Duplex printing lets you print on both sides of a sheet of paper automatically. This saves paper, reduces physical document size, and is standard in many business environments. Word supports duplex printing through both printer hardware settings and software-based manual flipping. This article explains how to enable automatic duplex printing on a supported printer and how to print manually on both sides when your printer does not support duplex.
Key Takeaways: Setting Up Duplex Printing in Word
- File > Print > Printer Properties > Duplex Unit (or Two-Sided): Enables automatic duplex printing on a supported printer.
- File > Print > Manually Print on Both Sides (flip on long edge): Prompts Word to print odd pages first, then asks you to reinsert the paper for even pages.
- Printer driver settings override Word settings: Always check the printer’s own duplex option before printing, as it can conflict with Word’s setting.
What Duplex Printing Is and What You Need Before Setting It Up
Duplex printing means the printer automatically turns the paper over after printing the first side and prints the second side. This requires a printer with a duplex unit built in or an optional duplex add-on. Most office laser printers and many inkjet models include duplex as a standard feature. You can check your printer’s manual or the printer’s front panel for a duplex icon or setting.
Before you start, confirm three things. First, your printer must have duplex capability enabled in its driver. Second, the paper tray must hold enough paper for the full document; duplex printing uses more paper per minute and can cause jams if the tray is low. Third, for manual duplex printing, you need to know which way your printer flips the paper — long edge or short edge. Long edge flip is standard for portrait documents; short edge flip is used for landscape documents.
When to Use Automatic vs Manual Duplex
Automatic duplex is best for high volume printing where speed matters and the printer supports it. Manual duplex is useful for older printers, low cost inkjets, or situations where the duplex unit is broken. Manual duplex requires you to reinsert the paper stack once, so it is slower and prone to misalignment if you do not align the paper correctly.
Steps to Enable Automatic Duplex Printing in Word
These steps work for Word 2016, Word 2019, Word 2021, and Word for Microsoft 365 on Windows 10 and Windows 11. The exact dialog names vary slightly by printer manufacturer, but the menu path is the same.
- Open the Print dialog
Press Ctrl+P or go to File > Print. The Print pane opens on the left side of the window. - Select your printer
Under Printer, choose the printer you want to use. Make sure it is online and has paper loaded. - Open Printer Properties
Click the link labeled “Printer Properties” directly below the printer name. A separate dialog box opens for your printer’s driver settings. - Find the duplex setting
In the printer properties dialog, look for a tab named Finishing, Layout, or Advanced. The exact tab name depends on your printer driver. Inside that tab, locate a setting called “Duplex Unit,” “Two-Sided Printing,” “Print on Both Sides,” or “Double-Sided.” Check that box or select “On.” - Choose the flip direction
If the driver offers a choice, select “Flip on Long Edge” for standard portrait documents. Select “Flip on Short Edge” for landscape documents. This controls how the second side prints relative to the first side. - Apply and print
Click OK to close the printer properties dialog, then click the big Print button in Word. The printer should now print on both sides automatically.
Steps to Print Manually on Both Sides (Manual Duplex)
If your printer does not have a duplex unit, Word provides a built-in manual duplex option. This method prints all odd-numbered pages first, then prompts you to flip and reinsert the paper stack to print the even-numbered pages.
- Open the Print dialog
Press Ctrl+P or go to File > Print. - Select your printer
Choose the printer you want to use. - Enable manual duplex
Under Settings, click the drop-down that currently shows “Print One Sided.” Select “Manually Print on Both Sides.” Word immediately prints the first side of all pages (odd pages). - Reinsert the paper
After the first side finishes printing, a dialog box appears telling you to take the printed stack, flip it, and reinsert it into the paper tray. Follow your printer’s instructions for orientation. Typically, you flip the stack along the short edge so the blank side faces up and the top of the page is at the printer’s input edge. - Print the second side
Click OK or press Enter. Word prints the even pages on the blank side. The document is now complete.
Common Problems With Duplex Printing and How to Avoid Them
Word Prints on One Side Only Despite Duplex Being Enabled
This usually happens when the printer driver’s duplex setting is not being applied. Go back to Printer Properties and verify that the duplex checkbox is checked and that you clicked OK before printing. Some printer drivers have a separate “Apply” button inside the properties dialog. Also check that the paper size selected in Word matches the paper size in the printer driver; mismatched sizes can disable duplex.
Manual Duplex Prints Pages Out of Order
The most common cause is incorrect paper orientation when reinserting the stack. For portrait documents, flip the stack along the long edge (like turning a book page). For landscape documents, flip along the short edge. If your printer feeds paper face up, the blank side must be face down when reinserting. Test with a short document of 4 pages to confirm the orientation before printing a full report.
Printer Jams When Using Duplex
Duplex printing requires the printer to pull the paper back through the paper path. Jams occur if the paper is too thick, curled, or if the tray is overloaded. Use paper that is within the printer’s weight specification (usually 20 to 24 lb bond). Do not fill the tray to its maximum capacity; leave a gap of about half an inch. Clean the paper rollers if jams persist.
Automatic Duplex vs Manual Duplex: Key Differences
| Item | Automatic Duplex | Manual Duplex |
|---|---|---|
| Printer requirement | Printer must have a duplex unit built in or optional | Any printer that can print single-sided |
| Speed | Fast; prints both sides in one pass | Slow; requires user to reinsert paper |
| User intervention | None after starting the print job | Must reinsert paper halfway through |
| Risk of misalignment | Low; printer controls paper path | Moderate; depends on how paper is reinserted |
| Best for | High volume, professional documents | Low volume, occasional use, or printers without duplex |
You can now set up duplex printing in Word using either automatic or manual methods. For daily use, enable automatic duplex through Printer Properties to save time. If your printer lacks duplex hardware, test manual duplex with a short document first to confirm the paper orientation. Remember that the printer driver’s duplex setting always overrides Word’s setting, so always check both locations when troubleshooting.