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1. (WO2018003533) PRINTER AND IMAGE CORRECTION METHOD
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Pub. No.: WO/2018/003533 International Application No.: PCT/JP2017/022219
Publication Date: 04.01.2018 International Filing Date: 15.06.2017
IPC:
B41J 2/52 (2006.01) ,B41J 2/01 (2006.01) ,B41J 29/393 (2006.01) ,H04N 1/40 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
41
PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
J
TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
2
Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
52
Arrangement for printing a discrete number of tones, not covered by group B41J2/205102
B PERFORMING OPERATIONS; TRANSPORTING
41
PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
J
TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
2
Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
005
characterised by bringing liquid or particles selectively into contact with a printing material
01
Ink jet
B PERFORMING OPERATIONS; TRANSPORTING
41
PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
J
TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
29
Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
38
Drives, motors, controls, or automatic cut-off devices for the entire printing mechanism
393
Devices for controlling or analysing the entire machine
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
N
PICTORIAL COMMUNICATION, e.g. TELEVISION
1
Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
40
Picture signal circuits
Applicants:
京セラ株式会社 KYOCERA CORPORATION [JP/JP]; 京都府京都市伏見区竹田鳥羽殿町6番地 6, Takeda Tobadono-cho, Fushimi-ku, Kyoto-shi Kyoto 6128501, JP
Inventors:
船津 陽平 FUNATSU Yohei; JP
Agent:
杉村 憲司 SUGIMURA Kenji; JP
Priority Data:
2016-12743628.06.2016JP
Title (EN) PRINTER AND IMAGE CORRECTION METHOD
(FR) IMPRIMANTE ET PROCÉDÉ DE CORRECTION D'IMAGE
(JA) 印画装置及び画像補正方法
Abstract:
(EN) This printer (1) is provided with a printing unit (14) having multiple printing elements (181) for printing dots, and a control unit (10) which controls the printing unit (14) on the basis of input image data. The control unit (10) acquires a pre-correction print density, which is based on test pattern data that includes a uniform pixel array, and printing characteristics of the print position of dots printed by the printing elements (181). The control unit (10) calculates a target density by averaging the pre-correction print density, and offsets the target density so that the target density is greater than or equal to the pre-correction print density. The control unit (10) calculates a correction gain of the printing elements (181) on the basis of the ratio of the target density to the pre-correction print density and controls the printing unit (14) on the basis of the correction gain and the input image data.
(FR) L'invention concerne une imprimante (1) comportant une unité d'impression (14) ayant de multiples éléments d'impression (181) servant à imprimer des points, et une unité de commande (10) qui commande l'unité d'impression (14) en fonction des données d'image d'entrée. L'unité de commande (10) acquiert une densité d'impression de pré-correction, qui est basée sur des données de motif de test qui comprennent un réseau de pixels uniformes, et des caractéristiques d'impression de la position d'impression des points imprimés par les éléments d'impression (181). L'unité de commande (10) calcule une densité cible en effectuant la moyenne de la densité d'impression de pré-correction, et décale la densité cible de telle sorte que la densité cible est supérieure ou égale à la densité d'impression de pré-correction. L'unité de commande (10) calcule un gain de correction des éléments d'impression (181) en fonction du rapport entre la densité cible et la densité d'impression de pré-correction et commande l'unité d'impression (14) en fonction du gain de correction et des données d'image d'entrée.
(JA) 印画装置(1)は、ドットを印画する複数の印画素子(181)を有する印画部(14)と、入力画像データに基づいて、印画部(14)を制御する制御部(10)とを備える。制御部(10)は、一様な画素の配列を含むテストパターンデータと、印画素子(181)のドットの印画位置の印画特性とに基づく補正前印画濃度を取得する。制御部(10)は、補正前印画濃度を平均化した目標濃度を算出し、目標濃度が補正前印画濃度以上となるように目標濃度をオフセットする。制御部(14)は、補正前印画濃度に対する目標濃度の比に基づいて、印画素子(181)の補正ゲインを算出し、補正ゲインと入力画像データとに基づいて印画部(14)を制御する。
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)