Ricoh G176 Service Manual page 15

4.3.1 IMAGE ADJUSTMENT ..............................................................4-25
Registration Adjustment ................................................................4-25
Parallelogram Image Adjustment ..................................................4-25
4.3.2 ELECTRICAL DEFECTS ...........................................................4-26
Fuses ............................................................................................4-28
4.3.3 SKEW ADJUSTMENT ...............................................................4-29
4.3.4 STREAKS IN THE SUB SCAN DIRECTION..............................4-29
4.3.5 MISCELLANEOUS PROBLEMS................................................4-30
SERVICE TABLES
5. SERVICE TABLES...................................................................5-1
5.1 SERVICE PROGRAM MODE ...............................................................5-1
5.1.1 SERVICE PROGRAM MODE: OVERVIEW.................................5-1
Entering the Service Mode ..............................................................5-1
Setting a Service Program...............................................................5-2
Exiting Service Mode.......................................................................5-2
5.2 PRINTER CONTROLLER SERVICE MODE ........................................5-3
5.2.1 SERVICE MODE MENU ("1. SERVICE MENU").........................5-3
5.2.2 BIT SWITCH PROGRAMMING ...................................................5-3
5.3 PRINTER ENGINE SERVICE MODE ...................................................5-4
5.3.1 SERVICE MODE TABLE .............................................................5-4
SP1-xxx: Feed.................................................................................5-4
SP2-xxx: Drum ..............................................................................5-10
SP3-xxx: Process ..........................................................................5-12
SP5-xxx: Mode ..............................................................................5-14
SP7-xxx: Data Log ........................................................................5-56
SP8XXX: Data Log 2.....................................................................5-71
5.4 FIRMWARE UPDATE .........................................................................5-82
5.4.1 TYPE OF FIRMWARE ...............................................................5-82
5.4.2 PRECAUTIONS .........................................................................5-82
Handling SD Cards........................................................................5-82
Upload/Download ..........................................................................5-83
Network Connection ......................................................................5-83
5.4.3 MACHINE FIRMWARE UPDATE ..............................................5-83
5.5 NVRAM DATA UPLOAD/DOWNLOAD...............................................5-85
SM iii G176/G177/G176L