The toner cartridge is empty or defective.
The sealing tape has been left in the toner cartridge.
The high-voltage power supply (HVPS), contacts, or cable is bad.
LJ 4L and 4P: The HVPS, AC power module, and the DC controller
are all on the same board.
The laser shutter arm or beam-to-drum mirror is broken.
The transfer roller is defective.
The direct-current (DC) controller is defective.
Occasional blank pages are being printed.
– Check the software, sharing device, or network settings. If the
printer is feeding multiple pages, the paper may not meet
There are multiple paper feeds.
The transfer corona wire is broken.
276 – Image defects