Specifications

Chapter 6: FRU Replacement and Fault Isolation Procedures
6-27
6.2.14 “Need Cartridge” Message Is Not Displayed:
Fault code J5
NOTES:
1. Without the diagnostic tool, skip the Diagnostic Tool test portion of steps 2 and 4 and go to
Section 6.3.18
Toner sensor assembly failure , before replacing the MCU.
2. There is no corresponding control panel message for this; although it should be "Need
Cartridge."
3. This FIP may also fix a bad toner sensor or toner cartridge sensor.
4. Try another toner cartridge. If the toner sensor is disconnected (P/J 21), toner is never
recognized as being low or the cartridge is never recognized as being missing.
1. INITIAL ANALYSIS
Inspect the following components. Are they compatible with your printer version, correctly
installed, not damaged, deformed, or contaminated?
EP Cartridge MCU PWB
LVPS Assembly Toner Sensor Assembly
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. ROM DATA ANALYSIS
Are the Configuration Mode parameters correct?
Yes No
Go to Step 3. Correct the parameters.
3. TONER SENSOR ANALYSIS
1. Disconnect P/J 111 from the HVPS.
2. Disconnect P/J 15.
3. Use Diagnostic Tool Test DG02 to check the Toner Sensor.
4. Open the Front Transport Assembly and actuate the interlock switch.
5. Remove and reinstall the Toner (EP) Cartridge.
Does the Toner Sensor function correctly and increment the DG02 number each time you
actuate it?
Yes No
Go to Step 4. Go to Section 3.18 Toner Sensor Failure.