E6-Drum Jam - Xerox DocuPrint C55 Service Manual

E6 DRUM JAM RAP
Paper is jammed on the Transfer Drum and
could be caused by one of the following:
• Transfer Drum Cleaner not cleaning the
Transfer Drum or resting on the Transfer
Drum during the Print cycle.
• Paper did not reach the Gamma Sensor.
• Paper did not tack to the Transfer Drum and
actuated the Transparency Jam Sensor.
• Paper did not tack to the Transfer Drum
and actuated the Cleaner Jam Switch.
• Arcing between the Charge Scorotron
connectors and the Print Drum.
INITIAL ACTION
Open the Printer and check for torn paper or
an obstruction in the paper path. Check for a
sheet of paper or a transparency actuating the
Transparency Jam Sensor or the Cleaner Jam
Switch.
Check the Toner Collector for " layered" toner
(sand-art effect). If layered toner is present,
refer to OF8 Arcing RAP.
If the problem only occurs when running color
prints, check the Stripper Fingers for binding
or interference.
Open the Printer and position the Transfer
Drum Home Position Sensor flag at the
3 o' clock position. The Lead edge of the white
patch should be at the tips of the stripper
fingers. If not, replace the Transfer Drum.
PROCEDURE
Switch the Printer off. Remove the front cover
and tape the Control Panel up so that you can
view the operation of the Transfer Drum
Cleaning Solenoid.
Switch the Printer on. Observe the Transfer
Drum Cleaning Solenoid and the Cleaner
Assembly.
STATUS INDICATOR RAPs
E6
If you see solid development during the copy
quality setup, go the OF8 Arcing RAP.
The Transfer Drum Cleaning Solenoid should
energize and move the Cleaner Assembly
against the Transfer Drum while the patches
are generated during the Copy Quality Setup.
When the Copy Quality Setup is complete the
Transfer Drum Cleaning Solenoid should
deenergize and move the Cleaner Assembly
away from the Transfer Drum.
If the E6 jam occurs before paper is fed and
the patches are not being cleaned the Transfer
Drum Cleaner assembly is not camming into
the cleaning position.
If the machine prints OK when printing black
only but jams (E6) when printing color, it is an
indication that the Transfer Drum Cleaner
assembly is staying cammed against the
Transfer Drum.
The Transfer Drum Cleaning Solenoid and
Transfer Drum Cleaner Assembly
operating correctly.
Y N
Check that when the solenoid energizes
the camshaft turns 180 degrees and is
stopped by the outer tab on the cleaner
clutch sleeve. Ensure that the solenoid is
tight and the actuator catches the inner tab
when de-energized, and stops the outer
tab when energized. Check for flashing on
the plastic assembly, a bent solenoid
actuator or other things that could interfere
with proper operation. Clean the cams
and the cam followers with film remover to
minimize friction. Do not attempt to
lubricate these cams. Observe the op-
eration several times and look for smooth,
consistent operation. Do not attempt to
disassemble and adjust the clutch. If the
clutch is defective order the new Cleaner
Clutch Shaft Assembly.
A B
2/99
2-8
A B
Set up the meter to read +24 VDC. Measure
between CN103-3 (+) and ground (− ).
Switch the power off wait 10 seconds and
switch the power on while monitoring the
meter.
The meter swings from +24 VDC to 0
and back to +24.
Y N
Go to BSD 9.14 in Section 7 and
troubleshoot
Cleaning Solenoid
+24 VDC Interlocked
CN316-2, 1) for an open or a short.
If 24 VDC is not available at 316-1 on
the Connector PWB, go to BSD 1 and
troubleshoot the 24 VDC Interlocked
(CN114-1, CN103-1).
Check the Transfer
are
Solenoid and the cleaner assembly for
binding.
If the sheet appears to be stopping at the
Transfer Drum to Print Drum Nip, check the
Transfer Drum Nip Adjustment (ADJ 11.1).
Enter IOT normal diagnostics. Scroll to the
SWITCH SCAN program and select Scan Row
05. Press Form Feed [1].
Open the Printer. Actuate and deactuate the
Transparency Jam Sensor while observing the
Black LED.
The Black LED switches on and off.
Y N
Check for an obstruction that is keeping the
Transparency Jam Sensor actuator raised.
C D
DocuPrint C55/C55mp/[NC60]
the Transfer Drum
signal and
(CN103-3,
Drum Cleaning