Toner image fusing device with optimized control of cooling a pr

Details Toner image fusing device with optimized control of cooling a pr Toner image fusing device with optimized control of cooling a pr

1994-02-18

1996-08-27

Brase, Sandra L.

Photocopying

Contact printing

Light boxes

355282, G03G 1520

Patent

active

055506216

ABSTRACT:
Four cooling fans 1 to 4 are provided under a pressure roller along its axial direction in a symmetric manner. The outside cooling fans 1 and 4 are disposed so as to face the non-paper-passing portions of the pressure roller when an A1 size transfer sheet is running with-its longer sides being parallel with the transport direction. The middle cooling fans 2 and 3 are disposed so as to face the non-paper-passing portions of the pressure roller when an A2 size transfer sheet is running with its longer sides being parallel with the transport direction. If the ambient temperature is high, all the cooling fans 1 to 4. are driven. If the ambient temperature is low, only the cooling fans 1 and 4 are driven when an A1-size sheet comes.

REFERENCES:
patent: 4822977 (1989-04-01), Leising et al.
patent: 4963942 (1990-10-01), Aoki
patent: 4963943 (1990-10-01), Tamary
patent: 5151573 (1992-09-01), Masuda
patent: 5210580 (1993-05-01), Aslam et al.
patent: 5212528 (1993-05-01), Matsuda
patent: 5247336 (1993-09-01), Mills, III

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