Good day @Jen Jen
This message usually appears when the paper size configured in the Word document does not match the paper size set in the printer driver. Even if the printer is set to A4, the document itself may still be configured as Letter, which triggers the warning when using Quick Print.
Please try the steps below:
1. Check the paper size in the Word document
- Open the document in Word.
- Go to the Layout tab.
- Select Size.
- Make sure the paper size is set to A4 (or the same size your printer is using).

2. Verify the printer’s default paper size
- Close Word.
- Open Control Panel > Devices and Printers.
- Right-click your printer > Printing preferences.
- Look for Paper Size / Document Size.
- Confirm it is set to A4.


3. Save the document after correcting the paper size
After changing the paper size in Word, save the document and try Quick Print again.
If the issue continues, please let us know:
- The Word version you are using
- The printer model
- Whether the issue happens with all documents or only one specific file
This will help narrow down whether the behavior is related to the printer driver or the document settings.