Canon DADF-AA1, Руководство по обслуживанию

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Chapter 2
2-9
2.3.4 Adjusting the Read Position
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1) Enter to the service mode.
[Entering to Service Mode]
Press the additional function key " ", the 2 key, the 8 keys and the
additional function key " " sequentially on the operation panel of the
host machine.
2) On the service mode screen, select the following notations in sequence.
1 #SCAN
2 #SCAN READER
3 #READER FUNCTION
4 #FUNCTION INSTALL
5 #INSTALL STRD-POS
3) Confirm the"STRD-POS" is displayed, and then press the OK key.
Pressing the OK key will cause the scanner to start a scan; in several
seconds, the machine will end the auto adjustment of the read position,
and then indicate "OK".
2.3.5 Adjusting the Horizontal Registration
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1) Place the test chart on the DADF tray and make a copy.
2) Compare the copy with the test chart for the horizontal registration. If it is
improper, make the following adjustment.
3) Enter to the service mode. On the service mode screen, select the follow-
ing notations in sequence.
1 #SCAN
2 #SCAN READER
3 #READER ADJUST
4 #ADJUST ADJ-XY
5 #ADJ-XY ADJ-Y-DF
4) Confirm the "ADJ-Y-DF" is displayed, and then press the OK key to
change the setting value.
- If the image is displaced to the front, increase the value.
- If the image is displaced to the rear, decrease the value.
<Unit of the adjustment: 0.1 mm>
5) After changing the value, press the OK key to fix it.
2.3.6 Adjusting the Trailing Edge Registration
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1) Place the test chart on the DADF tray and make a copy.
2) Compare the copy with the test chart for the trailing edge registration. If
it is improper, make the following adjustment.
3) Enter to the service mode. On the service mode screen, select the follow-
ing notations in sequence.
1 #SCAN
2 #SCAN FEEDER
3 #FEEDER ADJUST
4 #ADJUST DOCST
4) Confirm the "DOCST"is displayed and press the OK key to change the
setting value.
- If the image is displaced to the leading edge, decrease the value.
- If the image is displaced to the trailing edge, increase the value.
<Unit of the adjustment: 0.1 mm>
5) After changing the value, press the OK key to fix it.
2.3.7 Adjusting the Magnification
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1) Place the test chart on the DADF tray and make a copy.
2) Compare the copy with the test chart in terms of the length of the image
in the feed direction. If it is improper, make the following adjustment.
3) Enter to the service mode. On the service mode screen, select the follow-
ing notations in sequence.
1 #SCAN
2 #SCAN FEEDER
3 #FEEDER ADJUST
4 #ADJUST LA-SPEED
4) Confirm the "LA-SPEED" is displayed and press the OK key to change
the setting value.
- If the image is shorter, increase the value. (so that the stream reading
speed will be reduced.)
- If the image is longer, decrease the value. (so that the stream reading
speed will be increased.)
<Unit of the adjustment: 0.1 %>
5) After changing the value, press the OK key to fix it.
2.3.8 Adjusting the White Level
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1) Prepare the blank paper which user always uses and place it on the docu-
ment glass, then close the DADF.
2) Enter to the service mode. On the service mode screen, select the follow-
ing notations in sequence.
1 #SCAN
2 #SCAN READER
3 #READER FUNCTION
4 #FUNCTION CCD
5 #CCD DF-WLVL1
3) Confirm the "DF-WLVL1" is displayed and press the OK key. Automatic
adjustment starts, if it ends successfully, the screen shows "OK".
After the adjustment, press the OK key.
4) Remove the paper from the document glass and place it on the DADF tray.
5) Select "DF-WLVL2" on the screen and press the OK key.
The machine executes the automatic adjustment with the duplex stream
reading operation. When the adjustment ends successfully, the machine
indicates "OK" on the screen.
After the adjustment, press the OK key.
6) Prepare the blank paper which user always uses and place it on the docu-
ment glass, then close the DADF.
7) Select "DF-WLVL3" on the screen and press the OK key.
Automatic adjustment starts, if it ends successfully, the screen shows
"OK".
After the adjustment, press the OK key.
8) Remove the paper from the document glass and place it on the DADF tray.
MEMO:
If it is necessary to shift the service mode to the upper tier, press the
additional function key.
CAUTION:
If the machine fails the auto adjustment and indicates "NG", go through the
following:
(1) Clean the platen roller of the DADF and the stream reading glass of the
host machine; then, execute the auto adjustment once again.
(2) If the auto adjustment operation still fails, enter the service mode and
make adjustments manually:
#SCAN>#SCAN_READER>#READER_ADJUST>#ADJUST_ADJ-
XY>#ADJ-XY_STRD-POS
To find the optimum value, change the "STRD-POS" value checking the
actual copy image.
MEMO:
If it is necessary to change the sign (+/-), press the ssterisk key of the
numeric keys.
MEMO:
If it is necessary to change the sign (+/-), press the ssterisk key of the
numeric keys.
MEMO:
This is the adjustment to match the white level of the image made in the
stream reading mode with the white level of the image made in the book
mode. If this adjustment has not been made, the following will likely occur.
- Inappropriate background density in images made in the stream reading
mode
- Wrong speck detection in the stream reading mode
MEMO:
This system incorporates a 4-line CCD sensor which is used for two types
of white level adjustments: a monochromic adjustment and a color
adjustment. "DF-WLVL1" and "DF-WLVL2" are for the monochromic
adjustment, and "DF-WLVL3" and "DF-WLVL4" are for the color
adjustment.
MEMO:
If the monochromic adjustment fails, perform Steps 1) to 5) again.