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CHAPTER 5 TROUBLESHOOTING
c) Adjusting sub-scanning direction magnification Determine the difference between a2 + a3 and b2 + b3 in sample A and sample B to adjust displacement. 1) Press the Register/Set key, then press the # key to enter the service mode. 2) Use the v w shift keys to select #6 SCANNER and press the Set key. 3) Use the v w shift keys to select 8.CCD. 4) Use the v w shift keys to select 016. The 016 parameter is now displayed. 5) If a2 + a3 > b2 + b3, Decrease the 016 parameter value. If a2 + a3 < b2 + b3, Increase the 016 parameter value. (Use the numeric keys for input.) An increase (decrease) of 3 in the parameter value yields a displacement of approximately 1 mm. Reference: An increase (decrease) of 1 in the parameter value yields a displacement of approximately 0.33 mm. 6) Press the Set key. After the message �Registered� has appeared on the display, the value of parameter 017 is shown. 7) Add (subtract) 1/3 of the value added (subtracted) in step 5) to the 017 parameter value. If a2 + a3 > b2 + b3, Subtract from the 017 parameter value. If a2 + a3 < b2 + b3, Add to the 017 parameter value. (Use the numeric keys for input.) 8) Press the Set key. Example: When a2 = 10 mm a3 = 11 mm b2 = 12 mm b3 = 12 mm, a2 + a3 = 21 b2 + b3 = 24 Since the difference is 3 mm, add 9 to the 016 parameter value and add to the 017 parameter value.
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COPYRIGHT © 1999 CANON INC.
CANON GP160 REV.0 FEB. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
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