<!-- from fixya rte -->Make font larger on HP1510 printer - HP PSC 1510 All-In-One InkJet Printer

What font are you referring to? Have you prepared a document in a word processing program, or added text to an image file, and are disappointed because you want to see the text printed larger? If so, your best solution is to edit the document or image and change to a larger text size. For example, most text documents will normally default to either a size 10 or 11 text which is readable but small. Changing to size 12 or 14 will make the text look larger onscreen, and the text will also print larger. The font name and font size should be displayed on one of your processing program's toolbars, and is easily changed to a different font name or size. If you are simply copying an already printed document and want the text to appear larger, you should refer to your printer's User Guide. If you don't have the User Guide, you can download a free copy at this link:
HP PSC 1510 All in One Printer User guides