公开(公告)号：EP4119351B1

公开(公告)日：2024-08-21

申请号：EP22180388.5

申请日：2022-06-22

IPC分类号： B41J2/355 ,  B41J2/32

CPC分类号： B41J2/3553 ,  B41J2/355 ,  B41J2/32

公开(公告)号：EP3055136B1

公开(公告)日：2018-12-26

申请号：EP14784370.0

申请日：2014-10-10

申请人： Videojet Technologies Inc.

发明人： BUXTON, Keith ,  HART, Philip ,  ELLIS, Jeremy

IPC分类号： B41J2/35 ,  B41J2/355 ,  B41J2/36

CPC分类号： B41J2/3558 ,  B41J2/35 ,  B41J2/355 ,  B41J2/3553 ,  B41J2/36

摘要： An apparatus for determining the resistance of a printing element of a print head, the apparatus comprising: a print head comprising a plurality of individually controllable printing elements connected in parallel, and a capacitor connected in parallel with the printing elements; a test voltage supply arranged to supply a test voltage to the print head; a current monitor arranged to measure the current supplied to one of the printing elements when the said one of the printing elements is connected to the test voltage supply; and a controller arranged to determine the resistance of the said one of the printing elements based upon the measured current.

公开(公告)号：EP2894037A1

公开(公告)日：2015-07-15

申请号：EP14198644.8

申请日：2014-12-17

申请人： Fujitsu Component Limited

发明人： Chiba, Masafumi

IPC分类号： B41J2/355

CPC分类号： B41J2/355 ,  B41J2/3553 ,  B41J2/3558

摘要： A method of controlling a printer includes measuring a first voltage value of a power supply of the printer before energizing heat generating elements of a print head of the printer. The method also includes calculating, by a controller of the printer, the number of heat generating elements that are simultaneously energizable based on the measured first voltage value of the power supply, an end voltage value of the power supply, an internal resistance value of the power supply, a resistance value of each of the heat generating elements, and a current value of an electric current flowing through a motor of the printer for conveying recording paper. The method further includes performing printing on the recording paper by the print head using the heat generating elements of the calculated number.

摘要翻译： 一种控制打印机的方法包括在对打印机的打印头的发热元件通电之前测量打印机的电源的第一电压值。 该方法还包括通过打印机的控制器，基于所测量的电源的第一电压值，电源的端电压值，电源的内部电阻值，计算同时激励的发热元件的数量 电源，每个发热元件的电阻值，以及流过用于输送记录纸的打印机的电动机的电流的当前值。 该方法还包括使用计算出的数量的发热元件在打印头上对记录纸执行打印。

公开(公告)号：EP2583833B1

公开(公告)日：2014-02-26

申请号：EP13151348.3

申请日：2006-10-09

申请人： Zamtec Limited

发明人： Sheahan, John Robert ,  Pulver, Mark Jackson ,  Morahan, Brian Christopher ,  Moini, Alireza ,  Gillespie, Timothy Peter ,  Webb, Michael John ,  Gannon, Marcelle Louisa ,  Brown, Brian Robert ,  Plunkett, Richard Thomas ,  North, Angus John ,  Silverbrook, Kia

IPC分类号： B41J2/32 ,  B41J2/045 ,  B41J2/35 ,  B41J2/355 ,  B41J2/365 ,  B41J2/21 ,  B41J2/155

CPC分类号： B41J2/155 ,  B41J2/0454 ,  B41J2/04541 ,  B41J2/04565 ,  B41J2/04596 ,  B41J2/2142 ,  B41J2/2146 ,  B41J2/35 ,  B41J2/3553 ,  B41J2/365

公开(公告)号：EP1658982A3

公开(公告)日：2007-10-17

申请号：EP05110204.4

申请日：2005-10-31

申请人： Samsung Electronics Co., Ltd.

