公开(公告)号：DE3376741D1

公开(公告)日：1988-06-30

申请号：DE3376741

申请日：1983-11-29

Applicant: IBM

Inventor： GOFF WILLIE ,  KU TA CHENG

IPC: B41J2/325 ,  B41J17/08 ,  B41J17/18 ,  B41J17/28 ,  B41J35/16 ,  B41J3/20 ,  B41J35/18

Abstract: In a thermal printer the transfer ribbon (2) such as one having sets of transverse color stripes is guided over a ribbon support (16) carrying the heat applying print head (17). Ribbon support (16) is movable relative to the paper (1) by an eccentric (32, 33) to move ribbon (2) into and out of contact with paper (1). A support beam (18) and a guiding roller (19) are provided immediately behind print area (3) to guide ribbon (2) away from the media path at an angle (22) of more than 45°. Color printing is performed by clamping paper and ribbon, applying heat, transferring color material, retracting the ribbon from the paper, advancing the ribbon to the next color area, printing again on the very same paper area as often as desired, repeating this as often as necessary and advancing the paper after finishing the present print line.

公开(公告)号：DE2708407A1

公开(公告)日：1977-09-15

申请号：DE2708407

申请日：1977-02-26

Applicant: IBM

Inventor： KU TA CHENG ,  STILES DONALD JOSEPH

IPC: B41J1/44 ,  B41J1/34 ,  B41J7/52 ,  B41J25/24 ,  B41J1/46

Abstract: A serial printer which includes a print element which traverses back and forth in front of the paper. The print element is in the shape of a cup. The sides of the cup are formed by a plurality of fingers, each of which has a number of characters thereon. A hammer is located in the center of the cup. The fingers can be selectively raised whereby any one of the characters on each finger can be moved to the print position. Printing is accomplished by rotating the cup so that the desired finger is located between the hammer and the paper. If necessary, the finger is raised so that the desired character is positioned in the print position. The hammer is then fired to print the desired character.