Xerox DocuColor 12/DCCS50, Service Manual

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1/05
4-205 DocuColor 12/DCCS50
ADJ 9.1.10
Repairs and Adjustments
Reissue
Check
1. Check that paper is loaded in all trays, and that the paper guides are adjusted correctly.
For Tray 1 and Tray 6 (if present), load 8.5 x 11 in. or A4 paper. For Tray 2 through Tray 5,
use 11 x 17 in. or A3 paper if available.
2. Enter 1 into the Print Count: box, and click on Print All .
NOTE: Print All prints from each tray in numerical sequence from Tray 1 through Tray 6
(HCF - if installed). Make sure to keep the sheets in the correct sequence.
3. Check the Side Edge Registration (Figure 3) for each page. If the measured values are
not within specification, perform the Adjustment for that tray.
NOTE: When the lead edge is to the right, the side to be checked is at the bottom of the
sheet.
Figure 3 Checking Side Edge Registration
Adjustment
1. Select the paper tray to be adjusted from the Tray/Size menu.
2. Use the Up and Down Arrow buttons to move the image toward or away from the out-
board edge of the paper. Each click on the button moves the image 0.0423 mm. The
cumulative amount of shift is indicated in the
Side Reg. box.
3. After adjusting the registration, click Set Adjust Value .
4. Select Start .
NOTE: If the Side Edge Registration cannot be brought within specification, the NVM value for
the starting point may be out of range. Reset the NVM location (Table 1) for the affected tray to
the default value and perform the adjustment again.
5. Repeat the check/adjustment until the specifications are met.
6. Select Save [SR] to save the new NVM settings.
7. Repeat steps 1 through 6 for each tray that requires adjustment.
8. Proceed to Lead Edge/Side Edge Registration for Duplex Tray .
Side 2 Registration for Duplex Tray
Purpose
The purpose of this procedure is to correctly position the lead edge and side edge of the image
in relation to the edge of the paper.
Check
1. Select Duplex from the Tray/Size menu. Ensure that Paper Tray 2 contains paper and
that the paper guides are adjusted correctly. If available, load the tray with 11 x 17 in. or
A3 paper.
2. Enter 1 into the Print Count: box, and click on Start .
NOTE: Side 2 will be face up in the output tray.
3. Check Skew :
Compare Side 2 of the print to Figure 1. If the skew is out of spec, go to the IQ3 RAP.
Resolve the cause of the skew before proceeding with this adjustment.
4. Check Lead Edge :
Check the Side 2 Lead Edge Registration (Figure 2). If the measured values are not within
specification, perform the Adjustment.
5. Check Side Edge :
Check the Side Edge Registration (Figure 3). If the measured values are not within speci-
fication, perform the Adjustment.
Adjustment
Duplex Lead Edge:
1. Use the Right and Left Arrow buttons to move the image toward or away from the lead
edge of the paper. Each click on the button moves the image 0.1mm. The cumulative
amount of shift is indicated in the
Lead Reg. box.
2. After adjusting the registration, click Set Adjust Value .
C
D
1
Check distance from intersection of lines to edge of paper at points C and D
Side Edge
of Paper
C, D
LE
Dimension C, D
11x17, 12x18, or 8.5x11 LEF: 10.0 mm +/- 0.5 mm
A3, SR-A3, or A4 LEF: 7.6 mm +/- 0.5 mm
8.5x11 or 8.5x14 SEF: 7.6 mm +/- 0.5 mm
Table 1 Side Edge Reg. Defaults
Tray Location Default
1 720-003 7406
2 720-004 7406
3 720-005 7406
4 720-006 7406
5 720-007 7406
6 720-003 7406