Patent US5486850A successfully refreshed from Google Patents.
US5486850A
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Ink jet recording apparatus for cleaning the recording head in accordance with the recording color
Assignee: Canon Inc
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Filing: 1994-10-21
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Granted: 1996-01-23
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Expires: 2014-10-21
Abstract
Abstract An ink jet recording apparatus is provided with a carriage carrying a recording head, and which scans both recording and non recording areas, a cleaning member contacting the recording head so as to clean a discharge port forming surface of the head, the cleaning member having plural cleaning elastic blades, and recording mode setting means for setting the apparatus' recording mode to either a first mode in which plural colors are used for recording, or a second mode where a single color is used, and which single color differs from the plural colors. The discharge port surface is cleaned by the plural blades when the first recording mode is set, and by a single such cleaning blade when the second mode is set.
Inventors
- 👤 Fumiharu Nakamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:30
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/135; B41J2/165; B41J2/16517; B41J2/16535; B41J2/16544
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
148 words
An ink jet recording apparatus comprising: a carriage carrying a recording head and scanned in both a recording area and a non-recording area; a cleaning member contacting a discharge port forming surface of said recording head for discharging an ink to clean the discharge port forming surface, said cleaning member comprising a plurality of cleaning blades, each said blade having an elasticity; and recording mode setting means for setting a first recording mode in which a plurality of colors are used for recording and a second recording mode in which a single color is used which is different from the colors of the first recording mode, wherein the discharge port forming surface is cleaned by said plurality of cleaning blades when the first recording mode is set and the discharge port forming surface is cleaned by a single said cleaning blade when the second recording mode is set.
Claim 2
Dependent Claim
148 words
An ink jet recording apparatus comprising: a carriage carrying a recording head and scanned in both a recording area and a non-recording area; a cleaning member contacting a discharge port forming surface of said recording head for discharging an ink to clean the discharge port forming surface, said cleaning member comprising a plurality of cleaning blades, each said blade having an elasticity; and recording mode setting means for setting a first recording mode in which a plurality of colors are used for recording and a second recording mode in which a single color is used which is different from the colors of the first recording mode, wherein the discharge port forming surface is cleaned by said plurality of cleaning blades when the first recording mode is set and the discharge port forming surface is cleaned by a single said cleaning blade when the second recording mode is set.
Claim 3
Dependent Claim
75 words
An ink jet recording apparatus according to claim 1, wherein said cleaning member is disposed so that an area of said cleaning member including an end edge portion thereof may bear against said discharge port forming surface of said ink jet head, and the area of said cleaning member including the end edge portion thereof moves on and relative to said discharge port forming surface while maintaining contact with said surface, whereby cleaning is accomplished.
Claim 4
Dependent Claim
20 words
An ink jet recording apparatus according to claim 1, wherein a hardness of said cleaning member is about 35°-80° (JIS).
Claim 5
Dependent Claim
20 words
An ink jet recording apparatus according to claim 1, wherein said cleaning member has a thickness between about 0.2-1.5 mm.
Claim 6
Dependent Claim
21 words
An ink jet recording apparatus according to claim 1, wherein said cleaning member has a free length between about 2-15 mm.
Claim 7
Dependent Claim
33 words
An ink jet recording apparatus according to claim 1, wherein an amount of overlap between said cleaning member and said discharge port forming surface of said recording head is between about 0.5-2 mm.
Claim 8
Dependent Claim
28 words
An ink jet recording apparatus according to claim 1, wherein said recording head discharges said ink by utilization thermal energy which is generated by an electro-thermal converting member.
Claim 9
Dependent Claim
126 words
An ink jet recording apparatus comprising: a carriage carrying a recording head and scanned in both a recording area and a non-recording area; a cleaning member contacting a discharge port forming surface of said recording head for discharging an ink to clean the discharge port forming surface, said cleaning member comprising a plurality of cleaning blades, each said blade having an elasticity; and recording mode setting means for setting a first recording mode and a second recording mode different from the first recording mode; wherein the discharge port forming surface is cleaned by said plurality of cleaning blades when the first recording mode is set and the discharge port forming surface is cleaned by a single said cleaning blade when the second recording mode is set.
Claim 10
Dependent Claim
126 words
An ink jet recording apparatus comprising: a carriage carrying a recording head and scanned in both a recording area and a non-recording area; a cleaning member contacting a discharge port forming surface of said recording head for discharging an ink to clean the discharge port forming surface, said cleaning member comprising a plurality of cleaning blades, each said blade having an elasticity; and recording mode setting means for setting a first recording mode and a second recording mode different from the first recording mode; wherein the discharge port forming surface is cleaned by said plurality of cleaning blades when the first recording mode is set and the discharge port forming surface is cleaned by a single said cleaning blade when the second recording mode is set.
Claim 11
Dependent Claim
75 words
An ink jet recording apparatus according to claim 8, wherein said cleaning member is disposed so that an area of said cleaning member including an end edge portion thereof may bear against said discharge port forming surface of said ink jet head, and the area of said cleaning member including the end edge portion thereof moves on and relative to said discharge port forming surface while maintaining contact with said surface, whereby cleaning is accomplished.
Claim 12
Dependent Claim
20 words
An ink jet recording apparatus according to claim 8, wherein a hardness of said cleaning member is about 35°80° (JIS).
Claim 13
Dependent Claim
20 words
An ink jet recording apparatus according to claim 8, wherein said cleaning member has a thickness between about 0.2-1.5 mm.
Claim 14
Dependent Claim
21 words
An ink jet recording apparatus according to claim 8, wherein said cleaning member has a free length between about 2-15 mm.
Claim 15
Dependent Claim
33 words
An ink jet recording apparatus according to claim 8, wherein an amount of overlap between said cleaning member and said discharge port forming surface of said recording head is between about 0.5-2 mm.
Claim 16
Dependent Claim
28 words
An ink jet recording apparatus according to claim 8, wherein said recording head discharges said ink by utilization thermal energy which is generated by an electro-thermal converting member.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-01-22 | 1999-07-24 | 2000-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-01-22 | 2003-07-24 | 2004-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-01-22 | 2007-07-24 | 2008-01-23 | $7700.00 | Window Closed / Lapsed |