Back stop structure for matrix pin print head

Details Back stop structure for matrix pin print head Back stop structure for matrix pin print head

1994-01-21

1995-07-25

Burr, Edgar S.

Typewriting machines

Typing by other than type-face or type-die

Character formation by impact

40012406, 40012417, 40012422, B41J 2275

Patent

active

054356563

ABSTRACT:
A matrix pin print head is set to a fixed distance (17) relative to a print counter support (2), where a recording substrate (3) rests on the print counter support (2). An ink ribbon (4) is guided in front of the print pins (5) between the matrix pin print head (1) and the recording substrate (3). Electromagnetic-coil pin drives (8, 9, 10) are coordinated jointly to the print pins (5) or individually to each print pin (5). Each print pin (5) can be moved within a stroke path (16) from a rearward withdrawn position (18) into a forward extended position (19) and back. In order to adjust the operating air gap (25) between a magnet yoke (9) and a clapper armature (10) during its operation, it is provided that the drive energy, fed of equal size in each case to each print pin (5), is changeable in each case in uniform amounts, i.e. by equal amounts, to enlarge or to decrease the drive energy fed to the respective print pin (5).

REFERENCES:
patent: 3929214 (1975-12-01), Hebert
patent: 4141661 (1979-02-01), Geis et al.
patent: 4260270 (1981-04-01), Cavallari
patent: 4367962 (1983-01-01), Gaboardi
patent: 4443122 (1984-04-01), Blomquist et al.
patent: 4476781 (1984-10-01), Kubacki et al.
patent: 4594010 (1986-06-01), Jachno
patent: 4600321 (1986-07-01), Kwan
patent: 4643598 (1987-02-01), Pruski
patent: 4793252 (1988-12-01), Pichler
patent: 4822187 (1989-04-01), Gugel
patent: 5039238 (1991-08-01), Kikuchi et al.
patent: 5054942 (1991-10-01), Bernardis et al.
IBM Technical Disclosure Bulletin, vol. 31, No. 4, Sep. 1988 "Controls for Automated Adjustment of Print Wire Seal Time", pp. 347-351.
Xerox Disclosure Journal, vol. 1 No. 7, Jul. 1976, "Automatic Impression Control", p. 31.

Affiliated with

Also associated with

Rating

Back stop structure for matrix pin print head does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Back stop structure for matrix pin print head, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Back stop structure for matrix pin print head will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-736250