Control unit and method for controlling motor for use in...

Details Control unit and method for controlling motor for use in... Control unit and method for controlling motor for use in...

2005-11-22

2005-11-22

Williams, Kimberly (Department: 2626)

Facsimile and static presentation processing

Static presentation processing

Detail of medium positioning

C358S001120, C347S218000

Reexamination Certificate

active

06967729

ABSTRACT:
There is provided precise paper feeding. A control unit for controlling a motor for use in a printer includes a position counter to count output pulses of an encoder that rotates to follow rotation of the motor and detect a position of a printing medium transferred by the motor; a target control amount modifying and calculating part to calculate a modified target value of a feed-amount of the printing medium based on a target value of a feed-amount of the printing medium and a previous stop position of the printing medium detected by the position counter, and set a counted value of the position counter to the modified target value; and a position control part to control the motor so that the counted value of the position counter falls into a predetermined range including zero.

REFERENCES:
patent: 5555462 (1996-09-01), Fukumoto et al.
patent: 03-262663 (1991-11-01), None
JPO Abstract 03(1991)-262663, Dec. 22, 1991.

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