Xerox Phaser 7100

Error Troubleshooting
Xerox Internal Use Only Phaser 7100 Service Manual 2-243
I/F Failure Start Image Marking Timeout Error
Communication failure has occurred due to one of the following problems:
• Image preparation failure of the Controller
• Communication failure between the MCU and the Controller
Applicable Fault Codes
• 045-310: Image Ready NG
• 045-311: Controller Comm Fail (IOT Detect)
Initial Actions
• Power cycle the printer.
• If the problem persists, perform the following procedure.
Troubleshooting Reference
Applicable Parts Wiring and Plug/Jack Map References
• MCU PWB, PL 12.1.15
• Main Harness Assembly, PL 12.3.1
• Image Processor PWB, PL 12.4.1
• Overview Diagram (1 of 3) on page 7-32
Troubleshooting Procedure
Step Actions and Questions Yes No
1. Check the connection between the I/P PWB and
MCU PWB.
Are the connectors P/J471 and P/J470 connected
securely?
Go to step 2. Connect the
connectors P/J471 and
P/J470.
2. Check the conductivity between the I/P PWB and
MCU PWB.
Is the connection between P/J471 <=> P/J470
conducting properly?
Replace the MCU PWB
(REP 12.4 MCU PWB
on page 4-206).
Go to step 3.
Replace the Main
Harness Assembly.
3. Does the error persist? Replace the I/P PWB
(REP 12.17 Image
Processor (I/P) PWB on
page 4-228).
Troubleshooting
complete.