Your faith in HP products is misplaced, I think.
I had an HP2605DN color printer that suffered that problem (and an
Internet search will show that I wasn't alone). Over time the print
quality would seriously degrade because toner dust would coat the
internal mirrors. After messing with that process twice I took the
printer to the recycler and vowed to never buy another HP laser printer.
And I only ever used genuine HP toner cartridges.
On 10/14/19 12:40 AM, Keith Lofstrom wrote:
Too
large, and the colors don't mix right or blend smoothly.
Too small, and the smallest grains blow all over the place,
especially into the scanner assembly and mirrors. HP and
most OEMs don't just grind up the toner powder, they sift
it by size.
Cleaning the mirrors is a NASTY disassembly job on the
HP2605; the scanner box is buried in the center of the
machine. Access requires removing about 40 screws,
three circuit boards, and a dozen cables.
So, I belatedly "have religion" regards toner. I will
buy $120 OEM HP cartridges soon, rather than $50 brandX
refills,
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