Solenoid controlled sheet registration mechanism

Electrophotography – Machine operation – Sequential control

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

399394, G03G 2114, G03G 1500

Patent

active

056280424

ABSTRACT:
A solenoid-controlled sheet registration mechanism for a copier/printer includes registration fingers for registering the lead edge of a sheet before it is fed to the transfer station of the copier/printer, to receive a developed image from the photoreceptor. The mechanism also includes a pair of nip rolls for forwarding the sheet to the transfer station, after registration. Energization of the solenoid moves the registration fingers into the registration position and disengages the nip rolls. Conversely, release of the solenoid allows the registration fingers to return to a non-registration position and the nip rolls to return to paper-feeding engagement, both of those return movements taking place under a resilient bias. To soften the impact between the nip rolls as they re-engage, and so reduce any resulting noise, the release of the solenoid is controlled by applying a pulsed drive signal to the solenoid during the release period after the energizing signal has ceased.

REFERENCES:
patent: 4302093 (1981-11-01), Landa
patent: 4350329 (1982-09-01), Holzhauser et al.
patent: 4436404 (1984-03-01), Simmons et al.
patent: 4529188 (1985-07-01), Sturnick
patent: 4704655 (1987-11-01), Yamauchi
patent: 5085418 (1992-02-01), Rapkin et al.
EPO Search Report.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Solenoid controlled sheet registration mechanism does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Solenoid controlled sheet registration mechanism, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Solenoid controlled sheet registration mechanism will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2140735

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.