Laserjet 2420
I was having print quality issues with a grey background and faint type.
So I bought a toner cartridge.
This is an original HP Q6511X. However, while still sealed, was several years old.
Using this, the background of the page is now clean, white, but the text is faint, like an almost empty cart, and very faint in bands 48mm apart.
page-2021-11-04.jpg
Tried dialing up the toner density from default 3 to max 5, but not much improvement.
The service manual says of repetitive defects at 48 mm "the print cartridge might need to be replaced." Not very specific.
I saw elsewhere that faint text might be caused by a dirty transfer roller. (Second photo.) So I wiped that with a clean cotton cloth. No obvious improvement.
roller-2021-11-05.jpg
Might it be a bad electrical contact? Where exactly does the toner cart connect electrically?
Do I just have a bad cartridge, or is this likely a problem with the printer?
I was having print quality issues with a grey background and faint type.
So I bought a toner cartridge.
This is an original HP Q6511X. However, while still sealed, was several years old.
Using this, the background of the page is now clean, white, but the text is faint, like an almost empty cart, and very faint in bands 48mm apart.
page-2021-11-04.jpg
Tried dialing up the toner density from default 3 to max 5, but not much improvement.
The service manual says of repetitive defects at 48 mm "the print cartridge might need to be replaced." Not very specific.
I saw elsewhere that faint text might be caused by a dirty transfer roller. (Second photo.) So I wiped that with a clean cotton cloth. No obvious improvement.
roller-2021-11-05.jpg
Might it be a bad electrical contact? Where exactly does the toner cart connect electrically?
Do I just have a bad cartridge, or is this likely a problem with the printer?
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