3-292 Phaser 7500 Printer Service Manual
Error Messages and Codes
Toner C CRUM Communication Fail
Communication failure with Toner CRUM (C) was detected.
Applicable Chain-Link Code
• 093-942: Toner C CRUM Comm Fail
Initial Actions
• Check the Toner Cartridge life.
• If the problem persists, follow the procedure below.
1. Turn the power Off and On.
2. Check the connection between the MCU PWB J411 and the Toner CRUM
Coupler Assembly (C) J122 for open circuit, short circuit, and poor contact.
Also, remove and reinstall the Toner Cartridge (C) and check for improper
installation.
3. If no problems are found, replace the following parts in sequence:
• Toner Cartridge (C) (REP 1.1, page 8-9)
• Toner CRUM Coupler Assembly (C) (PL5.1.8)
• MCU PWB (REP 18.12, page 8-202)
Troubleshooting Reference
Applicable Parts Wiring and Plug/Jack Map References
■ Toner Cartridge (C), PL5.1.2
■ Toner CRUM Coupler Assy (C),
PL5.1.8
■ MCU PWB, PL18.3.6
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