CUPS - Can't detect file type

[Bengt Frost]

Description: Ubuntu Artful Aardvark (development branch)
Release: 17.10
Kernel Linux 4.12.0-13-generic x86_64

Can't detect file type when using CUPS with Canon MG5700-series drivers (driverless and cups-gutenprint) - when printing.

[Bengt Frost (bengtfrost)]

Page 1 (<troubleshoot.SchedulerNotRunning.SchedulerNotRunning object at 0x7f616206ceb8>):
{'cups_connection_failure': False}
Page 2 (<troubleshoot.ChoosePrinter.ChoosePrinter object at 0x7f61620772e8>):
{'cups_dest': <cups.Dest Canon_MG5700_series (default)>,
 'cups_instance': None,
 'cups_queue': 'Canon_MG5700_series',
 'cups_queue_listed': True}
Page 3 (<troubleshoot.CheckPrinterSanity.CheckPrinterSanity object at 0x7f616206ce48>):
{'cups_device_uri_scheme': 'ipp',
 'cups_printer_dict': {'device-uri': 'ipp://07262C000000.local:631/ipp/print',
                       'printer-info': 'Canon MG5700 series',
                       'printer-is-shared': False,
                       'printer-location': 'Local Printer',
                       'printer-make-and-model': 'Canon MG5700 series, '
                                                 'driverless, cups-filters '
                                                 '1.17.5',
                       'printer-state': 3,
                       'printer-state-message': "Can't detect file type",
                       'printer-state-reasons': ['none'],
                       'printer-type': 2232412,
                       'printer-uri-supported': 'ipp://localhost/printers/Canon_MG5700_series'},
 'cups_printer_remote': False,
 'is_cups_class': False,
 'local_cups_queue_attributes': {'charset-configured': 'utf-8',
                                 'charset-supported': ['us-ascii', 'utf-8'],
                                 'color-supported': True,
                                 'compression-supported': ['none', 'gzip'],
                                 'copies-default': 1,
                                 'copies-supported': (1, 9999),
                                 'cups-browsed-default': True,
                                 'cups-version': '2.2.4',
                                 'device-uri': 'ipp://07262C000000.local:631/ipp/print',
                                 'document-format-default': 'application/octet-stream',
                                 'document-format-supported': ['application/octet-stream',
                                                               'application/pdf',
                                                               'application/postscript',
                                                               'application/vnd.adobe-reader-postscript',
                                                               'application/vnd.cups-pdf',
                                                               'application/vnd.cups-pdf-banner',
                                                               'application/vnd.cups-postscript',
                                                               'application/vnd.cups-raster',
                                                               'application/vnd.cups-raw',
                                                               'application/x-cshell',
                                                               'application/x-csource',
                                                               'application/x-perl',
                                                               'application/x-shell',
              ...

[Bengt Frost (bengtfrost)]

After newly updated packages, fixed.