Ricoh G104 Service Manual page 15

TROUBLESHOOTING
4. TROUBLESHOOTING ................................................................. 4-1
4.1 PROCESS CONTROL RESULT ...............................................................4-1
4.2 SERVICE CALL CONDITIONS .................................................................4-2
4.2.1 SUMMARY .......................................................................................4-2
4.2.2 SC CODE DESCRIPTIONS .............................................................4-3
Engine SC.............................................................................................4-3
Controller Error ...................................................................................4-14
4.3 TROUBLESHOOTING GUIDE ................................................................4-21
4.3.1 BLANK PRINT ................................................................................4-21
4.3.2 ALL-BLACK PRINT.........................................................................4-21
4.3.3 MISSING CMY COLOR..................................................................4-22
4.3.4 LIGHT PRINT .................................................................................4-22
4.3.5 REPEATED SPOTS OR LINES ON PRINTS .................................4-23
4.3.6 DARK VERTICAL LINE IN PRINT ..................................................4-23
4.3.7 WHITE HORIZONTAL LINES OR BANDS .....................................4-24
4.3.8 MISSING PARTS OF IMAGES.......................................................4-24
4.3.9 DIRTY BACKGROUND ..................................................................4-24
4.3.10 PARTIAL CMY COLOR DOTS .....................................................4-24
4.3.11 DARK IRREGULAR STREAKS ON PRINTS................................4-24
4.3.12 CMY COLOR IRREGULAR STREAKS ........................................4-25
4.3.13 GHOSTING ..................................................................................4-25
4.3.14 UNFUSED OR PARTIALLY FUSED PRINTS ..............................4-25
4.3.15 IMAGE SKEW ..............................................................................4-25
4.3.16 BACKGROUND STAIN ................................................................4-26
4.3.17 NO PRINTING ON PAPER EDGE................................................4-26
4.3.18 IMAGE NOT CENTERED WHEN IT SHOULD BE .......................4-26
4.4 ELECTRICAL COMPONENT DEFECTS ................................................4-27
4.4.1 SENSORS ......................................................................................4-27
4.5 BLOWN FUSE CONDITIONS .................................................................4-29
Power supply unit ...............................................................................4-29
IOB......................................................................................................4-29
4.6 LEDS ........................................................................................................4-29
SERVICE TABLES
5. SERVICE TABLES....................................................................... 5-1
5.1 SERVICE PROGRAM MODE....................................................................5-1
5.1.1 SERVICE MODE OPERATION ........................................................5-1
Entering the Service Mode....................................................................5-1
Accessing the Required Program .........................................................5-2
Inputting a Value or Setting for a Service Program ...............................5-2
Exiting Service Mode ............................................................................5-2
5.1.2 REMARKS........................................................................................5-3
Display on the Control Panel Screen ....................................................5-3
Others ...................................................................................................5-4
SM
CÓPIA NÃO CONTROLADA
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CÓPIA NÃO CONTROLADA
G104/G160/G161