HP-41 instruction print bug found

[Ken S]

(11-04-2019 05:17 AM)Monte Dalrymple Wrote:  

(11-04-2019 04:32 AM)hth Wrote:  Is it possible to alter the HP-IL module image on the 41CL somehow?

Physical images plugged into the 41CL always take precedence. So the only way to "patch" the physical HP-IL ROM would be to physically disable (ie remove) the ROM in the HP-IL module and then "PLUG" in a patched version in the 41CL.

Couldn't you use the switch on the IL module to disable the printer and then load the patched rom? The reason for the switch was so you could plug in another printer while the module was in place without conflict. I thought the switch just disabled the power to the internal IL print Rom. Not sure if this would work but worth a shot.