Canon imageRUNNER 2545 Series Service Manual Digest page 56

Adjustment value of offset level on CCD (green)
● (#SCAN> READER> DISPLAY> CCD> OFST-R)
Adjustment value of offset level on CCD (red)
● (#SCAN> READER> DISPLAY> CCD> OFST-O)
Adjustment value of offset level in odd bit on CCD
● (#SCAN> READER> DISPLAY> CCD> OFST-E)
Adjustment value of offset level in even bit on CCD
To judge if this adjustment value is correct when an image fault attributed to CCD occurs.
Appropriate guideline: 0 to 255
● (#SCAN> READER> DISPLAY> CCD> GAIN-B)
Adjustment value of gain level on CCD (blue)
● (#SCAN> READER> DISPLAY> CCD> GAIN-G)
Adjustment value of gain level on CCD (green)
(#SCAN> READER> DISPLAY> CCD> GAIN-R)
●
Adjustment value of gain level on CCD (red)
● (#SCAN> READER> DISPLAY> CCD> GAIN-O)
Adjustment value of gain level in odd bit on CCD
● (#SCAN> READER> DISPLAY> CCD> GAIN-E)
Adjustment value of gain level in even bit on CCD
To judge if this adjustment value is correct when an image fault attributed to CCD occurs.
Appropriate guideline: 0 to 255
● (#SCAN> READER> I/O> R-CON> P001)
The P001 port indication of the reader relay PCB
Display the I/O state of the sensor of the reader unit.
Bit Name Display contents
Bit0 Copyboard cover open/closed 1: Open
sensor 1 (S26)
Bit1 CCD HP sensor (S22) 1: HP
Bit2 Not used. 1: Open
Bit3 Copyboard cover open/closed 1: Document present
sensor 0 (S21)
Bit4 Sub scanning original size 1: Document present
sensor 0 (S24/29)
Bit5 Sub scanning original size 1: Document present
sensor 1 (S25/28)
Bit6 Sub scanning original size 1: Document present
sensor 2 (S23)
Bit7 Sub scanning original size 1: Document present
sensor 3 (S27)
Bit8 - 15 Not used.
● (#SCAN> READER> I/O> FEEDER> P001)
The P001 port indication of the ADF driver PCB
Display the I/O state of the sensor of the ADF unit.
Bit Name
Bit0 Document tray width sensor 2 (PS2)
Bit1 Document tray width sensor 1 (PS1)
Bit2 Not used.
Bit3 ADF fan (FM1) motor lock detection
Bit4 Delivery reversal sensor (SR3)
Bit5 Read sensor (SR2)
Bit6 Timing sensor (SR4)
Bit7 Registration sensor (SR1)
Bit8 Document length sensor 2 (SR8)
Bit9 Document length sensor 1 (SR7)
Bit10 Release motor HP sensor (SR11)
Bit11 Cover open/closed sensor (SR6)
Bit12 Last document detection sensor (SR7)
Bit13 Document set sensor (SR5)
● (#SCAN> READER> ADJUST> ADJ-XY> ADJ-X)
Adjustment of scanning system image lead edge position (image's scan-start position in
Remarks
ADF open angle: 15
degrees
ADF open angle: 25
degrees or 5 degrees
Sensor for market-related
measures
Sensor for market-related
measures
T-4-33 T-4-33
Display contents Remarks
1: Document present
1: Document present
1: Locked
1: Document present
1: Document present
1: Document present
1: Document present
1: Document present
0: relaease
0: Open
1: Document present
0: Document present
T-4-34 T-4-34
4-23
4