Adj 11.1.2 Iit Vertical/Horizontal Magnification - Xerox WorkCentre 7132 Service Documentation

14. Remove the copy from the output tray and label the lead edge, and indicate the tray feed
from, type of paper, and color (Black).
15. Fold the copy in half in both directions.
16. Measure and record the direction and distance the image need to be moved to align them
with the folds and adjust the NVM until the IIT is correctly registered.
17. Check that the measured values of the Lead Edge and Side Edge fall within the specifica-
tions of the supporting mode.
Table 1 IIT Registration Specification
Item NVM Location
Lead Edge 715-050
Side Edge 715-053
Repairs/Adjustments
ADJ 11.1.1, ADJ 11.1.2
Increments Range
0.036mm / step 16 - 184
0.085mm / step 16 - 184

ADJ 11.1.2 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 the 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 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: 11x17" or A3
• Magnification: 100%
• Number of copies: 2
2. Check the 2nd copy for the following:
3. Check horizontal magnification.
• Measure the 200mm line. If the dimension is not 200mm +/- 1mm, perform the
Adjustment.
4. Check the vertical magnification.
• Measure the 300mm line. If the dimension is not 300mm +/- 1.5mm, perform the
Adjustment.
Adjustment
1. Horizontal Magnification Adjustment
• Enter UI Diagnostics, NVM 715-051.
• Each bit represents 0.1% change.
• Increase the value to lengthen the line.
• Decrease the value to shorten the line.
1. Vertical Magnification Adjustment
• Enter UI Diagnostics, NVM 715-702.
• Each bit represents 0.1% change.
• Increase the value to lengthen the line.
• Decrease the value to shorten the line.
Chain Link Name
715-051 Platen SS Reduce/Enlarge Adjustment
715-702 Platen FS Reduce/Enlarge Adjustment
January 2007
4-258
CAUTION
Table 1 NVM List
Min. Initial Max
44 50 56
0 50 100
WorkCentre 7132
Increments
0.1%
0.1%
Reversion 4.0