Epson Aculaser M 2000 Service Manual
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EPSON AcuLaser C9200NRevision D Troubleshooting Image quality problem 141 Confidential LOW IMAGE DENSITY (DECREASE OF ID)A. Typical Faulty ImagesB. Troubleshooting ProcedureStep Section Check Item Result Action 1 Photoconductor Unit Dirty on the outside. YES Clean. 2 PH Unit The surface of the PH Window is dirty. YES Clean with cleaning jig. 3 TCR Sensor window The color TCR Sensor window on the LED Assy is dirty. YES Clean. 4 Transfer Belt Unit Transfer Belt makes positive contact with plates on rails. NO Check and correct contacts. 5 Cam gear operates properly NO Change Transfer Belt Unit. (p.162) 6 Hopper Unit Connectors are loose. YES Reconnect. 7 Gear is cracked. YES Change gear. 8 Replenish Toner Execute the Toner Admix in the Maintenance Menu to charge toner. NO Go to next step. 9 Adjust Density Change the setting value for Max Density in the Printer Adjust Menu. NO Go to next step. ABCDE ABCDE ABCDE ABCDE ABCDE 4036fs4036c0 10 The problem has been eliminated through the checks of steps up to 9. NO Change Photoconductor Unit.→ Change Controller Board. (p.198)→ Change PH Unit. (p.175)→ Change High Voltage Unit (Image Transfer, Neutralizing). (p.230) Step Section Check Item Result Action
EPSON AcuLaser C9200NRevision D Troubleshooting Image quality problem 142 Confidential GRADATION REPRODUCTION FAILUREA. Typical Faulty ImagesB. Troubleshooting Procedure FOGGY BACKGROUNDA. Typical Faulty ImagesB. Troubleshooting Procedure Step Section Check Item Result Action 1 Photoconductor Unit Dirty on the outside. YES Clean. 2 PH Unit The surface of the PH Window is dirty. YES Clean with cleaning jig. 3 TCR Sensor window TCR Sensor window is dirty. YES Clean. 4 Adjust Density Change the setting value for Max Density in the Printer Adjust Menu. NO Go to next step. 5 The problem has been eliminated through the checks of steps up to 5. NO Change Photoconductor Unit.→ Change Controller Board. (p.198)→ Change PH Unit. (p.175)→ Change High Voltage Unit (Image Transfer, Neutralizing). (p.230) 4036fs4048c0 4036fs4049c0 Step Section Check Item Result Action 1 Photoconductor Unit Dirty on the outside. YES Clean. 2 PH Unit The surface of the PH Window is dirty. YES Clean with cleaning jig. 3 TCR Sensor window The color TCR Sensor window is dirty. YES Clean. 4 Adjust Density Change the setting value for Max Density in the Printer Adjust Menu. NO Go to next step. 5 Blur Margin Change the setting value for Blur Margin in the Printer Adjust Menu. NO Go to next step. 6 The problem has been eliminated through the checks of steps up to 5. NO Change Photoconductor Unit.→ Change Controller Board. (p.198)→ Change PH Unit. (p.175)→ Change High Voltage Unit (Image Transfer, Neutralizing). (p.230) 4036fs4030c0 ABCD ABCD ABCD ABCD ABCD
EPSON AcuLaser C9200NRevision D Troubleshooting Image quality problem 143 Confidential VOID AREAS, WHITE SPOTSA. Typical Faulty ImagesB. Troubleshooting Procedure COLORED SPOTSA. Typical Faulty ImagesB. Troubleshooting Procedure Step Section Check Item Result Action 1 Image Check There are void areas at the front side or high density section. YES Refer to p.141. 2 There is void area at the rear side section. YES Change the setting value of TR XXX in the Printer Adjust Menu. 3 Photoconducto r Unit The surface of the PC Drum is scratched. YES Change Photoconductor Unit. 4 Dirty on the outside. YES Clean. 5 Toner Cartridge Foreign matter or caked toner in the Toner Cartridge. YES Remove foreign matter. 4036fs4050c0 4036fs4051c0 Void areas White spots Step Section Check Item Result Action 1 Photoconductor Unit Developing bias contact terminal makes good connection. NO Clean contact terminal and check terminal position. 2 The surface of the PC Drum is scratched. YES Change Photoconductor Unit. 3 Dirty on the outside. YES Clean. AAAA 4036fs4052c0 Colored spots
