Troubleshooting The Abnormal Images - Oki C911 Maintenance Manual

Oki Data CONFIDENTIAL

4.5.3 Troubleshooting the abnormal images

(1) Color has faded-out and blurred entirely. (Refer to Figure 4-2 A) ..................4-81
(1-1) Color are faded-out and blurred. ......................................................4-81
(2) Stain on white print. (Refer to Figure 4-2 B) ...................................................4-82
(2-1) Stain on white print (Partial stain).....................................................4-82
(2-2) Stain on white print (overall stain) ....................................................4-82
(2-3) Stain on white print (Paper top and bottom stain) ............................4-82
(3) White print (Refer to Figure 4-2 C) .................................................................4-83
(3-1) White print over entire page .............................................................4-83
(4) Black banding/black streaking in vertical direction .........................................4-83
(4-1) Thin vertical line (with color) (Refer to Figure 4-2 D) ........................4-83
(4-2) Thin vertical line (without color) (Refer to Figure 4-2 F) ..................4-83
(5) Periodic abnormalities (Refer to Figure 4-2 E) ...............................................4-84
(5-1) Periodic abnormality occurs in vertical direction ..............................4-84
(6) Significant color misregistration ....................................................................4-84
(6-1) Color misregistration occurs. ...........................................................4-84
(6-2) Thought REG ADJUST TEST of engine maintenance function results
ok, color misregistration occurs. ......................................................4-84
(7) Solid black printing. ........................................................................................4-85
(7-1) Solid black printing over the whole page ..........................................4-85
(8) Banding/streaking in vertical direction............................................................4-85
(8-1) Banding/streaking in vertical direction (Refer to Figure 4-2 G) .......4-85
(8-2) Causing of Slipping and Wearing on the printing image
(Refer to Figure 4-2 H) ......................................................................4-85
(9) White dot on printing.. ....................................................................................4-86
(9-1) White dot of streaking in horizontal direction (Refer to Figure 4-2 I) ......4-86
(9-2) White dot on the printing (Refer to Figure 4-2 J) ..............................4-86
(10) Stain of around Solid printing. ........................................................................4-86
(10-1) Stain of around Solid printing. (Refer to Figure 4-2 K) .....................4-86
(11) Glossy banding/streaking in 130mm cycle vertical direction . ........................4-86
(11-1) Glossy banding/streaking in 130mm cycle vertical direction
45530603TH Rev.2
(Refer to Figure 4-2 L) ............4-86
A B
Overall faded-out Stain on white print
Blurred
E F
White banding/
Cyclic abnormality
white streaking
in vertical direction
H Causing of Slipping
I
White dot of streaking in
and Wearing on the
horizontal direction
printing image
130mm
130mm
Paper feed direction
L
Glossy banding/streaking in 130mm cycle vertical direction
4. TROUBLESHOOTING PROCEDURE
C
Entirely white
D
Black banding/
black streaking
in vertical direction
Paper feed direction
G
Banding/streaking in vertical direction
K
J White dot on the printing
Stain of around Solid printing
Figure 4-2
4-80