Specifically, can I print one side of a sheet, mark it up with a standard Bic pen, and put it back in the printer to print the other side?

  • 2
    The ink itself won't harm anything, but it probably will indent the page and not fuse properly in that area, or could cause paper jams depending on where you are marking.
    – Jonno
    Mar 19, 2016 at 18:27
  • 1
    you get ball point on my drums, rollers and fuser roller, I am not going to let you use my printer again :-) I might let you use a fine point permenent marker after it dries, if I could determine your reasons for doing that was valid enough to begin with.
    – Psycogeek
    Mar 20, 2016 at 4:26
  • @Psycogeek: Yeah, I guess I'll just reprint the recto, print the verso, and copy my annotations over by hand.
    – Mathieu K.
    Mar 20, 2016 at 6:15

1 Answer 1


Paper re-inserted into a laser printer is more likely to cause jams. This gets worse the more the paper is handled, bent, crumpled at the edges, etc. It gets worse in high-humidity situations. So that's a certain reason not to do it. An uncertain reason : Laser printers rely on a very high-temperature fuser, which the pen ink wasn't designed to handle. It's likely that the pen ink will partially burn or evaporate, making a smear on your fuser, and possibly staining every printout after that. Source : Have worked in a toner refill factory.

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