EPSON AcuLaser C9200NRevision D Troubleshooting Image quality problem 144 Confidential BLURRED IMAGEA. Typical Faulty ImagesB. Troubleshooting Procedure BLANK PRINT, BLACK PRINTA. Typical Faulty ImagesB. Troubleshooting Procedure Step Section Check Item Result Action 1 PH Unit The surface of the PH Window is dirty. YES Clean with cleaning jig. 2 Photoconductor Unit Dirty on the outside. YES Clean. 3 The problem has been eliminated through the checks of steps up to 2. NO Change Photoconductor Unit. (p.162)→ Change PH Unit. (p.175) 4036fs4031c0 Blurred image Step Section Check Item Result Action 1 Image Check A blank print occurs. YES Check PH Unit connector for proper connection. 2 Photoconductor Unit Coupling of PU drive mechanism is installed properly. NO Check and correct drive transmitting coupling. Change PU. 3 The PC Drum Charge Corona voltage contact or PC Drum ground contact of the Photoconductor Unit is connected properly. NO Check, clean, or correct the contact. 4 High Voltage Unit (Image Transfer, Neutralizing) Connector is connected properly. NO Reconnect. 5 The problem has been eliminated through the check of step 4. NO Change High Voltage Unit (Image Transfer, Neutralizing). (p.230) → Change Controller Board. (p.198)→ Change PH Unit. (p.175) 4036fs4038c0 4036fs4039c0 Blank print Black print
EPSON AcuLaser C9200NRevision D Troubleshooting Image quality problem 145 Confidential UNEVEN IMAGEA. Typical Faulty ImagesB. Troubleshooting ProcedureStep Section Check Item Result Action 1 Toner Cartridge The Toner Cartridge of every color is surely installed. NO Re-install it. 2 PH Unit PH Unit is surely installed. NO Re-install it. 3 Uneven pitch occurs in 3.0 mm pitch. YES Replace PH Unit Stopper. (p.175) 4 Toner Cartridge There is any stain or breakage on the Drive section of the Toner Cartridge. YES Clean/replace the Toner Cartridge. 5 Photoconductor Unit There is any stain, damage or abrasion on the PC drum. YES Change Photoconductor Unit. (p.162) 6 2nd Transfer Roller There is any stain, damage, deformation or abrasion on the Transfer roller. YES Replace the 2nd Transfer Roller. (p.169) 7 Fusing Unit There is any stain, damage, deformation or abrasion on the Roller and Drive section of the Fusing Unit. YES Replace the Fusing unit. (p.162) 8 The problem has been eliminated through the check of step 7. NO Change Transfer Belt Unit. (p.162) 4138fs4507c0
EPSON AcuLaser C9200NRevision D Troubleshooting Image quality problem 146 Confidential WHITE LINES IN SUB SCAN DIRECTION, WHITE BANDS IN SUB SCAN DIRECTION, COLORED LINES IN SUB SCAN DIRECTION, AND COLORED BANDS IN SUB SCAN DIRECTIONA. Typical Faulty ImagesB. Troubleshooting ProcedureStep Section Check Item Result Action 1 Transfer Belt Unit Fingerprints, oil, or other foreign matter is evident on the Transfer Belt YES Clean with specified solvent. (Refer to Chapter 6 MAINTENANCE (p. 331) ) 2 Transfer Belt is dirty or scratched. YES Clean dirty belt with a soft cloth.Change Transfer Belt Unit that has damages. 3 Cleaning Blade is not effective in removing toner completely. YES Clean Cleaning blade.Change Transfer Belt Unit. (p.162) 4 2nd Transfer Roller 2nd Transfer Roller is dirty or scratched. YES Change 2nd Transfer Roller. (p.169) 5 Paper path There is foreign matter on paper path. YES Remove foreign matter. 6 Image Transfer Paper Separator Fingers are damaged or dirty. YES Clean or change. 7 Fusing Unit Fusing Entrance Guide Plate is dirty or damaged. YES Clean.Change Fusing Unit. (p.162) 8 Fusing Paper Separator Fingers are dirty. YES Clean. 4036fs4023c0 4036fs4024c0 4036fs4021c0 4036fs4022c0 White lines in Sub Scan DirectionWhite bands in Sub Scan DirectionColored lines in Sub Scan DirectionColored bands in Sub Scan Direction 9 The problem has been eliminated through the checks of steps up to 8. NO Change Controller Board. (p.198) Step Section Check Item Result Action
EPSON AcuLaser C9200NRevision D Troubleshooting Image quality problem 147 Confidential WHITE LINES IN MAIN SCAN DIRECTION, WHITE BANDS IN MAIN SCAN DIRECTION, COLORED LINES IN MAIN SCAN DIRECTION, AND COLORED BANDS IN MAIN SCAN DIRECTIONA. Typical Faulty ImagesB. Troubleshooting ProcedureStep Section Check Item Result Action 1 Transfer Belt Unit Fingerprints, oil, or other foreign matter is evident on the Transfer Belt. YES Clean with specified solvent (Refer to Chapter 6 MAINTENANCE (p. 331) ) 2 Transfer Belt is dirty or scratched. YES Clean dirty belt with a soft cloth. Change Transfer Belt if belt is damaged. 3 Cleaning Blade is not effective in removing toner completely. YES Clean Cleaning Blade.Change Transfer Belt Unit. (p.162) 4 2nd Transfer Roller 2nd Transfer Roller is dirty or scratched. YES Change 2nd Transfer Roller. (p.169) 5 Paper path There is foreign matter on paper path. YES Remove foreign matter. 6 Image Transfer Paper Separator Fingers are damaged or dirty. YES Clean or change. 4036fs4025c0 4036fs4026c0 4036fs4027c0 4036fs4028c0 White lines in Main Scan DirectionWhite bands in Main Scan DirectionColored lines in Main Scan DirectionColored bands in Main Scan Direction 7 Fusing Unit Fusing Entrance Guide Plate is dirty or damaged. YES Clean.Change Fusing Unit. (p.162) 8 Fusing Paper Separator Fingers are dirty. YES Clean. 9 Neutralizing Brush The resistance values between the Neutralizing brush and the ground terminal is not ∞. NO Check the contact. Modify. Change Neutralizing brush. 10 The problem has been eliminated through the checks of steps up to 9. NO Change Controller Board. (p.198) Step Section Check Item Result Action
