Ricoh A-P4 - Page 18

DIP Switches...................................................................................................................................................290
Controller: DIP SW2.................................................................................................................................290
I/O Board: DIP SW101...........................................................................................................................290
Using Debug Log...........................................................................................................................................291
Setting Up "Save Debug Log"..................................................................................................................291
To Switch Debug Log On.................................................................................................................291
To Select the Target for the Debug Log File....................................................................................292
To Select Events................................................................................................................................293
To select one or more memory modules for recording in the debug log file...............................295
Retrieving the Debug Log from the HDD.................................................................................................297
More About Debug Log............................................................................................................................298
SP5857-015: SD to SD (Any).........................................................................................................298
SP5857-016: Make HDD LogFile..................................................................................................298
SP5857-017: Make SD Log File....................................................................................................298
6. Details
Machine Overview........................................................................................................................................299
Component Layout....................................................................................................................................299
Paper Path..................................................................................................................................................300
Drive Layout...............................................................................................................................................301
Board Layout..................................................................................................................................................303
Board Block Diagram...............................................................................................................................303
Controller Block Diagram.........................................................................................................................305
Printing Process Overview.............................................................................................................................308
Laser Exposure...............................................................................................................................................310
Laser Exposure Overview ........................................................................................................................310
Auto Power Control (APC)........................................................................................................................311
Dual-Beam Writing...................................................................................................................................311
Laser Beam Pitch Change Mechanism....................................................................................................312
LD Safety Switches....................................................................................................................................313
Photoconductor Unit (PCDU)........................................................................................................................314
Overview of the PCDU..............................................................................................................................314
Drum Drive Mechanism............................................................................................................................315
Drum Pawls................................................................................................................................................315
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