Image Problem Troubleshooting - Olivetti d-color MF1600 Service Manual

6.5.3 Image Problem Troubleshooting

(1) Color is totally pale (Figure 7.2 A ) .................................................................................205
(1-1) Color is pale ........................................................................................................205
(2) Background is dirty (Figure 7.2 B ) ................................................................................206
(2-1) Background is dirty (partly) .................................................................................206
(2-2) Background is dirty (totally).................................................................................206
(3) Blank Print (Figure 7.2 C )..............................................................................................207
(3-1) Blank on the whole page.....................................................................................207
(4) Vertical lines are printed .................................................................................................208
(4-1) Thin vertical lines (with color) (See Figure 7.2 D ) ..............................................208
(4-2) Thin vertical lines (without color) (See Figure 7.2 F ) .........................................208
(5) Cyclic Print Trouble (Refer to Figure 7.2 E ) ...................................................................209
(5-1) Vertical cyclic print trouble ..................................................................................209
(6) Color drift is wide. ...........................................................................................................210
(6-1) "IN ADJUSTING COLOR REGISTRATION" is shown only a short time .............210
(6-2) Although REG ADJUST TEST of the engine maintenance function is OK, Color
drift is seen .........................................................................................................210
(7) Solid Black Print .............................................................................................................211
(7-1) Solid black on a full page ....................................................................................211
Note! When replacing the PU board (PRX PCB), please read the content on the EEPROM chip
of the old board and copy it to the new board..
A
Light or faded image
on whole page
D
Vertical black belt or line
194
B
Dirty Background
E
Defective image of
regular interval
Figure 7.2
Service Manual
C
Blank
F
Vertical white belt or line
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