J4-Add Black Toner - Xerox DocuPrint C55 Service Manual

J4 ADD BLACK TONER RAP
The black toner concentration sensor has
detected low black toner in the black developer
assembly. When this occurs, the Printer will
dead cycle and attempt to tone up.
NOTE: If a new black developer housing has
been installed, make sure the packing material
has been removed.
INITIAL ACTION
Check with the customer to see if they have
already added Black Dry Ink. Add Black Dry
Ink, if required.
Adding too much toner can cause the toner to
" cake" and not be dispensed.
Check the Black toner hopper to ensure that it
is latched closed and is opening the shutter to
the developer housing.
(C55/C55mp)
Put the printer in the Off Line mode.
Select the SERVICE Menu and print a
Diagnostic Test Sheet.
Determine the Engine Software version from
the Diagnostic Test Sheet. If the Software
level is Version 66, replace the PCU PWB.
All Printers, switch the power off wait 10
seconds and switch the power on. Recheck
for the fault.
PROCEDURE
Remove the Printer Rear Cover. There is a
hole located at the left rear of the printer. This
hole is used to view the gears for the Toner
motor.
NOTE: In the following steps, we will be
operating the Black Toner Motor. Do not allow
the motor to run for over 2 seconds or
overtoning can result.
A
STATUS INDICATOR RAPs
J4
A
Enter IOT normal diagnostics. Scroll to the
MOTOR TEST program and press Form Feed
[1] to switch on the motors. Look through the
hole and switch on the Black Toner Motor by
pressing On Line [0]. Release On Line [0] to
stop the motor. Press Media Server [2] to
stop the test.
The Motor Runs.
Y N
Set up the meter to read +24 VDC.
Measure between CN107-13 (+) and
ground (− ). Press Form Feed [1] to
switch on the motors. Press On Line [0]
to switch on the Black Toner Motor.
Release On Line [0] to stop the motor.
Press Media Server [2] to stop the test.
The meter reads approximately 12 VDC
when On Line [0] was pressed.
Y N
Go to BSD 9.8 in Section 7 and
troubleshoot the Black Toner Motor
lines (CN107-13, 14) for an open.
If the lines are OK, replace the Black
Toner Motor
Check the Black toner box for auger
binding.
Check the ground to the Black Toner
Concentration Sensor (CN107-2
CN1001-4) BSD 9.7.
If the ground is OK, replace the PCU
PWB.
Toner should be dispensed, check the Black
toner box for auger binding.
Check the ground to the Black Toner
Concentration Sensor (CN107-2 to CN1001-4)
BSD 9.7.
If the ground is OK, replace the PCU PWB.
2/99
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DocuPrint C55/C55mp/[NC60]