“Every time I would go to print something it would tell me that the photo paper was out, even though I was not printing a photo.”
Some software might have set your default “print to this paper”, to the photo tray. You can also set each document to the paper you want, in many software programs.
For example, I have my PDF software set to default to “manual feed tray, paper type: labels”, since what I print most often is USPS address labels.
On the printer, set the paper in each paper tray, using the printer’s menu. Or, when the printer is paused waiting for a specific paper type (requested by your computer’s software), when you press the “OK” button (or whatever button your printer expects) it remembers that paper “is in that tray”.
If you print a bunch of documents, and some have different paper types specified, you can send them to the printer all at once, and the printer will print those for the “current paper”. Then when you tell the printer you’ve changed to another paper type (letter/legal, plain/colored/labels, etc) it will print all those documents. A business might have the first page of documents on letterhead and other pages on matching bond paper; and other documents all on plain paper. If the printer has three paper trays, it will automatically pick the tray for the current page.
In LibreOffice Writer, go to the File, Printer Settings menu; when you click the “Help” button, it says “Select the default printer for the current document”; so you can set the paper type for each document, and if you use a document template to make the document the document will inherit the settings from the template.
In Printer Settings, in the Paper tab you set Paper Size and Duplex (aka “double-sided” printing) and Paper Tray; in the Device tab you set Media Type (plain, several paper weights, labels, letterhead, envelopes, preprinted, colored, bond, etc).