My HP Envy 4520 incorrect paper message when correct paper is loaded

[dbflowers]

I'm suddenly getting an error message that states incorrect paper is loaded in the main tray and it cannot print envelope #10.  This occurs when I have plain paper loaded in the tray and no envelopes.  I've tried everything I know to remove this message even resetting to factory default settings, nothing works.

[Riddle_Decipher]

@dbflowers I have a few steps that should help resolve the issue:

(Did the issue occur after a recent windows update?)

Step 1: Adjust the paper size setting

Check the paper size setting to make sure it matches the paper you want to print.

NOTE: 

Some printers have an option to ignore the error and continue printing. If you choose to ignore the error, the margins on your printout might not be proportional to the edges of the paper.

1. In the program you want to print from, click File, and then click Print.

2. Make sure your printer is in the Name or Printers drop-down list box, and then click Properties, Printer Properties or Preferences.

3. Click the Paper/Quality tab.

4. Click Advanced, if necessary, and then click Paper Size.

   

5. Select the paper size that matches the size and type of paper loaded in the printer tray, and then click OK. If there are no matching paper sizes, select the size from the list that is closest to the size of the paper loaded in the tray.

6. Click OK, and then try to print.

   NOTE: 

   If you are printing envelopes, you might need to change the mail settings of the program you are printing from in addition to adjusting print settings in the driver. For information on changing envelope settings in Microsoft Word, see How do I adjust the envelope settings in Microsoft Word? in the FAQ section of this document.

If the issue persists, continue to the next step.

Step 2: Check the paper source setting

Remove and reload the paper in the input trays, and then check the paper source setting.

1. Remove all the paper from all the printer input trays.

2. Reload the paper, and then adjust the paper width guides so they gently rest against the edge of the paper stack.

3. In the program you want to print from, click File, and then click Print.

4. Make sure your printer is in the Name or Printers drop-down list box, and then click Properties, Printer Properties or Preferences.

5. Click the Paper/Quality tab, and then click Paper Source to select the correct tray.

6. Click OK, and then try to print.

If the issue persists, continue to the next step.

Step 3: Reset the printer

Reset the printer to clear any hardware issues or error states.

1. With the printer turned on, disconnect the power cord from the printer.

2. Unplug the power cord from the power source.

3. Wait 60 seconds.

4. Reconnect the power cord to a wall outlet and to the printer.

   NOTE: 

   HP recommends plugging the printer directly into a wall outlet.

5. Turn the printer on.

P.S: Welcome to HP Community 😉

Let me know how that pans out,

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Just in case you don't get back to us within 24 - 48hrs, and have a good day, ahead.