On 28/08/2026 02:30, dn via Python-list wrote:
Rob,
On 28/08/2026 00:08, Rob Cliffe via Python-list wrote:
I have a Windows 11 laptop and an Epson WF-4820 printer.
Is there any way I can programmatically print two files, one on each
side of the same sheet of paper?
The following program doesn't quite work (Python 3.13.3):
How long are these files?
In my tests, 1 line long each. 🙂
In the ?good, old, days (before duplex printers became
available/cheap) we would print the even-numbered pages on the
'bottom' of each sheet with page-numbering forwards, take the output
stack and (carefully oriented) place it back in the input cartridge;
then print the 'odd' pages on the 'top' of each sheet.
In your case, print the shorter file, over-turn, and print the other.
However...
if any page is messed-up for some reason, eg two sheets fail to
separate; things become confusing very quickly. So, learned to use
this trick in short-runs.
OTOH much more fun to find a programmatic solution!
Indeed. But I'll just turn the paper over and feed it back in.
Best,
Rob
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