpoint & Remedy