Photocopying – Contact printing – Light boxes
Patent
1994-07-05
1996-02-13
Ramirez, Nestor R.
Photocopying
Contact printing
Light boxes
118656, 355252, 355326R, G03G 1508
Patent
active
054915384
ABSTRACT:
A printing machine of the type in which a latent image recorded on an image bearing surface is developed with toner to form a visible image thereof, includes a development apparatus for developing the latent image. The development apparatus includes a housing storing a supply of magnetically-attractable developer material containing toner. A moving flexible donor belt mounted within the housing spaced from the image bearing surface transports developer to a development zone adjacent the image bearing surface. A magnetic member attracts and transports the developer material within the housing to the donor belt. A plurality of selectively-actuable electrodes embedded within the donor belt are biased to create a powder-cloud of toner particles within the development zone. Within the development zone, the flexible donor belt moves over a pair of spaced apart support rollers defining the width of the development nip. The spacing between the support rollers is adjustable to inexpensively create different widths for development nips from a common structure development unit, thereby saving image bearing member real estate within the development zone and improving the quality of image development.
REFERENCES:
patent: 3257223 (1966-06-01), King
patent: 3257224 (1966-06-01), Jons et al.
patent: 5172170 (1992-12-01), Hays et al.
patent: 5276488 (1994-01-01), Schmidlin
patent: 5289240 (1994-02-01), Wayman
patent: 5339142 (1994-08-01), Hays
patent: 5386277 (1995-01-01), Hays et al.
patent: 5394225 (1995-02-01), Prker
Ramirez Nestor R.
Xerox Corporation
LandOfFree
Development apparatus having an adjustable width development nip does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Development apparatus having an adjustable width development nip, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Development apparatus having an adjustable width development nip will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-243686