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The Clamp Power Control in Platen Mechanism

IP.com Disclosure Number: IPCOM000013516D
Original Publication Date: 2001-Aug-26
Included in the Prior Art Database: 2003-Jun-18
Document File: 3 page(s) / 60K

Publishing Venue

IBM

Abstract

This article describes the Method of Clamp Power Control in Platen Mechanism of impact dot passbook printer. The printer that equipped the head of an impact type, to carry out printing to many kinds of form, is being used in a bank.

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The Clamp Power Control in Platen Mechanism

This article describes the Method of Clamp Power Control in Platen Mechanism of impact dot passbook printer. The printer that equipped the head of an impact type, to carry out printing to many kinds of form, is being used in a bank.

And a platen mechanism that can move up and down, to absorb the difference of
the thickness at the page of a passbook is incorporated to this printer. When
a passbook is conveyed the platen mechanism is lowered. And it is raised as a
passbook is held firmly when letters are printed to a passbook. A passbook is
carrying out printing while maintaining the distance of the surface of paper
and print head regularly, by putting with the Platen, Bar-front and Bar-Rear.
The mechanism of the bassbook printer is shown in Figure- 1.

However, it is difficult to maintain distance regularly, because the thickness
differs by a page. Furthermore, because the layer that included air a lot in
the center of a thick page of a passbook is produced the platen needs to hold
a passbook with proper power. The method that this hold power is controlled by
the page information that was read from an optical line/page detector
that was attached to a passbook printer is proposed. This optical line/page
detector is carrying out the calculation of the position that a printer should
print, from the result that read the page and a line of a passbook. The
outline of Optical Line Finding/Optical Page Recognition (OLF/OPR) the system is shown...