Canon Color imageRUNNER C4580 Service Manual - page 655
Chapter 19
19-10
7. CCD
T-19-11
8. DPOT
Displaying Photosensitive Drum Surface Potential Control Data
T-19-12
COPIER>DISPLAY>CCD
Sub item
Description
level.
TARGET-B
Use it to check the shading target value for B.
2
TARGET-G
Use it to check the shading target value for G.
2
TARGET-R
Use it to check the shading target value for R.
2
GAIN-OB
Use it to indicate the gain level adjustment value (for color) of odd-numbered blue bits of the CCD.
2
GAIN-OG
Use it to indicate the gain level adjustment value (for color) of odd-numbered green bits of the CCD.
2
GAIN-OR
Use it to indicate the gain level adjustment (for color) of odd-numbered red bits of the CCD.
2
GAIN-EB
Use it to indicate the gain level adjustment value (for color) of even-numbered blue bits of the CCD.
2
GAIN-EG
Use it to indicate the gain level adjustment (for color) of even-numbered green bits of the CCD.
2
GAIN-ER
Use it to indicate the gain level adjustment value (for color) of even-numbered red bits of the CCD.
2
COPIER>DISPLAY>DPOT
Sub item
Description
level.
MEMO:
For items other than DPOT-K, displaying value at the time of the latest potential control.
2TR-PPR
Use it to check the output value of the paper separation voltage of the secondary transfer DC voltage
generated last.
2
2TR-BASE
Use it to check the output value of the reference voltage of the secondary transfer DC voltage generated
last.
2
1TR-DC-Y
Use it to check the output value of the primary transfer DC voltage (Y) generated last.
2
1TR-DC-M
Use it to check the output value of the primary transfer DC voltage (M) generated last.
2
1TR-DC-C
Use it to check the output value of the primary transfer DC voltage (C) generated last.
2
1TR-DC-K
Use it to check the output value of the primary transfer DC voltage (K) generated last.
2
CHG-AC-Y
output value of primary charge AC voltage (Y) output last
2
CHG-AC-M
output value of primary charge AC voltage (M) output last)
2
CHG-AC-C
output value of primary charge AC voltage (C) output last)
2
CHG-AC-K
output value of primary charge AC voltage (Bk) output last)
2