Inventors:
John P. Bolash - Lexington KY
Edmund H. James - Lexington KY
Randall D. Mayo - Georgetown KY
Richard G. Zumbach - Davidson NC
Assignee:
Lexmark International, Inc. - Greenwich CT
International Classification:
B41J 207
Abstract:
In a printer having P+X printing elements for printing pixels with a vertical center-to-center spacing R. sub. 1 during a plurality of line scans, and a stepper motor for moving a record medium in increments R. sub. 2 where R. sub. 2 is greater than R. sub. 1, all points addressable printing is obtained by a combination of movement of the record medium orthogonal to the line scan direction and shifting address signals applied to the print elements. The stepper motor moves the record medium a distance k. sub. 2 R. sub. 2 between successive line scans and address signals are applied to (n+k. sub. 1)th. . . (n+k. sub. 1 +P-1)th print elements to cause a shift k. sub. 1 R. sub. 1 such that the sum of the distance the record medium is moved before a line scan and the shift caused by the address signals during a scan is equal to PR. sub. 1 where P is the number of print elements active during the preceding line scan, or equal to any desired integral multiple of R. sub. 1 in other print modes.
