Adj 6.5 Iit Vertical/Horizontal Reduce/Enlarge - Xerox workcentre 5335 series Service Manual

ADJ 6.5 IIT Vertical/Horizontal Reduce/Enlarge

Parts List on PL 1.1
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.
1. Place the Geometric Test Pattern (82E8220) on the Platen Glass and make a copy using
the following 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. Check that the dimension is
200mm ±1mm.
Initial Issue
WorkCentre 5335 Family Service Documentation
CAUTION
1):
BUS Updated 12/2011
Figure 1 Checking Horizontal Magnification
4. Check vertical magnification
Measure the 300mm line running from near LE1 to the trail edge of the 1.8lp ladder.
Check that the dimension is 300mm ±1mm.
07/2011
4-203
Lead Edge
200mm
+/-1mm
(Figure 2):
Repairs & Adjustments
ADJ 6.5