EP0351754A2
Expired / Lapsed
EP
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Apparatus and method for printing halftone images by thermal transfer
Assignee: Canon Inc
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Filing: 1989-07-17
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Granted: —
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Expires: 2009-07-17
Abstract
Abstract A recording apparatus for performing recording on a recording medium (301, 302) includes a mounting unit, a discriminating unit (135, 136), a recording unit (130), and a control unit. The mounting unit detachably mounts an ink sheet (132a, b), the discriminating unit discriminates a kind of ink sheet mounted in the mounting unit. The recording unit performs recording on the recording medium and has a plurality of recording elements. The control control unit performs drive control of the recording elements on the basis of a discrimination result of the discriminating unit.
Inventors
- 👤 Yoshiyuki Mizoguchi
- 👤 Yoshitaka Watanabe
- 👤 Koichi Tanno
- 👤 Keiichi Ikeda
- 👤 Ikumasa Ikeda
- 👤 Hideaki Kawamura
- 👤 Hideo Hiruzu Misato 108 Takiguchi
- 👤 Jun Kawai
- 👤 Mayumi Yamamoto
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 20:20
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/40; H04N1/40025; H04N1/4005; H04N1/23; H04N1/2307; H04N1/2323; H04N1/40031
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
74 words
A recording apparatus for performing recording on a recording medium, comprising: a mounting unit for detachably mounting an ink sheet; discriminating means for discriminating a kind of ink sheet mounted in said mounting unit; recording means for performing recording on said recording medium, said recording means including a plurality of recording elements; and control means for performing drive control of said recording elements on the basis of a discrimination result of said discriminating means.
Claim 2
Dependent Claim
74 words
A recording apparatus for performing recording on a recording medium, comprising: a mounting unit for detachably mounting an ink sheet; discriminating means for discriminating a kind of ink sheet mounted in said mounting unit; recording means for performing recording on said recording medium, said recording means including a plurality of recording elements; and control means for performing drive control of said recording elements on the basis of a discrimination result of said discriminating means.
Claim 3
Dependent Claim
55 words
An apparatus according to claim 1, wherein when a fusible ink sheet is mounted, said control means divides input data of one picture element into a plurality of dots corresponding heating elements of a thermal head and determines a harmonization level of each dot in accordance with a harmonization level of the input picture element.
Claim 4
Dependent Claim
49 words
An apparatus according to claim 1, wherein when a sublimable ink sheet is mounted, said control means assigns a plurality of dots to input data of one picture element and determines harmonization levels of said plurality of dots in accordance with a harmonization level of the picture element data.
Claim 5
Dependent Claim
185 words
A thermal recording apparatus for performing recording via an ink sheet by a thermal transfer method, comprising: discriminating means for discriminating whether a mounted ink sheet is a fusible ink sheet having a fusible ink or a sublimable ink sheet having a sublimable ink; first harmonization determining means for dividing input data of one picture element into a plurality of dots corresponding to heating elements of a thermal head and for determining a harmonization level of each dot in accordance with a harmonization level of the input picture element when said discriminating means discriminates that said fusible ink sheet is mounted; second harmonization determining means for assigning a plurality of dots to the input data of one picture element and determining harmonization levels of said plurality of dots in accordance with a harmonization level of the input picture element data when said discriminating means discriminates that the sublimable ink sheet is mounted; and recording means for driving said heating elements of said thermal head to perform recording in accordance with the harmonization level of each dot determined by said first and second harmonization determining means.
Claim 6
Dependent Claim
185 words
A thermal recording apparatus for performing recording via an ink sheet by a thermal transfer method, comprising: discriminating means for discriminating whether a mounted ink sheet is a fusible ink sheet having a fusible ink or a sublimable ink sheet having a sublimable ink; first harmonization determining means for dividing input data of one picture element into a plurality of dots corresponding to heating elements of a thermal head and for determining a harmonization level of each dot in accordance with a harmonization level of the input picture element when said discriminating means discriminates that said fusible ink sheet is mounted; second harmonization determining means for assigning a plurality of dots to the input data of one picture element and determining harmonization levels of said plurality of dots in accordance with a harmonization level of the input picture element data when said discriminating means discriminates that the sublimable ink sheet is mounted; and recording means for driving said heating elements of said thermal head to perform recording in accordance with the harmonization level of each dot determined by said first and second harmonization determining means.
