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Browse Prior Art Database

Variable Resilience Platen

IP.com Disclosure Number: IPCOM000092611D
Original Publication Date: 1966-Dec-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 29K

Publishing Venue

IBM

Related People

Darling, RH: AUTHOR

Abstract

The variable resilience platen is for a front printer required to print multipart forms. This platen is provided to solve the problems which exist due to the variation in the number of copies to be printed. One problem is the adjustment of the distance from the print element to the platen to allow for the additional form thickness since the travel of the print element is limited. Another problem is the requirement for selecting the proper platen resilience to conform to the number of copies being printed. To print single-part forms 18 with the same print elements, the platen should be softer to absorb the excess energy. For a large number of forms 20, the platen should be less resilient.

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Variable Resilience Platen

The variable resilience platen is for a front printer required to print multipart forms. This platen is provided to solve the problems which exist due to the variation in the number of copies to be printed. One problem is the adjustment of the distance from the print element to the platen to allow for the additional form thickness since the travel of the print element is limited. Another problem is the requirement for selecting the proper platen resilience to conform to the number of copies being printed. To print single-part forms 18 with the same print elements, the platen should be softer to absorb the excess energy. For a large number of forms 20, the platen should be less resilient. Platen 10 has circular inner core 12 constructed of a hard material and an eccentric-shaped outer portion 14 of a softer material bonded over center portion 12. Thus, by positioning the platen to a radial position determined by the number of copies to be printed, the distance 16 from the center of rotation of platen 10 to the surface of the form remains substantially constant.

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