Recorders – Record receivers and/or driving means therefor – Drum
Patent
1991-04-29
1992-06-09
Fuller, Benjamin R.
Recorders
Record receivers and/or driving means therefor
Drum
346 25, 346140R, 346134, G01D 1524
Patent
active
051211394
ABSTRACT:
A compact ink jet printer is described utilizing a small drum for carrying a sheet of record medium during the printing operation. In one embodiment, the drum has an exterior surface with a high coefficient of friction with a contact roller retaining the record medium against the drum as the drum is rotated. Printing is accomplished as by jetting ink from an ink jet print head onto the medium while the medium is backed up by a fixed platen. A fusing mechanism may be utilized to flatten ink drops on the printed medium. A drive mechanism for an ink jet printer may include a stepper motor coupled by timing belt sprockets and a timing belt to the drum of the printer. These components may be selected such that the drum is incremented a multiple of a pixel height during each step of the stepper motor. The record medium may also be clamped to a drum by a clamping mechanism and rotated through plural revolutions of the drum during respective printing and fusing steps.
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Anderson Edward B.
Bobb Alrick
Fuller Benjamin R.
Tektronix Inc.
Winkelman John D.
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