Question about HP LaserJet 2420 Printer
Look for a broken tab on top of your cartridge; if you have one, the laser safety interlock is not being opened when the cartridge is inserted. Install new cartridge.
If you don't have cartridge damage, there may be a failure of the laser assembly or (less likely) the engine controller board.
Posted on Nov 16, 2009
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Posted on Jan 02, 2017
If you scanner error 5 or printer hangs at scanner bulb warming up than the issue is with Scanning Assembly inside the printer and it is hardware issue.
Posted on Jul 02, 2009
SOURCE: HP Laserjet 2420dn - Faint
Posted on Oct 30, 2008
The device has experienced an internal
Posted on Mar 22, 2009
This could be a firmware fault on the main formatter board inside the printer
1. Press CANCEL JOB to clear the
print job from the printer
2. Turn the printer off, and then
turn the printer on again.
3. Go to http: www.hp.com/
Click Download Drivers and
Software. Check for the
latest firmware image version
at the bottom of the page. If
this firmware image is newer
than the one installed on the
printer and the printer can
receive a firmware update,
download the newer firmware
upgrade. Not all printer
models can receive firmware update
Posted on Jan 01, 2010
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