Hi I would like to assist to the best of my ability to solve your problem.I hope the information i supply will be of help.
I think you should make sure that all the contact points inside the machine is clean and not deformed.Do the same on the toner cartridge .It sounds like the HV unit is not supplying the correct voltage to the drum unit.Hope this will help.
I am A certified Copier Technician.
It is so nice to give some help where possible and the forum is a great idea Thank You.Sometimes a picture speaks louder than words to find a solution.Should you find my help use full just give some credit for my effort please.
.Thank You.Copier-Pro
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I'M NOT AN HP EMPLOYEE AND DO ANSWER THESE QUESTION ON MY OWN BEHALF.
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