Id Sensor Pattern Production Timing; Drum Charge Roller Cleaning - Ricoh A230 Service Manual

2.5.3 ID SENSOR PATTERN PRODUCTION TIMING

1 2 3 8
........
Vref Decision
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

[C]
[B]
[A]
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.
A230/A231/A232
ID sensor pattern
Vsp/Vsg
9 10 1 2 3
Series of copies
New Vref Decision
[D]
2-33
DRUM CHARGE
ID sensor pattern
Vsp/Vsg
12 13 14 15
........
New Vref Decision
A230D303.WMF
A231D535.WMF
SM