Lexmark X464 MultiFunction Printer: Dark Background Problems


A few weeks ago I was called out by a third-party company to install a Lexmark maintenance kit on a X464 multifunction machine. When I arrived onsite and printed a few test pages I noticed that the machine had some heavy background print going on. The customer told me they had installed a new toner cartridge and had ordered a photo conductor (PC) unit but it hadn’t arrived yet.

I proceeded to install the maintenance kit and reset the counter as instructed. I advised the customer to replace the photo conductor when it came in. That did not take care of the problem and I was called back to further troubleshoot the background issue the machine was experiencing.

Troubleshooting (in this order)

1. First, clean the inside of the machine. Check the contacts on the PC unit and toner cartridge along with the spring contacts inside the machine on the right side. It also wouldn’t hurt to remove the transfer roller and clean those contacts. Continue reading