If the HP LaserJet 9050n printer does not turn on, there are six things to check but more than likely, it will be one of two things: The Formatter or the Power Supply Unit.
00:00 – HP LaserJet 9050n will not power up.
00:30 – Channel Intro.
00:37 – Reset the power module and test the wall outlet.
00:44 – Test the printer Power button or switch.
00:51 – Test the power with another compatible power cord.
00:58 – Test the power without the USB cable.
01:05 – Service the printer.
01:08 – Left view of the printer.
01:13 – Unplug power and ethernet cable.
01:41 – Rosewill Tool Kit.
02:15 – Phillips Head Bit.
03:21 – Formatter.
06:37 – A torn piece of paper.
07:55 – Power Supply Unit.
10:10 – Bad printer storeroom.
11:30 – Replacement PSU from the bad printer.
12:36 – 4 black power supply screws.
13:35 – Status of the power button.
13:52 – Fan noises mean it is fixed.
14:00 – Formatter is not yet installed.
14:45 – Pending print jobs that came out.
15:20 – The printer is working successfully.
Stephan Pringle
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