Image reading and recording apparatus with marking board and mov

Details Image reading and recording apparatus with marking board and mov Image reading and recording apparatus with marking board and mov

1992-05-01

1994-03-29

Coles, Sr., Edward L.

Facsimile and static presentation processing

Facsimile

Picture signal generator

358451, 358296, 254266, 254329, 254362, H04N 110, H04N 123, H04N 1393, B66D 100, B66D 112

Patent

active

052990338

ABSTRACT:
An image reading and recording apparatus such as an electronic blackboard includes a reading unit movable along a guide rail for reading information written on a board, a drive motor integral with the reading unit and operative to move the reading unit relative to the board, and a power transmission mechanism for transmitting a driving force of the drive motor to the reading unit so as to move the reading unit relatively to the board. The power transmission mechanism is composed of a pulley fixed to a drive shaft of the motor and a wire rope extending along the guide rail in a stretched condition and wound around the pulley by one turn. Upon rotation of the motor, the pulley rolls on and along the wire rope, thereby moving the reading unit relative to the board. Due to a large contact area provided between the pulley and the wire rope, the movement of the reading unit is highly reliable and hence the information on the board can be read with high accuracy. The apparatus also includes an image recording unit which is so constructed as to prevent accidental separation of a recording paper from a recording head, thereby ensuring a high quality printing of the information on the recording paper.

REFERENCES:
patent: 4501931 (1985-02-01), Ohya et al.
patent: 4587568 (1986-05-01), Takayama et al.
patent: 4725889 (1988-02-01), Yaniv et al.
patent: 5090666 (1992-02-01), May

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