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✧✦Catherine✦✧ (whitequark@mastodon.social)'s status on Monday, 21-Jul-2025 05:01:37 JST ✧✦Catherine✦✧

dot matrix printer head cut in half (source: https://en.wikipedia.org/wiki/Dot_matrix_printing#/media/File:Tally_Genicom_T2240_print_head_assembly_-_cross_section.jpg)
In conversation about 5 months ago from mastodon.social permalink
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  Dot matrix printing
  
  Dot matrix printing, sometimes called impact matrix printing, is a computer printing process in which ink is applied to a surface using a relatively low-resolution dot matrix for layout. Dot matrix printers are a type of impact printer that prints using a fixed number of pins or wires and typically use a print head that moves back and forth or in an up-and-down motion on the page and prints by impact, striking an ink-soaked cloth ribbon against the paper. They were also known as serial dot matrix printers. Unlike typewriters or line printers that use a similar print mechanism, a dot matrix printer can print arbitrary patterns and not just specific characters. The perceived quality of dot matrix printers depends on the vertical and horizontal resolution and the ability of the printer to overlap adjacent dots. 9-pin and 24-pin are common; this specifies the number of pins in a specific vertically aligned space. With 24-pin printers, the horizontal movement can slightly overlap dots, producing visually superior output (near letter-quality or NLQ), usually at the cost of speed. Dot matrix printing is typically distinguished from non-impact methods...
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  ✧✦Catherine✦✧ (whitequark@mastodon.social)'s status on Monday, 21-Jul-2025 05:01:34 JST ✧✦Catherine✦✧
  in reply to
  - joshie 🏳️‍🌈
  @6a62 i have it yes
  
  In conversation about 5 months ago permalink
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  joshie 🏳️‍🌈 (6a62@raru.re)'s status on Monday, 21-Jul-2025 05:01:37 JST joshie 🏳️‍🌈
  in reply to
  
  @whitequark there's an entire book of electronics cut in half if that's your sort of thing https://opencircuitsbook.com
  In conversation about 5 months ago permalink
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    Open Circuits

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