I have never bought a service manual which is as competely readable as this althogh it was a scanned pdf. Thank you for this succesful manual also cheaper than other sites.
Thanks for a very good and readable servicemanual. Just what I needed as a "dinosaur technician". I really recommmend this site and will come back.
Åsbjörn
The best diagram that I used in a long time. Everything was right on te money. It was easy and fast. Iwoiuld but again when I need a service manual.
Text excerpt from page 134 (click to view)
Trouble (5) Black and blurred vertical stripes or band
Action to be taken At the scanner Check the following components: - CIS unit At the printer side Clean the paper path which may be contaminated with toner. Slide the wire cleaner to clean the corona wire inside the drum unit. Make sure that the wire cleaner is returned to its home position. Replace the toner cartridge. Replace the drum unit. Replace the heat-fixing unit.
(6) Black vertical streaks on gray background
At the printer side Clean the laser beam window (glass) on the laser unit. Replace the laser unit.
(7) Black and blurred horizontal stripes
At the printer side Slide the wire cleaner to clean the corona wire inside the drum unit. If they appear at 94-mm or 17-mm intervals, replace the drum unit. If they appear at 54-mm intervals, replace the heat-fixing unit. Replace the high-voltage power supply PCB.
(8) Horizontal lines
At the printer side Check the connection between the right end of the paper feed roller and the grounding wire. (Contact in the illustration given on page 6-28.)