Ricoh J-P2 Service Manual page 8

4.4 TROUBLESHOOTING GUIDE ............................................................... 4-43
4.4.1 IMAGE QUALITY ........................................................................... 4-43
Work-flow ........................................................................................... 4-43
Detailed Explanation .......................................................................... 4-45
4.4.2 COLOR SHIFT............................................................................... 4-50
Adjustment Standard: Max. 180 mm ................................................. 4-52
Preparation......................................................................................... 4-52
How to measure the gap between color lines..................................... 4-58
4.4.3 COLOR SHIFT AFTER TRANSFER UNIT REPLACEMENT......... 4-60
Check the color shift level .................................................................. 4-60
Fusing/ Registration Roller Speed Adjustment................................... 4-60
4.4.4 BLACK OVER PRINT .................................................................... 4-63
Black Over Print Disabled .................................................................. 4-63
Black Over Print Enabled ................................................................... 4-63
4.5 ELECTRICAL COMPONENT DEFECTS................................................ 4-64
4.5.1 SENSORS ..................................................................................... 4-64
4.6 BLOWN FUSE CONDITIONS................................................................. 4-66
4.7 LEDS (BCU) ........................................................................................... 4-66
5. SERVICE TABLES...................................................................... 5-1
5.1 SERVICE PROGRAM MODE................................................................... 5-1
5.1.1 ENABLING AND DISABLING SERVICE PROGRAM MODE .......... 5-1
Entering the Service Program Mode .................................................... 5-1
Accessing the Required Program......................................................... 5-2
Inputting a Value or Setting for a Service Program .............................. 5-2
Exiting Service Program Mode............................................................. 5-2
5.1.2 REMARKS ....................................................................................... 5-3
Display on the Control Panel Screen ................................................... 5-3
Others .................................................................................................. 5-4
5.2 SERVICE PROGRAM MODE - CF CONFIGURATION ........................... 5-5
5.2.1 ENABLING AND DISABLING SERVICE PROGRAM MODE .......... 5-5
Entering SP Mode ................................................................................ 5-5
Exiting SP Mode................................................................................... 5-5
5.2.2 TYPES OF SP MODES ................................................................... 5-5
SP Mode Button Summary................................................................... 5-6
Switching Between SP Mode and Copy Mode for Test Printing........... 5-7
Selecting the Program Number ............................................................ 5-7
Exiting Service Mode ........................................................................... 5-8
5.2.3 REMARKS ....................................................................................... 5-8
Display on the Control Panel Screen ................................................... 5-8
Others .................................................................................................. 5-8
5.3 PRINTER CONTROLLER SERVICE MODE ............................................ 5-9
5.3.1 SERVICE MODE MENU .................................................................. 5-9
5.3.2 BIT SWITCH PROGRAMMING ..................................................... 5-11
5.4 PRINTER ENGINE SERVICE MODE ..................................................... 5-12
5.4.1 SERVICE MODE TABLE ............................................................... 5-12
SP1-XXX (Feed) ................................................................................ 5-12
SP2-XXX (Drum)................................................................................ 5-21
SP3-XXX (Process)............................................................................ 5-32
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