Patent EP0376309A2 successfully refreshed from Google Patents.
EP0376309A2
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EP
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Ink jet recording apparatus
Assignee: Canon Inc
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Filing: 1989-12-28
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Granted: —
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Expires: 2009-12-28
Abstract
Abstract There is disclosed an ink jet recording apparatus capable of recovery operation of the ink jet recording head in secure manner. For this purpose the apparatus is provided with an endless belt (304) for transporting a recording sheet by electrostatic attraction; a charger for the endless belt; a cleaner for the endless belt; a recording head unit (305) with plural full-line ink jet heads; a recovery unit having a cleaning blade (88) and an ink absorbing member (3) movable between a recovery position and a stand-by position; and a mechanism for moving the head unit to a recording position, a recovery position or a recovery unit introducing position and moving the recovery unit in relation to the recording head unit; in which the head unit, recovery unit and moving mechanism are integrated as a detachable unit.
Inventors
- 👤 Yasushi Murayama
- 👤 Tomohiro Aoki
- 👤 Takashi Uchida
- 👤 Tatsuo Mitomi
- 👤 Masaharu Nemura
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 18:07
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/135; B41J2/165; B41J2/16585; B41J2/16588; B41J11/00; B41J11/009; B41J11/0095; B41J2/16517; B41J2/1652; B41J29/00; B41J29/17; B41J2/16535; B41J2/16541; B41J2/17; B41J2/1707; B41J2202/00; B41J2202/01; B41J2202/12
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
171 words
An ink jet recording apparatus comprising: an endless belt for transporting a recording material by electrostatic attraction; a charger for charging said endless belt; cleaning means for cleaning said endless belt; a recording head unit containing a plurality of full-line recording heads for discharging ink by forming bubbles therein by thermal energy; a recovery unit containing a cleaning blade member, an ink absorbing member and a linking mechanism therefor for each of said recording heads, and being movable between a recovery position and a stand-by position wth respect to said recording head unit; a moving mechanism for moving said recording head unit in a recording position opposed to said endless belt, a recovery position separate from said recording position, or a recovery unit introducing position separate from said recovery position, and for moving said recovery unit in relation to the movement of said recording head unit; and a detachable unit integrally supporting said recording head unit, recovery unit and moving mechanisms and detachably mounted on the main body of the apparatus.
Claim 2
Dependent Claim
171 words
An ink jet recording apparatus comprising: an endless belt for transporting a recording material by electrostatic attraction; a charger for charging said endless belt; cleaning means for cleaning said endless belt; a recording head unit containing a plurality of full-line recording heads for discharging ink by forming bubbles therein by thermal energy; a recovery unit containing a cleaning blade member, an ink absorbing member and a linking mechanism therefor for each of said recording heads, and being movable between a recovery position and a stand-by position wth respect to said recording head unit; a moving mechanism for moving said recording head unit in a recording position opposed to said endless belt, a recovery position separate from said recording position, or a recovery unit introducing position separate from said recovery position, and for moving said recovery unit in relation to the movement of said recording head unit; and a detachable unit integrally supporting said recording head unit, recovery unit and moving mechanisms and detachably mounted on the main body of the apparatus.
Claim 3
Dependent Claim
40 words
An apparatus according to claim 1, wherein said recording head unit is rendered rotatable about a center of rotation and the aperture of said rotatable part is directed toward the upstream side in the transporting direction of the recording medium.
Claim 4
Dependent Claim
72 words
An ink jet recording apparatus for forming a record by discharging ink from a discharge port toward a face of a recording medium, wherein an ink jet head for said recording is provided with multiple nozzles and elongated over a length substantially equal to the width of the recording material, and comprises ink jet head support means, ink jet head moving means, ink jet head recovery unit and recovery unit driving means.
Claim 5
Dependent Claim
72 words
An ink jet recording apparatus for forming a record by discharging ink from a discharge port toward a face of a recording medium, wherein an ink jet head for said recording is provided with multiple nozzles and elongated over a length substantially equal to the width of the recording material, and comprises ink jet head support means, ink jet head moving means, ink jet head recovery unit and recovery unit driving means.
Claim 6
Dependent Claim
22 words
An apparatus according to claim 3, wherein said ink jet head recovery unit comprises a capping device for said ink jet head.
Claim 7
Dependent Claim
33 words
An apparatus according to claim 3, wherein said ink jet head moving means is rendered rotatable amount a rotating center and stoppable at a printing position, a recovery position or a retracted position.
Claim 8
Dependent Claim
29 words
An apparatus according to claim 4, wherein said recovery unit drive means is adapted to move said recovery unit either to a recovery position or to a retracted position.
