SOURCE: Laserjet cm2320 fxi mfp has scanner error 5
when Printing from my HP 2320 there is a slight blue streak on the Right side of the page
SOURCE: HP L7780 printer doesn't print
First of all, check the cartridges and make sure they have enough Inks. If possible try with different cartridges, something particular cartridge could cause this issue. In you case, you have to concentrate with the Black cartridge since your problem is with Black prints.
Give the print command one after another not all at time, this will help you find out if there's problem with the cartridge or not. If the print quality is normal when printing in slower sequences, then there's problem with the cartridge, perhaps there's bubbles inside the cartridge which affects the ink to flow out normally as it should.
Check the print heads and make sure they are properly aligned.
After all these, follow the steps mentioned here (Click Here). These are the steps recommended by HP, it would take several minutes to follow the steps and diagnose the issue. There are several illustrated pictures with a video tutorial for your reference.
If nothing seems helpful, then there must be electronic or mechanical issue with the printer which will need to be serviced.
Let me know if you need further help.
Good luck.
Thanks for using FixYa.
SOURCE: after trying to install HP
Go to HP Website and download the software from there. It's probably more up to date than the CD.
SOURCE: I have an HP 4345
if you are tec guy?
do half test page test find any image created on catridge drum, if no image found then
Check laser scanner assembly shutter fully operating or not while catride access unit closed, if unable to check, remove the shutter from laser scanner assm
Increase toner density
set factory settings,
If image on drum no print on paper, check transfer roller, contacts, if dirty replace T.roller, no result replace Power supply board..
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