imageCLASS MF643Cdw - Duplex Option Missing on macOS Tahoe

[Lev1337]

Hello,I am experiencing an issue with my Canon MF643Cdw printer on macOS Tahoe. The printer connected and printing correctly, however the macOS print dialog does not show any option for enabling/disabling 2-sided (duplex) print

What I have already checked and tested:

• AirPrint and IPP are enabled on the printer

• Bonjour/mDNS discovery works correctly

• The printer appears properly in macOS and CUPS

• Printing works successfully

• The printer’s web UI has 2-sided printing enabled

• Duplex support exists in the driver (duplex2/2-Sided Printing: none DuplexNoTumble DuplexTumble)

• I can manually enable duplex through terminal using:
  lpoptions -p PRINTER_NAME -o duplex2=DuplexNoTumble

• However, the macOS print UI still does not show any duplex/2-sided printing option anywhere

Things I already tried:

• Removed and re-added printer multiple times

• Added printer via Bonjour, IPP, and socket://IP methods

• Installed latest Canon drivers

• Completely removed Canon drivers and reinstalled

• Tried adding printer with Canon driver instead of AirPrint/IPP Everywhere

• Reset CUPS and macOS printing system

• Cleared printer caches and PPD files

• Tested from Preview/TextEdit

• Checked all print dialog sections (Layout, Printer Features, Finishing, etc.)

• Verified duplex settings through CUPS

• Rebooted printer and Mac multiple times

The issue appears to be specifically related to the Canon driver UI on macOS Tahoe, because duplex functionality technically works through terminal commands, but the graphical print interface does not expose the option.

Could you please advise if this is a known compatibility issue with macOS Tahoe or if there is an updated UFR II driver/plugin available?

Thank you.

[DerrickL]

What version of Tahoe are you using? There is a three week old UFR driver package for your printer for TahoeV26. Here is the download link. 

https://pdisp01.c-wss.com/gdl/WWUFORedirectTarget.do?id=MDEwMDAxMjg4MzAx&cmp=ABR&lang=EN

[Lev1337]

I'm using Tahoe 26.4.1 with driver version V10.19.24

[DerrickL]

That is the same version I posted the link to. 

[Lev1337 · Accepted solution]

Steps to Fix Missing Duplex (Two-Sided Printing) Option on macOS

I’m not entirely sure why these steps resolved the issue, but this was the only method that successfully restored the duplex (two-sided printing) option for my Canon printer on macOS.

1. Edit the Printer PPD File

Open the Terminal and run the following command (replace PrinterName with the exact name of your printer):

sudo nano /etc/cups/ppd/PrinterName.ppd

2. Enable the Duplexer Option

In the PPD file, locate the section containing printer settings (for example, near the *LanguageLevel entry) and add the following line:

*Duplexer: True

3. Save and Exit

In Nano:

• Press Ctrl + O to save the file
• Press Enter to confirm
• Press Ctrl + X to exit the editor

4. Restart the CUPS Printing Service

Run the following commands in Terminal:

sudo launchctl stop org.cups.cupsd
sudo launchctl start org.cups.cupsd

5. Reset the Printing System

1. Open System Settings → Printers & Scanners
2. Hold the Control key and right-click in the printer list area
3. Select Reset Printing System

6. Reinstall the Canon Driver

Download and install the latest printer driver from the official Canon website.

7. Restart Your Mac

After the driver installation is complete, restart your Mac.

8. Re-Add the Printer

Add the printer again in Printers & Scanners