Epson AcuLaser C8500 Service Manual page 19

EPSON AcuLaser C8500
4.2.4 Operating the Diagnostics Commander ................................ 4-11
4.2.4.1 Starting Up the Diagnostics Commander ....................... 4-11
4.2.4.2 Communications Connection ......................................... 4-11
4.2.4.3 Log Display ..................................................................... 4-12
4.2.4.4 [Manual] Tab Operation .................................................. 4-13
4.2.4.5 [Auto] Tab Procedures ................................................... 4-15
4.2.5 Diagnostics Execution ........................................................... 4-22
4.2.5.1 Diagnostics Execution Procedures ................................. 4-22
4.2.5.2 Diagnostics Types .......................................................... 4-22
4.2.5.3 Test Print ........................................................................ 4-23
4.2.5.4 Digital Input Test ............................................................ 4-24
4.2.5.5 Digital Input Test Device Code ....................................... 4-24
4.2.5.6 Digital Output Test .......................................................... 4-30
4.2.5.7 Digital Output Test Device Code .................................... 4-31
4.2.5.8 Analog Input Test .......................................................... 4-40
4.2.5.9 Analog Input Test Device Code ...................................... 4-41
4.2.5.10 Analog Output Test ...................................................... 4-43
4.2.5.11 Analog Output Test Device Code ................................. 4-44
4.2.5.12 EEPROM Read ............................................................ 4-46
4.2.5.13 EEPROM Write ............................................................ 4-49
4.2.5.14 EEPROM Initialize ........................................................ 4-52
4.2.5.15 NVM List ....................................................................... 4-53
4.2.6 Count Accumulation Value Read/Write ................................. 4-67
4.2.6.1 Read ............................................................................... 4-68
4.2.6.2 Write .............................................................................. 4-69
4.2.7 Command/Status List ............................................................ 4-70
4.2.7.1 Paper, Media & Output Control ...................................... 4-70
4.2.7.2 Printing/Status Control ................................................... 4-74
4.2.7.3 Parameter Control .......................................................... 4-80
4.2.7.4 Diagnostics Control ....................................................... 4-83
4.2.8 Error / Status Code ................................................................ 4-84
Chapter 5 Troubleshooting
5.1 Overview ................................................................................................... 5-2
5.1.1 Troubleshooting Procedure ..................................................... 5-2
5.1.2 Preliminary Checks ................................................................. 5-2
5.1.3 1.3 Precautions When Performing Work ................................. 5-3
5.1.4 Self-Diagnostic Function by LCD Message ............................. 5-4
5.1.4.1 Status Message ................................................................ 5-7
5.1.4.2 Error Message .................................................................. 5-9
5.1.4.3 Warning Message .......................................................... 5-15
5.1.4.4 Service-Call Error Messages .......................................... 5-19
5.2 Level 1 FIP (Fault Isolation Procedure) ........................................... 5-21
5.2.1 Precautions When Using FIP (Fault Isolation Procedure) ..... 5-21
5.2.2 FIP Entry Chart ..................................................................... 5-22
5.3 Level 2 FIP (Fault Isolation Procedure ............................................ 5-80
5.4 Picture Image Trouble ........................................................................ 5-120
5.4.1 Picture Image Troubleshooting Entry Chart ........................ 5-120
5.5 Picture Quality FIP .............................................................................. 5-120
Chapter 6 Maintenance
6.1 About On-Site Servicing ........................................................................ 6-2
6.1.1 On-site Service Flow ............................................................... 6-3
6.1.2 Description of the On-site Service ........................................... 6-4
6.2 Maintenance Menu .................................................................................. 6-7
6.2.1 Entry to the Maintenance Menu .............................................. 6-8
6.2.2 Engine Status Sheet ............................................................... 6-9
6.3 Consumable Replacement .................................................................. 6-13
6.3.1 TONER CARTRIDGE Replacement ..................................... 6-14
6.3.2 PHOTOCONDUCTOR UNIT Replacement ........................... 6-17
6.3.3 WASTE TONER BOX Replacement ..................................... 6-19
6.4 Regularly Replaced Parts Replacement ......................................... 6-21
6.5 Main After-Sales Parts Replacement ............................................... 6-21
6.6 Installation ............................................................................................... 6-21
Chapter 7 APPENDIX
7.1 Overview .................................................................................................... 7-2
7.2 Parts List and Exploded Diagrams ..................................................... 7-2
7.2.1 How to Use the Parts List and Exploded Diagrams ................ 7-2
7.2.2 Parts List Tables ..................................................................... 7-3
7.2.3 Exploded Diagrams ................................................................. 7-7
7.3 Wiring Diagrams .................................................................................... 7-19
7.3.1 P/J Locations ......................................................................... 7-19
7.3.2 Plug and Jack (P/J) Location Tables ..................................... 7-23
7.4 Wiring Diagrams and Signal Information ........................................ 7-28
7.4.1 Overall Wiring Connection Diagram ...................................... 7-28
Revision C