Motor control system of printer

Details Motor control system of printer Motor control system of printer

1986-08-07

1988-03-29

Burr, Edgar S.

Typewriting machines

Carriage or carriage-moving or movement-regulating mechanism

For stopping carriage in tabular position

400 76, 400279, 400322, 346 77R, B41J 2108

Patent

active

047339810

ABSTRACT:
A motor control system of a printer of the type wherein a desired slow-up of a print head is effected by making use of the rotation of a stepping motor and printing is performed by the use of the head, which is characterized by a slow-up means for increasing gradually a drive frequency of the stepping motor from the stopped state of the head so as to provide a print speed required for the head to perform a print action thereby to result in a desired drive frequency, and a print processing means for instructing the head to perform printing, wherein the slow-up means effects slow-up over and beyond an inter-character space extending up to a next print character, and the print processing means instructs printing after passed over the inter-character space and even while slow-up is being effected, whereby the print speed can be enhanced while maintaining the quality of print.

REFERENCES:
patent: 3910396 (1975-10-01), Eischen et al.
patent: 4275968 (1981-06-01), Inwin
patent: 4311399 (1982-01-01), Wegryn et al.
patent: 4589285 (1986-05-01), Sato

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