Phaser 7500 Printer Service Manual 3-129
Error Messages and Codes
Image Ready NG/ Controller Communication Fail
The Controller image preparation failure was detected.
Communication error between ESS PWB and MCU PWB was detected.
Applicable Chain-Link Codes
• 045-310: Image Ready NG
• 045-311: Controller Comm Fail
Initial Actions
• Power cycle the printer.
• If the problem persists, follow the procedure below.
1. Turn the power Off and On.
2. Check whether there is poor connection and debris at the following
connectors.
• Between BP PWB J460 and MCU PWB P451
• Between BP PWB J335 and ESS PWB P335
3. If no problems are found, replace the following parts in sequence:
• BP PWB (REP 18.11, page 8-200)
• MCU PWB (REP 18.12, page 8-202)
• I/P PWB (REP 35.1, page 8-220)
Troubleshooting Reference
Applicable Parts Wiring and Plug/Jack Map References
■ BP PWB, PL18.3.2
■ MCU PWB, PL18.3.6
■ ESS PWB, PL35.1.1
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