Image Problem Troubleshooting - Oki C5500 Maintenance Manual

7.5.3 Image Problem Troubleshooting

(1) Color is totally pale (Fig.7.2 A ) .............................................................................. 217
(1-1)Color is pale .................................................................................................... 217
(2) Background is dirty (Fig.7.2 B ) .............................................................................. 218
(2-1)Background is dirty (partly) ............................................................................. 218
(2-2)Background is dirty (totally) ............................................................................. 218
(3) Blank Print (Fig.7.2 C ) ........................................................................................... 219
(3-1)Blank on the whole page ................................................................................. 219
(4) Vertical lines are printed ......................................................................................... 220
(4-1)Thin vertical lines (with color) (See Fig.7.2 D ) ............................................... 220
(4-2)Thin vertical lines (without color) (See Fig.7.2 F ) ........................................... 220
(5) Cyclic Print Trouble (Refer to Fig.7.2 E ) ................................................................ 221
(5-1)Vertical cyclic print trouble .............................................................................. 221
(6) Color drift is wide. ................................................................................................... 222
(6-1)"IN ADJUSTING COLOR REGISTRATION" is shown only a short time ........ 222
(6-2)Although REG ADJUST TEST of the engine maintenance function is OK, ... 222
(7) Solid Black Print ..................................................................................................... 223
(7-1) Solid black on a full page ............................................................................... 223
Note! Read a content of EEPROM chip on the old board and copy it to a new board
when exchanging a PU board (PRX PCB).
A
Light or faded image
on whole page
D
Vertical black belt or line
43085101TH Rev.1
B
Dirty Background
E
Defective image of
regular interval
Figure 7.2
Oki Data CONFIDENTIAL
C
Blank
F
Vertical white belt or line
216 /