Ink jet printer head
AssigneeToshiba Tec Kabushiki Kaisha
InventorsTakashi Kikuchi, Isao Suzuki
Life of this patent
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Abstract
The present invention provides a plate-like protect member at a front surface of an ink jet printer head having an orifice which is capable of jetting ink. The protect member provides a step around the orifice having an outer portion higher than an inner portion. The protect member also provides an ink repellency layer on an outer portion of the step. Thus, the ink jet printer head of the present invention can prevent the jetted ink from the orifice to creep up toward back of the ink jet printer head which is reverse direction to the ink jetting direction.
Claims23
An ink jet printer head, comprising:
- an ink chamber for storing ink;
- a plurality of ink nozzles arrayed at a front surface of the ink jet printer head to connect to the ink chamber so as to contribute jetting the ink;
- and
- a creep preventing structure provided adjacent to the ink nozzles for preventing the jetted ink from the ink nozzle to creep up toward a back of the ink jet printer head which is reverse direction to the ink jetting direction.
An ink jet printer head, comprising:
- an ink chamber for storing ink;
- a plurality of ink nozzles arrayed at a front surface of the ink jet printer head to connect to the ink chamber so as to contribute jetting the ink;
- a protect member provided on the front surface of the ink jet printer head to cause at least both sides of the ink nozzle array higher than an ink nozzle arranging surface so as to protect the ink nozzle arranging surface, and
- a groove provided around the ink nozzle array at a front surface of the protect member.
An ink jet printer head, comprising:
- an ink chamber for storing ink;
- a plurality of ink nozzles arrayed at a front surface of the ink jet printer head to connect to the ink chamber so as to contribute jetting the ink;
- a protect member provided on the front surface of the ink jet printer head to cause at least both sides of the ink nozzle array higher than an ink nozzle arranging surface so as to protect the ink nozzle arranging surface, and
- a step provided around the ink nozzle array at a front surface of the protect member having an outer portion higher than an inner portion.
An ink jet printer head, comprising:
- an ink chamber for storing ink;
- a plurality of ink nozzles arrayed at a front surface of the ink jet printer head to connect to the ink chamber so as to contribute jetting the ink;
- a protect member provided on the front surface of the ink jet printer head to cause at least both sides of the ink nozzle array higher than an ink nozzle arranging surface so as to protect the ink nozzle arranging surface, and
- an attachment restraint member formed at a front surface of the protect member by causing at least part of the front surface of the protect member ink repellent so as to retrain the ink attaching to the front surface of the ink jet printer head.
An ink jet printer head, comprising:
- an ink chamber for storing ink;
- a plurality of ink nozzles arrayed at a front surface of the ink jet printer head to connect to the ink chamber so as to contribute jetting the ink;
- a protect member provided on the front surface of the ink jet printer head to cause at least both sides of the ink nozzle array higher than an ink nozzle arranging surface so as to protect the ink nozzle arranging surface, and
- a move restraint member formed as a shape of the protect member, which is tapered toward the front end of the ink jet printer head, so as to prevent the attached ink on the front surface of the ink jet printer head to move toward the back of the ink jet printer head.
Dependencies are inferred from the claim text.