Mac Allen Mathis

US Patent:

49573802, Sep 18, 1990

Filed:

Mar 14, 1988

Appl. No.:

7/167810

Inventors:

Patrick J. Gerstle - Nicholasville KY
Mac A. Mathis - Austin TX
David R. Smith - Lexington KY
Kathryn R. Stilz - Lexington KY

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

B41J 2117

US Classification:

400279

Abstract:

A typewriter may store a document in a first format with margins and tab stop locations defined for a first format and then the operator may change the margin or tabs to a second format. The operator may also select whether the tab stop locations may be played out with the same relative positioning to the left margin or be played out using the newly set tabs and margin setting. The newly set tab stop locations are defined as a fixed position relative to the print line and are independent of the left margin position or the position of the original tab stop location relative to the left margin. The memory of the typewriter may be optionally updated when the document is played out using the second format tab stop locations, if the operator conditions the storage to accept changes during playout. Alternatively, the document may be played out using the second format tab stop locations, and the original format tab stop locations are maintained for future use.