Xerox Phaser 8500, Service Manual

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3-28 Phaser 8400/8500/8550/8560 Color Printer Service Manual
Error Messages and Codes
13,067.43: The Drum Temperature Sensor circuit is open.
13,069.45: The Drum Temperature Sensor circuit is shorted.
13,071.47: The Drum Temperature Sensor returned a bad reading, or the
reading was corrupted by ESD (Electrostatic Discharge).
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
Using Service Diagnostics, run the Drum
Temperature Sensor test.
Did the test pass?
Go to Step 2. Replace the
Drum
Temperature
Sensor.
2
Inspect the sensor wiring harness.
Is the wiring free from defects? Is the wiring
correctly routed through the pass-thru and
not pinched against the Drum? Replace the
Drum
Temperature
Sensor. Replace the
sensor
harness.
Troubleshooting Procedure for 13,072 to 13,135 Error Code (Preheater)
Step Questions and Actions
Yes No
1
Check that the ambient room temperature is
within specifications (see “Environmental
Specifications” on page 1-12).
Is the room too cold or too hot? Advise
customer. Go to Step 2.
2
Run the Preheater test.
Did the test pass?
Replace the
I/O Board.
Go to Step 3.
3
Check the wiring from the Preheater.
Is the wiring connected and intact? Replace the
Preheater. Replace the
harness.