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You or your customer has an HP 4200, 4250, 4300, 4350, P4014, P4015 printer that keeps jamming. You’ve replaced the rollers, the paper feed assembly, but nothing seems to fix it. You notice it’s fine on Tray 1, but tray 2 it’s jamming, then It’s time to look at the tray 2 solenoid. On these printers the tray 2 solenoid isn’t hard to get to. The service manual can give you more detail, but it’s nothing more than removing the top cover, the right cover, and 1 screw to remove the solenoid. The picture below shows the location of the tray 2 solenoid.

When you remove the Solenoid, a good solenoid will not stick at all. A solenoid with a failing pad will stick for a fraction of a second, as the printer warms up, this becomes long enough to cause a misfeed as the rollers will get an extra unexpected turn(s) when the solenoid sticks. Now you might think, I’ll just remove the sticky pad and all will be fine. Unfortunately this doesn’t work. It only makes it worse if you remove the pad.

Fortunately it’s an easy fix with a new solenoid. On the 42×0/43×0 series it’s easy to unwire the solenoid, but on the P401x series it’s a little more complicated to unwire, but not horribly so. The part isn’t expensive. MB Technical Services can fix this for you or any other problems with your printers. Contact us today.

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