This certainly is not Trinity related but as this list is full of experienced people...
For some time (I *think* since I moved to Debian 9 but not sure) I get smeared outputs of my trusty Laserjets. I have both a 4200 and a 4250 (I prefer to buy second hand, Postscrypt, professional printers to first hand consumer-grade stuff). Not always, tends to happen more when printing double sided and less when the printer has been off a while.
I had thought this was old cartridges and I had to survive until I change them, but today I had to print some older stuff that dwells on my old hackintosh and... beautiful print! No problem at all.
So. Then it's Linux, not the printers.
I'll soon make a test install of the latest openSuSE and see if there is a difference. Both MacOS and Linux using Cups, I'd have thought that standard, Postrcrypt drivers would be the same.
Thierry
Thierry de Coulon wrote:
So. Then it's Linux, not the printers.
Can you check how the printer is setup and where the conversion is done into what format. It might be a matter of selecting the correct driver for the printer. I don't have any HP 42xx, so I don't know exactly what should be right configuration, but usually what you describe is a result of convertion from something to something with loss of quality.
It looks like your Mac is using local driver to convert to format that is accepted by the printer without loss of quality, while printing from linux uses some odd driver to convert to something with the loss of quality. This could be simply the DPI setting or the driver.
regards
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deloptes -
Thierry de Coulon