Xerox Phaser 790 User Manual

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Phaser 790/DocuColor 2006
004-320
Status Indicator RAPs
Initial Issue
004-320 Paper Handling Motor RAP
The Control Logic detected that the Paper Handling Motor is not functioning.
Initial Actions
Check the connectors on the Drive Motor PWB. Ensure that they are correctly seated.
Procedure
Switch off the power then switch on the power. The 04-320 fault code is declared at the end
of self-test.
YN
Go to Flag 2 and check the harness between the Drive Motor PWB and the Paper Han-
dling Motor for damaged wires or connector pins. If the wires are OK, replace the Paper
Handling Motor (PL 10.1). If the problem continues, replace the Drive Motor PWB (PL
10.1).
Access the Digital Output (DO) test from the Control Panel. Enter code [53]. Press the Item/
Enter button. The Paper Handling Motor energizes.
YN
Access the DO Stop Test from the Control Panel. Enter code [53]. Press the Item/Enter
button. +5 VDC is measured between J50-2 on the Drive Motor PWB and machine
frame.
YN
Go to Flag 3 and check the wires for an open circuit. If the wires are good, replace
the MCU PWB (PL 11.2).
Access the Digital Output (DO) test from the Control Panel. Enter code [53]. Press the
Item/Enter button. The voltage at J50-2 goes to less than +1.0 VDC
YN
Replace the MCU PWB (PL 11.2).
+24 VDC is measured between J49-2 on the Drive Motor PWB and machine frame.
YN
Go to Flag 4 and check the wires for an open circuit (refer to the +24 VDC Inter-
locked Wirenet).
Go to Flag 2 and check the harness between the Drive Motor PWB and the Paper Han-
dling Motor for damaged wires or connector pins. If the wires are OK, replace the Paper
Handling Motor (PL 10.1). If the problem continues, replace the Drive Motor PWB (PL
10.1). If the problem can not be resolved, replace the MCU PWB (PL 11.1)
Check the following:
• Go to Flag 1 and check the wire for an open circuit.
• Go to Flag 2 and check the harness between the Drive Motor PWB and the Paper Han-
dling Motor for damaged wires or connector pins.
• The problem may be intermittent. Go to Figure 1 and check for loose or damaged connec-
tions or damaged wires. If the problem persists, replace the replace the MCU PWB (PL
11.2).

Xerox Phaser 790 Specifications

General

Brand	Xerox
Model	Phaser 790
Category	Copier
Language	English