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01-24-2022 09:56 AM
I try to print and I keep getting the PAPER SIZE MISMATCH. I have tried several things but nothing changes. I use the 8.5 x 11 inch paper. I have changed all settings to LETTER and it still will not print. I have the HP Office Jet Pro 6978. I bought June 23, 2021.
01-24-2022 10:36 AM
Welcome to the HP User Community.
Windows S mode is particularly limited in what is allowed.
For example, applications can only be installed from the Microsoft Store
This means you cannot install the Full Feature Software / full driver printer software in Windows S mode.
You can install and use the HP Smart application.
HP Smart (Windows) and the Embedded Web Server (EWS) can be used to check / modify the Paper Size and Type settings.
EWS can be reached from your browser and / or from within the HP Smart application.
A printer that includes a printer display panel (like your printer) provides access to the paper size / type setup.
Examples and how-to
Check / Adjust / Retain the Paper at the Printer Display Panel
Open Printer Tray,
If you have not yet done so, Remove / add desired paper size - type
Wait a few seconds
IF applicable for your printer:
On the Printer Control Display Panel,
Click Modify / Change / No-Yes (wording varies), adjust the paper size and type, Click OK
No Size? If the size of the Paper Size is not in the Drop-down list, Select Custom
Note: Not all printers allow selection of “Custom”
EWS > HP Document / How-to
EWS – Browser – Tray and Paper Management
Open your favorite browser > type / enter Printer IP address into URL / Address bar
Tab Settings > Preferences > Tray and Paper Management
Model Dependent: Advanced section
Click Apply to save changes
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EWS - HP Smart – Windows
Start HP Smart Application
In section Settings > Advanced
Tab Settings > Preferences
Tray and Paper Management
Model Dependent: Check / Adjust settings in Advanced
Click Apply to save changes
Example - HP Smart - Windows - Home Page / Main Menu
Example - Retain / Modify (Edit) / Check Paper Size & Type - Tray and Paper Management
References / Resources
Reminder, this is a One-Way-Ticket: Once you leave “S” mode, you cannot go back to “S” mode.
HP Printer Support Home Page - References and Resources – Learn about your Printer - Solve Problems
“Things that are your printer”
NOTE: Content depends on device type and Operating System
Categories: Alerts, Access to the Print and Scan Doctor (Windows), Warranty Check, HP Drivers / Software / Firmware Updates, How-to Videos, Bulletins/Notices, Lots of How-to Documents, Troubleshooting, Manuals > User Guides, Product Information (Specifications), more
When the website support page opens, Select (as available) a Category > Topic > Subtopic
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