Adj 9.12 Iit Vertical/Horizontal Magnification - Xerox DocuColor 2240 Service Manual

ADJ 9.12 IIT Vertical/Horizontal Magnification

Purpose
To correct the horizontal (fast scan)/vertical (slow scan) magnification ratio for a 100% copy.
Check
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:
• Copy Mode: Black
• Document Type: Text/Photo
• Paper: 11 x17 in. or A3
• Magnification: 100%
• No. of Copies: 2
2. Check the 2nd copy for the following:
3. Check horizontal magnification (Figure
Measure the 200mm line running from near LE1 to near LE3. If the dimension is not
200mm ±1mm, perform the Adjustment.
Initial issue
DC 3535/2240/1632
CAUTION
1):
Figure 1 Checking Horizontal Magnification
02/03
4-175
Lead Edge
200mm
+/-1mm
Repairs and Adjustments
ADJ 9.12