Lexmark T630 Series – Gray Background on Side or Across Whole Page

Brian has talked about this briefly in an earlier post on this blog (see it here) but since I ran into this problem on a few machines recently I thought I would elaborate on this problem. On most machines the primary charge roller is located in the print cartridge so when you replace the cartridge you replace the charge roller. In Lexmark and Kyocera printers the charge roller is separate from the print cartridge; therefore, it doesn’t get replaced as often and has more opportunity to cause print related problems.

The charge roller puts a charge on the drum before the image is written to it. If the charge roller has too much build up or debris, like label glue, gets on the surface then the part of the drum unit that area touches doesn’t get properly charged and spots or gray background will result.

On Lexmark machines the charge roller is easily seen by removing the print cartridge and looking up in the cavity of the machine. It will be a light tan roller about a foot in length. The one I saw on the T630 I was working on looked OK but  Continue reading

HP P3005 – Light Print – Formatter Issue.

A few months ago I serviced a HP LaserJet P3005 for a third party company. While servicing the machine for a paper jam issue I noticed that it was printing extremely light and every time I turned it off and back on, upon reboot  it gave me an 11.XX internal clock error. The internal clock error was pretty simple. That’s the formatter board.

The light print, though, threw me for a loop. The machine had an OEM cartridge, toner density all the way up, and not in toner save mode. The customer said it was always like that so they had no issue with it. I told them that to fix the clock error they would have to replace the formatter and possible either the ECU or formatter to fix the light print.

Fast forward a few months Continue reading

Troubleshooting Tips for HP LaserJet P4014 and P4015

49.XXX Service Error on the Display

These 49 errors are usually related to software and communication issues. On a recent machine I serviced the error was the result of a broken pressure roller gear that locked up the fuser drive system. After replacing the part the machine started working again but it was more noisy than usual. I then printed off the config page to see the machine had 500,000 prints on it. Since the noise was in the back I pulled the fusing assembly back out and noticed that the swing plate gear inside the machine that meshes with the pressure roller gear was worn down. I had often wondered if this was going to be an issue with these models because of how hard the fusers turn as they age. So this situation answered my question. From now on I’ll be keeping an eye on these swing plate gears.

HP LaserJet P4014 and P4015 Fuser CB506-67901
HP LaserJet P4014 and P4015 Maintenance Kit CB388A

Tray Issues

I’ve been seeing a lot of jam issues coming from the paper tray, specifically the paper not even making it out of the tray.  While troubleshooting I’ve been seeing lots of broken paper stops. The plastic that locks the stop in place breaks or cracks and the stop will move back an inch or more. People see the problem and move the stop back up but once they close the tray the weight of the paper pushes the stop back again. Unfortunately the stops are not available as separate items to purchase and replace. However, you can get refurbished trays relatively inexpensively.

HP LaserJet P4014 and P4015  500 sheet Cassette Tray RM1-4559

Perform User Maintenance Message Reset

I’ve talked about this before but didn’t give the instructions. In older models there was a firmware glitch and the maintenance reset is not in the start up service mode. Below are the instructions to reset the maintenance count through the control panel service menu.

1. Press the Menu Button

2. Press the down arrow to highlight SERVICE and then press OK

3. Enter the PIN using the alphanumeric keypad

PIN for the HP LaserJet P4014 models is 05401408

PIN for the HP LaserJet P4015 models is 05401508

PIN for the HP LaserJet P4515 models is 05451508

4. Press OK to enter the PIN and open the SERVICE menu.

5. Scroll down the MAINTENANCE COUNT and reset the count to Zero.

HP LaserJet P4014 and P4015 Maintenance Kit CB388A

 4. 13.20.00 Jam Inside

You’ll see this error message when the paper jams in the front of the machine, the customer pulls the paper out, and a piece tears and gets stuck on the sensor flag in the front feed assembly. On the new P4014 and 4015 series HP has made the paper jam removal guide even smaller. To find the guide:

  • open the bypass  tray and remove the envelope accessory plate right above the bypass pick up rollers
  • open the front door and remove the cartridge
  • the paper jam removal guide is in the very front of the print cavity. It has a green labeled handle on the right side to rotate it up.

Check in that area for jammed paper that may have been missed. If you see paper in there that you can’t quite reach use a piece of heavy cardstock paper and push it up through the bottom of the machine up to the top (a good thin pair of hemostats have saved me time on several occasions). This should push any paper scraps through the feed assembly or sensor flag and up to where you can grab it and pull it out. The main thing here is to only feed paper from the bottom to the top. Doing this procedure from top to bottom could break the sensor flag. Worse case scenario you will have to remove the bypass tray pick up assembly to remove the jam.

Kevin Gumpp is a certified printer technician and freelance writer for Market Point. 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.