Add Toner And Chk Waste Bottle; Install Toner Cup - Printronix L1024 Maintenance Manual

03 ADD TONER AND CHK WASTE BOTTLE

CAUTION:
1. Check the level in the waste toner container. If the container is full, replace it.
2. Verify that the developer unit is installed. If it is, reseat it. If the developer unit is missing, install
it.
3. The developer unit is low on toner.
a. Make sure the toner is evenly dispensed in the developer. If the toner is not covering
the toner sensor, the developer will send a toner low error signal to the Engine
Controller Board.
b. Add toner to the developer unit.
4. The toner sensor in the developer unit is not functioning properly.
a. The toner sensor is faulty and the developer unit will need to be replaced. The toner
sensor may be replaced on the developer unit.
b. The toner sensor is not receiving 5 V. Check the paper-empty sensor board to make
sure the voltage is passing through it. Replace the board if necessary.
c. The L.V.P.S. is faulty and not supplying 5 V. This is very unlikely as there would be
numerous other problems with the printer. The 5 V is used throughout the printer.
5. The Engine Controller Board is not interpreting the toner low signal correctly.
a. The Engine Controller Board is faulty and must be replaced.
b. The paper empty sensor board is not transmitting the toner low signal and must be
replaced.
c. The paper empty wire harness is faulty and must be replaced.
d. The Data Controller Board is malfunctioning and must be replaced.

04 INSTALL TONER CUP

1. The waste toner container is missing.
a. Install a waste toner container.
2. The waste toner sensor is faulty.
a. Clean the sensor of any toner, paper dust, paper fragments, or other foreign material.
b. Make sure the sensor lever is not damaged or broken and replace it if needed.
c. The toner sensor is faulty and the entire sensor board must be replaced.
d. The cable for the paper empty sensor board is faulty and must be replaced.
13–30
Whenever adding toner, always check the level in the waste toner
container, and replace the waste toner container if necessary. (The
printer has no sensor for "waste toner container full".)
Chapter 13 – Troubleshooting Guide