EP0533486A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Serial recording system capable of varying resolution
Assignee: Canon Inc
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Filing: 1992-09-18
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Granted: —
•
Expires: 2012-09-18
Abstract
Abstract A recording apparatus for recording an image on a recording medium by scanning a recording head (90), includes a scan unit for scanning the recording head by changing the scan speed of the recording head, and a control unit for controlling the scan unit to change the scan speed of the recording head (90) according to the resolution of image data to be recorded by the recording head (90) so as to perform recording. A recording controller for controlling the recording apparatus is also disclosed.
Inventors
- 👤 Naoshi C/O Canon Kabushiki Kaisha Inoue
- 👤 Kiyoharu C/O Canon Kabushiki Kaisha Yoshioka
- 👤 Hiroyuki C/O Canon Kabushiki Kaisha Kuriyama
- 👤 Soji C/O Canon Kabushiki Kaisha Hamano
- 👤 Akihiko C/O Canon Kabushiki Kaisha Hamamoto
- 👤 Makoto C/O Canon Kabushiki Kaisha Hinohara
- 👤 Osamu C/O Canon Kabushiki Kaisha Yamada
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 03:01
CPC Classifications
B; B41; B41J; B41J19/00; B41J19/18; B41J19/20; B41J19/202; B41J2/00; B41J2/485; B41J2/505; B41J2/5056; G; G06; G06K; G06K15/00; G06K15/02; G06K15/10; G06K2215/00; G06K2215/0002; G06K2215/0062; G06K2215/0071
Claims Analysis
Total Claims: 52
Claim 1
Independent Claim
69 words
A recording apparatus for recording an image on a recording medium by scanning a recording head, comprising: scan means for scanning said recording head by changing a scan speed of said recording head; and control means for controlling said scan means to change the scan speed of said recording head according to a resolution of image data to be recorded by said recording head so as to perform recording.
Claim 2
Dependent Claim
69 words
A recording apparatus for recording an image on a recording medium by scanning a recording head, comprising: scan means for scanning said recording head by changing a scan speed of said recording head; and control means for controlling said scan means to change the scan speed of said recording head according to a resolution of image data to be recorded by said recording head so as to perform recording.
Claim 3
Dependent Claim
37 words
An apparatus according to claim 1, wherein said control means determines the scan speed of said recording head according to a ratio of the resolution of the image data to an original resolution of said recording apparatus.
Claim 4
Dependent Claim
30 words
An apparatus according to claim 1, wherein said control means determines the scan speed of said recording head according to frequency characteristics of a motor for driving said recording motor.
Claim 5
Dependent Claim
67 words
A recording apparatus for recording an image on a recording medium by scanning a recording head, comprising: recording means for performing recording by changing a driving frequency of said recording head; and control means for controlling said recording means to change the driving frequency of said recording head according to a resolution of image data to be recorded by said recording head so as to perform recording.
Claim 6
Dependent Claim
67 words
A recording apparatus for recording an image on a recording medium by scanning a recording head, comprising: recording means for performing recording by changing a driving frequency of said recording head; and control means for controlling said recording means to change the driving frequency of said recording head according to a resolution of image data to be recorded by said recording head so as to perform recording.
Claim 7
Dependent Claim
37 words
An apparatus according to claim 4, wherein said control means determines the driving frequency of said recording head according to a ratio of the resolution of the image data to an original resolution of said recording apparatus.
Claim 8
Dependent Claim
33 words
An apparatus according to claim 4, wherein upper and lower limit values of the driving frequency of said recording head are determined based on a recording dot size or a recording dot shape.
Claim 9
Dependent Claim
108 words
A recording control apparatus for controlling a recording apparatus for recording an image on a recording medium by scanning a recording head, wherein said recording apparatus comprises recording means for performing recording by changing at least one of a scan speed of said recording head and a driving frequency of said recording head, comprising: discrimination means for discriminating a resolution of image data to be recorded by said recording apparatus; and control means for controlling to perform recording by changing at least one of the scan speed and the driving frequency of said recording head of said recording apparatus according to the resolution discriminated by said discrimination means.
