I had to delete a iprint printer which has been migrated by iPrint with
wrong name (special characters).

Deleting the printer itself has been successful, but the iprint print
manager has this printer in it's agent list. And there I can not delete
the printer. If I try, I get the following error message:

Request (CLIENT_ERROR) - bad status code (0x406)
IPP Error: 0x406

Problem is, that this printer is listed on the IPP web page, so users
might try to install this printer.

Is there a way to remove the printer from the print manager's agent
list, or at least from the web page?

Thanks in advance,