Incremental printing of symbolic information – Electric marking apparatus or processes – By electrochemical
Patent
1994-04-18
1996-02-27
Fuller, Benjamin R.
Incremental printing of symbolic information
Electric marking apparatus or processes
By electrochemical
347153, H04N 112
Patent
active
054952760
ABSTRACT:
There is provided an arrangement within an electrophotographic printer that helps reduce deformation in the media by ensuring that the media remains under a constant tension. The arrangement uses a first roller for moving the media through the electrophotographic printer at a given linear velocity. A second roller, placed after the first roller, also moves the media through the electrophotographic printer. However, the second roller has a variable linear velocity, where the variable linear velocity having a maximum linear velocity that is greater than the first roller's linear velocity. Power is applied to the second roller through a clutch. When the maximum amount of power is being applied to the second roller, the clutch limits the variable linear velocity to that of the first roller's linear velocity. Thus, the clutch limits the variable velocity when the media is under a known tension, wherein the known tension is constant in the media while the media moves through the electrophotographic printer.
REFERENCES:
patent: 4307408 (1981-12-01), Kiyohara et al.
Huffman John W.
Mul Paul K.
Baca Anthony J.
Fuller Benjamin R.
Gordon Raquel Yvette
Hewlett--Packard Company
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