Xerox WorkCentre 5790 Series, Service Manual

Page: 1507 / 1610

May 2013
6-123 Xerox® WorkCentre® 5790 Family
dC604
General Procedures/Information
5. Select Scanner Registration and follow the UI screen prompts.
a. The first three copies out will be the IOT test samples, one of which will be used as
an original to make the scanner test samples.
NOTE: To obtain the correct scanner registration. Check that the registration on the
IOT test samples is correct,
Figure 2 . If not correct then return to step 3.
b. Place one of the IOT test sample on the platen glass.
c. Compare the zones A and D on the scanner test samples, with those in Figure 3 .
d. Adjust the registration, enter the number at the point where the scale is deleted.
For example. If the top of the zone A scale is deleted at the 10mm mark (10mm indi-
cates the correct scanner registration,
Figure 3 ) then enter 10. If the top of the zone
A scale is deleted at the 5mm mark then enter 5.
6. Select Document Handler Registration and follow the UI screen prompts.
a. The first three copies out will be IOT test samples which will be used as originals to
make the DADH test samples.
NOTE: To obtain the correct DADH registration. Check that the registration on IOT
test samples is correct,
Figure 2 . If not correct then return to step 3.
b. Place the IOT test samples in the DADH.
c. Compare the zones A and D on the DADH test samples, with those in Figure 3 .
d. Adjust the registration, enter the number at the point where the scale is deleted.
For example. If the top of the zone A scale is deleted at the 10mm mark (10mm indi-
cates correct DADH registration,
Figure 3 ) then enter 10mm. If the top of the zone A
scale is deleted at the 5mm mark then enter 5mm.
Place the IOT test samples in the DADH to enable the Save option.
7. If the correct registration can not be obtained because the registration scales are out of
range or off the page. Enter
dC132 NVM Initialization, select Machine Variable NVM and
initialize. This will reset all of the registration values to default, return to step 3, complete
all four routines.
8. Take samples from each tray using the individual tray select button and check the lead
edge and top edge registration is within specification,
Figure 2 . If the top edge registration
is not correct on individual trays then go to step 9.
9. The individual trays can be adjusted to compensate for any mechanical variation between
the trays, which may cause an error in the top edge registration.
The individual tray top edge has an adjustment range of +/-10mm with increments of
0.5mm. When saved, the adjustment will update the NVM offset value for the specific tray.
To adjust the top edge registration on individual trays perform the following:
a. Enter diagnostics GP 1 . Select, Diagnostics Routines / Copier Routines / dC 604
Registration Setup
b. Select Image Output Terminal Registration Side 1 / select the individual tray / Print
Test Samples.
NOTE: If the top edge of the paper aligns above the 20mm mark on zone A i.e. at
22mm. Then 2mm to align the top edge of the paper with the 20mm mark on
zone A. If the top edge of the paper aligns with the 15mm mark on zone A. Then
select -5mm to align the top edge of the paper with the 20mm mark on zone A.
Make the adjustments, then press Print Test Samples. When the top edge of the
paper aligns with the 20mm mark on zone A, the registration is correct,
Figure 2 .
Press Save and repeat the procedure as necessary for the other trays.
c. Select Image Output Terminal Registration Side 2 and repeat the above procedure
as necessary.
d. If Tray 5 is still out of specification, go to ADJ 7.3 and then ADJ 7.4 . After checking
these adjustments, repeat the procedure in step 9.
10. Make copies of the test pattern 82E2010 or 82E2020 from the DADH and document glass
to check for skew. Refer to IQS 5 Skew. Use internal test prints 16 or 17 to check printer
skew. Refer to IQS 5 Skew.
Figure 1 Registration test pattern