Drum-type line-printer print head

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  • Description
Date Introduced
1960 ca.
Photographer
Richards, Mark
Dimensions
overall: 6 in x 27 in x 6 in
Manufacturer
Radio Corporation of America (RCA)
Copyright Owner
© Mark Richards
Location
United States
Keywords
Output; Hammer
Object ID
102630084

Hammers pushed paper and inked ribbon onto the appropriate characters as they came around on the constantly rotating drum. Drum printers produced 600 or more lines per minute, but vertical alignment, to which the eye is sensitive, was sometimes uneven.