Hello Adrian; thank you for your report.
On Sun 20 Aug 2017 at 15:20:15 +0200, Adrian Immanuel Kiess wrote: > Package: hplip > Version: 3.17.7+repack0-3 > Severity: normal > > Dear Maintainer, > > * What led up to the situation? > I assume updating HPLIP and or CUPS > * What exactly did you do (or not do) that was effective (or > ineffective)? > Updating the system on regular schedule > * What was the outcome of this action? > The HP LaserJet M452dn won't print colors correctly anymore > * What outcome did you expect instead? > Printer working correctly as before > > currently under Debian/testing my HP LaserJet M452dn color printer won't print > colors correctly anymore. > > Afer adjusting the density "contrast" to "5" in the web console for all colors > and black, black and white printing works correctly again. > > But I found no solution for color printing. > > Attached to this bug report I added a sample printout of a color print - there > you will see that colors are printed uncorrectly. > > In addition to that, attached I have a demo page printout from my M452dn. > > The third image is a screenshot of HPLIP GUI software, showing the version > number used. > > I like to note to have acceptable printout in black and white I have to set > the > "Photo Neutral Greys" to black switching this from 4-color default setting. We note that the problem also occurs when a print queue is set up with CUPS; using localhost:631, we suppose. Can you remember whether you used hp://... or usb://... as the connection (the device URI)? Did you originally use hp-setup to set up the printer? hplip is presently at version 3.17.10+repack0-1 and cups-filters and cups have new versions too. Please would you update your system and report on the printing output. Regards, Brian.
