Take the following steps to flash or upgrade the firmware for your Nisca PR5310 or PR5350 printer:
Go to Nisca’s websiteNote: you will need to register or login as a visitor to download the firmware.
Download the latest firmware for your printer onto your desktop. It will be a .npr file.
Next, from the same site, download the Firmware Update Utility that best suits your connection type (USB, SCSI or Parallel). Running this utility will create a folder titled ‘Download.’ In this folder, run the setup.exe application.
After setting up the Firmware Update Utility, find it in your Start menu and run it. Once running, click on the Search button.
Click on your printer, then click on the Download button. Find the firmware file you downloaded onto your computer, then follow the rest of the process to complete the firmware update.