20 Most Recent HP LaserJet 4350n Printer - Page 7 Questions & Answers

google the code.

you need to go where it says Service then input that code and scroll to reset the belt. ( this only needs to be reset in Service mode when changing before the counter says to.)

you are using a generic toner -- the chip on the toner is causing the memory error. you should still be able to print. hit the ok button to bypass

Do the calibration of printer from menu

Take it to the service center as the sensor is broken.... looks alike

Replace your power adapter and check

The service manual shows no way to print test page without a computer attached.

Does the paper feed but not print?

Is it on a network if so sound like you have a que in the system firstly clear all printing documents and try again

data send and receive error. clear all print command

see the power connector side

toner not support or PCR not proper installed