Is it possible to reflash the printer?

Question

Printers

Is it possible to reflash the printer so that the finished printout comes out from the back of the printer?
(We are talking about a canon cp510 photo printer)
Physically, this is possible, as the printer drives the workpiece back and forth several times.

Answer 1

ahahaha bugagaga, you can flash it, will you write the firmware yourself?

Answer 2

Yes, it's possible.
You need to get the firmware file (if it is not on the offsite site, then dump it from the printer), decompile it, add the necessary functionality, assemble the firmware and flash the printer.