Canon iR2200 Service Handbook page 145

<HV-STS>
Indicates the measurements taken of voltage/current.
PRIMARY
Indicates the level of current of primary charging in relation to photosensi-
tive drum resistance detection control (APVC).
Unit: µA
Reference:
•
•
•
TR
Indicates the mode selected for the level of current of transfer charging.
0: transfer constant voltage mode, 1: transfer constant voltage mode (mid),
2: transfer constant voltage mode (max.), 3: transfer constant voltage mode
(min.)
BIAS
Indicates the developing bias DC level (in V)
TR-V
Indicates the voltage level in relation to transfer charging roller resistance
detection control (ATVC). (in V)
Reference:
1500 to 6000V:
6001V or more:
1499V or less:
<SENSOR>
Indicates the condition of sensors.
DOC-SZ
Indicates the size of the original detected by the original size sensor.
If 353 µA or less, the drum unit can well be used.
353<485 µA or less, the drum unit may be used without a problem.
485 µA or more, the drum unit should be replaced.
the transfer charging system is normal.
the transfer charging roller may have a locking fault.
leakage and a transfer charging roller fault are possi-
bilities.
CHAPTER 5 SERVICE MODE
COPIER>DISPLAY>HV-STS
COPIER>DISPLAY>SENSOR
5-17