Hello,
We have multiple clients with the LaserJet P1505n. One client reported printing issues so I upgraded the firmware to the newest version. Now, they have even more problems. Printer won't print, unless you power it down and power it up again. Then you can print a few pages and he stops again, until you reboot it. Maybe this was just bad luck?
Today, other client, same problem.. Printer prints black block instead of images. I upgraded firmware, same problem. Won't print, unless you reboot it. Few pages later, blocks again.
On the HP drivers website, you can only download the latest firmware, how can I downgrade the firmware? I have other P1505n printers with the older firmware, but don't know how to download it from one of those.