PRINTER
November 29, 1999
2-18
Drum Cleaning
The cleaning blade [A] removes any toner remaining on the drum after the image is
transferred to the paper. The toner remaining on the drum is scraped off by the
cleaning blade and transferred to the collection area. The mylar sheet [B] prevents
the toner from dropping out of the cleaning unit.
The toner collection coil [C] and scraper [D] improve the collection of waste toner.
There is no toner recycling mechanism.
To discharge the OPC drum surface, the LD is switched on after every 10 sheets
printed (if the 10-page interval expired during a job, the machine waits until the end
of the job).
Service Call Conditions for the Development Section
Sub-Code
Error Code
Description
54
Development bias PWM is over the upper limit for 200
ms
55
9-29
Charge bias PWM is over the upper limit for 200 ms
H306D512.WMF
[A]
[C]
[B]
[D]