Xerox ColorQube 9303 Series, Service Manual, Page: 1583 / 1812

February 2013
6-291 ColorQube® 9303 Family
dC969, dC971
General Procedures/Information
dC969 Clean Ink Smears
Purpose
To remove all unwanted ink from the registration / preheat assembly to liquefy any unwanted
ink.
NOTE: All test prints should be printed long edge feed.
Procedure
1. Enter service mode, GP 1 .
2. Select the Maintenance tab.
3. Select dC969 Clean Ink Smears.
NOTE: This procedure must run to completion. To stop the routine would require exces-
sive time to recover and add to customer/service cost. The full procedure takes approxi-
mately 6 minutes to complete.
4. Select Start. The following actions occur:
• The temperature of the registration / preheat assembly is increased to loosen ink for
removal. The warm-up procedure takes approximately 30 seconds.
• 10 sheets of A4 size (or 8.5 x 11) plain paper are fed in long edge feed through the
duplex path to absorb and remove the unwanted ink:
– The first 5 sheets are biased inboard (toward the rear).
– The next 5 sheets are biased outboard (toward the front).
NOTE: Running the 10 sheets takes approximately 1 minute.
• The temperature is set to return to normal.
• A number of sheets, up to 25 are fed through the simplex path to cool the registration
/ preheat assembly to normal operating temperature:
NOTE: Running the cool down chase sheets requires approximately 2 minutes but
will vary according to local conditions.
5. If a chase sheet paper jam occurs during the procedure the registration / preheat assem-
bly is locked until it cools to a safe normal operating temperature.
NOTE: The procedure can be repeated as necessary until all ink smears are removed.
6. Select Close to return to the maintenance window.
7. Select Call Closeout to exit service mode.
dC971 Head to Head Alignment Adjustment
Purpose
To adjust the head to head alignment for all four printheads.
Procedure
The procedure normally takes approximately 2 minutes to run and cannot be stopped once in
operation. If it is necessary to run
dC968 Head Purge the total procedure for Head to Head
Alignment Adjustment will increase to 10 minutes.
Perform the following:
1. Enter service mode, GP 1 .
NOTE: To adjust head to head alignment there can be no more than 10 missing jets in
total across all 4 printheads. To find out the number of missing jets:
a. Select the Maintenance tab.
b. Select dC968 Head Purge to print jet test pages.
c. If there are excessive missing jets run the Head Purge routine before adjusting.
2. Select the Adjustments tab
3. Select dC971 Head to Head Alignment Adjustment. The Head to Head Alignment Adjust-
ment window opens.
4. Select the relevant routine:
• Head to Head Alignment Adjust
• Head to Head Without Recovery
• Set Alignment Baseline
5. Follow the on screen instructions. Select Start to run the routine.
NOTE: A head purge is required before head alignment can be performed. If a head
purge has not been carried out prior to the head alignment dC971 will automatically purge
the printheads and report head to head alignment failure. Running dC971 after the heads
have been purged will complete the alignment procedure.
6. If head to head alignment fails refer to dC122 , Fault History, and perform the RAP for the
error code indicated.
7. Select Close to exit the routine.
8. Select Call Closeout to exit service mode.