topic Re: Pixma TR8620 printing issues - black text prints intermittently in Desktop Inkjet Printers

PIXMA TR8620 printing issues - black text prints intermittently

MLG — Sun, 14 Dec 2025 13:11:01 GMT

I upgraded to MAC 12.7.6 and printing with the TR8620 was fine for a couple of months - until it wasn't! Black printing is intermittent or prints partial words; color is fine. Nozzle check is perfect, but I did a couple of cleans and a deep clean. Print head alignment completed. I reinstalled software including a new driver, updated firmware. Printer Test Page shows a few words, rest is "streaky"/incomplete with the color portion fine. Canon print cartridges used. I am able to print some saved pdfs but not others. Has anyone else seen this?

Re: Pixma TR8620 printing issues - black text prints intermittently

DerrickL — Sat, 13 Dec 2025 23:14:54 GMT

How is the ink level in the black cartridge?

Re: Pixma TR8620 printing issues - black text prints intermittently

MLG — Sat, 13 Dec 2025 23:30:45 GMT

Levels were good throughout the testing. I replaced the small one (BK 281) just to see if there would be a change, but no difference. PGBK (large one) is about 1/3 full.

Re: Pixma TR8620 printing issues - black text prints intermittently

jrhoffman75 — Sun, 14 Dec 2025 12:59:28 GMT

Give Canon support a call at 1-800-OK-CANON

Re: PIXMA TR8620 printing issues - black text prints intermittently

DerrickL — Sun, 14 Dec 2025 15:28:03 GMT

I found this forum thread posted by a user with what seems like the same issue you are having:

https://www.printerknowledge.com/threads/no-pigment-ink-printing-from-tr8620.16187/

Re: Pixma TR8620 printing issues - black text prints intermittently

MLG — Tue, 16 Dec 2025 20:41:01 GMT

Thanks for the advice. I tried printing again with no luck (several different pdf's, a spreadsheet page, etc.), but decided to see if I could copy in black. That worked. Then I went back to printing a pdf and that worked too. Is it possible copying reset some sort of setting? Same type of paper too.

Re: PIXMA TR8620 printing issues - black text prints intermittently

MLG — Tue, 16 Dec 2025 20:44:11 GMT

Thanks for checking on this. Not quite the same. I got some black printing and my nozzle check page was perfect, unlike the person in the thread. I decided to try copying a page in B&W and it worked.....I went back to trying to print and now I am able to print in black too - pdf's and other types of documents. No idea what changed.