Paper Size Mismatch

[crosstrek1969]

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.

[Dragon-Fur]

@crosstrek1969 

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

What?

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.

What else?

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

else

Wait a few seconds

Close Tray

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

Use the HP printer Embedded Web Server (EWS)

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

 -----------------------  -----------------------  -----------------------  ----------------------- 

EWS - HP Smart – Windows

Start HP Smart Application

Printer Settings

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

HP_Smart_W10_Main_Menu_5

Example - Retain / Modify (Edit) / Check Paper Size & Type - Tray and Paper Management

Retain_Printing_Preferences_10

References / Resources

Switching out of S mode in Windows 10

Reminder, this is a One-Way-Ticket:  Once you leave “S” mode, you cannot go back to “S” mode.

Windows 10 in S mode FAQ 

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

HP OfficeJet Pro 6978 All-in-One Printer 

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