Hello!

Here is cups error log. Maybe this information can help fix this problem..

Page 1 (Scheduler not running?):
{'cups_connection_failure': False}
Page 2 (Choose printer):
{'cups_dest': <cups.Dest MP150 (default)>,
 'cups_instance': None,
 'cups_queue': 'MP150',
 'cups_queue_listed': True}
Page 3 (Check printer sanity):
{'cups_device_uri_scheme': u'usb',
 'cups_printer_dict': {'device-uri': u'usb://Canon/MP150',
                       'printer-info': u'Canon MP150',
                       'printer-is-shared': True,
                       'printer-location': u'',
                       'printer-make-and-model': u'Canon PIXMA MP150 - CUPS+Gutenprint v5.2.0-rc1 Simplified',
                       'printer-state': 3,
                       'printer-state-message': u'/usr/lib/cups/filter/pstopdf failed',
                       'printer-state-reasons': [u'none'],
                       'printer-type': 45084,
                       'printer-uri-supported': u'ipp://localhost:631/printers/MP150'},
 'cups_printer_remote': False,
 'is_cups_class': False}
Page 4 (Check PPD sanity):
{'cups_printer_ppd_defaults': {u'C0L0': {u'StpInkType': u'CMYK'},
                               u'C1L0': {u'StpBrightness': u'None',
                                         u'StpColorCorrection': u'Uncorrected',
                                         u'StpContrast': u'None',
                                         u'StpImageType': u'TextGraphics',
                                         u'StpSaturation': u'None'},
                               u'General': {u'ColorModel': u'RGB',
                                            u'Duplex': u'None',
                                            u'InputSlot': u'SelectKey',
                                            u'MediaType': u'Plain',
                                            u'PageRegion': u'A4',
                                            u'PageSize': u'A4',
                                            u'Resolution': u'600dpi',
                                            u'StpQuality': u'None',
                                            u'StpiShrinkOutput': u'Shrink'}},
 'cups_printer_ppd_valid': True,
 'missing_pkgs_and_exes': ([], [])}
Page 5 (Local or remote?):
{'printer_is_remote': False}
Page 6 (Choose device):
{'cups_device_dict': {'device-class': u'direct',
                      'device-id': u'MFG:Canon;CMD:BJL,BJRaster3,BSCCe;SOJ:TXT01;MDL:MP150;CLS:PRINTER;DES:Canon MP150;VER:1.04;STA:10;HRI:OTH;',
                      'device-info': u'Canon MP150 USB #1',
                      'device-make-and-model': u'Canon MP150'}}
Page 7 (Printer state reasons):
{'printer-state-message': u'/usr/lib/cups/filter/pstopdf failed',
 'printer-state-reasons': [u'none']}
Page 8 (Error log checkpoint):
{'cups_server_settings': {'DefaultAuthType': 'Basic',
                          'MaxLogSize': '0',
                          'SystemGroup': 'lpadmin',
                          '_debug_logging': '1',
                          '_remote_admin': '0',
                          '_remote_any': '0',
                          '_remote_printers': '0',
                          '_share_printers': '0',
                          '_user_cancel_any': '0'},
 'error_log_checkpoint': 361520L}
Page 9 (Print test page):
{'test_page_job_status': [(True,
                           296,
                           'MP150',
                           '(stdin)',
                           '\xd0\x9e\xd1\x81\xd1\x82\xd0\xb0\xd0\xbd\xd0\xbe\xd0\xb2\xd0\xbb\xd0\xb5\xd0\xbd\xd0\xbe',
                           {'attributes-charset': u'utf-8',
                            'attributes-natural-language': u'ru-ua',
                            'copies': 1,
                            'document-format': u'application/postscript',
                            'finishings': 3,
                            'job-hold-until': u'no-hold',
                            'job-id': 296,
                            'job-k-octets': 5406,
                            'job-media-sheets-completed': 1,
                            'job-more-info': u'ipp://localhost:631/jobs/296',
                            'job-name': u'(stdin)',
                            'job-originating-host-name': u'localhost',
                            'job-originating-user-name': u'morya4ok',
                            'job-preserved': True,
                            'job-printer-state-message': u'/usr/lib/cups/filter/pstopdf failed',
                            'job-printer-state-reasons': [u'none'],
                            'job-printer-up-time': 1232737553,
                            'job-printer-uri': u'ipp://morya4ok-desktop:631/printers/MP150',
                            'job-priority': 50,
                            'job-sheets': [u'none', u'none'],
                            'job-state': 6,
                            'job-state-reasons': u'job-stopped',
                            'job-uri': u'ipp://localhost:631/jobs/296',