Claim 10
Dependent Claim
108 words
A recording control apparatus for controlling a recording apparatus for recording an image on a recording medium by scanning a recording head, wherein said recording apparatus comprises recording means for performing recording by changing at least one of a scan speed of said recording head and a driving frequency of said recording head, comprising: discrimination means for discriminating a resolution of image data to be recorded by said recording apparatus; and control means for controlling to perform recording by changing at least one of the scan speed and the driving frequency of said recording head of said recording apparatus according to the resolution discriminated by said discrimination means.
Claim 11
Dependent Claim
99 words
A recording apparatus for receiving recording data, and recording an image based on the recording data on a recording medium by scanning a recording head, comprising: pitch changing means for changing a recording pitch in a scan direction of said recording head by changing a frequency for driving said recording head on the basis of the recording data; discrimination means for discriminating a resolution switching position in image data to be recorded by a single scan operation of said recording head; and control means for controlling said pitch changing means according to the discrimination result of said discrimination means.
Claim 12
Dependent Claim
99 words
A recording apparatus for receiving recording data, and recording an image based on the recording data on a recording medium by scanning a recording head, comprising: pitch changing means for changing a recording pitch in a scan direction of said recording head by changing a frequency for driving said recording head on the basis of the recording data; discrimination means for discriminating a resolution switching position in image data to be recorded by a single scan operation of said recording head; and control means for controlling said pitch changing means according to the discrimination result of said discrimination means.
Claim 13
Dependent Claim
28 words
An apparatus according to claim 8, wherein said discrimination means discriminates the resolution switching position on the basis of resolution designation information added to the input recording data.
Claim 14
Dependent Claim
92 words
A recording apparatus for receiving recording data, and recording an image based on the recording data on a recording medium by scanning a recording head, comprising: pitch changing means for changing a recording pitch in a scan direction of said recording head by changing a scan speed of said recording head; discrimination means for discriminating a resolution switching position in image data to be recorded by a single scan operation of said recording head; and control means for controlling said pitch changing means according to the discrimination result of said discrimination means.
Claim 15
Dependent Claim
92 words
A recording apparatus for receiving recording data, and recording an image based on the recording data on a recording medium by scanning a recording head, comprising: pitch changing means for changing a recording pitch in a scan direction of said recording head by changing a scan speed of said recording head; discrimination means for discriminating a resolution switching position in image data to be recorded by a single scan operation of said recording head; and control means for controlling said pitch changing means according to the discrimination result of said discrimination means.
Claim 16
Dependent Claim
28 words
An apparatus according to claim 10, wherein said discrimination means discriminates the resolution switching position on the basis of resolution designation information added to the input recording data.
Claim 17
Dependent Claim
93 words
An apparatus according to claim 10, further comprising means for, when the scan speed of said recording head is changed by said pitch changing means, and when a distance between a current recording position and a start position of a target image to be recorded by changing the pitch is shorter than a moving distance of said recording head until a scan speed upon recording of the target image is reached, moving said recording head in a reverse direction by at least the moving distance from the start position of the target image.
Claim 18
Dependent Claim
108 words
A recording control apparatus for controlling a recording apparatus capable of performing recording by changing a resolution by changing a scan speed of a recording head, comprising: first recording means for recording recording data having a first resolution by scanning said recording head at a first speed; second recording means for recording recording data having a second resolution different from the first resolution by scanning said recording head at a second speed; and control means for, when recording data having different resolutions are recorded on a single scan line, controlling to perform recording by scanning said recording head a plurality of number of times on the scan line.
Claim 19
Dependent Claim
108 words
A recording control apparatus for controlling a recording apparatus capable of performing recording by changing a resolution by changing a scan speed of a recording head, comprising: first recording means for recording recording data having a first resolution by scanning said recording head at a first speed; second recording means for recording recording data having a second resolution different from the first resolution by scanning said recording head at a second speed; and control means for, when recording data having different resolutions are recorded on a single scan line, controlling to perform recording by scanning said recording head a plurality of number of times on the scan line.
