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.

Troubleshooting

1. Run a 50 page paper path test through the diagnostic menu and, as it prints, pay attention for hesitations and two black marks on the back side of the paper. If your customer is specifically complaining about the black marks on the back side of the paper, see if they have an example.

2. Before you get too involved, you might want to remove the paper and verify the back paper stop is properly lined up and that the paper is properly loaded in the tray and not bent or creased in the front.

3. If the machine is jamming or you don’t see the black marks on the back side of the paper then remove the pickup roller and make sure it is not worn out. Also, make sure the separation pad in the tray is OK. The pad is split in two. The rubber should be slightly higher than the plastic on the part of the pad closest to you as you’re looking at it. If the pad is extremely worn, it will be below the plastic lip and that can cause feed issues. The pickup roller typically shows pretty good signs of wear and tear at 50,000 to 75,000 prints. Again, if you’re getting jamming or hesitations without the black marks on the back of the page I suggest replacing the separation pad and roller first, if they look worn.  You can order the necessary HP printer parts using the links below.

Cassette pickup roller – part # RM1-6313
Separation holder assembly -part # RM1-6303

4. If you have the second 500 sheet tray, try printing from that tray to see if you get a different result. I’ve personally never seen the black marks appear if the paper is feeding from the second 500 sheet tray.

5. If you’ve replaced the sep pad and pickup roller, or if you think the pickup roller looks good but the black marks and hesitations are still occurring, it’s time to replace the first 500 sheet pick up assembly — otherwise known as the tray 2 pick up assembly. There are two different part numbers for this item as there is a difference between the duplex and without duplex model. Also, you will notice that the two feed rollers on the new pickup assembly are now gray, not black. You can order the necessary HP printer parts using the links below.

Cassette, paper pickup assembly; duplex models –  part # RM1-6268
Cassette, paper pickup assembly; simplex models – part # RM1-6299

Note: The replacement of the pickup assembly is pretty involved. I don’t think the service manual actually shows the removal. It does show the removal of everything else around it, though. If you don’t have much experience with replacing parts I would not recommend trying to tackle this repair on your own.

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Kevin Gumpp is a certified printer technician and freelance writer for Market Point.  Market Point is a HP PartsOne Partner selling HP printer parts. If you have a question regarding this topic or have any other printer repair related questions or topics for which you would like more information, please send an email to maryp@marketpoint.com.

 

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