B - Operations – Transporting – 41 – J
Patent
B - Operations, Transporting
41
J
354/236.131
B41J 9/00 (2006.01) B41J 1/24 (2006.01) G06F 3/12 (2006.01) G06F 9/22 (2006.01) G06K 15/06 (2006.01)
Patent
CA 1063033
ABSTRACT OF THE DISCLOSURE A serial printer comprises a carriage, a print member rotatably mounted to the carriage, a drive assembly coupled to the print member for rotating the print member in a desired direction and at a desired speed, and control apparatus coupled to the drive means for generating a control signal to control the direction and speed of rotation of the print member. The control apparatus is capable of generating a first signal indicative of the rotational movement of the print member. Also, in response to a second signal indicative of a command to position the print wheel at a predetermined reference rotational position, the control apparatus applies a predetermined control signal to the drive assembly to rotate the print member in a predetermined direction and at a predetermined speed. The control apparatus is also capable of generating a third signal each time a predetermined portion of the print member is rotated past a predetermined reference location, and of comparing the first signal with a predetermined third signal representative of a predetermined number of rotations of the print wheel portion past the pre- determined reference location. The control apparatus is further responsive to the first and predetermined third signals bearing a first relationship for stopping the print member at the predetermined reference rotational position, and responsive to the first and predetermined third signals bearing a second relationship for continuing to apply the predetermined control signal to the drive assembly in order to continue to rotate the print member in the predetermined direction and at the predetermined speed.
276243
Chang Louis H.
Fravel John C.
LandOfFree
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