Increased transference of a toner image on to a copy sheet by us

Details Increased transference of a toner image on to a copy sheet by us Increased transference of a toner image on to a copy sheet by us

1990-08-01

1991-04-30

Grimley, A. T.

Photocopying

Contact printing

Light boxes

355275, 355277, 355309, G03G 1514

Patent

active

050122908

ABSTRACT:
The present invention comprises a printing machine of the type having a toner image interposed between a flexible member and a sheet. Specifically, the printer has a device for transferring the toner image from the flexible member to the sheet, an apparatus separating the sheet from the flexible member, and a device, located intermediate the transferring means and the separating means, for providing a relative motion between the sheet and flexible member so as to reduce electrostatic forces between the toner and flexible member for improving transfer efficiency. Specifically, the device for providing relative motion incorporates a device for creating a substantially non-tensioned condition in the flexible member and sheet. More particularly, the invention has apparatus for forming a non-tensioned buckle in the portion of the flexible member located intermediate the transferring means and the separating means so as to form the non-tensioned condition in the buckle portion of the flexible member and a tensioned condition in the remainder of the flexible member. More specifically, the non-tensioned buckle comprises a gripping device to hold the flexible member on the outside edges so as to maintain the non-tensioned buckle thus improving transfer efficiency.

REFERENCES:
patent: 3601392 (1971-08-01), Spear, Jr.
patent: 3957367 (1976-05-01), Goel
patent: 4013041 (1977-03-01), Armstrong et al.
patent: 4017065 (1977-04-01), Poehlein
patent: 4062631 (1977-12-01), Ichikawa et al.
patent: 4236809 (1980-12-01), Kermisch
patent: 4508334 (1985-04-01), Iwanaga
patent: 4914482 (1980-04-01), Ammenheuser et al.
patent: 4928141 (1990-05-01), Poehlein et al.
patent: 4945387 (1990-07-01), Landa et al.
patent: 4951095 (1990-08-01), Warden

Affiliated with

Also associated with

Rating

Increased transference of a toner image on to a copy sheet by us does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Increased transference of a toner image on to a copy sheet by us, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Increased transference of a toner image on to a copy sheet by us will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-644240