EPSON AcuLaser C9200NRevision D Troubleshooting Image quality problem 148 Confidential UNEVEN DENSITY IN SUB SCAN DIRECTIONA. Typical Faulty ImagesB. Troubleshooting Procedure UNEVEN DENSITY IN MAIN SCAN DIRECTIONA. Typical Faulty ImagesB. Troubleshooting Procedure Step Section Check Item Result Action 1 Transfer Belt Unit Fingerprints, oil, or other foreign matter is evident on the Transfer Belt. YES Clean with specified solvent. (Refer to Chapter 6 MAINTENANCE (p. 331) ) 2 Transfer Belt is dirty or scratched. YES Clean dirty belt with a soft cloth.Change Transfer Belt Unit that has damages. 3 Terminal is dirty. YES Clean. 4 2nd Transfer Roller 2nd Transfer Roller is installed properly. NO Reinstall. 5 2nd Transfer Roller is dirty or scratched. YES Change 2nd Transfer Roller Unit. (p.169) 6 The problem has been eliminated through the checks of steps up to 5. NO Change Transfer Belt Unit. (p.162) 4036fs4043c0 4036fs4044c0 Step Section Check Item Result Action 1 Transfer Belt Unit Fingerprints, oil, or other foreign matter is evident on the Transfer Belt. YES Clean with specified solvent. (Refer to Chapter 6 MAINTENANCE (p. 331) ) 2 Transfer Belt is dirty or scratched. YES Clean dirty belt with a soft cloth. Change Transfer Belt Unit that has damages. 3 Terminal is dirty. YES Clean. 4 2nd Transfer Roller 2nd Transfer Roller is installed properly. NO Reinstall. 5 2nd Transfer Roller is dirty or scratched. YES Change 2nd Transfer Roller. (p.169) 6 The problem has been eliminated through the checks of steps up to 5. NO → Change Transfer Belt Unit. (p.162)→ Change High Voltage Unit (Image Transfer, Neutralizing). (p.230) 4036fs4046c0 4036fs4047c0
EPSON AcuLaser C9200NRevision D Troubleshooting Image quality problem 149 Confidential LOW IMAGE DENSITY (DECREASE OF ID)A. Typical Faulty ImagesB. Troubleshooting ProcedureStep Section Check Item Result Action 1 Paper Paper is damp. YES Change paper to one just unwrapped from its package. Install Paper Dehumidifying Heater. 2 Transfer Belt Unit Terminal is dirty. YES Clean. 3 2nd Transfer Roller 2nd Transfer Roller is installed properly. NO Reinstall. 4 Charge Neutralizing Cloth is not separated and ground terminal is connected properly. NO Correct or change. 5 IDC Sensor Sensor is dirty. YES Clean with blower brush. 6 Replenish Toner Execute the Toner Admix in the Maintenance Menu to charge toner. NO Go to next step. 7 Adjust Density Change the setting value for Max Density in the Printer Adjust Menu. NO Go to next step. ABCDE ABCDE ABCDE ABCDE ABCDE 4036fs4036c0 8 The problem has been eliminated through the checks of steps up to 6. NO Change Transfer Belt Unit. (p.162)→ Change Controlzler Board. (p.198)→ Change High Voltage Unit (Image Transfer, Neutralizing). (p.230) Step Section Check Item Result Action
EPSON AcuLaser C9200NRevision D Troubleshooting Image quality problem 150 Confidential POOR COLOR REPRODUCTIONA. Typical Faulty ImagesB. Troubleshooting ProcedureStep Section Check Item Result Action 1 Paper Paper is damp. YES Change paper to one just unwrapped from its package. Install Paper Dehumidifying Heater. 2 Transfer Belt Unit Terminal is dirty. YES Clean. 3 2nd Transfer Roller 2nd Transfer Roller is installed properly. NO Reinstall. 4 Charge Neutralizing Cloth is not separated and ground terminal is connected properly. NO Correct or change. 5 IDC Sensor Sensor is dirty. YES Clean with blower brush. 6 Adjust Density Change the setting value for Max Density in the Printer Adjust Menu. NO Go to next step. 4036fs4058c0 7 The problem has been eliminated through the checks of steps up to 6. NO Change Transfer Belt Unit. (p.162)→ Change Controller Board. (p.198)→ Change High Voltage Unit (Image Transfer, Neutralizing). (p.230) Step Section Check Item Result Action