Canon PRO-1000 print color shift

[evanlparker]

Hopefully someone in the community is also experiencing this issue and/or has a resolution:

Canon PRO-1000 running current firmware.

Printer driver v 24.30.0.0

MacOS 12.6.8/PS 23.5.3 (M1 Max)

MacOS 13.5.1/PS 24.7.0 (M2 Max)

All prints from Photoshop using 3rd party ICC profiles with Photoshop Manages Colors are shifted yellow, and black point is lightened. Issue is repeatable on 2 different machines, and present with PS 2020 to current. Driver has been reinstalled with no improvement. Printer is not using AirPrint. Output ICC profiles are v2.4, and all color settigns are correct. The same images printed from Preview are rendered accurately.

Prints on Epson printers with the same settings and workflow from Photoshop are correct.

[MarkDS]

Whose ICC profiles are you using? If it doesn't happen with Preview or with Epson printers it would suggest a problem with profiles made for the paper you are using and Canon Pro1000.

[evanlparker]

Profiles were created with i1 Profiler, and some with the legacy dropRGB from BasICColor.

Prints are accurate on Intel processor Macs running OS 12.6.4 with PS 20.0.10, and all OS/hardware combinations prior.

[MarkDS]

Hi Evan - could you try an experiment with one print, one of those profiles, setting 8-bit in both the printer driver menu and the Photoshop Print function where the choices of 8- versus 16-bit printing are offered, and see whether that improves the situation.

[MarkDS]

Evan - on further thinking about this, when you were NOT using Photoshop for printing, the prints were accurate. When you were not using the Canon printer, the prints were accurate. The OS and Mac processor are probably not the issue because you got accurate prints from Preview as well as from Epson printers. I am, I believe reliably, informed that Photoshop uses its own colour management algorithms for printing, not MacOS, the purpose being to assure consistency between Mac, Windows and the updates of both for users printing from Adobe applications. Assuming that you were using application colour management when printing with Preview, and the results were fine, it would suggest the profiles may be OK. This would then narrow the problem to some colour matching issue between recent versions of Photoshop and recent versions of Canon's printer software, (firmware or driver depending on which picks up the RGB output to the printer and converts it to CMYK - I don't know the detail here). Anyhow, upshot is that I would suggest two things (1) if you can, think back about the timing of various Canon software updates relative to the timing of your first seeing this problem, likewise for Photoshop, and (2) raising the issue with Canon's printer specialiast tech support in Melville NY to learn whether they are aware of such problems and could help.