Coating apparatus – With heat exchange – drying – or non-coating gas or vapor... – With solid heat exchange means contacting work
Patent
1976-04-22
1979-01-30
Newton, Dorsey
Coating apparatus
With heat exchange, drying, or non-coating gas or vapor...
With solid heat exchange means contacting work
432 60, B05C 1100
Patent
active
041366131
ABSTRACT:
A copy sheet is fed between a heated fixing roller and a nip roller to fix a toner image to the sheet. An applicator applies an offset preventing liquid to a transfer roller which transfers the liquid to the fixing roller. A spring arrangement presses the applicator against the transfer roller and another spring arrangement presses the transfer roller against the fixing roller in such a manner that the transfer roller is normally held against rotation and is caused to rotate when the liquid thickness on the fixing roller drops below a predetermined value at which the coefficient of friction between the transfer roller and the fixing roller becomes greater than the ratio of the tangential to the normal forces therebetween. The transfer roller through rotation applies the liquid to the fixing roller to increase the liquid thickness thereon. The spring forces are selected so that the normal force between the transfer roller and fixing roller is greater than the normal force between the transfer roller and applicator.
REFERENCES:
patent: 535393 (1895-03-01), Norton
patent: 2398844 (1946-04-01), Muggleton et al.
patent: 2770215 (1956-11-01), Knight
patent: 3751216 (1973-08-01), Gregory
patent: 3810776 (1974-05-01), Banks et al.
patent: 3848305 (1974-11-01), Jachimiak
patent: 3874843 (1975-04-01), Fujimoto
patent: 3880577 (1975-04-01), Tomono et al.
patent: 4011353 (1977-03-01), Okamoto et al.
Jordan Frank J.
Newton Dorsey
Ricoh & Company, Ltd.
LandOfFree
Fixing apparatus for electrostatic photography does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Fixing apparatus for electrostatic photography, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fixing apparatus for electrostatic photography will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1145367