公开(公告)号：CH595993A5

公开(公告)日：1978-02-28

申请号：CH1509875

申请日：1975-11-21

Applicant: IBM

Inventor： HELSINKI EDWARD FRANK ,  ZABLE JACK LOUIS

IPC: B41J2/075 ,  B41J2/02 ,  B41J2/035 ,  B41J2/10 ,  G06K15/10 ,  G06K15/22 ,  H04N1/034 ,  B41J3/04 ,  G06K15/02 ,  H04N1/24

Abstract: In an ink jet recorder, a ferrofluid ink is supplied under pressure to a nozzle to form a continuous ink jet stream. The jet stream is subjected to two or more perturbation forces out-of-phase with each other causing the satellites and drops to fast merge. Plural electromagnetic transducers are located at spaced locations along the stream and energized to produce out-of-phase perturbations on the stream. The spacing of the transducers is differentially related to spacing of varicosities or ink drops produced by first transducer. The out-of-phase perturbations can also be obtained using an electromechanical transducer and electromagnetic transducers located out-of-phase or energized out-of-phase with each other.

公开(公告)号：IT1150988B

公开(公告)日：1986-12-17

申请号：IT2190980

申请日：1980-05-09

Applicant: IBM

Inventor： HELSINKI EDWARD FRANK

IPC: B41J32/02 ,  B41J33/26 ,  G11B23/12 ,  B65H75/00 ,  B65H75/02 ,  B41F

Abstract: A cartridge for an inked ribbon has spring support means which maintains a constant back pressure on a uniformly folded ribbon stack inside the storage compartment of the cartridge. The spring support means is displaceable to adjust for dimensional variations occuring within the stack during use.