6/02
4-175
DC1632/2240
ADJ 9.11, ADJ 9.12
Repairs and Adjustments
Prelaunch Training/Review
4. If the value is not within the specified range, perform the Adjustment:
Adjustment
Purpose
1. Enter dC131 [715-014].
2. Change the value:
ï Each bit represents 0.036 mm
ï Increase the value to move the image toward the edge.
ï Decrease the value to move the image away from the edge.
ADJ 9.12 IIT Vertical/Horizontal Magnification
Purpose
To correct the horizontal (fast scan)/vertical (slow scan) magnification ratio for a 100% copy.
Check
CAUTION
Perform this procedure only if absolutely required; changing IIT magnification may adversely
affect resolution due to ASIC shift, and may cause a color shift.
NOTE: Before performing this procedure, make sure that the IOT horizontal/vertical magnifica-
tion ratios are correct.
1. Place the Geometric Test Pattern on the Platen Glass and make a copy using the follow-
ing copy mode settings:
ï Copy Mode: Black
ï Document Type: Text/Photo
ï Paper: 11 x17 in. or A3
ï Magnification: 100%
ï No. of Copies: 2
2. Check the 2nd copy for the following:
3. Check horizontal magnification (Figure 1):
Measure the 200mm line running from near LE1 to near LE3. If the dimension is not
200mm ±1mm, perform the Adjustment.
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