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Print Direction Determination for Optimal Throughput in Bidirectional Printers

IP.com Disclosure Number: IPCOM000034392D
Original Publication Date: 1989-Feb-01
Included in the Prior Art Database: 2005-Jan-27

Publishing Venue


Related People

Hoang, CM [+details]


Disclosed is a software method to determine the print direction which requires minimum time to finish a print cycle in bidirectional printer. As soon as the control software obtains the beginning position BP and the ending position EP of a print line, it must determine the print direction of this print line. Incorrect decision may cause some extra carrier movement, therefore, reducing the overall throughput of the printer. The method described below assists the control software to make a correct decision. First, the control software calculates the middle position MP of the print line using the following formula: MP = (EP - BP) / 2 Second, the control software obtains the present status of the carrier. At any one point, the carrier status is either idle, moving for a non-print move, or moving for a print move.