EP0750994A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Printing device and printing method
Assignee: Fujifilm Holdings Corp
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Filing: 1996-06-26
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Granted: —
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Expires: 2016-06-26
Abstract
Abstract A printing device for printing on a supplied paper, said printing device being provided therein with ink ejecting elements for ejecting ink from ink flow paths having nozzles on its front end and formed in ink jet head, and with a controlling means for electrically controlling said ink ejecting elements, said printing device being characterized in that said controlling means is constructed such that electric controlling conditions with respect to said ink ejecting elements are varied according to types of ink used. By such a construction, it becomes possible to drive ejecting elements in an excellent driving conditions adapted to type of ink used, thereby to deliver ink onto paper in a stable manner for carrying out a good quality of printing.
Inventors
- 👤 Kunio c/o Fuji Photo Film Co. Ltd Hakkaku
- 👤 Hiroyuki c/o Alps Electric Co. Ltd. Sato
- 👤 Shuichi c/o Alps Electric Co. Ltd. Aratsu
- 👤 Hitoshi c/o Alps Electric Co. Ltd. Yauchi
- 👤 Tatsuo c/o Alps Electric Co. Ltd. Sugawara
- 👤 Koichi c/o Alps Electric Co. Ltd. Sugiyama
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-25 10:48
CPC Classifications
B; B41; B41J; B41J15/00; B41J15/04; B41J11/00; B41J11/009; B41J2/00; B41J2/005; B41J2/01; B41J2/17; B41J2/175; B41J2/17503; B41J2/17543; B41J2/195; B41J29/00; B41J29/38; B41J29/393
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
82 words
A printing device for printing on a supplied paper, said printing device being provided therein with ink ejecting elements for ejecting ink from ink flow paths having nozzles on its front end and formed in ink jet head, and with a controlling means for electrically controlling said ink ejecting elements, said printing device being characterized in that said controlling means in constructed such that electric controlling conditions with respect to said ink ejecting elements are varied according to types of ink used.
Claim 2
Dependent Claim
36 words
A printing device according to claim 1 which is characterized, in that said electric controlling means is such that image processing depending on ink ejecting number from nozzles is varied correspondingly to type of paper used.
Claim 3
Dependent Claim
123 words
A printing device according to Claim 2 which is characterized by a paper roll holding mechanism for holding said paper roll by means of holders attached to both end portions of a roll of said paper, by a holder engaging member which is movable and can be applied onto peripheral surface of one of said holders of said paper roll held by said paper roll holding mechanism, by a paper type detection unit for detecting type of said roll paper according to the position of said holder engaging member located correspondingly to outer diameter of said holder representing type of said roll paper used, and by roll paper discriminating means for discriminating type of roll paper based on said paper type detection unit.
Claim 4
Dependent Claim
44 words
A printing device according to Claim 3 which is characterized by a plurality of fixed sensors outputting each switching signals, and by state setting member for setting said respective sensors at open or close state correspondingly to stopped position of said holder engaging member.
Claim 5
Dependent Claim
82 words
A printing device according to Claim 2 which is characterized by a paper roll holding mechanism for holding said paper roll by means of holders attached to both end portions of a roll of said piper, by a paper type detection unit for detecting type of said roll paper according to color element of said holder representing type of said roll paper used, and by roll paper discriminating means for discriminating type of roll paper based on said paper type detection unit.
Claim 6
Dependent Claim
44 words
A printing device according to Claim 5 which is characterized in that said paper type detection unit is composed of sensors which discriminate at least one of two factors, i.e. color type and color concentration of color applied on peripheral surface of said holder.
