Xerox Phaser 8400 Service Manual

Service Manual 3-31
13,072.48: The preheater got too hot.
13,074.41: The preheater took too long to reach its setpoint.
13,131.44: The preheater thermistor circuit is open.
13,133.46: The preheater thermistor circuit is shorted.
13,135.48: The preheater thermistor returned a bad reading, or the reading was
corrupted by ESD.
13,136.49: The printhead left jetstack heater is too hot.
13,138.42: The printhead left jetstack heater took too long to reach its setpoint.
13,195.45: The printhead left jetstack thermistor circuit is open.
13,197.47: The printhead left jetstack thermistor circuit is shorted.
13,199.49: The printhead left jetstack thermistor returned a bad reading, or the
reading was corrupted by ESD.
Troubleshooting Procedure for 13,067 to 13,071 Error Code (Drum Thermistor)
Step Questions and Actions Yes No
1
1. Using service diagnostics, run the Drum
Temperature Sensor test.
2. Did the test pass?
Go to Step 2. Replace the
drum
temperature
sensor.
2
1. Inspect the sensor wiring harness.
2. Is the wiring free from defects? Is the wiring
correctly routed through the pass-thru and
not pinched against the drum assembly
frame?
Replace the
drum
temperature
sensor.
Replace the
sensor wiring
harness.
Troubleshooting Procedure for 13,072 to 13,135 Error Code (Preheater)
Step Questions and Actions Yes No
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?
Advise
customer of
specification
requirements.
Go to Step 2.
2
1. Run the Preheater test.
2. Did the test pass?
Replace the I/O
board.
Go to Step 3.
3
1. Check the wiring from the preheater.
2. Is the wiring connected properly and sound?
Replace the
preheater
board.
Replace the
wiring harness.

Xerox Phaser 8400 Specifications

General

Brand	Xerox
Model	Phaser 8400
Category	Printer
Language	English