Canon DADF-AV1 Service Manual

Contents

Canon DADF-AV1 Service Manual Manual pdf 109 page image

3. Select the following item in the service mode tocheck the value, and write down the new adjustmentvalue on the service label.COPIER > ADJUST > ADJ-XY > STRD-POSNOTE:The service label affixed to the back of Reader FrontCover.CAUTION:If the DADF fails auto adjustment and indicates [NG],go through the following:1. Clean the platen roller of the DADF and the ADFscan glass of the host machine, and then executethe above auto adjustment again.2. If the auto adjustment operation still fails, make themanual adjustment with the following servicemode.COPIER > ADJUST > ADJ-XY > STRD-POSChange the setting, and adjust on the best settingchecking the output copy image.3. When the setting value was changed in step 2,write down the new numerical value in the servicelabel.Adjusting the Magnification1. Copy the test chart with the DADF.2. Compare the image length in feed direction betweenthe copy and the test chart. As necessary, make thefollowing adjustment.■ Adjustment Procedure1. Select the following item in the service mode.FEEDER > ADJUST > LA-SPEED2. Change the value as gap A in the figure.• If the printed image is longer: Increase the value.(The image shrinks in the feed direction.)• If the printed image is shorter: Decrease the value.(The image extends in the feed direction.)Setting Value; 1=0.1%Feed directionATrailing edge oftest chart< If the image is shorter >Trailing edge ofprinted imageFeed directionATrailing edge ofprinted imageTrailing edge oftest chart< If the image is longer >3. When the setting value was changed in step 2, writedown the new numerical value in the service label.NOTE:The service label affixed to the inside of Reader FrontCover.6. Installation103