How to Fix Canon Printer Print Queue Stuck on Mac — Complete Guide

Mac users dealing with a Canon printer print queue that refuses to clear face a different set of causes and fixes compared to Windows users. The Print Spooler service that Windows uses does not exist on Mac — instead macOS manages print jobs through CUPS (Common Unix Printing System), which has its own specific troubleshooting process that most generic printer guides never cover.

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Understanding how macOS handles print queues is the foundation of fixing them correctly. When you send a print job on Mac it goes into a queue managed by the CUPS system running in the background. Each printer has its own queue and its own CUPS instance. When a job gets stuck — from a network interruption, a driver issue, or a formatting problem — it blocks the entire queue and all subsequent jobs sit behind it waiting indefinitely. Unlike Windows where the queue is visible in a straightforward interface, Mac's queue interface requires a few steps to access properly.

Accessing the Mac Print Queue

The first step is accessing the print queue correctly. Go to System Settings then Printers and Scanners. Select your Canon printer from the list on the left side. Click Open Print Queue. The queue window shows all pending jobs. If any jobs are listed right-click each one and select Delete or click the X button next to the job. If jobs refuse to delete or immediately reappear, proceed to the CUPS reset method below.

The CUPS Reset Method

When jobs cannot be deleted through the standard interface, the CUPS system needs to be reset directly. Open Terminal — you can find it in Applications then Utilities. Type the following command and press Enter: sudo lpadmin -x followed by your printer's name. To find the exact printer name open Terminal and type lpstat -p which lists all configured printers with their exact system names. After removing the printer from CUPS, go back to System Settings then Printers and Scanners and re-add the Canon printer by clicking the plus button.

Clearing the CUPS Spool Folder

If the printer continues to have stuck jobs after re-adding it, the CUPS spool folder may contain corrupted job files. In Terminal type sudo rm -rf /var/spool/cups/c* and press Enter, then type sudo rm -rf /var/spool/cups/d* and press Enter. These commands remove all queued job files from the CUPS spool directory. After running both commands restart the CUPS service by typing sudo launchctl stop org.cups.cupsd followed by sudo launchctl start org.cups.cupsd. Re-add the printer if it disappears after the restart.

The IP Address Cause on Mac

A frequently overlooked cause of Canon printer queue issues on Mac is an IP address mismatch. When the router assigns the printer a new IP address after a restart, the Mac's printer configuration still points to the old address. Print jobs send to the old address and never reach the printer — they accumulate in the queue in a pending state that cannot be cleared through normal means. Print a network settings page from the Canon printer by holding the Stop or Reset button for five seconds. Note the IP address. In System Settings then Printers and Scanners right-click the Canon printer and select Edit Printer. Confirm the IP address in the printer's URL or address field matches the one on the network settings page. If they differ, delete the printer and re-add it using the current IP.

AirPrint vs Standard Driver Queue Issues

Mac users have two ways to add a Canon printer — via the standard Canon driver or via AirPrint. These two methods use different queue systems and different troubleshooting approaches. AirPrint queues are managed entirely by macOS and tend to be more reliable because they use mDNS discovery rather than a static IP address, which eliminates the IP mismatch problem entirely. If queue issues persist consistently with the standard driver setup, delete the printer and re-add it using AirPrint — select the AirPrint version when the printer appears in the discovery list rather than the Canon-specific driver version. This resolves persistent queue issues for many Mac users without any further configuration.

macOS Version Compatibility

Canon driver compatibility with macOS changes with each major system update. After upgrading to a new macOS version check Canon's official support site for updated drivers for your specific printer model. An outdated Canon driver running on a newer macOS version can cause intermittent queue failures that appear as stuck jobs. Download and install the latest full driver package from Canon's support site, ensuring you select the correct macOS version. After installing the new driver delete and re-add the printer to ensure the queue uses the updated driver components.

Working through these steps in order — clearing the queue through the standard interface, resetting CUPS, clearing the spool folder, checking the IP address, and considering AirPrint as an alternative — resolves the large majority of Canon printer print queue stuck issues on Mac without requiring hardware replacement or Canon support involvement.