Print point reposition feature for an electronic typewriter

Details Print point reposition feature for an electronic typewriter Print point reposition feature for an electronic typewriter

1978-05-22

1981-02-24

Wright, Jr., Ernest T.

Typewriting machines

Control of print position along print-line by signal...

400290, 400306, 400309, 400320, 4006971, B41J 530

Patent

active

042524512

ABSTRACT:
On electronic typewriters which have the ability to record into a small working memory the escapement of the characters which are keyed at the keyboard, it is many times advantageous to be able to reposition the carrier at the rightmost end of the typed material automatically. This is particularly advantageous when it has been necessary to back the carrier up along the printed line for purposes of erasing, correcting or inserting material into that line. Disclosed herein is an electronic typewriter which is controlled by the electronic logic such that the depression of a selected control key will result in the carrier moving from a position within the typed text on a particular line to the right most position the carrier has occupied within that line during earlier typing.
This is accomplished by temporarily storing the rightmost carrier position as recorded in the escapement register into a working memory and then upon the appropriate command from the keyboard, using that location in the manner that a tab stop location would be used and creating a tab like command movement to cause the carrier to go directly to that point and stop.

REFERENCES:
patent: 3750797 (1973-08-01), Hunt et al.
patent: 3780846 (1973-12-01), Kolpek et al.

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