Patent EP0348234A2 successfully refreshed from Google Patents.
EP0348234A2
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Ink-jet recording apparatus
Assignee: Canon Inc
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Filing: 1989-06-23
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Granted: —
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Expires: 2009-06-23
Abstract
Abstract An ink-jet recording apparatus comprises recording means (1) for recording an image on a recording medium; image reader means (2) for reading the image; cmparing means (3) for comparing a recording signal input from the recording means (1) and an image signal input from the image reader means (2); determination means (4) for diagnosing an ink injection state of a recording head nozzle and determining an ink injection recovery processing method on the basis of the comparison result of the comparing means (3); and processing means (5) for performing ink injection recovery processing based on the determination result of the determination means (4).
Inventors
- 👤 Ryuichi Ebinuma
- 👤 Yuji Chiba
- 👤 Nobutoshi Mizusawa
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 18:27
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/17; B41J2/19; B41J2/135; B41J2/165; B41J2/16579; B41J2202/00; B41J2202/01; B41J2202/12
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
94 words
An ink-jet recording apparatus comprising: recording means for recording an image on a recording medium; image reader means for reading the image; comparing means for comparing a recording signal input from said recording means and an image signal input from said image reader means; determination means for diagnosing an ink injection state of a recording head nozzle and determining an ink injection recovery processing method on the basis of the comparison result of said comparing means; and processing means for performing ink injection recovery processing based on the determination result of said determination means.
Claim 2
Dependent Claim
94 words
An ink-jet recording apparatus comprising: recording means for recording an image on a recording medium; image reader means for reading the image; comparing means for comparing a recording signal input from said recording means and an image signal input from said image reader means; determination means for diagnosing an ink injection state of a recording head nozzle and determining an ink injection recovery processing method on the basis of the comparison result of said comparing means; and processing means for performing ink injection recovery processing based on the determination result of said determination means.
Claim 3
Dependent Claim
27 words
An apparatus according to claim 1, wherein said determination means comprises a display unit for displaying the ink injection recovery processing method determined by said determination means.
Claim 4
Dependent Claim
50 words
An apparatus according to claim 1, wherein when block omission is observed based on the comparison result, said determination means determines that a bubble is produced in a common liquid chamber of the nozzle, and selects circulation of an ink to the common liquid chamber as the recovery processing method.
Claim 5
Dependent Claim
63 words
An apparatus according to claim 1, wherein when nozzle omission is observed based on the comparison result, said determination means determines that a bubble is present in the nozzle or that leakage is occurring at a nozzle opening portion, and selects compression of an ink pressure or wiping of the nozzle opening portion with an ink absorbing body as the recovery processing method.
Claim 6
Dependent Claim
46 words
An apparatus according to claim 1, wherein when offset is observed by said comparing means, said determination means determines that leakage is occurring at a nozzle opening portion, and selects wiping of the nozzle opening portion with an ink absorbing body as the recovery processing method.
Claim 7
Dependent Claim
40 words
An apparatus according to claim 1, wherein when blurring is observed by said comparing means, said determination means determines that an ink viscosity at the nozzle is increased, and selects compression of an ink pressure as the recovery processing method.
Claim 8
Dependent Claim
51 words
A recording apparatus comprising: means for recording an image on a medium; means for performing a plurality of different types of recovery operations on the recording means; means for reading an image recorded on the medium; and means for determining from the read image an appropriate one of the recovery operations.
Claim 9
Dependent Claim
51 words
A recording apparatus comprising: means for recording an image on a medium; means for performing a plurality of different types of recovery operations on the recording means; means for reading an image recorded on the medium; and means for determining from the read image an appropriate one of the recovery operations.
References Cited (Backward Citations)
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