Ghost printer that I can't remove

[peteruithoven]

I have this extra, always disabled, printer in my list. It's not listed on http://127.0.0.1:631/printers/

It's not always included in the list for some reason.
It is always disabled and toggling disabled doesn't work.

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[peteruithoven]

I've added some logs in the PrinterManager:

** (io.elementary.switchboard:12032): DEBUG: 17:27:01.157: PrinterManager.vala:125: add_printer
** (io.elementary.switchboard:12032): DEBUG: 17:27:01.157: PrinterManager.vala:126:   destination.name: Canon_MG5500_series
** (io.elementary.switchboard:12032): DEBUG: 17:27:01.157: PrinterManager.vala:127:   destination.instance: (null)
** (io.elementary.switchboard:12032): DEBUG: 17:27:01.158: PrinterManager.vala:125: add_printer
** (io.elementary.switchboard:12032): DEBUG: 17:27:01.158: PrinterManager.vala:126:   destination.name: HLL2340D
** (io.elementary.switchboard:12032): DEBUG: 17:27:01.158: PrinterManager.vala:127:   destination.instance: (null)
** (io.elementary.switchboard:12032): DEBUG: 17:27:01.159: PrinterManager.vala:125: add_printer
** (io.elementary.switchboard:12032): DEBUG: 17:27:01.159: PrinterManager.vala:126:   destination.name: MG5500
** (io.elementary.switchboard:12032): DEBUG: 17:27:01.159: PrinterManager.vala:127:   destination.instance: (null)

A other example, where for some reason this Canon_MG5500_series wasn't included in the list:

** (io.elementary.switchboard:10913): DEBUG: 17:26:41.011: PrinterManager.vala:125: add_printer
** (io.elementary.switchboard:10913): DEBUG: 17:26:41.011: PrinterManager.vala:126:   destination.name: HLL2340D
** (io.elementary.switchboard:10913): DEBUG: 17:26:41.012: PrinterManager.vala:127:   destination.instance: (null)
** (io.elementary.switchboard:10913): DEBUG: 17:26:41.012: PrinterManager.vala:125: add_printer
** (io.elementary.switchboard:10913): DEBUG: 17:26:41.012: PrinterManager.vala:126:   destination.name: MG5500
** (io.elementary.switchboard:10913): DEBUG: 17:26:41.012: PrinterManager.vala:127:   destination.instance: (null)

[peteruithoven]

It looks like the printer will never appear when the printer is turned off. It will usually appear when it is turned on.

[peteruithoven]

When I try to remove the printer there is no error. But it doesn't disappear from the list. The printer_deleted signal in the PrinterManager isn't called.

[jeremypw]

#159 Should fix the printer not disappearing from the list if removed (fixes signals from the CUPS Notifier). Not yet released though.