Claim 7
Dependent Claim
155 words
A printing device according to Claim 2 which is characterized by a paper roll holding mechanism for holding said paper roll by means of holders attached to both end portions of a roll of said paper, by a holder engaging member which is movable and can be applied onto peripheral surface of one of said holders of said paper roll held by said paper roll holding mechanism, by first paper type detection unit for detecting type of said roll paper according to the position of said holder engaging member located correspondingly to outer diameter of said holder representing type of said roll paper used, by second paper type detection unit for detecting type of said roll paper according to color of said holder representing type of said roll paper used, and by roll paper discriminating means for discriminating type of roll paper based on both outputs of said first and second paper type detection units.
Claim 8
Dependent Claim
84 words
A printing device according to Claim 7 which is characterized in that said first paper type detection unit comprises a plurality of fixed sensors outputting each switching signals, and by state setting member for setting said respective sensors at open or close state correspondingly to stopped position of said holder engaging member, and said second paper type detection unit comprises sensors which discriminate at least one of two factors, i.e. color type and color concentration of color applied on peripheral surface of said holder.
Claim 9
Dependent Claim
61 words
A printing device according to one of Claims 3 - 8 which is characterized by a cover member which is opened when exchanging said paper roll and a driven member which is driven by said opening operation of said cover member so as to shift said holder engaging member into a retraction position where it can not engage with said holder.
Claim 10
Dependent Claim
28 words
A printing device according to one of Claims 3 - 9 which is characterized in that said holder engaging member engages with outer peripheral surface of holder body.
Claim 11
Dependent Claim
33 words
A printing device according to one of Claims 3 - 9 which is characterized in that said holder engaging member engages with outer peripheral surface of a flange formed on said holder body.
Claim 12
Dependent Claim
28 words
A printing device according to one of Claims 1 - 11 which is characterized in that different color inks are ejected from a plurality of ink ejecting heads.
Claim 13
Dependent Claim
53 words
A printing method for printing on paper wound in the form of paper roll which is characterized by the steps of storing printing conditions for a plurality of paper types, discriminating type of paper used by reading discriminating elements provided on said paper roll, and carrying out printing based on corresponding printing conditions.
Claim 14
Dependent Claim
41 words
A printing method claimed in Claim 13 which is characterized in that sad discriminating element is single, type of paper is discriminated by said single discriminating element, and printing is carried out based on printing conditions corresponding to said discriminated paper.
Claim 15
Dependent Claim
31 words
A printing method claimed in Claim 14 which is characterized in that outer diameter of at least one of said holders mounted on paper roll is used as said discriminating element.
Claim 16
Dependent Claim
32 words
A printing method claimed in Claim 14 which is characterized in that a color element of at least one of said holders mounted on paper roll is used as said discriminating element.
Claim 17
Dependent Claim
27 words
A printing method claimed in Claim 16 which is characterized in that said color element comprises at least one of color and color concentration of said holder.
Claim 18
Dependent Claim
49 words
A printing method claimed in Claim 13 which is characterized in that a plurality of said discriminating elements are used, wherein type of paper is discriminated by combination of said plurality of discriminating elements, and printing is carried out based on printing conditions corresponding to said detected paper type.
Claim 19
Dependent Claim
37 words
A printing method claimed in Claim 18 which is characterized in that said plurality of discriminating elements comprise outer diameter of at least one of holders mounted on said paper roll and color elements of said holder.
Claim 20
Dependent Claim
27 words
A printing method claimed in Claim 19 which is characterized in that said color element comprises at least one of, color and color concentration of said holder.
Claim 21
Dependent Claim
68 words
An intermediate holding mechanism having holders for charging paper roll comprising a core and roll paper wound on said core onto said printing device, said intermediate holding mechanism being characterized in that said holders are mounted concentrically on at least one end of said core, and that combination of outer diameter and color of peripheral surface of said holder is varied correspondingly to type or said roll paper.
Claim 22
Dependent Claim
29 words
Intermediate holding mechanism claimed in Claim 21 which is characterized by further auxiliary holders fitted into said holder for mounting said paper roll on said paper roll holding mechanism.
References Cited (Backward Citations)
No citation records indexed.
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