[GreenKeys] hooking an inkjet printer into a model 28 teletype

[Frank L]

> I was wondering if it would be possible to add a modern inkjet printer 
> into
> a teletype, so that
> you can print both teletype and graphics onto the same page. The idea 
> would
> be to take a compact portable inkjet, take it out of its case, and 
> mount
> somewhere in the paper feed, either before or after the teletype 
> printer
> has printed,  and somehow hook the linefeed mechanism so that it feeds 
> the
> paper when the inkjet printer has pushed out a few lines of paper.

Yes, line-feeding seems to be the most challenging part. I imagine a 
system like this would work in the following sequence: parses text and 
image elements from the source, puts them in two separate documents, 
does page layout for each document according to the content of the 
other, sends them to their respective output devices (teletype and 
inkjet). I have no idea which device's line-feeding mechanism is easier 
to control or more precise though.

> The driver software would be tricky though, probably have to write it 
> from
> scratch and
> I'm not sure that any of the inkjet printers have openly documented 
> control
> codes to allow you to control precisely when it stops and starts 
> printing.

I think you are right. Custom driver is needed to synchronizing these 
two. Maybe you can use the Gimp-Print driver source codes?

<http://gimp-print.sourceforge.net/>

Frank L