Claim 9
Dependent Claim
47 words
An apparatus according to claim 5, wherein said ink jet head moving means is adapted, when said recovery unit is placed in the recovery position, to move said ink jet head to the recovery position and to tightly close a discharge face of said ink jet head.
Claim 10
Dependent Claim
27 words
An apparatus according to claim 3, wherein said ink jet head moving means comprises a worm reducing gear in a part of a power transmitting system thereof.
Claim 11
Dependent Claim
65 words
An ink jet recording apparatus for forming a record by discharging ink from a discharge port toward a face of a recording medium, comprising means for wiping the discharge face of the ink jet head for recording, and means for absorbing the ink discharged from said ink jet head, wherein the driving of said wiping means is linked with the driving of said absorbing means.
Claim 12
Dependent Claim
65 words
An ink jet recording apparatus for forming a record by discharging ink from a discharge port toward a face of a recording medium, comprising means for wiping the discharge face of the ink jet head for recording, and means for absorbing the ink discharged from said ink jet head, wherein the driving of said wiping means is linked with the driving of said absorbing means.
Claim 13
Dependent Claim
19 words
An apparatus according to claim 9, wherein said wiping means is composed of a plate-shaped or chip-shaped rubber blade.
Claim 14
Dependent Claim
35 words
An apparatus according to claim 9, wherein said ink absorbing means is composed of an ink absorbing member, which has means for applying to or detaching from the discharge face of the ink jet head.
Claim 15
Dependent Claim
32 words
An apparatus according to claim 9, wherein said wiping means is driven in linkage with the detaching operation of said ink absorbing member from the discharge face of said ink jet head.
Claim 16
Dependent Claim
64 words
An ink jet recording apparatus for forming a record by discharging ink from a discharge port toward a face of a recording medium, provided with means for wiping the discharge face of an ink jet head for said recording and means for absorbing the ink discharged from said ink jet head, wherein said wiping means serves also as means for squeezing said absorbing means.
Claim 17
Dependent Claim
64 words
An ink jet recording apparatus for forming a record by discharging ink from a discharge port toward a face of a recording medium, provided with means for wiping the discharge face of an ink jet head for said recording and means for absorbing the ink discharged from said ink jet head, wherein said wiping means serves also as means for squeezing said absorbing means.
Claim 18
Dependent Claim
19 words
An apparatus according to claim 13, wherein said wiping means is composed of a plate-shaped or chip-shaped rubber blade.
Claim 19
Dependent Claim
35 words
An apparatus according to claim 13, wherein said ink absorbing means is composed of an ink absorbing member, which has means for applying to or detaching from the discharge face of the ink jet head.
Claim 20
Dependent Claim
36 words
An apparatus according to claim 13, wherein said wiping and said ink absorbing means are driven in linkage with the detaching operation of said ink absorbing member from the discharge face of said ink jet head.
Claim 21
Dependent Claim
64 words
An ink jet recording apparatus for forming a record by discharging ink from a discharge port toward a face of a recording material, comprising a case integrally supporting said ink jet head, ink jet head support means, ink jet head moving means, an ink jet head recovery unit and drive means for said recovery unit, said integral casing is detachable from the present apparatus.
Claim 22
Dependent Claim
64 words
An ink jet recording apparatus for forming a record by discharging ink from a discharge port toward a face of a recording material, comprising a case integrally supporting said ink jet head, ink jet head support means, ink jet head moving means, an ink jet head recovery unit and drive means for said recovery unit, said integral casing is detachable from the present apparatus.
Claim 23
Dependent Claim
34 words
An apparatus according to claim 17, wherein said ink jet head and said head recovery unit are capable of mutual displacement and respectively have a recovery position, a retracted position and a printing position.
Claim 24
Dependent Claim
34 words
An apparatus according to claim 17, wherein said ink jet head moving means is rotatable about a center of rotation, and is stoppable at a recovery position, a retracted position or a printing position.
Claim 25
Dependent Claim
47 words
An ink jet recording apparatus provided with transport means for transporting a recording sheet to a recording head unit for image recording by liquid discharge, and cleaning means for cleaning the surface of said transport means, wherein ink is discharged onto the surface of said transport means.
Claim 26
Dependent Claim
47 words
An ink jet recording apparatus provided with transport means for transporting a recording sheet to a recording head unit for image recording by liquid discharge, and cleaning means for cleaning the surface of said transport means, wherein ink is discharged onto the surface of said transport means.
Claim 27
Dependent Claim
16 words
An apparatus according to claim 20, wherein said ink discharge is conducted between successive recording sheets.
References Cited (Backward Citations)
No citation records indexed.
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