HP 3500 Series - Page 351

ENWW Printer error troubleshooting 337
54.XX PRINTER continued
ERROR
for 54.32 error:
The image density adjustment value,
color misregistration adjustment value,
and PWM adjustment value (see note
below) are stored in the EEPROM
(NVRAM) of the formatter. Whenever a
formatter or laser/scanner unit is
replaced, you must calibrate the printer
to update the values.
a. Image density adjustment (on
formatter replacement)
b. Color misregistration adjustment
(on formatter replacement)
c. PWM adjustment (on both
formatter and laser/scanner unit
replacement)
Note: The PWM adjustment value
enables reproduction of an image in
the best tone. The formatter
determines the value based on the
amount of laser light received from the
printer engine.
54.32 -
Electrical Adjustment
When the media sensor is replaced, the
light intensity of the sensor must be adjusted.
Follow the procedure below to adjust the light
intensity.
1. Turn the printer OFF.
2. Open the front door.
3. While pressing down the engine test print
switch, turn the printer ON.
4. Close the front door.
5. Load paper into Tray 1 (use plain white
paper for test printing).
6. As the printer goes into READY period,
press the engine test print switch and test
print.
7. One sheet of paper will be fed into the
printer from Tray 1 and will be delivered to
the face-down delivery tray.
54.33 -
1. Defective laser/scanner. Replace the
laser/scanner unit.
2. Defective DC controller PCB. Replace the
DC controller PCB.
55.X
PRINTER ERROR
alternates with
To continue
turn off then on
The DC controller is not
communicating with the formatter. The
problem could be caused by a timing
error or an intermittent connection.
(Event log only)
55.01.00 - DC controller memory error.
55.5 - HP 3700 only - A job was sent
while Resend Upgrade is on the
display.
1. Press to continue.
2. If the message persists, turn the printer off
and then back on.
3. Reseat or replace the connectors between
the DC controller and the formatter.
4. If the problem persists, replace the DC
controller PCB.
5. Replace the formatter.
For the following specific error, perform
indicated action.
55.01.00 - Replace the DC controller PCB.
55.5 - Do not replace the DC controller PCB
or formatter PCB. Resend the firmware
upgrade before sending any more print jobs.
57.4
PRINTER ERROR
alternates with
To continue
turn off then on
A printer fan error has occurred as a
result of a faulty fan connection, fan or
DC controller.
1. Turn the printer off and then back on.
2. Reseat the DC controller PCB connector
J1024.
3. Replace the fan.
4. Replace the DC controller PCB.
Table 7-3 Numerical printer messages (continued)
Message
Description Action