Oki OkiFax 1050 Service Manual page 209

%3.20 Cleaning
3.20 Cleaning
The image drum needs cleaning since it gets dirty after having printed copies for a number of times.
The two kinds of cleaning are listed in the table below:
Cleaning Type
Image Drum Cleaning
CH (charge roller) cleaning
Function
This cleaning removes excess
toner that has accumulated on
the Image Drum. The excess
toner is removed to the
developing roller where it is
recycled.
This cleaning removes the
residual toner on the charging
roller surface. The toner is
removed by moving to the
recording paper from charging
roller and image drum.
Remarks
Cleaning is automatically
performedwhen the number of
prints exceed 10 sheets or the
one-job operation ends. (At
the end of communication or
copy operations)
Manual operation
• Technical function (self test
mode)