Search patents:
Dot matrix character printer control circuitry for variable pitch printing
Dot matrix character printer control circuitry for variable pitch printing
Filed: October 23rd, 1979 [Granted]
Patent Number: 4326813
1 B41J 3/12 [52] US CI 400/124; 400/306; 400/322; 400/323 [58] Field of Search 400/124, 119, 120, 121, 400/320, 322, 323, 328, 305, 306; 328/151; 101/93.04, ...
Matrix pin print head with rebound control
Matrix pin print head with rebound control
Filed: June 27th, 1991 [Granted]
Patent Number: 5188466
B41J 2/27 [52] US CI 400/124; 400/167 [58] Field of Search 400/124167; 101/93.02 , 93.05 [56] References Cited US PATENT DOCUMENTS 4613243 9/1986 Rossi et al ...
Printing device capable of low-density printing and high-density printing
Printing device capable of low-density printing and high-density printing
Filed: May 31st, 1989 [Granted]
Patent Number: 4941761
B41J 3/12 [52] USC1 400/124; 400/121; 101/93.05 [58] Field of Search 400/121124; 101/93.05 [56] References Cited US PATENT DOCUMENTS 4010835 ...
Noise reducing back stopper for an impact print head
Noise reducing back stopper for an impact print head
Filed: April 29th, 1991 [Granted]
Patent Number: 5149213
... B41J 29/10 [52] US CI 400/124; 400/121; 400/689; 310/327; 310/326 [58] Field of Search 310/326, 327, 311; 400/124, 121, 689; 101/93.05 [56] References ...
Dot matrix printer ink supply system having ink absorbing member ...
Dot matrix printer ink supply system having ink absorbing member ...
Filed: November 30th, 1990 [Granted]
Patent Number: 5221148
B41J 2/305 [52] US CI 400/124; 400/470 [58] Field of Search 400/124, 124 IW, 470 , 400/471, 471.1; 346/140 R, 140 PD; 101/97, 98, 333, 335, ...
Wire driving armature for dot printer
Wire driving armature for dot printer
Filed: February 2nd, 1984 [Granted]
Patent Number: 4569605
B41J 3/00; B41J 3/10 [52] US CI 400/124; 400/174; 101/93.05 [58] Field of Search 400/118, 121, 124, 174, 400/157.1; 101/93.04, 93.05 [56] References Cited ...
Ink-dot printer
Ink-dot printer
Filed: October 21st, 1985 [Granted]
Patent Number: 4776712
Off. 400/124 3019012 11/1980 Fed. Rep. of Germany 400/124 54-85029 7/1979 Japan 400/124 20464 2/1983 Japan 400/124 215366 12/1983 Japan 400/470 101372 ...
Character position control for a matrix printer
Character position control for a matrix printer
Filed: November 8th, 1978 [Granted]
Assignee: NCR Corporation
Patent Number: 4247214
400/705.1; 400/120; 400/124; 400/126; 400/320; 340/870.29; 250/237 G; ... 400/2, 76, 120, 124, 400/126, 279, 280, 281, 320, 322, 323, 328, 705.1; 346/76 R, ...