3-44 Phaser 6180 Color Laser Printer Service Manual
Error Messages and Codes
Print Cartridge CRUM Error (Yellow/Magenta/Cyan/Black)
The Print Cartridge CRUM communication is detected.
Applicable Chain Link
■ Chain Link 093-950: Yellow CRUM Error
■ Chain Link 093-951: Magenta CRUM Error
■ Chain Link 093-952: Cyan CRUM Error
■ Chain Link 093-925: Black CRUM Error
Initial Actions
■ Check the Print Cartridge life using CentreWare IS.
■ Cycle printer power.
■ If problem persists, follow the procedure below.
Troubleshooting Reference Table
Applicable Parts Wiring and Plug/Jack Map References
■ Print Cartridge (Y/M/C/K),
PL5.1.18-21
■ CRUM Connector, PL5.1.3
■ CRUM Harness, PL10.1.13
■ MCU Board, PL9.1.20
■ “Map 2 - Laser Unit” on page 10-11
■ “Map 4 - LVPS and MCU Board” on 
page 10-13
■ “Developer” on page 10-44
Troubleshooting Procedure Table 
Step Actions and Questions Yes No
1 Check the Print Cartridge for correct 
installation. Is the Print Cartridge 
correctly installed?
Go to step 3. Reseat the Print 
Cartridge. Go to 
step 2.
2 Does the error still occur? Go to step 3. Complete.
3 Check the CRUM Connector for 
correct installation. Is the connector 
securely connected?
Go to step 4. Reseat the 
CRUM 
Connector. Go 
to step 4.