Alan P

asked Nov 25, 2009 at 2:48am
Hp HP LaserJet 4SI

HP Laserjet 4Si - Fuser Lamp Replacement

I got an error 50 message and have measured the lamp resistance - it has blown.
I have managed to track down a replacement lamp.

Does anyone have details of how to remove the lamp from the fuser unit - it isn't obvious which screws you need to remove and there are a lot of them?
We have replacement lamps for it. There are no instructions available on taking the fuser apart. That fuser is particularly difficult to disassemble and reassemble. A lot of stuff has to come off and go back just the right way. I wouldn't recommend attempting it unless you are very mechanically inclined. Also, by the time the lamp burns out, there are other things on the fuser that have gone bad, like the upper and lower rollers, bushings gears. You would probably be best off getting a replacement fuser http://www.fixyourownprinter.com/specials/parts/fusers/S102
by moe on Nov 25, 2009 at 9:40am Add comment
Thanks for the info! - Anonymous