You hit print, the job disappears into the queue, and nothing happens. Or the TR8620a grabs paper, rolls it through, and spits out a blank page. This printer runs on 2.4 GHz WiFi only and uses five individual cartridges, so the fix is rarely what you expect at first.
Start with the fastest fix: clear the print queue and power-cycle the printer. On Windows, go to Settings > Bluetooth and devices > Printers and scanners, click the TR8620a, and select Open print queue. Cancel every job in the list. Then unplug the printer for 30 seconds and plug it back in. Send a new test page. Most stuck-queue issues clear right here.
Check All Five Cartridge Levels First
The TR8620a uses a PGI-280XL pigment black cartridge plus four CLI-281 color cartridges (cyan, magenta, yellow, and photo black). This printer halts all printing if any single cartridge reads empty, even for a black-only document. Open Canon PRINT on your phone or the printer status monitor on your computer and check each level. If one is at zero or close to it, replace it before you do anything else.
I've seen people spend an hour troubleshooting network settings when the real issue was an empty yellow cartridge they forgot about.
Restart the Print Spooler on Windows
If the queue won't clear normally, the Windows print spooler probably crashed mid-job. Open Command Prompt as Administrator. Type net stop spooler and hit Enter, then net start spooler and hit Enter. That restarts the spooler cleanly. Check the queue again; the stuck job should be gone.
If the spooler refuses to start, a corrupted job is blocking it. With the spooler stopped, open %windir%\System32\spool\PRINTERS in File Explorer, delete everything inside that folder, then start the spooler again.
Reset the Print System on macOS
On a Mac, open System Settings > Printers and scanners. Right-click anywhere in the printer list and choose Reset printing system. This wipes all configured printers. Confirm the action, then re-add the TR8620a using the + button. A fresh add usually clears any stuck-job issues that carried over from a previous driver install.
Run the Print Head Cleaning Cycle
If the printer goes through the motion but pages come out blank, streaky, or with missing colors, the print head is clogged. The dye-based color cartridges in this model tend to clog after two or three weeks without use. On the TR8620a touchscreen, tap Setup > Maintenance > Cleaning. Run a standard cleaning cycle, which uses a small amount of ink and takes about 90 seconds. Print a nozzle check pattern after it finishes.
If the test still looks bad, run Deep Cleaning from the same menu. It uses more ink but clears stubborn clogs that the standard cycle misses. Don't run more than two deep cleanings in a row, you'll burn through a noticeable amount of ink.
Fix the Mesh WiFi WPA3 Problem
This is the most common issue with the TR8620a on modern home networks. The printer only works on 2.4 GHz WiFi, and its radio doesn't support WPA3 security. If you're on Eero, Orbi, or Deco mesh, the router probably has WPA3 enabled by default, which blocks the printer from staying connected. You might see the printer in the Canon PRINT app one moment and lose it the next.
Open your mesh router's app and look for WiFi security settings. Switch from WPA3-only to WPA2/WPA3 mixed mode or WPA2-only. This is temporary during setup on some systems, or permanent if your devices don't need WPA3. Once the router switches, power-cycle the printer, then re-pair it through the Canon PRINT app. Most dropouts stop immediately.
Set the TR8620a as Your Default Printer
Windows 11 has a habit of switching your default printer to whatever you used last. Open Settings > Bluetooth and devices > Printers and scanners. Toggle off Let Windows manage my default printer. Click the TR8620a and choose Set as default. Now print jobs always go to the right place instead of landing in Microsoft Print to PDF.
Update the Driver from Canon's Site
If you're on macOS 26 or Windows 11 24H2 with an older driver, Canon released updates that fix several stuck-queue bugs specific to this model. Go to Canon's support page, search for the TR8620a driver, and download the latest for your OS. Uninstall the old driver first, install the new one, then re-add the printer. The whole process takes about five minutes and resolves most protocol mismatches that cause silent print failures.
Inspect the Paper Path for Hidden Scraps
The TR8620a has paper sensors along the entire path that trigger phantom jam errors when even a tiny scrap gets stuck. Open the rear access door and the front cartridge access panel. Shine a flashlight along the paper path and look carefully for torn paper, wrinkled corners, or small strips lodged against rollers. The auto-document feeder also hides stuck paper out of view, so flip open the ADF cover and check the rollers there too.
Pull out anything you find, close everything up, and try printing again. This clears phantom jam errors that look exactly like a hardware failure.
Factory Reset the Printer Via the Touchscreen
If nothing else has worked and the printer is behaving erratically, a full factory reset can clear corrupted settings. On the TR8620a touchscreen, go to Menu > Setup > Device settings > Reset settings > Reset all. This wipes your WiFi settings, custom paper profiles, and any stored fax data. You'll need to re-enter your network credentials through the Canon PRINT app afterward.
Check for Support Code 1700
If the TR8620a refuses every job and shows Support Code 1700 or 1701 on the screen, the waste ink absorber pad is full. This isn't something you can fix at home. The printer locks down to prevent ink from leaking inside the chassis. Note the error code and contact Canon support. No factory reset or cleaning cycle will clear a 1700 code, and ignoring it can damage the printer permanently.
