Image-forming apparatus

Details Image-forming apparatus Image-forming apparatus

2007-08-21

2007-08-21

Nguyen, Lamson (Department: 2861)

Incremental printing of symbolic information

Ink jet

Controller

Reexamination Certificate

active

11229299

ABSTRACT:
An image-forming apparatus is disclosed. The apparatus includes a paper-carrying belt for carrying paper, drive unit for driving the paper-carrying belt, a scale provided on the paper-carrying belt that indicates position information and that partially has a scale seam portion, position-detection unit for reading the position information from the scale, and control unit for generating position information from an output of the position-detection means and controlling the drive means based on the position information in order to drive and control the paper-carrying belt.A first sensor and a second sensor for reading the position information from the scale are provided as the position-detection means, and the first sensor and the second sensor are provided in order to be separated by a distance which is more than or equal to a gap width of the scale seam.The control is configured to use as position information what is combined after putting weightings on a first sensor output which is output from the first sensor and a second sensor output which is output from the second sensor.

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