File:Impact Print Elements.jpg
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DescriptionImpact Print Elements.jpg |
Print elements for IBM Selectric typewriter and for a Canon daisy wheel printer or typewriter. The IBM "golfball" print heads were also used by the IBM 2741 hard-copy data terminal. These were from the era of impact printers. For the daisywheel design, the wheel spins rapidly, and a single hammer strikes as the appropriate letter passes the hammer position. The selectric ball itself rotates and tilts to bring the desired symbol into position and then strikes the ribbon and paper. Both elements are very lightweight plastic, yet could withstand hours of deafening, table-shaking pounding while printing under computer control. The orator font is a large font you would have used before Power Point, to make a view graph for an old-school overhead projector. Note: This was taken outdoors, with the items sitting on one of those cheap white resin chairs. No other lighting or reflectors were uses. Makes a pretty good shadowless, distraction-free background for small items. |
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Date | |||
Source | Flickr: Impact Print Elements | ||
Author | Jamie Cox | ||
Permission (Reusing this file) |
This file is licensed under the Creative Commons Attribution 2.0 Generic license.
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Captions
Items portrayed in this file
depicts
3 October 2009
0.008 second
11
70 millimetre
400
623,074 byte
1,328 pixel
2,000 pixel
image/jpeg
ef695894beed1aa750b984ebb09050577c9846b4
File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 19:20, 27 February 2011 | 2,000 × 1,328 (608 KB) | Flickr upload bot | Uploaded from http://flickr.com/photo/15587432@N02/3981088781 using Flickr upload bot |
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Metadata
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Image title | KONICA MINOLTA DIGITAL CAMERA |
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Camera manufacturer | KONICA MINOLTA |
Camera model | MAXXUM 5D |
Exposure time | 1/125 sec (0.008) |
F-number | f/11 |
ISO speed rating | 400 |
Date and time of data generation | 16:31, 3 October 2009 |
Lens focal length | 70 mm |
Orientation | Normal |
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Software used | MAXXUM 5D v1.00 |
File change date and time | 16:31, 3 October 2009 |
Exposure Program | Aperture priority |
Exif version | 2.21 |
Date and time of digitizing | 16:31, 3 October 2009 |
APEX brightness | 5.75 |
Exposure bias | 0 |
Maximum land aperture | 4.97 APEX (f/5.6) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash fired, compulsory flash firing |
Subject location | 0 |
Color space | sRGB |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 0 |
Focal length in 35 mm film | 105 mm |
Scene capture type | Standard |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |