This is a user forum so we cannot speak for Canon. One waste cartridge is supporting 12 ink cartridges (11 colors plus coating), so perhaps that is a factor. Whatever the waste or usage that is required is something only a Canon printer engineer could address.
I find the prints on Canon paper outstanding. PPL has some things that are annoying but I learn to work around them (multiple images in PPL often seem to cause issues, so I work with one at a time, etc.). I can't say if other printer manufacturers do better, but I can say that this seems to be the way of things in the world. Few things are truly simple and uncomplicated, and I wish they would fix all of these things to make my life better, but few do that. Amazon used to have the most amazing customer service ever, but now even speaking to a person takes quite a bit of effort.
Can you please share your experiences with the printer support team on the phone that leads you to say "Their response to customer questions is non-existence."? I've not called for support with my Pro-1100, but they have been hugely responsive with all of my other issues.
I admit I haven't even looked for documentation for PPL. A search finds these lessons but not a manual. https://ij.manual.canon/ij/webmanual/ProfessionalPrintLayout/All/CO/EN/DPPG/top.html.
Congrats on the exhibition. I hope it went well for you.
>> Owns/Owned both Canon EOS mirrorless full-frame and APS-C cameras and associated RF, RF-S and EF adapted lenses - inventory tends to change on short notice. Same for flashes, tripods, bags, straps, etc.
Plus>> Canon imagePROGRAF PRO-1100 Printer. My photos are edited using Canon Photo Professional and no Adobe products.
>>The opinions and assistance are my own. Please don't blame Canon for any mistakes on my part.
