This power supply is compatible with all HP LaserJet 8100 and 8150 series printers
part numbers: RG5-4357, RG5-4300, C4265-69006, C4214-69020

The problem:
The LaserJet 8100 and 8150 series printers are notorious for the failure of their Low Voltage Power Supplies (LVPS). If the LVPS has gone bad, you will usually see a 50.1 fuser error on your display. In some cases a 50.1 error will mean a low fuser temperature and your fuser has failed, but our experience has shown that at least 80% of the time it is the LVPS . Here's a quick check to determine if the power supply is really the problem: borrow a working fuser from another 8100/8150 printer and swap out your fuser. If the 50.1 error does not go away with a working fuser in place, you need to replace the Low Voltage Power Supply.

Purchasing Information (Please Read):

The following part is sold on exchange. By purchasing a part on exchange you are agreeing to send us your old assembly within 30 days of purchase. If we do not receive your defective part within 30 days we will contact you at the email or phone number given with the order. If the core is not received within 45 days a $110 core charge will be issued to your credit card. Please send your defective parts back in the box we sent along with the the included return authorization sheet. Return shipping charges are your responsibility. The shipping address and return instructions are included in the box.

LaserJet 8100 and 8150 Low Voltage Power Supply - refurbished with exchange:

LaserJet 8100 and 8150 Low Voltage Power Supply - new, with and without exchange: