HP 2840: HP 2840 color jumps

So, we have a printer/scanner HP 2840 color laser unit. In the last week or two, he started giving impressions with one or more missing colors. It's pretty random, sometimes, printing is fine, and when it omits not a color it can be four. When it prints you can hear the rotating unit to each of the four carts of toner in turn, and when he jumps a noise color is different. I don't know if a gear is tighten or slide or what.

Everyone has seen or knows what I'm looking for?

It is a problem on this series. What has happened is the solenoid which stops the carousel in the correct position is not working properly. You can fix the problem, but it will take a bit of work. This solenoid is a marker that was used to dampen the noise of the arm 'L' hit the metal and also to prevent the arms become magnitized. You must remove the right cover and top cover. Suggest you do a search on google for the maintenance manual. I have attached 2 pages of the manual to show you the location of the magnet. The first page shows how to raise the arm 'L' to move the carousel and the 2nd page shows the coverage you need to remove to access the solenoid. Simply unplug the wire goes to the solenoid on the side of the printer and remove the 1 screw which secures the solenoid on the frame of the printer. Then, you lift the solenoid so that you can access the spring that holds the L arm in place. You remove the spring, remove the L arm and then clean any residual glue left by the cushion on the edge of the solenoid and the L arm. You have to put a form any of replacement down material. I use a very thin buffer of furniture out or you can use the component to a velcro pad. When to remove the solenoid it pull only enough further upward to access what you let the thread on the right side of the printer still outside the box is easy to replace.

Tags: HP Printers

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