Canon F-1, Руководство по обслуживанию

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Technology > Controls > Reader > Original size detection
Technology > Controls > Reader > Original size detection
Following shows the scanning speed in each mode.
Unit: mm/s
Mode
SEND:
300 dpi or less
Others
Speed Priority * Image Priority *
B&W 610 610 305
Color 610 305
*: Refer to Note: Settings/Registration (Black Scan Speed/Image Quality Priority)
Error Code
E202 (error in the scanner home position)
-0001 Error during home position detection operation (outward) of the front scanner unit.
-0002 Error during home position detection operation (homeward) of the front scanner unit.
Service Mode
(Lv.1) COPIER > ADJUST > ADJ-XY> ADJ-X
(Scanner system image leading edge position adjustment)
Enter the value to adjust the position of image leading edge.
Setting range: 1 – 100 (changing the value by 10 moves the position by 1mm)
Note: Settings/Registration (Black Scan Speed/Image Quality Priority)
To switch the operation at black and white scanning, see the following for the setting
items.
• Speed Priority (default)
• Image Priority
When “Image Priority” is specified, the machine executes color scanning operation in
case of black and white scanning.
T-2-8
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Original size detection
● Overview
Original size is identified based on the result combinations of reflection light at the specific
point on the reflection sensor and the scanner unit. To prevent the original from moving when
closing the DADF, there is 2 point original size detection per each size on the scanner unit.
• In main scanning direction: scanner unit (AB type: 9 point measurement (when K size
paper is supported: 11 point measurement), Inch type: 6 point measurement)
• In sub scanning direction: reflection type photo sensor (AB type: 1 point, Inch type: 1 point)
Service Mode
(Lv.2) COPIER > OPTION > FEED-SW > KSIZE-SW
(the switch that support the paper (K size paper) used in China)
Setting value
0: not support K size paper (default), 1: support K size paper.
●
Original size detection procedure
Original size is detected in the following procedure.
1) External light search (in main scanning direction only)
While keeping the LED lamp unit OFF, the reading sensor level of each detection point
is measured in main scanning direction.
2) Output level detection of each sensor
While keeping the LED lamp unit ON, reading sensor level of each detection point is
measured in main scanning direction.
The machine turns ON the LED of reflection type photo sensor in sub scanning direction and
measures the sensor output.
Original size is identified by these output combination.