I have posted on said mailing list and got as answer that the Canon Pixma ip1600 support did not actually work in 5.2.7 and therefore got removed in 5.2.8. So we do not have a regression, this printer has never worked under Ubuntu with only the included drivers.
You will have to use a Canon driver for this printer, but note that we cannot fix any bugs or incompatibilities in Canon's drivers. Please contact Canon in case of problems. ** Changed in: cups (Ubuntu) Status: Incomplete => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/957400 Title: Printer Canon Pixma iP1600 does not work To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cups/+bug/957400/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs