Oki C5650 - 7.5.3 Image Problem Troubleshooting; Image Problem Troubleshooting

Oki Data CONFIDENTIAL
43827101TH Rev.2 222 /
Figure 7.2
Light or faded image
on whole page
A
Vertical black belt or lineD
Dirty Background
B
Defective image of
regular interval
E
Blank
C
Vertical white belt or lineF
7.5.3 Image Problem Troubleshooting
(1) Color is totally pale (Fig.7.2 A ) .............................................................................. 221
(1-1)Color is pale .................................................................................................... 221
(2) Background is dirty (Fig.7.2 B ) .............................................................................. 222
(2-1)Background is dirty (partly) ............................................................................. 222
(2-2)Background is dirty (totally)............................................................................. 222
(3) Blank Print (Fig.7.2 C ) ........................................................................................... 223
(3-1)Blank on the whole page................................................................................. 223
(4) Vertical lines are printed ......................................................................................... 224
(4-1)Thin vertical lines (with color) (See Fig.7.2 D ) ............................................... 224
(4-2)Thin vertical lines (without color) (See Fig.7.2 F )........................................... 224
(5) Cyclic Print Trouble (Refer to Fig.7.2 E ) ................................................................ 225
(5-1)Vertical cyclic print trouble .............................................................................. 225
(6) Color drift is wide. ................................................................................................... 226
(6-1)"IN ADJUSTING COLOR REGISTRATION" is shown only a short time ........ 226
(6-2)Although REG ADJUST TEST of the engine maintenance function is OK, ... 226
(7) Solid Black Print ..................................................................................................... 227
(7-1) Solid black on a full page ............................................................................... 227
Note! Read a content of EEPROM chip on the old board and copy it to a new board
when exchanging a PU PCB.