Ricoh J-P3 Service Manual page 8

5.4.3 FILE ARRANGEMENT .................................................................. 5-76
How the Program Works .................................................................... 5-76
Example ............................................................................................. 5-76
5.4.4 UPDATING .................................................................................... 5-77
Procedure........................................................................................... 5-77
Error Handling .................................................................................... 5-78
Power Failure ..................................................................................... 5-78
5.4.5 NVRAM DATA UPLOAD/DOWNLOAD.......................................... 5-79
Uploading NVRAM Data .................................................................... 5-79
Downloading NVRAM Data ................................................................ 5-80
5.4.6 ERROR CODE TABLE .................................................................. 5-81
5.5 SD CARD APPLI MOVE ......................................................................... 5-82
5.5.1 OVERVIEW.................................................................................... 5-82
5.5.2 MOVE EXEC.................................................................................. 5-83
5.5.3 UNDO EXEC.................................................................................. 5-84
5.6 CONTROLLER SELF-DIAGNOSTICS.................................................... 5-85
5.6.1 OVERVIEW.................................................................................... 5-85
5.6.2 DETAILED SELF-DIAGNOSTICS.................................................. 5-86
5.7 USER PROGRAM MODE....................................................................... 5-87
Starting a User Program .................................................................... 5-87
Quitting a User Program .................................................................... 5-87
Menu List ........................................................................................... 5-87
5.8 DIP SWITCHES...................................................................................... 5-88
Controller Board ................................................................................. 5-88
BCU Board ......................................................................................... 5-88
6. DETAILED DESCRIPTIONS ....................................................... 6-1
6.1 MODEL J-P3 AND MODEL J-P2 .............................................................. 6-1
6.2 OVERVIEW .............................................................................................. 6-2
6.2.1 COMPONENT LAYOUT .................................................................. 6-2
6.2.2 DRIVE LAYOUT............................................................................... 6-3
6.2.3 BOARD STRUCTURE ..................................................................... 6-4
Overview .............................................................................................. 6-4
Descriptions ......................................................................................... 6-5
6.3 LASER EXPOSURE ................................................................................. 6-7
6.3.1 OVERVIEW...................................................................................... 6-7
6.3.2 OPTICAL PATH ............................................................................... 6-8
6.3.3 LD SAFETY SWITCH ...................................................................... 6-9
6.4 PHOTOCONDUCTOR UNIT .................................................................. 6-10
6.4.1 OVERVIEW.................................................................................... 6-10
6.4.2 DRUM CHARGE AND QUENCHING ............................................ 6-11
6.4.3 DRUM CLEANING......................................................................... 6-12
6.4.4 WASTE TONER COLLECTION..................................................... 6-13
Waste Toner Path .............................................................................. 6-13
Waste Toner Vibrator ......................................................................... 6-14
6.5 PAPER FEED LINE SPEED ................................................................... 6-15
6.6 IMAGE TRANSFER AND PAPER SEPARATION .................................. 6-16
6.6.1 OVERVIEW.................................................................................... 6-16
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