Claim 7
Dependent Claim
69 words
An apparatus according to claim 4, wherein said plurality of dots are constituted by an n x n dot matrix, each dot of said dot matrix being set at a harmonization level of input data of one picture element when said sublimable ink sheet is to be used and having a harmonization level 1/n² that of said sublimable ink sheet when said fusible ink sheet is to be recorded.
Claim 8
Dependent Claim
91 words
A recording apparatus for recording on a recording medium, comprising: a mounting unit for detachably mounting an ink sheet; discriminating means for discriminating a kind of ink sheet mounted in said mounting unit; recording means for performing recording on said recording medium; holding means for holding said recording medium; and control means for controlling, on the basis of a discrimination result of said discriminating means, such that said recording medium of a kind corresponding to the kind of ink sheet mounted in said mounting unit is fed from said holding means.
Claim 9
Dependent Claim
91 words
A recording apparatus for recording on a recording medium, comprising: a mounting unit for detachably mounting an ink sheet; discriminating means for discriminating a kind of ink sheet mounted in said mounting unit; recording means for performing recording on said recording medium; holding means for holding said recording medium; and control means for controlling, on the basis of a discrimination result of said discriminating means, such that said recording medium of a kind corresponding to the kind of ink sheet mounted in said mounting unit is fed from said holding means.
Claim 10
Dependent Claim
91 words
A thermal recording apparatus for heating a thermal head to perform recording via an ink sheet by a thermal transfer method, comprising: discriminating means for discriminating whether said ink sheet is a sublimable ink sheet or a fusible ink sheet; first storing means for storing recording paper for said sublimable ink sheet; second storing means for storing recording paper for said fusible ink sheet; and means for feeding recording paper from said first or second storing means to a recording position in accordance with a discrimination result of said discriminating means.
Claim 11
Dependent Claim
91 words
A thermal recording apparatus for heating a thermal head to perform recording via an ink sheet by a thermal transfer method, comprising: discriminating means for discriminating whether said ink sheet is a sublimable ink sheet or a fusible ink sheet; first storing means for storing recording paper for said sublimable ink sheet; second storing means for storing recording paper for said fusible ink sheet; and means for feeding recording paper from said first or second storing means to a recording position in accordance with a discrimination result of said discriminating means.
Claim 12
Dependent Claim
107 words
A thermal recording apparatus for performing recording on a recording medium via an ink sheet by thermal transfer, comprising: discriminating means for discriminating whether a mounted ink sheet is a sublimable ink sheet or a fusible ink sheet; first memory means for storing thermal head drive information for said sublimable ink sheet; second memory means for storing thermal head drive information for said fusible ink sheet; and means for reading out the drive information from said first or second memory means in accordance with a discrimination result of said discriminating means, and driving a thermal head to perform harmonization recording on the basis of the drive information.
Claim 13
Dependent Claim
107 words
A thermal recording apparatus for performing recording on a recording medium via an ink sheet by thermal transfer, comprising: discriminating means for discriminating whether a mounted ink sheet is a sublimable ink sheet or a fusible ink sheet; first memory means for storing thermal head drive information for said sublimable ink sheet; second memory means for storing thermal head drive information for said fusible ink sheet; and means for reading out the drive information from said first or second memory means in accordance with a discrimination result of said discriminating means, and driving a thermal head to perform harmonization recording on the basis of the drive information.
Claim 14
Dependent Claim
76 words
A recording apparatus for performing recording on a recording medium, comprising: a mounting unit for detachably mounting an ink sheet; discriminating means for discriminating a kind of ink sheet mounted in said mounting unit; recording means for performing recording on said recording medium; and control means for performing control of a driving time of said recording means and a feeding speed of said recording medium on the basis of a discrimination result of said discriminating means.
Claim 15
Dependent Claim
76 words
A recording apparatus for performing recording on a recording medium, comprising: a mounting unit for detachably mounting an ink sheet; discriminating means for discriminating a kind of ink sheet mounted in said mounting unit; recording means for performing recording on said recording medium; and control means for performing control of a driving time of said recording means and a feeding speed of said recording medium on the basis of a discrimination result of said discriminating means.
References Cited (Backward Citations)
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