Claim 20
Independent Claim
28 words
An apparatus according to any one of claims 1 to 13, wherein said recording head comprises an ink jet recording head for performing recording by ejecting an ink.
Claim 21
Dependent Claim
38 words
An apparatus according to claim 14, wherein said recording head is a recording head for ejecting an ink by utilizing heat energy, and comprises heat energy converting elements for generating heat energy to be applied to the ink.
Claim 22
Dependent Claim
96 words
A printer apparatus for recording an image on a recording medium by scanning a recording head, comprising: scan means capable of scanning said recording head by changing a scan speed of said recording head; recording means capable of performing recording by changing a driving frequency of said recording head; and control means for controlling to change at least one of the scan speed and the driving frequency according to a resolution of recording data in forward and backward paths of said recording head, so that images having different resolutions can be recorded on a single line.
Claim 23
Dependent Claim
96 words
A printer apparatus for recording an image on a recording medium by scanning a recording head, comprising: scan means capable of scanning said recording head by changing a scan speed of said recording head; recording means capable of performing recording by changing a driving frequency of said recording head; and control means for controlling to change at least one of the scan speed and the driving frequency according to a resolution of recording data in forward and backward paths of said recording head, so that images having different resolutions can be recorded on a single line.
Claim 24
Dependent Claim
23 words
An apparatus according to claim 16, wherein the resolution of the recording data is discriminated by resolution information included in the recording data.
Claim 25
Dependent Claim
13 words
An apparatus according to claim 16, wherein said recording head ejects an ink.
Claim 26
Dependent Claim
63 words
An apparatus according to claim 18, wherein said recording head comprises a plurality of ejection orifices for ejecting the ink, and heat energy generating means, arranged in correspondence with the ejection orifices, for causing a change in state due to heat in the ink, ejecting the ink from the ejection orifices on the basis of the change in state, and forming flying droplets.
Claim 27
Dependent Claim
108 words
A printer controller for controlling a printer for recording an image on a recording medium on the basis of image data by scanning a recording head, comprising: scan means capable of scanning said recording head by changing a scan speed of said recording head; conversion means for receiving the image data, and for, when a resolution of the image data is different from a resolution of said printer, converting a dot density of the image data; and control means for controlling said scan means to determine the scan speed of said recording head according to the resolution-converted image data by said conversion means so as to perform recording.
Claim 28
Dependent Claim
108 words
A printer controller for controlling a printer for recording an image on a recording medium on the basis of image data by scanning a recording head, comprising: scan means capable of scanning said recording head by changing a scan speed of said recording head; conversion means for receiving the image data, and for, when a resolution of the image data is different from a resolution of said printer, converting a dot density of the image data; and control means for controlling said scan means to determine the scan speed of said recording head according to the resolution-converted image data by said conversion means so as to perform recording.
Claim 29
Dependent Claim
41 words
A controller according to claim 20, wherein said conversion means converts the resolution of the input image data within a range of resolutions near the resolution of said printer, and allowing easy conversion without requiring thinning processing of the image data.
Claim 30
Dependent Claim
36 words
A controller according to claim 21, wherein said conversion means further determines a pixel pattern of the resolution-converted image data on the basis of a pixel pattern neara pixel undercon- sideration of the input image data.
Claim 31
Dependent Claim
13 words
A controller according to claim 20, wherein said recording head ejects an ink.
Claim 32
Dependent Claim
63 words
A controller according to claim 23, wherein said recording head comprises a plurality of ejection orifices for ejecting the ink, and heat energy generating means, arranged in correspondence with the ejection orifices, for causing a change in state due to heat in the ink, ejecting the ink from the ejection orifices on the basis of the change in state, and forming flying droplets.
Claim 33
Dependent Claim
71 words
A recording method for recording an image on a recording medium on the basis of image data by scanning a recording head, comprising the steps of: discriminating a resolution of the image data to be recorded by said recording head; scanning said recording head at a scan speed according to the discriminated resolution; and driving said recording head upon scanning of said recording head, thereby performing recording at the discriminated resolution.
