| device: | Canon
DR-2050C Dosadi does not sell or provide end-user support for this device, and we are not affiliated with its manufacturer. |
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| comments: | The
smallest footprint desktop ADF scanner, fast & quiet, with one
of the best TWAIN drivers around. Replaces the discontinued DR-2080C. Technical specifications. Color, 600 dpi, 50 page ADF, single-pass duplex. Notably light: 5lbs The physical 30 x 10cm footprint is somewhat misleading: A clear area is required in front of the unit for ejected documents - there is no output tray. Because of the relatively tight turn in the paper path, this is not a good device for scanning photos or cardstock. |
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| known issues: | The 'Scan Panel' is a source of frustration to many of our customers, forcing itself onto the screen or flickering in the system tray. We recommend you contact us before committing to this scanner, to be sure that the scan panel will not defeat your intended usage scenario. | |
| TWAIN features: | The
2050 ships with a TWAIN driver that seems very similar to that of
the DR-2080C: Generally competent and robust, having a plain and densely
functional UI, and bare-bones TWAIN capabilities with a few quirks.
The following custom capabilities are for the 2080C, at this time
we believe this information applies equally to the 2050C: Custom Capabilities 0x8000 selects Paper size Auto-detection. (INT32) Set to 1 to enable, 0 for fixed size scans. 0x8001 selects 'Skip Blank Pages' mode. (INT32) Set to 1 to enable. Apparently selects duplex mode too. 0x8002 [we believe:] percent of black pixels times 2, required for a page to be considered 'non blank'. (INT32) 0x8004 Delay, for Automatic Feeding. (INT32) seconds. 0x8006 -unknown- 0x8007 -unknown- 0x8008 selects front drop-out color: (INT32) 0=none, 1=red, 2=green, 3=blue. 0x8009 Edge emphasis (INT32) 1..5: 1=softest, 2=softer, 3=none, 4=sharper, 5=sharpest. ______ Note: 0x8011 must be set to 1 before 0x8009 can be set. 0x800B -unknown- 0x800C -unknown- 0x800D selects automatic Deskew. (INT32) Set to 1 to enable. 0x800E 'Reverse Side' - in Simplex mode, the back of the page is scanned. Set to (INT32) 1 to enable. 0x800F -unknown- 0x8011 Enable Edge Emphasis filter (0x8009). (INT32) 1=on, 0=off. See 0x8009. 0x8012 -unknown- 0x8013 -unknown- 0x8014 -unknown- 0x8015 -unknown- 0x8016 'Scan Panel' mode? (Applies only in 'Panel Feeding' mode) (INT32) (we hate that panel) ______ Our guess: 0 = hide the scan panel. 2 = show always, 1 = show when scanning. 0x8017 ? (INT32) 3=Prescan is locked 'on'. 2,1=Prescan is selectable; 0=Prescan is locked 'off'. 0x8018 Prescan. (INT32) 1=on, 0=off 0x8019 -unknown- 0x801A -unknown- 0x8025 Automatic Border Removal. Set to (INT32) 2 to enable, 0 to disable. ______ Caution: Seems to only work in Native transfer mode, not Memory! Ouch. 0x8026 -unknown- 0x8028 -unknown- 0x8029 Text Enhanced - modifies PixelType=TWPT_BW: (INT32) 0=normal, 1=Text Enhanced 0x802A -unknown- 0x802B -unknown- 0x802D -unknown- 0x802E -unknown- 0x8031 Same as 0x8000 0x8032 -unknown- 0x8033 Modifies Gray/Color => Smoothing Gray/Smoothing Color (INT32) 1='smoothing' mode 0x8034 ? (INT32) 0 is normal, -1 and +1 disable all the controls in the main scan dialog. 0x8035 Counts 'sides' scanned. (INT32) Reset to 0 when device is opened. App can set or reset. 0x8036 Counts pages scanned. Otherwise like x8035 above. 0x8037 Folio mode (INT32) 0=normal (off), 1=scan and stitch folded page 0x8063 -unknown- 0x8100 -unknown- |
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