HP Forum Archive 15

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Technical manual for 82240B Message #1 Posted by inaki on 23 Nov 2005, 5:44 p.m. Is there any technical manual for the 82240B printer ? I mean, about commands, IR signal format, etc.

Re: Technical manual for 82240B Message #2 Posted by James M. Prange (Michigan) on 23 Nov 2005, 6:20 p.m., in response to message #1 by inaki Maybe the HP82240B Technical Interfacing Guide PDF is what you're looking for? Other than that, a scan of the owner's manual is on the MoHPC CD set/DVD. Regards, James

Re: Technical manual for 82240B Message #3 Posted by tomcee on 28 Nov 2005, 2:06 p.m., in response to message #2 by James M. Prange (Michigan) Are there schematics/internal pics/pcb layouts available? It seems I had seen some at one time, but can't find them now. TomC

Re: Technical manual for 82240B Message #4 Posted by tomc on 29 Nov 2005, 5:07 p.m., in response to message #3 by tomcee Also, there was a detailed article in the HP Journal which is on the Museum disks. It may be available online here too. TomC

Re: Technical manual for 82240B Message #5 Posted by Tony Duell on 30 Nov 2005, 3:43 p.m., in response to message #3 by tomcee There should be reverse-engineered schematics for both the 82240A and 82240B on the HPCC CD-ROM. They're pretty simple inside, an 8048 microcontroller, the IR receiver chip, and a driver chip for the printhead/motor. From what I remember, if you want to take one apart, there are 2 case screws (4 under the feet, 2 in the battery compartment).

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