Typewriting machines – Carriage or carriage-moving or movement-regulating mechanism – Carriage-return mechanism
Patent
1990-09-06
1992-05-26
Wiecking, David A.
Typewriting machines
Carriage or carriage-moving or movement-regulating mechanism
Carriage-return mechanism
400279, B41J 1994
Patent
active
051161494
ABSTRACT:
A printer comprises a sheet feeding device for starting to feed a printing sheet to the position of the next line immediately after data of one line is completely printed and deceleration of a carriage from a predetermined printing speed is started, a control table preparing device for storing drive control information for the next line in a control table as soon as the data of the one line is completely printed and deceleration of the carriage from the printing speed is started, a first computing device for computing a first period of time required from the completion of printing of the data of the one line until the carriage starts its movement from its stopped state in the direction opposite to the direction of movement of the carriage during printing the data of the one line and reaches a printing enable speed so that data of the next line can be printed, a second computing device for computing, from the time the carriage is stopped, and a second period of time required until the operation of the sheet feeding device is completed, the second computing device continuing to compute the second period of time whenever the carriage is stopped, and a control device comparing the second period of time with the first period of time whenever the carriage is stopped and starting the acceleration of the carriage each time the second period of time becomes less than the first period of time.
REFERENCES:
patent: 3970183 (1916-07-01), Robinson
patent: 4179223 (1979-12-01), Kwan
patent: 4180335 (1979-12-01), Yamada
patent: 4469460 (1989-09-01), Hughes
patent: 4761085 (1988-08-01), Angst
patent: 4976555 (1990-12-01), Ueyama
Kelley Steven S.
Matsushita Electric - Industrial Co., Ltd.
Wiecking David A.
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