Seiko Epson Corporation

Kohji Watanabe

Fujio Akahane

Yoshikatsu Yamamoto

Takahiro Katakura

Kazuhiko Hara

Satoshi Fujioka

Nagamitsu Takashima

Motonori Okumura

Yuji Tanaka

Takaichi Wada

Satoshi Shinada

Tsuyoshi Kitahara

Takao Kobayashi

Eiji Kumai

Masanori Yoshida

Susumu Murayama

Kenichi Kanbayashi

Atsushi Nishizawa

Hiromu Hirabayashi

Takayuki Okuda

A method of manufacturing an ink-jety recording head in which an ink supply port forming substrate , a common ink chamber forming substrate , and a nozzle plate are bonded together by inserting between them thermally fusible films and respectively, in which are formed through holes and at two or more positions, and by also filling the film through holes with an adhesive that is mixed with a gap material G for adjusting the thicknesses of the thermally fusible films when they are fused, so as to form a flow path unit ; and then the flow path unit and the actuator units are bonded together by inserting between them a thermally fusible film , in which are through holes at two or more positions, and by also filling the through holes with an adhesive that is mixed with a gap material G for adjusting the thickness of the thermally fusible film when it is fused.

Method of manufacturing an ink-jet recording head using a thermally fusible film that does not close communication holes

In an ink jet printer, a recording unit in which an ink cartridge is detachably mounted has a cartridge removal preventing member so that the ink cartridge is prevented from being carelessly removed therefrom, and a moving mechanism is provided which, when the recording unit is mounted on the carriage, moves a first electrical connecting section towards a second electrical connecting section so that the first and second electrical connection section are connected to each other with the aid of an energizing member under pressure, and, when the recording head is removed from the carriage, moves the first electrical connecting section away from the second electrical connecting section against the elastic force of the energizing member, whereby the recording head is detachably mounted on the carriage, and the former is positively electrically connected to the latter.

Ink jet type recording unit, and printer with it

An ink supply port forming substrate 21, a common ink chamber forming substrate 25, and a nozzle plate 27 are bonded together, by inserting between them thermally fusible films 31and 32 respectively, in which are formed through holes 45 and 45 at two or more positions, and by also filling the film through holes with an adhesive that is mixed with a gap material G for adjusting the thicknesses of the thermally fusible films when they are fused, so as to form a flow path unit 30; and then the flow path unit 30 and the actuator units 1 are bonded together by inserting between them a thermally fusible film 33, in which are through holes 64 at two or more positions, and by also filling the through holes with an adhesive that is mixed with a gap material G for adjusting the thickness of the thermally fusible film when it is fused. In this structure, the extruded quantity of the thermally fusible films can be received by the through holes 45 and 64, and the gap materials G can prevent the thermally fusible films from being unnecessarily spread out.

Using fusible films having windows supplied with adhesive and gap

In an ink jet printer, a recording unit in which an ink cartridge is detachably mounted has a cartridge removal preventing member so that the ink cartridge is prevented from being carelessly removed therefrom, and a moving mechanism is provided which, when the recording unit is mounted on the carriage, moves a first electrical connecting section towards a second electrical connecting section so that the first and second electrical connecting section are connected to each other with the aid of an energizing member under pressure, and, when the recording head is removed from the carriage, moves the first electrical connecting section away from the second electrical connecting section against the elastic force of the energizing member, whereby the recording head is detachably mounted on the carriage, and the former is positively electrically connected to the latter.

Ink jet type recording unit with an improved carriage structure

Print head of ink jet printer

Lever for recording unit of ink jet printer

Lever for print head for an ink jet printer

A printer using a line-type ink jet recording head. The line-type head has pressure producing chambers formed by dividing nozzle openings extending in a recording paper width direction with vertical side walls and upper and lower ink flow paths which communicate with each other through the pressure producing chambers and extend in a horizontal direction. Each ink flow path has an inlet for replenishing ink and an outlet for discharging the ink. A plurality of pressure producing elements are provided for applying varied pressures to the pressure producing chambers for jetting ink droplets. A sealing member selectively seals the nozzle openings by abutting on the nozzle openings when the recording head has been evacuated to a predetermined position. An ink tank is connected to the inlets and the outlets through pipes, and an ink stream producing device is arranged in the pipes, for producing streams causing the ink to flow from the ink tank to the lower ink flow path and then to the upper ink flow path through the pressure producing chambers.

Printer having line-type ink jet recording head

Growing community of inventors

Nagano, Japan

Kohji Watanabe