Printing – Selective or progressive – Bed and platen machines
Patent
1984-06-29
1985-10-15
Crowder, Clifford D.
Printing
Selective or progressive
Bed and platen machines
101 9304, B41J 120
Patent
active
045466998
ABSTRACT:
A printer of the type including a platen, a bank of hammers extending in a straight line and spaced from the platen, a metal band on which are mounted print elements and drive means for moving the band between the platen and the hammer bank is provided with means for controlling the movement of the band. This band movement control means includes a guide surface extending along the hammer bank and bearing means located adjacent to one edge of the guide surface and including at least one bearing surface extending perpendicular to the guide surface. The control means also includes a permanent magnet means located adjacent to the guide surface and the bearing means and adapted to attract one surface of the band to the guide surface and one edge of the band to the bearing surface. The permanent magnet means comprises a plurality of elongated parallel sided permanent magnet members each magnetized so as to exhibit a pole of one polarity on one elongate surface and a pole of the opposite polarity on the opposite elongate surface. The elongated permanent magnet members are positioned side by side in parallel lines so that the exposed elongate surfaces of adjacent members exhibit poles of opposite polarity. The elongated permanent members are located on the guide surface so that the parallel lines are inclined at an angle to the direction of movement of the band past the surface, towards the bearing surface.
REFERENCES:
patent: 3379125 (1968-04-01), Antonucci
patent: 3381611 (1968-05-01), Foley
patent: 3435756 (1969-04-01), Martin
patent: 3766852 (1973-10-01), DePuy
patent: 3805697 (1974-04-01), Mahe
patent: 3845711 (1974-11-01), Helms
patent: 4461207 (1984-07-01), Helinski
IBM Technical Disclosure Bulletin vol. 23, No. 6, Nov. 1980, pp. 2430-2431, "Magnetic Print Belt Drive Mechanism" by Keplar et al.
IBM Technical Disclosure Bulletin vol. 24, No. 10, Mar. 1982, pp. 4956-4957, "Print Belt Damper" by Hendriks.
Sedgwick David M.
Thorne William D.
Coffman E. Ronald
Crowder Clifford D.
International Business Machines - Corporation
Pearson Charles A.
LandOfFree
Printer having drive and control system for metal band holding p does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Printer having drive and control system for metal band holding p, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Printer having drive and control system for metal band holding p will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2430925