                            'job-uuid': u'urn:uuid:dd96118f-c0f1-3b2e-6505-97bf005470fa',
                            'media': u'A4',
                            'number-up': 1,
                            'printer-uri': u'ipp://localhost/printers/MP150',
                            'sides': u'one-sided',
                            'time-at-completed': None,
                            'time-at-creation': 1232737345,
                            'time-at-processing': 1232737345}),
                          (False,
                           297,
                           'MP150',
                           '(stdin)',
                           '\xd0\x9e\xd1\x81\xd1\x82\xd0\xb0\xd0\xbd\xd0\xbe\xd0\xb2\xd0\xbb\xd0\xb5\xd0\xbd\xd0\xbe',
                           None)],
 'test_page_successful': False}
Page 10 (Error log fetch):
{'error_log': ['D [23/Jan/2009:21:05:22 +0200] cupsdCloseClient: 13',
               'D [23/Jan/2009:21:05:22 +0200] cupsdAcceptClient: 13 from localhost (Domain)',
               'D [23/Jan/2009:21:05:22 +0200] cupsdReadClient: 13 POST / HTTP/1.1',
               'D [23/Jan/2009:21:05:22 +0200] cupsdAuthorize: No authentication data provided.',
               'D [23/Jan/2009:21:05:22 +0200] Get-Jobs ipp://localhost/jobs/',
               'D [23/Jan/2009:21:05:22 +0200] [Job 296] Loading attributes...',
               'D [23/Jan/2009:21:05:22 +0200] [Job 297] Loading attributes...',
               'D [23/Jan/2009:21:05:22 +0200] cupsdProcessIPPRequest: 13 status_code=0 (successful-ok)',
               'D [23/Jan/2009:21:05:22 +0200] cupsdCloseClient: 13',
               'D [23/Jan/2009:21:05:22 +0200] cupsdAcceptClient: 13 from localhost (Domain)',
               'D [23/Jan/2009:21:05:22 +0200] cupsdReadClient: 13 POST / HTTP/1.1',
               'D [23/Jan/2009:21:05:22 +0200] cupsdAuthorize: No authentication data provided.',
               'D [23/Jan/2009:21:05:22 +0200] Create-Printer-Subscription /',
               'D [23/Jan/2009:21:05:22 +0200] cupsdCreateSubscription(con=0xb9bc0bc8(13), uri="/")',
               'D [23/Jan/2009:21:05:22 +0200] pullmethod="ippget"',
               'D [23/Jan/2009:21:05:22 +0200] notify-lease-duration=86400',
               'D [23/Jan/2009:21:05:22 +0200] notify-time-interval=0',
               'D [23/Jan/2009:21:05:22 +0200] cupsdAddSubscription(mask=17800, dest=(nil)(), job=(nil)(0), uri="(null)")',
               'D [23/Jan/2009:21:05:22 +0200] Added subscription 59 for server',
               'I [23/Jan/2009:21:05:22 +0200] Saving subscriptions.conf...',
               'D [23/Jan/2009:21:05:22 +0200] cupsdProcessIPPRequest: 13 status_code=0 (successful-ok)',
               'D [23/Jan/2009:21:05:22 +0200] cupsdCloseClient: 13',
               'D [23/Jan/2009:21:05:23 +0200] cupsdAcceptClient: 13 from localhost (Domain)',
               'D [23/Jan/2009:21:05:23 +0200] cupsdReadClient: 13 POST / HTTP/1.1',
               'D [23/Jan/2009:21:05:23 +0200] cupsdAuthorize: No authentication data provided.',
               'D [23/Jan/2009:21:05:23 +0200] Get-Notifications /',
               'D [23/Jan/2009:21:05:23 +0200] cupsdIsAuthorized: requesting-user-name="morya4ok"',
               'D [23/Jan/2009:21:05:23 +0200] cupsdProcessIPPRequest: 13 status_code=0 (successful-ok)',
               'D [23/Jan/2009:21:05:23 +0200] cupsdCloseClient: 13',
               'D [23/Jan/2009:21:05:53 +0200] cupsdCloseClient: 12',
               'D [23/Jan/2009:21:05:53 +0200] cupsdAcceptClient: 12 from localhost (Domain)',
               'D [23/Jan/2009:21:05:53 +0200] cupsdReadClient: 12 POST / HTTP/1.1',
               'D [23/Jan/2009:21:05:53 +0200] cupsdAuthorize: No authentication data provided.',
               'D [23/Jan/2009:21:05:53 +0200] Get-Job-Attributes ipp://localhost/jobs/296',
               'D [23/Jan/2009:21:05:53 +0200] cupsdProcessIPPRequest: 12 status_code=0 (successful-ok)',
               'D [23/Jan/2009:21:05:53 +0200] cupsdCloseClient: 12',
               'D [23/Jan/2009:21:05:53 +0200] cupsdAcceptClient: 12 from localhost (Domain)',
               'D [23/Jan/2009:21:05:53 +0200] cupsdReadClient: 12 POST / HTTP/1.1',
               'D [23/Jan/2009:21:05:53 +0200] cupsdAuthorize: No authentication data provided.',
               'D [23/Jan/2009:21:05:53 +0200] Cancel-Subscription /',
               'D [23/Jan/2009:21:05:53 +0200] cupsdIsAuthorized: requesting-user-name="morya4ok"',
               'I [23/Jan/2009:21:05:53 +0200] Saving subscriptions.conf...',
               'D [23/Jan/2009:21:05:53 +0200] cupsdProcessIPPRequest: 12 status_code=0 (successful-ok)',
               'D [23/Jan/2009:21:05:53 +0200] cupsdCloseClient: 12',
               'D [23/Jan/2009:21:05:53 +0200] cupsdAcceptClient: 12 from localhost (Domain)',
               'D [23/Jan/2009:21:05:53 +0200] cupsdCloseClient: 11',
               'D [23/Jan/2009:21:05:53 +0200] cupsdReadClient: 12 GET /admin/log/error_log HTTP/1.1',
               'D [23/Jan/2009:21:05:53 +0200] cupsdAuthorize: No authentication data provided.']}