Specifications

Chapter 6: FRU Replacement and Fault Isolation Procedures
6-61
6.3.12 CRU Switch S100 failure
NOTES:
1. Without the diagnostic tool, skip step 2.
2. The control panel message may be: Need Cartridge
3. This FIP may also fix and incorrectly installed toner cartridge.
4. Try to move the Toner cartridge actuator. Try another Toner cartridge.
1. INITIAL ANALYSIS
Inspect the following components. Are they compatible with your printer version, correctly
installed, not damaged, deformed, or contaminated?
CRU Sensor PWB MCU PWB
EP Cartridge Harness Assembly HVPS
Inspect the printer paper path. Is it clear of foreign matter, such as staples, paper clips, and
paper scraps?
Yes No
Go to Step 2. Replace the problem components.
2. CRU ACTUATOR ASSEMBLY ANALYSIS
Use Diagnostic Tool test DG02 to check the CRU Switch on the CRU Sensor.
Repeatedly move and reinstall the Toner Cartridge.
Does the CRU Switch S100 function correctly and increment the DG02 number each time
you remove the Toner Cartridge?
Yes No
Go to Step 4 Go to Step 3
3. Toner cartridge analysis
Does the tab on the Toner Cartridge actuate the CRU Switch?
Yes No
Replace the CRU Actuator Assembly. Replace the Toner Cartridge.