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copy lamp disconnection trouble - copy lamp or cpy lamp drive circuit (inverter PWB) trouble copy lamp disconnection. If lamp does not light when you power up machine, the lamp is burned out or board is bad.
IT MEANS YOUR BLACK DRUM AND DEVELOPER NEEDS REPLACEMENT, IF NO PROPBLEMS ARE THERE IN YOUR CPY QUALITY YOU CAN RESET THIS BY PRESSING #*c* BUTTON RESPECTIVELY WITH NOT MUCH TIME DELAY IN BETWEEN THE KEYS, THEN MACHINE WILL ASK FOR MAIN CODE THEN PRESS 2 AND 4 THEN PRESS START THEN YOU CAN SEE THE DRUM AND DEVELOPER COUNTER RESET SELECT THAT BLACK DRUM AND PRESS OK THEN DELOPER ALSO LIKE THIS THIS WILL RESOLVE YOUR PROBLEM, IF ANY QUERIES FEEL FREE TO CONTACT AND VOTE AND RATE THIS AFTER GETTING YOUR PROBLEM RESOLVED.
When this machine H 4 flashing
problem: Fuser unite over temperature
Solve: Press C Exposure button again C Exposure button 14 press start key
C exposure c exposure p 14 press start
Or H4 fixed
Solve: Replace Heater lamp or heater fuse
An H4 code on a sharp copier inicates a problem with the heat lamp.Often a bad lamp, sometimes a thermal fuse.You should call a copier service technician.There are lethal voltages in this machine.Good Luck!
Open right side door and check for a jam in the fusing unit (the one that is normally hot). Remove jam carefully. Hit P * C * and enter 14. Push the start button like you are making a copy. Machine should reboot and code should not return. if it does, you may have a dirty themistor, or blown lamp.
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