Ricoh A230, Service Manual, Page: 96 / 1134

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DRUM CHARGE
2-33
A230/A231/A232 SM
2.5.3 ID SENSOR PATTERN PRODUCTION TIMING
An ID sensor pattern is made during the machine initialization (after the main
power switch or operation switch is turned on) and after finishing a copy job in
which 10 (default value) or more copies were made.
2.5.4 DRUM CHARGE ROLLER CLEANING
Because the drum charge roller [A] is always in contact with the drum, it gets dirty
easily. So, the cleaning pad [B] is also in contact with the drum charge roller all the
time to clean the surface of the drum charge roller.
The pin [C] at the rear of the cleaning pad holder touches the cam gear [D], and
this gear moves the cleaning pad from side to side. This movement improves the
cleaning.
New Vref Decision
........
1 10 9 8 3 2
Vref Decision
1 3 2
........
12 15 14 13
Series of copies
ID sensor pattern
Vsp/Vsg
ID sensor pattern
Vsp/Vsg
New Vref Decision
A231D535.WMF
A230D303.WMF
[A]
[B]
[C] [D]