Claim 34
Dependent Claim
71 words
A recording method for recording an image on a recording medium on the basis of image data by scanning a recording head, comprising the steps of: discriminating a resolution of the image data to be recorded by said recording head; scanning said recording head at a scan speed according to the discriminated resolution; and driving said recording head upon scanning of said recording head, thereby performing recording at the discriminated resolution.
Claim 35
Dependent Claim
38 words
A method according to claim 25, wherein the scanning step includes the step of scanning one line by one scan operation, and scanning said recording head at different scan speeds according to the resolution during the scan operation.
Claim 36
Dependent Claim
41 words
A method according to claim 25, wherein the scanning step includes the step of scanning one line by a plurality scan operations, and scanning said recording head at different scan speeds according to the resolution in the plurality of scan operations.
Claim 37
Dependent Claim
17 words
Amethod according to claim 27, wherein the plurality of scan operations are performed in the same direction.
Claim 38
Dependent Claim
16 words
Amethod according to claim 27, wherein the plurality of scan operations are performed in different directions.
Claim 39
Dependent Claim
26 words
Amethod according to claim 25, wherein the driving step includes the step of driving said recording head at a driving frequency according to the discriminated resolution.
Claim 40
Dependent Claim
22 words
A method according to claim 25, wherein said recording head comprises an inkjet recording head for performing recording by ejecting an ink.
Claim 41
Dependent Claim
38 words
A method according to claim 31, wherein said recording head is a recording head for ejecting an ink by utilizing heat energy, and comprises heat energy converting elements for generating heat energy to be applied to the ink.
Claim 42
Dependent Claim
70 words
A recording method for recording an image on a recording medium on the basis of image data by scanning a recording head, comprising the steps of: discriminating a resolution of the image data to be recorded by said recording head; scanning said recording head; and driving said recording head at a driving frequency according to the discriminated resolution upon scanning of said recording head, thereby performing recording at the resolution.
Claim 43
Dependent Claim
70 words
A recording method for recording an image on a recording medium on the basis of image data by scanning a recording head, comprising the steps of: discriminating a resolution of the image data to be recorded by said recording head; scanning said recording head; and driving said recording head at a driving frequency according to the discriminated resolution upon scanning of said recording head, thereby performing recording at the resolution.
Claim 44
Dependent Claim
37 words
Amethod according to claim 33, wherein the driving step includes the step of scanning one line by one scan operation, and driving said recording head at different driving frequencies according to the resolution during the scan operation.
Claim 45
Dependent Claim
41 words
Amethod according to claim 33, wherein the driving step includes the step of scanning one line by a plurality of scan operations, and driving said recording head at different driving frequencies according to the resolution during the plurality of scan operations.
Claim 46
Dependent Claim
17 words
Amethod according to claim 35, wherein the plurality of scan operations are performed in the same direction.
Claim 47
Dependent Claim
16 words
Amethod according to claim 35, wherein the plurality of scan operations are performed in different directions.
Claim 48
Dependent Claim
27 words
A method according to claim 33, wherein the scanning step includes the step of scanning said recording head at a scan speed according to the discriminated resolution.
Claim 49
Dependent Claim
22 words
A method according to claim 33, wherein said recording head comprises an inkjet recording head for performing recording by ejecting an ink.
Claim 50
Dependent Claim
38 words
A method according to claim 39, wherein said, recording head is a recording head for ejecting an ink by utilizing heat energy, and comprises heat energy converting elements for generating heat energy to be applied to the ink.
Claim 51
Dependent Claim
62 words
Apparatus for the recording of an image on a recording medium at one or more available image densities said apparatus having means responsive to the resolution of image data to be recorded so as to adjust the apparatus so that the image recorded at a or the image density when dif- ferentfrom thatofthe incoming data is notdistort- ed in size and/or shape.
Claim 52
Dependent Claim
62 words
Apparatus for the recording of an image on a recording medium at one or more available image densities said apparatus having means responsive to the resolution of image data to be recorded so as to adjust the apparatus so that the image recorded at a or the image density when dif- ferentfrom thatofthe incoming data is notdistort- ed in size and/or shape.
References Cited (Backward Citations)
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