Canon imageRUNNER ADVANCE C3330 Series, Service Manual

Page: 704 / 1225

COPIER (Service mode for copier) > DISPLAY (State display mode) > HV-STS
2ATVC 2 Dspl secondary transfer ATVC tgt current
Detail To display the decuple value of the target current value of secondary transfer ATVC control.
Use Case When identifying the cause at the occurrence of an image failure
Display/Adj/Set Range 0 to 1500
Unit uA
Amount of Change per
Unit
0.1
■ CCD
COPIER (Service mode for copier) > DISPLAY (State display mode) > CCD
TARGET-B 2 Shading target value (B)
Detail To display the shading target value of Blue.
Continuous display of 0 (minimum) or FFFF (maximum) is considered a failure of the Scanner Unit.
Use Case At scanned image failure
Display/Adj/Set Range 0 to FFFF
Appropriate Target Value 512 - 2047
TARGET-G 2 Shading target value (G)
Detail To display the shading target value of Green.
Continuous display of 0 (minimum) or FFFF (maximum) is considered a failure of the Scanner Unit.
Use Case At scanned image failure
Display/Adj/Set Range 0 to FFFF
Appropriate Target Value 512 - 2047
TARGET-R 2 Shading target value (R)
Detail To display the shading target value of Red.
Continuous display of 0 (minimum) or FFFF (maximum) is considered a failure of the Scanner Unit.
Use Case
At scanned image failure
Display/Adj/Set Range
0 to FFFF
Appropriate Target Value
512 - 2047
GAIN-OB 2 Gain level of Img Sensor odd bit(B)
Detail To display the Blue gain level adjustment value in odd-numbered bit on CMOS Sensor of Scanner
Unit.
Continuous display of upper limit is considered a failure of the Scanner Unit/Main Controller PCB.
When the value is out of the target value range, image failure or E302 (shading error) may have
occurred. Identify the cause according to the value.
Use Case - When replacing the Main Controller PCB
- When replacing the Scanner Unit
- At scanned image failure
Display/Adj/Set Range 0 to 143
Appropriate Target Value 0 - 143
GAIN-OG 2 Gain level of Img Sensor odd bit(G)
Detail To display the Green gain level adjustment value in odd-numbered bit on CMOS Sensor of Scanner
Unit.
Continuous display of upper limit is considered a failure of the Scanner Unit/Main Controller PCB.
When the value is out of the target value range, image failure or E302 (shading error) may have
occurred. Identify the cause according to the value.
Use Case - When replacing the Main Controller PCB
- When replacing the Scanner Unit
- At scanned image failure
Display/Adj/Set Range 0 to 143
Appropriate Target Value 0 - 143
8. Service Mode
692