公开(公告)号：US3424292A

公开(公告)日：1969-01-28

申请号：US3424292D

申请日：1966-06-28

Applicant: IBM

Inventor： GOFF WILLIE JR ,  SPEARS JESSE W

IPC: B41J31/10 ,  B41J33/16

CPC classification number: B41J31/10

公开(公告)号：US3528536A

公开(公告)日：1970-09-15

申请号：US3528536D

申请日：1967-03-15

Applicant: IBM

Inventor： CAUDILL ALLISON H ,  GOFF WILLIE JR ,  PALMER LEON E

IPC: B41J33/56 ,  B41J33/14

CPC classification number: B41J33/56

公开(公告)号：US3604549A

公开(公告)日：1971-09-14

申请号：US3604549D

申请日：1968-07-16

Applicant: IBM

Inventor： CAUDILL ALLISON H ,  GOFF WILLIE JR

IPC: B41J32/00 ,  B41J33/36 ,  B41J33/56 ,  B41J35/36 ,  B41J33/14

CPC classification number: B41J33/36 ,  B41J35/36

Abstract: A ribbon feed mechanism for feeding a substantially constant linear or longitudinal amount of single pass ribbon past a printing position during each ribbon feed cycle. A cartridge, which is removably mounted on a baseplate, has a supply spool and a takeup spool rotatably mounted therein with the ends of the single pass ribbon attached thereto. The bottom wall of the cartridge has a curved slot to receive a resiliently biased drive roller, which is rotatably mounted on a pivotal arm on the baseplate and has pointed projections thereon for penetrating the inked ribbon on the takeup spool to linearly advance the ribbon past its printing position. The drive roller is rotated by a gear train during each actuation of a character key on the typewriter. Means change the gear ratio of the gear train to cause a smaller amount of rotation of the drive roller during each actuation of a character key to advance the ribbon a smaller linear amount. The cartridge has a cylindrical recess to receive a portion of the gear train. When the ribbon is a solvent coated plastic transfer matrix whereby overstriking is desired, then resiliently biased means is disposed within the recess in the cartridge to render the change means operative to reduce the amount of rotation of the drive roller. If a total release ribbon is used wherein no overstriking is desired, then the recess in the cartridge is empty and the larger amount of rotation of the drive roller occurs because the change means is not rendered operative.

公开(公告)号：US3537562A

公开(公告)日：1970-11-03

申请号：US3537562D

申请日：1968-07-16

Applicant: IBM

Inventor： CAUDILL ALLISON H ,  GOFF WILLIE JR

IPC: B41J23/02

CPC classification number: B41J23/025

公开(公告)号：US3432020A

公开(公告)日：1969-03-11

申请号：US3432020D

申请日：1966-01-06

Applicant: IBM

Inventor： CAUDILL ALLISON H ,  GOFF WILLIE JR

IPC: B41J33/22 ,  B41J33/28 ,  B65H23/14

CPC classification number: B41J33/22