topic PIXMA TS7720 Only printing Bright red - Nozzle check passes in Desktop Inkjet Printers

PIXMA TS7720 Only printing Bright red - Nozzle check passes

kkraegee — Sat, 02 May 2026 22:16:38 GMT

Hello,

I am printing on cardstock and plain paper and my printer will only print in bright red when the document should be black. I have tried printing in color and in B&W and still end up with the same result. I've tried the nozzle check and it prints black completely fine there. I've also tried running the nozzle cleaning and that doesn't work either. I've also tried printing through the Canon Driver application with no luck. Please help - I have no idea what to do to get it to print in black ink again!!!

Re: PIXMA TS7720 Only printing Bright red - Nozzle check passes

DerrickL — Sun, 03 May 2026 13:06:04 GMT

When you say the nozzle cleaning does not work, the black does not print?

Re: PIXMA TS7720 Only printing Bright red - Nozzle check passes

kkraegee — Sun, 03 May 2026 13:09:21 GMT

When I complete the nozzle check and it prints all colors just fine including black. I’ve ran the nozzle cleaning for good measure but doesn’t seem to fix the issue!

Re: PIXMA TS7720 Only printing Bright red - Nozzle check passes

DerrickL — Sun, 03 May 2026 21:41:33 GMT

Bypass all the Canon setting settings and run a Windows test print. This may help determing if there is a program issue or setting that is wrong.

To print a test page in Windows, go to Settings > Devices > Printers & Scanners, select your printer, click "Manage," and choose "Print a Test Page." If it prints with black ink, something is wrong somewhere in the Canon settings. If it does not print, there is something seriously wrong somewhere.

Re: PIXMA TS7720 Only printing Bright red - Nozzle check passes

esha141 — Mon, 04 May 2026 13:28:02 GMT

This is a really frustrating issue but it is actually a well known problem and the cause is more straightforward than it looks. The fact that your nozzle check prints black correctly is the key clue here — your black ink and print head are working perfectly fine.

What is happening is a color profile or print settings conflict specifically related to cardstock and the Canon driver settings for that media type.

Try these fixes in order:

Fix 1 — Check Media Type Setting

Open the Canon printer driver settings when you go to print. Look for the Media Type setting and make sure it is set to Plain Paper or the correct cardstock setting. When the wrong media type is selected the driver sometimes forces color substitution and routes everything through the color channels instead of black. This is the most common cause of exactly this symptom.

Fix 2 — Force Black and White Correctly

Do not just select B&W in your application. Go into the full printer driver settings by clicking Print then Printer Properties or Printer Settings. Find the Color Mode or Grayscale setting inside the driver itself and set it to Grayscale or Black and White there specifically. Application level B&W settings sometimes do not override the driver color settings correctly.

Fix 3 — Delete and Reinstall Printer

Go to System Settings or System Preferences then Printers and Scanners. Delete your PIXMA TS7720 completely. Restart your Mac. Re-add the printer fresh by clicking the plus button. This clears any corrupted driver settings that may be causing the color channel routing issue.

Fix 4 — Check Ink Selection in Driver

In the Canon printer driver look for an option called Ink Setting or Ink Cartridge Settings. Some Canon models have a setting that lets you specify which ink to use. Make sure it is not set to Color Only which would explain why black documents are printing in red.

The bright red output specifically suggests cyan and yellow are not firing while magenta is — which is a driver settings issue not a hardware issue since your nozzle check confirms all channels work. Let us know which fix resolves it!