HP: "68.1 Permanent Storage Full"
Me: Wonders why the printer is trying to permanently store things
Me: Recovers
Me: Clicks okay
HP: "68.0 Permanent Storage Write Failure"
Me: Wonders why the printer is trying to write to somewhere it knows is full
Me: Recovers
Me: Clicks okay
HP: "unknown.c, LINE = 0"
Me: Wonders whether HP actually put a unknown.c file in the firmware that causes errors in line 0 in this circumstance or if the printer is displaying the default message that occurs when the printer has no idea what just happened
Me: Decides it's the latter
Me: Reboots
Me: Repeat