asked Jan 18, 2016 at 7:43am
Hp HP LaserJet 4

LaserJet 4 won't Power Up

I have a this wonderful LaserJet 4 which will power up (sometimes). Other times switching it on does nothing. I just turned it on and the indicator lights lit up without lighting up the display, it began to warm up, then completely shut down. Any hints?? If I need to replace the power supply, do you have one of these for this old jem available?? Thanks!! SaTerraji

I haven't seen that particular behavior on that model. It either works or it doesn't. My first choice would be the power supply.


by moe on Jan 18, 2016 at 9:42pm Add comment

I was wondering if you have found a resolution to your problem. I am having the same problem with my LJ4. Sometimes it begins to start, other times it does not. But it never gets past the startup.

by Bob1 on Sep 21, 2016 at 3:11pm Add comment