Many users report that the "Download Manager" or update utilities show a "Successful upgrades: 0" message even when a newer version is identified. This typically happens because: Laserjet 1320 Firmware Upgrade - HP Support Community
: Ensure the printer is in "Ready" mode (solid green light) before starting the utility. : After sending the update, the lights will cycle. Do not power off hp lj 1320 firmware update exclusive
The exclusive firmware includes a "Toner Density Adjustment" for non-HP cartridges. Navigate to Service → Calibrate → TD Adjust . Set to -2 to improve yield on generic 49X cartridges by up to 18%. Many users report that the "Download Manager" or
Remember: Always verify your hardware revision, use a stable USB connection, and never interrupt the power cycle. If you have successfully completed the update, your HP LJ 1320 will display Ready 00 with a new internal date code. Enjoy another 200,000 pages of flawless printing. Do not power off The exclusive firmware includes