HP LaserJet Enterprise 700 Printer M712 series - Manual (Page 169)

The file does not print from the USB flash drive
1. Make sure that paper is in the tray.
2. Check the control panel for messages. If paper is jammed in the product, clear the jam.
The file that you want to print is not listed in the Retrieve from USB
menu
1. You might be trying to print a file type that the USB printing feature does not support. The product
supports .pdf, .prn, .pcl, .ps, and .cht file types.
2. You might have too many files in a single folder on the USB flash drive. Reduce the number of files
in the folder by moving them to subfolders.
3. You might be using a character set for the file name that the product does not support. In this case,
the product replaces the file names with characters from a different character set. Rename the files
using ASCII characters.
ENWW Solve easy-access USB printing problems 159