Charge imaging system for a printing press
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 18, 1994
Grant Date -
N/A
app pub date -
Apr 17, 1992
filing date -
Apr 17, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An imaging system (12) for a printing press (10) having an imaging cylinder (44) having an outer surface (46) mobile to movement of charged particles, a device (52) for inducing a charge on the surface of the cylinder (44) of a first polarity, a film (48), a device (50) for passing the film (48) over at least a portion of the outer surface (46) of the imaging cylinder (44), a device (53) for passing charged particles of a second opposite polarity in a pattern through the film (48) onto the outer surface (46) of the imaging cylinder (44), a device (56) for passing a charged particulate material of the second polarity opposite the first polarity onto the film (48) over the pattern information on the cylinder (44) to form an image (80) of the particulate material (58) on the film (48), a device (62) for bonding the particulate material (58) onto the film (48), a print cylinder (36 or 38) having an outer surface (66), and a device (70) for placing a segment of the film (48) over the outer surface (66) of the print cylinder (36 or 38).
First Claim
Other Claims data not available