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Printing at Nonlinear Velocity

IP.com Disclosure Number: IPCOM000089793D
Original Publication Date: 1977-Dec-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 29K

Publishing Venue

IBM

Related People

Perry, FJ: AUTHOR

Abstract

This asynchronous technique permits lower rates of acceleration of the traversing mechanism and hence lower values of "g" forces.

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Printing at Nonlinear Velocity

This asynchronous technique permits lower rates of acceleration of the traversing mechanism and hence lower values of "g" forces.

Prior ink drop printing apparatus is operated at high acceleration rates (t(1) - t(2)) to reach a velocity plateau (t(2) - t(3)) at which printing takes place. The cost in time and component configuration of the traversing mechanism for maintaining precise constant velocity between the times t(2) and t(3) is high.

By operating over a nonconstant velocity profile, for example, an equilateral triangular profile, as shown, the acceleration rates are reduced for the same application using a constant velocity profile, as shown. The costly requirement for maintaining constant velocity is eliminated.

This technique affords higher printing line rates without increasing the "g" force required. Hence, higher outputs are available at the same cost as for conventional apparatus.

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