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Rotate Homing at Print Element

IP.com Disclosure Number: IPCOM000078950D
Original Publication Date: 1973-Apr-01
Included in the Prior Art Database: 2005-Feb-26
Document File: 2 page(s) / 27K

Publishing Venue

IBM

Related People

Boyatt, RG: AUTHOR [+3]

Abstract

A capability for homing the printhead of a single-element typewriter, without the adjustment of an extensible link, is illustrated. Rotate shaft 10 is connected through pin 12 and slot 14, slot 16 and pin 18 to the upper ball socket 20. Engaged between upper ball socket 20 and retaining screw 22 is washer 24 with key 26 formed integrally therewith. Type typehead element 28 may be positioned over retaining screw 22 and spring arms of the latching mechanism, not shown, of the type element 28 engage the groove 27 in screw 22.

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Rotate Homing at Print Element

A capability for homing the printhead of a single-element typewriter, without the adjustment of an extensible link, is illustrated. Rotate shaft 10 is connected through pin 12 and slot 14, slot 16 and pin 18 to the upper ball socket 20. Engaged between upper ball socket 20 and retaining screw 22 is washer 24 with key 26 formed integrally therewith. Type typehead element 28 may be positioned over retaining screw 22 and spring arms of the latching mechanism, not shown, of the type element 28 engage the groove 27 in screw 22.

To home the type element, the lever 30 on type element 28 is lifted and a screwdriver inserted into the slot 32 of screw 22. The screw 22 is loosened and the typehead 28 rotated to its proper position, thus rotating washer 24 by the engagement of key 26 in an internal slot or keyway, not shown, within the center of typehead 28.

Upon the proper positioning of typehead 28, screw 22 is again retightened and the lever 30 depressed on typehead 28, completing the homing operation.

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