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* Necessary condition 1) The scanner drive wire tension must be normal. * Work content 1) Loosen the fixing screw of the scanner unit A and the drive wire, and release the scanner unit A from the drive wire.
Do not move the scanner unit manually. 3) Loosen the fixing screw of the scanner unit drive pulley which is not in contact with the stopper of the scanner unit B. 4) Without moving the scanner unit drive shift, manually turn the scanner unit drive pulley so that the scanner unit B makes contact with both the stoppers at the same time. (Change the relative positions of the scanner unit drive pulley and the drive shaft.) 5) Fix the scanner unit drive pulley fixing screw which was loosened in procedure 3). 6) Execute procedure 2). Repeat procedures 3) � 6) until the parallelism of the scanner unit B is proper. 7) With the scanner unit B in contact with both the stoppers in the rear and the front frames, slide the scanner unit A until it makes contact with the right edge of the frame, and fix the scanner unit A and the drive wire.
2) Manually turn the scanner drive gear to bring the scanner unit B into contact with the stopper, At that time, if the scanner unit B makes contact with both the stoppers in the front and the rear frames at the same time, the parallelism of the scanner unit B is proper. If not, perform the following procedures to adjust. 7�4
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