Reply: It seems that the print program did not find the source file, so this problem occurs.

If the file is on the local hard disk, first make sure the file path set in the printing program is correct. If the path is set incorrectly, the file cannot be found.

If the file is stored on another computer on the network, you should make sure that the network of that machine is unblocked; if the printer can communicate with that machine, then there may be a permission problem, and the printer program does not have permission to access the file on the target machine. In this case, the printer program should be assigned a permission to read the file on the target machine.