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Looking for help: Capture printer data on parallel port
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nfrancoe:
Hello Bicurico.

Have you a final conclusion about this?  I have the exact same needs.

I want to "print" the screen of my TDS 210 (Tektronix Ocsilloscope) on computer (create a file on) via RS-232 or via Parallel port.
I know that someone will tell me to use the Tektronix download tool... but NO WAY.  Proposed Tektronix software are sooo bad.

My TDS 210 Format options:
DPU411, DPU412,ThinkJet, DeskJet, LaserJet, Epson, BMP, PCX, EPSIMAGE, INTERLEAF.

Best regards,
nfrancoe
tooki:
EPSIMAGE sounds like it’s probably EPS (encapsulated PostScript) output, which could potentially be converted to vector art, if it’s the graphics you’re after.
jmelson:

--- Quote from: Bicurico on January 08, 2018, 10:59:43 pm ---What I need is to interface the LPT output of a test equipment, so that I can redirect it back to a PC, where I grab the data.

--- End quote ---
It is fairly likely you could connect the instrument to a PC parallel port with the port selected to input mode, and the strobe pin wired to one of the status input pins.
You'd need to write a small program to detect pulses on the device's strobe pin and read in a byte from the data port.  Most devices like this only use a couple pins
other than the data port and strobe, and don't use too many status pins (like paper out, on line, etc.) or you can just hardwire those status inputs as the device needs.

Jon
Gribo:
I have done exactly as the OP required with an Arduino Nano Every and a custom board for the DB25 connector. I can share the code, it is pretty trivial.
Edit: Attached is the Arduino source. change name to .ino
RWAP:

--- Quote from: nfrancoe on February 11, 2020, 09:27:19 pm ---Hello Bicurico.

Have you a final conclusion about this?  I have the exact same needs.

I want to "print" the screen of my TDS 210 (Tektronix Ocsilloscope) on computer (create a file on) via RS-232 or via Parallel port.
I know that someone will tell me to use the Tektronix download tool... but NO WAY.  Proposed Tektronix software are sooo bad.

My TDS 210 Format options:
DPU411, DPU412,ThinkJet, DeskJet, LaserJet, Epson, BMP, PCX, EPSIMAGE, INTERLEAF.

Best regards,
nfrancoe

--- End quote ---

The Retro-Printer can be connected to the parallel post and capture the Epson printout (or even the HP Deskjet) to convert to PDF - www.retroprinter.com
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