Canon imageRUNNER ADVANCE 4551i Service Manual page 630

COPIER > DISPLAY > CCD
GAIN-ER 2
Detail
Use Case
Adj/Set/Operate Method
Display/Adj/Set Range
Appropriate Target Value
LAMP-BW 2
Detail
Use Case
Adj/Set/Operate Method
Display/Adj/Set Range
Appropriate Target Value
Supplement/Memo
LAMP-CL 2
Detail
Use Case
Adj/Set/Operate Method
Display/Adj/Set Range
Appropriate Target Value
Supplement/Memo
LAMP2-BW 2
Detail
Use Case
Adj/Set/Operate Method
Display/Adj/Set Range
Appropriate Target Value
Supplement/Memo
LAMP2-CL 2
Detail
Use Case
Adj/Set/Operate Method
Display/Adj/Set Range
Appropriate Target Value
Supplement/Memo
Gain lvl of Read Sensor even bit(R):frt
To display the Red gain level adjustment value in even-numbered bit on the Reading Sensor of
Scanner Unit (for front side).
Continuous display of upper limit is considered a failure of the Scanner Unit/Reader 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.
- When replacing the Reader Controller PCB
- At scanned image failure
N/A (Display only)
0 to 65535
0 - 143
Dspl LED light intnsty adj VL:B&W, front
To display the LED light intensity adjustment value of Scanner Unit (for front side) in B&W scanning
mode.
When image failure occurs at front side scanning in black mode
N/A (Display only)
55 to 275
100 - 275
LED cannot be replaced individually. Replace the Scanner Unit.
Dspl LED light intnsty adj VL:clr, front
To display the LED light intensity adjustment value of Scanner Unit (for front side) in color scanning
mode.
When image failure occurs at front side scanning in color mode
N/A (Display only)
55 to 275
100 - 275
LED cannot be replaced individually. Replace the Scanner Unit.
Dspl LED light intnsty adj VL: B&W, back
To display the LED light intensity adjustment value of Scanner Unit (for back side) in B&W scanning
mode.
When image failure occurs at back side scanning in black mode.
N/A (Display only)
55 to 275
100 - 275
LED cannot be replaced individually. Replace the Scanner Unit.
Dspl LED light intnsty adj VL: clr, back
To display the LED light intensity adjustment value of Scanner Unit (for back side) in color scanning
mode.
When image failure occurs at back side scanning in color mode
N/A (Display only)
55 to 275
100 - 275
LED cannot be replaced individually. Replace the Scanner Unit.
617
8. Service Mode