Xerox Phaser 8400 Service Manual page 96

13,008.47:
The drum heater is too hot.
13,010.49: The drum heater took too long to reach its setpoint.
Troubleshooting Procedure for 13,008 to 13,010 Error Code (Drum Heater)
Step Questions and Actions
1 1. Verify that the ambient temperature of the
room is within the printers optimal
environmental specification (see
"Environmental Specifications" on
page 1-11).
2. Is the room too cold or too hot?
2 1. Ensure ground integrity of the printer (see
"Ensuring Ground Integrity" on page 4-77).
2. Are all components grounded properly?
3 1. Is the error code associated with an
overheat condition?
4 1. Verify clearance for adequate air flow.
2. Are any of the vents blocked?
5 1. Using service diagnostics, run the Drum
Fan Motor test.
2. Did the test pass?
6 1. Check the electronics module fan.
2. Is the fan operating correctly?
7
1. Using service diagnostics, run the Drum
Temperature Sensor test.
2. Did the test pass?
8 1. Using service diagnostics, run the Drum
Heater test.
2. Did the test pass?
13,067.43:
The drum thermistor circuit is open.
13,069.45:
The drum thermistor circuit is shorted.
13,071.47:
The drum thermistor returned a bad reading, or the reading was corrupted
by ESD (Electrostatic Discharge).
3-30
Yes
Advise
customer of
specification
requirements.
Go to Step 3.
Go to Step 4.
Advise
customer of
clearance
specification.
Go to Step 6.
Go to Step 7.
Go to Step 8.
Phaser 8400/8500/8550 Color Printer
No
Go to Step 2.
Resolve ground
integrity.
Go to Step 6.
Go to Step 5.
Replace the
drum fan and/or
the wiring
harness.
Replace the
electronics
module fan.
Replace the
drum
temperature
sensor.
Replace the
drum
temperature
sensor.