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EP0201177A2
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EP
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Ink jet recording apparatus
Assignee: Toshiba Corp
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Filing: 1986-03-25
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Granted: —
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Expires: 2006-03-25
Abstract
Abstract An ink-jet recording apparatus includes a film (44) having a number of holes (44a) for holding ink. The film is driven in a predetermined direction near a recording paper (16). ink is supplied to the holes by an ink supply mechanism (52). Ink in desired holes are heated by a thermal head (50) to be ejected onto the recording paper. The thermal head is supported by a bimorph cell (56). In accordance with a voltage supplied from a voltage generator, the bimorph cell exponds or contracts to move the thermal head between a first position wherein the thermal head is adjacent to the recording paper and in contact with the film and a second position wherein the thermal head is separated from the recording paper and film.
Inventors
- 👤 Yuji C/O Patent Division K.K. Toshiba Suzuki
- 👤 Syunsuke C/O Patent Division K.K. Toshiba Hattori
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-06 15:05
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/135; B41J2/14; B41J2/14016; B41J2/14161
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
177 words
An ink-jet recording apparatus which records data on a recording surface of a recording medium in accordance with input recording data, comprising: a film having a plurality of ink holding portions; drive means for driving said film in a predetermined direction near the recording surface of said recording medium; an ink supply mechanism for supplying ink to said ink holding portions of said film; and a thermal head for heating desired ink holding portions to eject ink in the heated ink holding portions onto the recording surface; characterized by further comprising: signal supply means (58) for generating a position control signal in accordance with the input recording data; and a supporting mechanism for supporting said thermal head (50) and for moving said thermal head between a first position at which said thermal head is adjacent to the recording surface and is in contact with said film (44), and a second position at which said thermal head is separated from the recording surface and film in accordance with the position control signal generated from said signal supply means.
Claim 2
Dependent Claim
177 words
An ink-jet recording apparatus which records data on a recording surface of a recording medium in accordance with input recording data, comprising: a film having a plurality of ink holding portions; drive means for driving said film in a predetermined direction near the recording surface of said recording medium; an ink supply mechanism for supplying ink to said ink holding portions of said film; and a thermal head for heating desired ink holding portions to eject ink in the heated ink holding portions onto the recording surface; characterized by further comprising: signal supply means (58) for generating a position control signal in accordance with the input recording data; and a supporting mechanism for supporting said thermal head (50) and for moving said thermal head between a first position at which said thermal head is adjacent to the recording surface and is in contact with said film (44), and a second position at which said thermal head is separated from the recording surface and film in accordance with the position control signal generated from said signal supply means.
Claim 3
Dependent Claim
62 words
An apparatus according to claim 1, characterized in that said supporting mechanism has a bimorph cell (56 or 66) which supports said thermal head (50) and receives a voltage to deform by an amount corresponding thereto, and said signal supply means (58) has a voltage generator (64) for applying a voltage to said bimorph cell in accordance with the input recording data.
Claim 4
Dependent Claim
59 words
An apparatus according to claim 2, characterized in that said signal supply means (58) has means (62) for supplying a control signal to said voltage generator (64) to generate a voltage so that said bimorph cell (56 or 66) deviates to move said thermal head (50) to the second position when the input recording data is at "0" level.
Claim 5
Dependent Claim
60 words
An apparatus according to claim 2, characterized in that said signal supply means (58) has means (62) for supplying a control signal to said voltage generator to generate a voltage corresponding to a level of the input recording data so that said thermal head (50) is moved to a position corresponding to the level between the first and second positions.
Claim 6
Dependent Claim
70 words
An apparatus according to claim 1, characterized by further comprising a tension mechanism (48) for giving a predetermined tension to said film (44) so that said film is moved to separate from said recording medium (16) in a state characterized in that said film is in contact with said thermal head (50) while said thermal head is moved from the first position to a position immediately before the second position.
Claim 7
Dependent Claim
94 words
An apparatus according to claim 1, characterized in that said drive means comprises a carriage (30) which is movable with facing the recording surface of said recording medium (16) and supports said supporting mechanism and said ink supply mechanism (52), a pair of reel drive shafts (34a, 34b) rotatably supported by said carriage, a motor (36) which is fixed to said carriage and rotate said reel drive shafts, and a pair of reels (41a, 41b) engaged with said reel drive shafts, and said film (44) is wound around said reels in an endless manner.
Claim 8
Dependent Claim
68 words
An apparatus according to claim 6, characterized by further comprising a tension mechanism (48) for giving predetermined tension to said film (44) so that said film is moved to separate from said recording medium in a state characterized in that said film is in contact with said thermal head (50) while said thermal head is moved from the first position to a position immediately before the second position.
Claim 9
Dependent Claim
57 words
An apparatus according to claim 7, characterized in that said tension mechanism includes a guide roller (42b) engaged with said film (44) and arranged on said carriage (30) to be rotatable and movable in a predetermined direction, and a biasing member for biasing said guide roller in the predetermined direction to give a tension to said film.
Claim 10
Dependent Claim
25 words
An apparatus according to claim 1, characterized in that said ink holding portions have a large number of small holes (44a) formed in said film.
Claim 11
Dependent Claim
22 words
An apparatus according to claim 1, characterized in that said supporting mechanism has a voice coil motor (68) supporting said thermal head.
References Cited (Backward Citations)
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