Xerox 5400N - Phaser B/W Laser Printer, Service Quick Reference Manual

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Phaser 5400 Laser Printer Service Guide 173
RAP 69 Erratic Printer Operation
The printer has a variety of problems that are not identified by displayed error codes
or messages. Problems may range from incomplete or garbled display text to
intermittent power shutdowns.
Table 99 Erratic Printer Operation Troubleshooting Procedure
Step Actions and Questions Yes No
1
PRINTER OPERATING ENVIRONMENT CHECK
Compare the printer room environment, such as
temperature, humidity, and space requirements, with
the specifications listed in General Information section
of this manual.
Does the printer room environment meet printer
specifications as listed in the General
Information Section?
Go to
Step 2. Move the
printer to an
environment
that meets
printer
specs.
2 AC POWER CHECK
1. Unplug the printer AC power cord from the AC wall
outlet.
2. Use a digital multimeter to monitor the voltage at the
AC wall outlet.
3. Monitor the AC voltage for 30 minutes or longer.
Does the voltage at the AC wall outlet meet
printer specifications as listed in the General
Information Section and does the voltage remain
relatively stable without wide fluctuations?
Go to
Step 3. Have an
electrician
troubleshoot
the AC line.
3
AC POWER CORD REPLACEMENT
1. Replace the AC Power Cord.
2. Monitor printer operation.
Does the printer display erratic operation?
Go to
Step 4. Problem
solved.
4
TEST PRINTS
1. Enter Diagnostics mode.
2. From the Main Menu, select Test Print / Print Pattern /
press [4] to start printing, [0] to stop.
3. Run 20 test prints.
Does the printer generate test prints?
Go to
Step 6. Go to
Step 5.
5 LVPS +5 VDC CHECK
1. Switch printer power OFF.
2. Disconnect P/J168 from the LVPS Assembly.
3. Switch printer power ON.
4. Measure the voltage between P161-10 and frame
ground.
Does the voltage between P161-10 and frame
ground m5.0 VDC?
Go to
Step 6. Go to
Step 11.