2-42 Service Manual
5022-xxx
4
Reconnect JHVPS1 cable to the system card
and the HVPS. Do not reinstall the left cover,
but make sure the front access door and the
top cover assembly are closed, and that the
waste toner assembly is reinstalled. Turn the
printer on. Attach the negative end of the
voltmeter to the ground, and check the voltage
on pin 1 of each toner level sensor cable. You
will need to check this on the back of the HVPS
(see the illustration below).
Replace the toner level
sensor that has 5 V dc on
pin 1. See “Toner level
sensor removal” on
page 4-83.
Go to step 5.
Is there approximately 5 V dc on any of the
pins?
5
Replace the HVPS. See “High voltage power
supply (HVPS) removal” on page 4-62.
Does the error clear?
Problem solved. Replace the system card.
See “System card
removal” on page 4-79.
Step Questions / actions Yes No
Pin1 (typical)
4X
Negative lead
Waste toner
assembly
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