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Browse Prior Art Database

TIMING BELT PLATEN DRIVE

IP.com Disclosure Number: IPCOM000024974D
Original Publication Date: 1983-Feb-28
Included in the Prior Art Database: 2004-Apr-04
Document File: 2 page(s) / 68K

Publishing Venue

Xerox Disclosure Journal

Abstract

A timing belt drive for incrementally rotating the platen of a printer provides a desirable alternative to the usual gear-train platen drive. It eliminates backlash inherent in gear trains and it provides a longer zone of driving engagement at .any one time. Timing belt platen drives heretofore in use have encircled the platen gear making it difficult to remove the platen for cleaning, replacement or substitution.

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:ROX I DISCLOSURE JOURNAL

TIMING BELT PLATEN DRIVE Henry E. Smith
James R. Wilson, Jr.

Proposed Classification US. Cl. 400/648
Int. Cl. B41j 11/02

A timing belt drive for incrementally rotating the platen of a printer provides a desirable alternative to the usual gear-train platen drive. It eliminates backlash inherent in gear trains and it provides a longer zone of driving engagement at .any one time. Timing belt platen drives heretofore in use have encircled the platen gear making it difficult to remove the platen for cleaning, replacement or substitution.

Volume 8 Number 1 January/February 1983 69

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TIh4ING BELT PLATEN DRIVE (Cont'd)

The present proposal, as illustrated, derives the positive benefits of the timing belt while allowing the platen to be readily removed. The platen gear 10, positioned at one end of the platen and coaxial therewith, is cradled by the timing belt 12 between idler pulleys 14 and 16 which are positioned to define the desired zone of driving engagement. It should be noted that the timing belt 12 is inverted from its normal orientation so that its teeth face outwardly. Driving force is imparted by driver pulley 18 which is maintained in engagement with timing belt 12, by belt tightener idler pulley 20. For a longer zone of engagement of the timing belt with the driver pulley an alternative arrangement, as shown in phantom lines, including wrap idler pulley 22, may be util...