Thermal conservation apparatus

Details Thermal conservation apparatus Thermal conservation apparatus

1984-06-11

1985-11-05

Moses, R. L.

Photocopying

Projection printing and copying cameras

Combined with or convertible to a contact printer

355 3FU, 219216, 432 60, G03G 1520

Patent

active

045510067

ABSTRACT:
Thermal conservation apparatus for use in reproduction apparatus in which copy sheets carrying unfused images are moved successively along a path through a heated fuser. The thermal conservation apparatus includes a moveable gate assembly located adjacent to the heated fuser in the sheet path. A control is coupled to the gate assembly for opening the assembly to pass a copy sheet and for closing the assembly when a copy sheet is not passing to minimize the loss of thermal energy from the heated fuser along the sheet path. The gate assembly may include gates at both the entrance to or exit from the fuser or at either location. The control maintains the gate assembly continuously open when successive sheets are spaced closely together to facilitate movement of the sheets through the fuser. The gate assembly may include members on opposite sides of the path which are moveable towards and away from one another to closed and open positions.

REFERENCES:
patent: 3356831 (1967-12-01), Andrus et al.
patent: 3667742 (1972-06-01), Kamola
patent: 3849907 (1974-11-01), Lynch
patent: 3922520 (1975-11-01), Moore
patent: 3937919 (1976-02-01), Clerx et al.
patent: 3998584 (1976-12-01), Wada et al.
Research Disclosure No. 16732, Mar. 1978, "Thermal Conservation Assembly for Roller Fuser".

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