On Wed, 2021-07-14 at 12:20 +0200, Bob Marcan wrote: > Canon Inkjet cannot be used without working printing part. > Forgot the model. M-something. > It means, even empty cartridge will prevent using scanner. > You can find a lot of funny videos about that on YT. > Our family scraped 3. They was bought by my son of law. > He is a type of a customer they can count on. :-) Back when I had an HP Deskjet 600 it wouldn't print unless the black and the tri-colour cartridges had some ink in it. I rarely ever used colour, so it was mostly wasted by unavoidable cleaning routines and drying out. I ended up junking the printer, but I've often wondered if I'd pulled out the colour cartridge and left it soaking in water, whether it would have hydrated it enough to fool the printer into thinking it wasn't empty. They couldn't be refilled, they were sealed. If you drilled a hole in and tried a third-party refill, the tank would just empty out overnight because it wasn't airtight anymore (even when you did your best to seal it). It's expansion airvent was at the bottom of the tank, just to be a bastard. That was a messy discovery. Even if you don't have ink tank problems, most printers eventually get you with a filled up cleaning tank (where the ejected ink during cleaning, and parking is collected). They're often buried, have no access without complete disassembly, and no spare parts are available. Some (maybe all) laser toner cartridges have a similar issue. The toner is spread on the drum, exposed and the bits that will print have toner clinging on them, the bits that will be blank also have toner but not statically adhered to the drum. That wasted toner is collected somewhere, usually in some other compartment of the supply toner, but some systems may have a separate waste hopper. It could actually be used to print with, but it's not available for use. -- uname -rsvp Linux 3.10.0-1160.31.1.el7.x86_64 #1 SMP Thu Jun 10 13:32:12 UTC 2021 x86_64 Boilerplate: All unexpected mail to my mailbox is automatically deleted. I will only get to see the messages that are posted to the mailing list. _______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/users@xxxxxxxxxxxxxxxxxxxxxxx Do not reply to spam on the list, report it: https://pagure.io/fedora-infrastructure
