Canon imageRUNNER 2545, Service Manual, Page: 234 / 362

8
8
8-24
8-24
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 Remarks
Bit0 Copyboard cover open/closed
sensor 1 (S26)
1: Open ADF open angle: 15
degrees
Bit1 CCD HP sensor (S22) 1: HP
Bit2 Not used. 1: Open
Bit3 Copyboard cover open/closed
sensor 0 (S21)
1: Document present ADF open angle: 25
degrees or 5 degrees
Bit4 Sub scanning original size
sensor 0 (S24/29)
1: Document present
Bit5 Sub scanning original size
sensor 1 (S25/28)
1: Document present
Bit6 Sub scanning original size
sensor 2 (S23)
1: Document present Sensor for market-related
measures
Bit7 Sub scanning original size
sensor 3 (S27)
1: Document present Sensor for market-related
measures
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 Display contents Remarks
Bit0 Document tray width sensor 2 (PS2) 1: Document present
Bit1 Document tray width sensor 1 (PS1) 1: Document present
Bit2 Not used.
Bit3 ADF fan (FM1) motor lock detection 1: Locked
Bit4 Delivery reversal sensor (SR3) 1: Document present
Bit5 Read sensor (SR2) 1: Document present
Bit6 Timing sensor (SR4)
Bit7 Registration sensor (SR1) 1: Document present
Bit8 Document length sensor 2 (SR8) 1: Document present
Bit9 Document length sensor 1 (SR7) 1: Document present
Bit10 Release motor HP sensor (SR11) 0: relaease
Bit11 Cover open/closed sensor (SR6) 0: Open
Bit12 Last document detection sensor (SR7) 1: Document present
Bit13 Document set sensor (SR5) 0: Document present
●
(#SCAN> READER> ADJUST> ADJ-XY> ADJ-X)
Adjustment of scanning system image lead edge position (image's scan-start position in
T-8-33
T-8-34