Atc Fail (C) - Xerox Phaser 7500 Service Manual

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ATC Fail (C)

Phaser 7500 Printer Service Manual

The frequency at which the ATC Average Fail (C) or the ATC Amplitude Fail (C) has

been occurring has exceeded the threshold value.

Although this Fail can be cleared by turning the power Off and On and it will

be possible to output a few sheets of printouts, when this Fail has occurred a

certain number of times, it will no longer be clearable by turning the power Off

and On. Perform Clear Tech Rep Faults in Diagnostics. If the machine does

not return to normal status, this error will occur again during the operation.

Applicable Chain-Link Code

092-314: ATC Fail [C]

Initial Actions

Power cycle the printer.

If the problem persists, follow the procedure below.

Troubleshooting Reference

Applicable Parts

ATC PWB, PL5.2.18

Developer Kit (K/C/M/Y),

MCU PWB, PL18.3.6

Motor Drive PWB, PL18.3.7

1. Perform the following steps:

Check the connection between the ATC Sensor (C) and the ATC PWB J126

for open circuit, short circuit, and poor contact.

The connection between the ATC PWB J633 and the Motor Drive PWB

J522 for open circuit, short circuit, and poor contact.

Perform the Dispenser Motors test in Diagnostics.

Perform the Developer Motors test in Diagnostics.

Check the path from Toner Cartridge (C) to Developer (C) for toner

Check the Developer (C) for internal toner blockage.

Check the Toner Cartridge (C) for internal toner blockage.

2. If no problems are found, replace the following parts in sequence:

Developer and Beads. Set new values in Diagnostics.

ATC PWB (REP 5.6,

Motor Drive PWB (REP 18.13,

MCU PWB (REP 18.12,

Wiring and Plug/Jack Map References

Error Messages and Codes