Image recorder with microstep driven motor transport

Details Image recorder with microstep driven motor transport Image recorder with microstep driven motor transport

1988-04-25

1990-01-02

Reynolds, B. A.

Recorders

Printing, dotting, or punching marker

Ink transfer support or moving means

358296, G01D 1524, G01D 1514, H04N 123

Patent

active

048916536

ABSTRACT:
An image forming apparatus for forming in series a plurality of images on a photosensitive film of the long roll type having a film transporting mechanism using a stepping motor, a microstep driver for controllably driving the stepping motor in a plurality of microsteps constituting one step unit of the stepping motor and an imaging device for forming an image on the film being transported by the film transporting mechanism. According to this image forming apparatus, variations in the film transport start positions resulting from the microstep-wise drive are avoided either by the film transporting mechanism arranged such that a pitch between adjacent images to be formed in series on the film is a multiple of an integer of a film transport distance covered by the single step unit of the stepping motor, or by an initial control device for re-setting the stepping motor to a stop position thereof assumed at completion of a previous imaging operation before re-energizing the stepping motor for a next imaging operation.

REFERENCES:
patent: 4257053 (1981-03-01), Gilbreath
patent: 4307408 (1981-12-01), Kiyohara
patent: 4573059 (1986-02-01), Shinma et al.
patent: 4598300 (1986-07-01), Ono

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