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

13.A2.D2 Error: HP LaserJet M601, M602, M603


The 13.A2.D2 error means that the paper is failing to get to the pre-feed sensor (PS102). Several things can cause this error. Here are a few troubleshooting tips to help isolate the problem and get it fixed with as little cost as possible.

Is the paper stop arrow lined up?
Remove the paper and paper tray. Verify the paper stop arrow is lined up with the mark on the bottom of the paper tray. If the paper stop is moved too far forward the paper will bind when the tray raises. Also, make sure the paper is properly loaded. Sometimes a few pieces of paper will bend up in the front of the tray causing the tray to not properly lift and feed paper.

Is the access door missing?
In the front of the tray there is an access door for the pick-up roller. Verify the access door is there. I’ve seen situations where these somehow get removed, causing intermittent paper jamming. Continue reading

HP LaserJet P3015 Intermittent Jamming or Black Marks on the Back


This topic was covered briefly in a previous post. At that time I didn’t have a defined solution, but since then I’ve gotten feedback from others and I’ve personally fixed a few machines with this problem so today we’re going to get to the solution.

I’ve seen slow printing from the first 500 sheet tray in these HP P3015 printers. By that, I mean, occasionally the paper feeds up into the two feed rollers behind the MP tray and stalls out. This causes the pickup roller to rotate again, pushing the paper up into the registration assembly. In most cases, this doesn’t cause a paper jam; however, if you’re printing a 50 page document you will notice a slight hesitation with every few pages so the output is not at a consistent pace. Also, because the paper is slipping on the two feed rollers, you see two black lines in the middle of the back side of the page about 2 or 3 inches down.

Last week I worked on a printer that was actually having some paper jam issues as a result of this. The machine had 320,000 prints on it and had been operating for a few years with the hesitation and marks on the page without any serious problems related to it. However, with the paper jam errors starting to happen I decided it was time to address this problem. Continue reading