[TriLUG] CUPS Printing Issue

[Bill Farrow via TriLUG]

On Mon, Jan 22, 2018 at 1:01 PM, Brian Grawburg via TriLUG
<trilug at trilug.org> wrote:
> At the museum I work for the Point Of Sale system runs on Debian Stretch (thanks to me) and runs in the browser.
> Attached to the system is a receipt printer (Citizen CT-S300) with a Linux driver.
> I can print one receipt and then no more UNLESS I turn the printer off, unplugged the USB and turn the printer back on.

Sounds like CUPS is not completing the first print operation and
refuses to send more data to the printer until it is "finished". What
version of CUPS are you using ?

Maybe this is a USB driver issue ? Try blacklisting "usblp" driver
module... and plug the printer back in.
  echo "blacklist usblp" > /etc/modprobe.d/blacklist-usblp.conf
  rmmod usblp



Bill