Printer and control method thereof

Details Printer and control method thereof Printer and control method thereof

2007-10-23

2007-10-23

Chau, Minh (Department: 2854)

Typewriting machines

Sheet or web

Including friction-feed means

C400S611000, C400S636100

Reexamination Certificate

active

11495712

ABSTRACT:
An encoder is adapted to be opposed to a scale provided with a plurality of marks or slits arranged in a first direction at predetermined intervals. A plurality of detectors is arranged in a second direction perpendicular to the first direction while being staggered in the first direction, each of which detects a position of each of the marks or slits, and the plurality of detectors being operable to respectively output an detection signal which has a first frequency. A first signal generator is operable to generate an first output signal which has a second frequency which is 2n-times of the fist frequency based on the detection signal output from a first detector of the plurality of detectors. A second signal generator is operable to generate a second output signal which has the second frequency based on the detection signal output from a second detector of the plurality of detectors. A third signal generator is operable to generate a third output signal which has the second frequency based on the detection signal output from a third detector of the plurality of detectors. A fourth signal generator is operable to generate a fourth output signal which has the second frequency based on the detection signal output from a fourth detector of the plurality of detectors. A controller is operable to perform a switching control between a first predetermined control based on one of: 1) the first output signal and the third output signal; or 2) the second output signal and the fourth output signal output from the encoder, and a second predetermined control based on the first output signal, the second output signal, the third output signal, and the fourth output signal.

REFERENCES:
patent: 4618278 (1986-10-01), Iwai
patent: 6967729 (2005-11-01), Iwamura
patent: 2007/0098476 (2007-05-01), Goeree et al.
patent: 2001-232882 (2001-08-01), None

Affiliated with

Also associated with

Rating

Printer and control method thereof does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Printer and control method thereof, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Printer and control method thereof will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3853338