Jump to content

File:Impact Print Elements.jpg

Page contents not supported in other languages.
This is a file from the Wikimedia Commons
From Wikipedia, the free encyclopedia

Original file (2,000 × 1,328 pixels, file size: 608 KB, MIME type: image/jpeg)

Description

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.
Date
Source Flickr: Impact Print Elements
Author Jamie Cox
Permission
(Reusing this file)
This image, which was originally posted to Flickr, was uploaded to Commons using Flickr upload bot on 27 February 2011, 19:19 by ArnoldReinhold. On that date, it was confirmed to be licensed under the terms of the license indicated.
w:en:Creative Commons
attribution
This file is licensed under the Creative Commons Attribution 2.0 Generic license.
You are free:
  • to share – to copy, distribute and transmit the work
  • to remix – to adapt the work
Under the following conditions:
  • attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.

Captions

Add a one-line explanation of what this file represents

Items portrayed in this file

depicts

inception

3 October 2009

exposure time

0.008 second

focal length

70 millimetre

data size

623,074 byte

height

1,328 pixel

width

2,000 pixel

media type

image/jpeg

checksum

ef695894beed1aa750b984ebb09050577c9846b4

determination method or standard: SHA-1

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current19:20, 27 February 2011Thumbnail for version as of 19:20, 27 February 20112,000 × 1,328 (608 KB)Flickr upload botUploaded from http://flickr.com/photo/15587432@N02/3981088781 using Flickr upload bot

The following page uses this file:

Metadata

This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.

If the file has been modified from its original state, some details may not fully reflect the modified file.

Retrieved from "http://en.wiki.x.io/wiki/File:Impact_Print_Elements.jpg"