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Black band near top of page HP LaserJet 4250 4350 4240

If your printer often prints a black band of toner at the top of pages -- usually the band is 2 to 3 inches tall and stretches the entire width of the page -- on the LaserJet 4250 , 4350, or 4240 series printers this is a sign of a failing high voltage power supply.

Failing power supplies become more of a common problem as these printers age. Replacing the power supply is considered an advanced procedure; we do have installation instructions available. If you are doing the repair yourself you can plan on 1 hour to 1.5 hours install time.

Click here to order the power supply for LaserJet 4250 4350 4240 series printers

Click here for installation instructions for the power supply, HP LaserJet 4250 4350 4240 series

If you don't want to do the repair yourself,
you can send the printer to us for repair
or consider ordering a replacement printer, we carry a variety of quality refurbished laser printers.