Xerox Phaser 840 Service Manual page 65

Table 2-4 Front Panel & Fault History Log Error Codes and Messages
Error code
5,000: Y-AXIS PROGRAM FAULT CODES, see also SB457, SB461, SF167
5,001.41: YA_HOME_FAIL
5,002.42:
YA_POS_FAIL
5,005.67
YA_BAD_MESSAGE_IN_
HOME
5,026.61
YA_NO_RENDEZVOUS_
IN_IMAGE
6,000: X AXIS TASK PROGRAM FAULT CODES
6,000.41:
XA_FAULT_MCURRENT
6,001.42
6,002.43
Definition
Drum-home sensor failure. The drum has turned a full revolution
without seeing the drum-home sensor activate. Check the Y-axis
encoder and I/O Left board. Note: The Phaser 840 has a
separate drum-home sensor. The Phaser 850 printer's home
sensor is part of the drum-position sensor.
Run the Y-axis Encoder Diagnostic Test. (Phaser 860 only)
Y-axis position failure. The drum is not where it should be.
Something is blocking the motion of the drum, the y-axis belts or
motor have failed, or there is a problem with the Y-axis encoder
signal.
Run the Y-axis Encoder and Y-axis Geometry Tests.
Bad ITC command in home state. The YA task received a
YA_CMD_INIT command or a unrecognized command while in
the home state.
Missed ITC message during rendezvous. The YA task failed to
receive the rendezvous message to sync the drum motion to
paper path motion during transfix at the end of a print. This is
probably caused by the printer unexpectedly entering a fault
condition and not sending a rendezvous message.
Indication that the motor coil(s) is open or shorted, or the X-axis
motor fuse has opened. Follow the procedure "Testing motor and
solenoid resistances", on page 84 of this manual. Try diagnostics
to verify X-axis movement. If there is not any movement, it is
propable that the fuse is defective. The fuse is located in the
power control board; the whole baord should be replaced.
Some Phaser 840 printers in the serial number range of
B9B1372 to B9B3218 may have a problem with the Power
Controller Board that will result in a fault code 6,000.41
***see SF146 for more details.
Indication that the motor coil(s) is open or shorted, or the X-axis
motor fuse has opened. Follow the procedure "Testing motor and
solenoid resistances", on page 84 of this manual. Try diagnostics
to verify X-axis movement. If there is not any movement, it is
propable that the fuse is defective. The fuse is located in the
power control board; the whole baord should be replaced.
***See SF146 for more details
Indication that the motor coil(s) is open or shorted, or the X-axis
motor fuse has opened. Follow the procedure "Testing motor and
solenoid resistances", on page 84 of this manual. Try diagnostics
to verify X-axis movement. If there is not any movement, it is
propable that the fuse is defective. The fuse is located in the
power control board; the whole baord should be replaced.
***See SF146 for more details
Error Codes and Messages 2 - 49