Film handling means for a laser recorder

Details Film handling means for a laser recorder Film handling means for a laser recorder

1987-04-21

1989-03-21

Goldberg, E. A.

Recorders

Printing, dotting, or punching marker

Ink transfer support or moving means

346136, 355 16, G01D 942, G01D 1524

Patent

active

048147931

ABSTRACT:
A laser recorder applicable to computer output microfilm recording apparatus comprises: a housing, a film feed unit having a film cassette loaded with a rolled heat development film; a film take-up unit for taking up the heat development film on a reel or on a tray, including a film storing mechanism for storing cut films sequentially; a main driving unit for driving the heat development film for advancing at a fixed speed for auxiliary scanning for recording image information on the heat development film, including a slackened film relief mechanism for eliminating slackened film around the main driving unit and a stepping motor driving current control circuit for driving the main driving unit at a low and fixed speed; loop detectors for preventing film feed force and film delivery force from working on the main driving unit, an image information recording unit for main scanning, having a laser optical system for scanning the heat development film across the width thereof to record image information recorded on the heat development film thereon; and a heat-development unit for heat-developing the image information recorded on the heat development film, including a delivery driving roller unit and a guide roller unit driven at different speeds respectively for eliminating slackened film around the heat-development unit as well as controlling the heat-development time, a temperature controller for controlling heat-development unit temperature, and a swing roller for separating the film from the heat-development unit when heat-development is not required.

REFERENCES:
patent: 4257053 (1981-03-01), Gilbreath
patent: 4302408 (1981-12-01), Kiyohara
patent: 4573059 (1986-02-01), Shinma
patent: 4598300 (1986-07-01), Ono

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