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8.4.16
Uneven image density ................................................................................... 8-277
8.4.17
Faded image (low density, abnormal gray balance) ...................................... 8-278
8.4.18
Image dislocation in feeding direction............................................................ 8-279
8.4.19
Jittering image ............................................................................................... 8-280
8.4.20
Poor cleaning................................................................................................. 8-281
8.4.21
Uneven light distribution ................................................................................ 8-282
8.4.22
Blotched image .............................................................................................. 8-283
8.4.23
Black streaks on image leading edge during scanning.................................. 8-284
8.5
Other Errors .................................................................................................................. 8-284
8.5.1
When "SET FUSER UNIT" is displayed......................................................... 8-284
9. REPLACEMANT OF HDD/PC BOARDS...................................................................... 9-1
9.1
Installation and Replacement of PC boards...................................................................... 9-1
9.1.1
System control PC board (SYS board) .............................................................. 9-1
9.1.2
Hard disk (HDD) ................................................................................................ 9-1
9.1.3
LGC board ......................................................................................................... 9-2
9.1.4
MOT2 board....................................................................................................... 9-3
9.1.5
Switching regulator ............................................................................................ 9-3
9.1.6
High-voltage transformer ................................................................................... 9-4
9.1.7
SRAM board ...................................................................................................... 9-5
9.2
Precautions and Procedures for Replacing PC Boards and HDD .................................... 9-6
9.2.1
Precautions when replacing PC boards............................................................. 9-6
9.2.2
HDD fault diagnosis ........................................................................................... 9-7
9.2.3
Precautions and procedures when replacing the HDD ...................................... 9-9
9.2.4
Precautions and Procedures when replacing the SYS board .......................... 9-14
9.2.5
Procedures when replacing the LGC board..................................................... 9-18
9.2.6
Procedure when replacing the battery on LGC board ..................................... 9-19
9.2.7
Procedures when replacing the SLG board .................................................... 9-19
9.2.8
Precautions and Procedures when replacing SRAM board............................. 9-20
9.2.9
Procedures when replacing EEPROM............................................................. 9-26
9.2.10
Firmware confirmation after the PC board/HDD replacement ......................... 9-27
9.2.11
License re-registration using the one-time dongle ........................................... 9-28
9.3
Precautions for Installation of GP-1070 and Disposal of HDD/Board ............................. 9-30
9.3.1
Precautions for Installation of GP-1070 and Disposal of HDD/Board .............. 9-30
9.3.2
Precautions when disposing of the SYS board................................................ 9-30
9.3.3
Precautions when disposing of the SRAM board ............................................ 9-30
10. REMOTE SERVICE..................................................................................................... 10-1
10.1 Auto Supply Order........................................................................................................... 10-1
10.1.1
Outline ............................................................................................................. 10-1
10.1.2
Setting item...................................................................................................... 10-2
10.1.3
Setting procedure ............................................................................................ 10-4
10.1.4
Order sheet format......................................................................................... 10-13
10.2 Service Notification ....................................................................................................... 10-17
10.2.1
Outline ........................................................................................................... 10-17
10.2.2
Setting............................................................................................................ 10-18
10.2.3
Items to be notified ........................................................................................ 10-25
11. FIRMWARE UPDATING ............................................................................................. 11-1
11.1 General Description ........................................................................................................ 11-1
11.2 Firmware Updating with USB Media ............................................................................... 11-7
11.2.1
Master data/System ROM/Engine ROM/Scanner ROM / RADF ROM ............ 11-9
11.3 Patch Updating with USB Media ................................................................................... 11-22
11.3.1
Master data/System ROM ............................................................................. 11-24
11.4 Firmware Updating with PWA-DWNLD-350-JIG1......................................................... 11-30
11.4.1
Writing the data to the download jig (PWA-DWNLD-350-JIG1)..................... 11-31
11.4.2
System ROM ................................................................................................. 11-34
11.4.3
Engine ROM .................................................................................................. 11-36
11.5 Firmware Updating with K-PWA-DLM-320.................................................................... 11-38
11.5.1
Scanner ROM ................................................................................................ 11-39
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