Vertical Voids Service Check - Lexmark Optra C Service Manual

5045-001

Vertical Voids Service Check

FRU
1 Toner cartridge
2 Separation
Corona wire
3 Photoconductor
*
4 Fuser unit
5 Fuser unit
6 Fuser unit
7 Fuser unit
8 Mirror
9 Foreign matter
* It is possible to damage the photoconductor by running large
quantities of the same image, containing dense vertical or horizontal
lines. This is similar to how a CRT is "burned", by the same screen,
over time. Normally, the output changes sufficiently to prevent this.
Action
Does a white vertical line appear for all colors?
Remove the cartridge of the color for which it
appears from the printer. Shake the cartridge and
put it back in the printer. Replace the cartridge if the
line reappears.
Does you see improvement after cleaning the
separation corona wire?
Remove the photoconductor. Is the circumference of
the photoconductor flawed? Replace the
photoconductor, only if it is damaged.
Is the fuser entrance guide soiled? Clean the guide.
Is the circumference of the fuser upper roller
damaged? After eliminating the cause of the
damage, replace the roller.
Is the cleaning belt winding mechanism operating
abnormal? Replace the defective part.
Is the oil applying mechanism abnormal? Replace
the defective part.
Is there dirt or paper dust on the mirror in the laser/
scanner unit? Replace the laser/scanner unit.
Is foreign matter attached to the printer laser
emission hole? Check whether parts are making
contact while the print paper is winding on the
transfer drum.
Diagnostic Information 2-73