Duplex option greyed out — enable in driver

Joe B.

Reviewed for technical accuracy

Specialities: Windows 11/10, macOS (Sonoma/Ventura/Monterey), Printers, Networking, Office Equipment

Double-sided printing greyed out on Windows 11/Windows 10 or Mac — HP, Epson, Canon, Brother

Technician

Hey! We’ll fix the duplex option greyed out issue. Tell me your brand — HP, Epson, Canon, or Brother — and whether you’re on Windows 11, Windows 10, or Mac. We’ll enable the duplex unit in the driver and make sure Two-Sided shows up again. Also confirm if your printer supports automatic duplex or only manual duplex.

Customer

Windows 11, HP OfficeJet. Double-sided printing is greyed out everywhere. It used to work, now I can’t select “Print on both sides”.

Technician

Understood. When double-sided printing is greyed out on Windows 11, the common causes are:
• The driver thinks the Duplex Unit isn’t installed, so it hides the control.
• Windows swapped your vendor driver for a Microsoft IPP Class Driver; class drivers often make automatic duplex not available.
• App presets (Word/Acrobat) override the queue default.
Plan: enable Duplex Unit (Installed) in device settings, switch to the full vendor driver, then set the Print on both sides default.

Customer

Where exactly do I turn the Duplex Unit back on in Windows 11?

Technician

Enable duplex unit — Windows 11/Windows 10:
1) Settings → Bluetooth & devices → Printers & scanners → pick your printer → Printer properties → tab Device Settings/Configuration → set Duplex Unit (two-sided) = Installed.
2) In Printing preferences, set Print on both sides = On/Automatic. Save as default.
3) If the option is still greyed out, remove the queue, then install the full feature driver (HP/Epson/Canon/Brother) or the vendor’s Universal Print Driver with duplex support.

Customer

What about my Mac? The Two-Sided toggle is missing entirely.

Technician

Two-Sided missing on Mac — quick fix:
• Re-add the printer in System Settings → Printers & Scanners as AirPrint or the vendor driver (avoid Generic PostScript).
• Open Options & Supplies → Options and enable Duplex Unit if shown.
• In the app’s print dialog, open Layout/Finishing and set Two-Sided = Long-Edge or Short-Edge. Saving a preset prevents the control from disappearing again.

Customer

How can I tell if my printer supports automatic duplex? Maybe it’s not available?

Technician

Automatic duplex vs manual duplex:
• Models with auto-duplex flip the sheet internally; the driver shows Print on both sides/Two-Sided with binding options.
• If your spec sheet lacks duplex or the model suffix doesn’t include dn/DW, you may see automatic duplex not available. In that case pick Manual Duplex in apps to print both sides with prompts.
• If the device does support duplex but it’s hidden, enabling the Duplex Unit in the driver instantly restores the control.

Customer

We use different brands. Any specifics for HP, Epson, Canon, Brother?

Technician

Enable duplex by brand:
• HP: Install HP Smart/Full Feature. In Device Settings set Duplex Unit = Installed. With HP UPD, choose a model/queue with duplex.
• Epson: Use the latest Epson Driver & Utilities. In preferences enable Two-Sided Printing; on macOS use the Epson queue (not Generic).
• Canon: With UFR II/Generic Plus, open Device Settings → enable Duplex Unit; in apps select 2-Sided and binding edge.
• Brother: Install Full Driver & Software Package or iPrint&Scan. In Advanced turn on Two-Sided; verify model suffix (DW/DN) for auto-duplex.

Customer

After a Windows Update the toggle vanished again. Do I need to redo everything?

Technician

One-time hard fix:
• Remove the printer and its driver package (Print Management → All Drivers) and reboot.
• Reinstall the manufacturer’s full package to repair the printer driver for duplex printing.
• Optional: in Device Installation Settings block automatic vendor app/driver changes so Windows won’t replace it with a class driver.

Customer

Any app tips? Word and Adobe still default to single-sided.

Technician

Word/Office: choose File → Print → Print on both sides, then open Printer Properties to confirm duplex; click Set as default.
Adobe Acrobat/Reader: under More Settings enable Print on both sides of paper. If missing, you’re using a generic queue — reinstall the vendor driver.
Google Docs/Browser: open System Dialog (Ctrl+Shift+P / Cmd+Option+P) to access the real duplex settings.

Customer

We print booklets — can we default to short-edge flipping?

Technician

Yes. In the driver, set the queue default to Two-Sided: Short-Edge (flip on short side) and save as a preset. Many Canon/Brother drivers include a Booklet preset that locks binding and margins.

Customer

Perfect — the Two-Sided option is back and prints are double-sided again.

Technician

Summary: If the duplex option is greyed out, enable the Duplex Unit in the driver, switch off generic class drivers, and set duplex as the default in Windows/macOS and apps. For HP/Epson/Canon/Brother, installing the full driver restores Two-Sided. If your model truly lacks auto-duplex, use manual duplex with the correct binding. Need help fast? Open the chat.

Quick answer: the accepted fix

Accepted fix when double-sided printing is greyed out (Windows 10/Windows 11/Mac): set Duplex Unit = Installed in Printer properties → Device Settings, install/repair the vendor driver (not the class driver), and set Print on both sides / Two-Sided as default. If automatic duplex is not available for your model, use manual duplex.

FAQ

Step-by-step (Windows 10/11)

1. Open Printers & scanners → your printer → Printer properties → Device Settings/Configuration → set Duplex Unit = Installed.
2. Open Printing preferences → enable Print on both sides; save as default.
3. If greyed out, remove the queue and install the brand’s full feature driver (repair the driver), then add the printer again.
4. In Word/Acrobat, save a duplex preset (Long-Edge/Short-Edge).

Step-by-step (macOS)

1. Re-add the printer as AirPrint or the vendor queue in System Settings → Printers & Scanners.
2. Options & Supplies → Options → enable Duplex Unit (if shown).
3. In the print dialog choose Two-Sided and set the correct binding edge; save as a preset.

Sources

• Microsoft — Troubleshoot printer problems (Windows 10/11)
• Apple — Print on both sides of paper on Mac
• HP — Drivers & Software
• Epson — Drivers & Utilities
• Canon — UFR II / Generic Plus drivers
• Brother — Full Driver & Software Package

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