What each release actually fixes, how to install it without bricking the device, and what to do when the panel goes dark halfway through. Notes from our own service calls, not marketing copy.
Most firmware disasters we are called out to fix come from skipping one of these.
Print a configuration page. It has the current version, the IP and the counters. Without it you cannot tell whether the update ran, and you cannot ask anyone sensibly for help.
A printer writing its boot block and losing power needs a service visit. No shared switch, no timer socket, nobody about to unplug the “spare” cable under the desk.
Pause the queue and let jobs finish. Documents sent during a flash are dropped without a word, and that is how a payroll run disappears.
Each page covers one device: what the current release changes, three ways to install it, and the quirks that only show up on that model.
Mono laser, A4, network
firmware 002.2537A · 2026-04-18Mono laser, A4, Wi-Fi
firmware 1.62 · 2026-03-02Colour inkjet MFP, A4, Wi-Fi
firmware JN13K5 · 2026-05-21Mono laser MFP, A4, network
firmware 12.09 · 2026-02-11Mono laser, A4, network
firmware 2S9_1000.006.005 · 2026-01-27Colour laser MFP, A4, network
firmware 73.66.21 · 2026-06-09We document procedures. Download firmware from the manufacturer, never from a third party.
Tell us the model and what the panel says. We answer firmware questions even for devices that are not on a PrintDoc contract.