EP0665677A2
Expired / Lapsed
EP
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Printing system
Assignee: HP Inc
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Filing: 1995-01-26
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Granted: —
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Expires: 2015-01-26
Abstract
Abstract Different print-quality modes in a printer (56), such as a color inkjet printer, invoke different color-rendering options for a particular object (41) to be printed - in a composite document having objects (41-43) of different types. In an exemplary embodiment, a printer control automatically invokes an error-diffusion halftoning technique for photograph-like images (41) whenever a high-quality print mode is designated, and automatically invokes a dither halftoning technique for photograph-like images (41) whenever a normal or fast print mode is designated.
Inventors
- 👤 Kirt Alan Winter
- 👤 Thomas G. Smith
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-25 14:48
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/40; H04N1/405; B; B41; B41J; B41J29/00; B41J29/38; B41J29/393; G; G06; G06K; G06K15/00; G06K15/02; H04N1/46; H04N1/56; H04N1/60; H04N1/6072; G06K2215/00; G06K2215/0082; G06K2215/0094
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
137 words
A method of controlling the quality of printing a composite document including at least one object of one of a plurality of different object types, comprising the steps of providing a plurality of different selectable print modes; automatically distinguishing the object type of an object (41-43) in said document; developing a designation of at least one of a plurality of print modes and in response thereto selecting said designated print mode; in respect of the distinguished object, either: invoking a first print rendering option if said distinguished object is to be printed in a first print mode or invoking a second print rendering option if said distinguished object is to be printed in a second print mode; and automatically rendering and printing the distinguished object on the basis of the selected print mode and print rendering option.
Claim 2
Dependent Claim
36 words
A method according to claim 1, wherein the first print rendering option is invoked when a first print mode is designated and the second print rendering option is invoked when a second print mode is designated.
Claim 3
Dependent Claim
32 words
A method according to claim 2, wherein said first print mode is a high quality print mode, and said second print mode provides a higher print speed than said first print mode.
Claim 4
Dependent Claim
29 words
A method according to claim 1, 2 or 3, wherein said first and second print rendering options are invoked when the object is determined to be of photographic type.
Claim 5
Independent Claim
52 words
A method according to any preceding claim, including the step of automatically invoking a third print rendering option when the object is determined to be other than of a photographic type; said third print rendering option including an error diffusion half-toning technique, said second print rendering option including a dither half-toning technique.
Claim 6
Independent Claim
14 words
A method according to any preceding claim, wherein the print mode is selectable manually.
Claim 7
Dependent Claim
82 words
A printing system for printing a composite document including at least one object (41-43) of one of a plurality of different object types, comprising printer control means (44) including a user interface (66-99) operative to provide for the selection of a print mode from at least first and second different print modes; and colour management means (32) for invoking first and second print rendering options for an object of given object type (41) on selection of the first and second print modes.
Claim 8
Dependent Claim
21 words
A printing system according to claim 7, wherein said colour management means is operative to invoke automatically said print rendering options.
Claim 9
Dependent Claim
30 words
A printing system according to claim 7 or 8, wherein said first print rendering option includes an error diffusion technique and said second print rendering option includes a dither technique.
Claim 10
Dependent Claim
29 words
A printing system according to any one of claims 7 to 9, wherein said first and second print rendering options are half-toning techniques for printing objects of photographic type.
References Cited (Backward Citations)
No citation records indexed.
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