Lexmark Optra C Service Manual - Page 105

5045-001 Vertical Voids Service Check FRU Action 1 Toner cartridge 2 Separation Corona wire 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? 3 Photoconductor Remove the photoconductor. Is the circumference of * the photoconductor flawed? Replace the photoconductor, only if it is damaged. 4 Fuser unit 5 Fuser unit 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. 6 Fuser unit 7 Fuser unit 8 Mirror 9 Foreign matter 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. * 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. Diagnostic Information 2-73