发明人： Kyeong-taeg, Yang

IPC分类号： B41J2/355

CPC分类号： B41J2/3553 ,  B41J2/3555 ,  B41J2/3558

摘要： Provided is a thermal print head having a memory for storing resistance values of heaters to compensate for an energy drift of the thermal print head. The thermal print head includes a plurality of heaters for applying heat to a medium. A heater driving unit drives the heaters according to received data. A memory stores resistance values of the heaters. Accordingly, the thermal print head having the memory which stores resistance values of heaters compensates for an energy drift of the thermal print head by using the resistance values of the heaters stored in the memory without individually measuring the resistance values, and therefore can achieve uniform print quality.

公开(公告)号：EP3317109A1

公开(公告)日：2018-05-09

申请号：EP16739048.3

申请日：2016-06-30

申请人： Ingenico Group

发明人： XAVIER, Bruno ,  ZANETTI, Arnaud

IPC分类号： B41J2/35 ,  B41J2/355

CPC分类号： B41J2/3553 ,  B41J2/35 ,  B41J2/3558 ,  B41J29/393 ,  B41J2029/3932 ,  G07F17/42

摘要： The invention relates to a method for managing the printing of data by a thermal printer (4) which includes a thermal printing head (44), said thermal head (44) including a plurality of points, each point having an effective resistance r
d , said thermal printer (4) being powered by a power source. According to the invention, such a method includes the following steps: measuring (31) a voltage
U supplied by said power source of said thermal printer; measuring (32) an internal resistance r
u of said power source; and calculating (33) a time
t for heating a number n of points in accordance with said voltage
U of said power source, with said internal resistance r
u of the power source, with at least one effective resistance r
d of at least one point to be printed in order to print said data, and with at least one parasitic resistance value r
p of at least one element of said thermal printer.

公开(公告)号：EP3055136A1

公开(公告)日：2016-08-17

申请号：EP14784370.0

申请日：2014-10-10

申请人： Videojet Technologies Inc.

发明人： BUXTON, Keith ,  HART, Philip ,  ELLIS, Jeremy

IPC分类号： B41J2/35 ,  B41J2/355 ,  B41J2/36

CPC分类号： B41J2/3558 ,  B41J2/35 ,  B41J2/355 ,  B41J2/3553 ,  B41J2/36

摘要： An apparatus for determining the resistance of a printing element of a print head, the apparatus comprising: a print head comprising a plurality of individually controllable printing elements connected in parallel, and a capacitor connected in parallel with the printing elements; a test voltage supply arranged to supply a test voltage to the print head; a current monitor arranged to measure the current supplied to one of the printing elements when the said one of the printing elements is connected to the test voltage supply; and a controller arranged to determine the resistance of the said one of the printing elements based upon the measured current.

摘要翻译： 一种用于确定打印头的打印元件的电阻的装置，该装置包括：打印头，包括并行连接的多个独立可控的打印元件，以及与打印元件并联连接的电容器; 测试电压源，被配置为向打印头供应测试电压; 电流监视器，被配置为当所述一个打印元件连接到所述测试电压源时测量供应到所述打印元件之一的电流; 以及控制器，其被布置成基于所测量的电流来确定所述一个打印元件的电阻。

公开(公告)号：EP2073983A1

公开(公告)日：2009-07-01

申请号：EP06790345.0

申请日：2006-10-09

申请人： Silverbrook Research Pty. Ltd ,  Sheahan, John, Robert ,  Pulver, Mark, Jackson ,  Morahan, Brian, Christopher ,  Moini, Alireza ,  Gillespie, Timothy, Peter ,  Webb, Michael, John ,  Gannon, Marcelle, Louisa ,  Brown, Brian, Robert ,  Plunkett, Richard Thomas ,  North, Angus, John ,  Silverbrook, Kia

发明人： SHEAHAN, John, Robert ,  PULVER, Mark, Jackson ,  MORAHAN, Brian, Christopher ,  MOINI, Alireza ,  GILLESPIE, Timothy, Peter ,  WEBB, Michael, John ,  GANNON, Marcelle, Louisa ,  BROWN, Brian, Robert ,  PLUNKETT, Richard, Thomas ,  NORTH, Angus, John ,  SILVERBROOK, Kia

IPC分类号： B41J2/32

CPC分类号： B41J2/155 ,  B41J2/0454 ,  B41J2/04541 ,  B41J2/04565 ,  B41J2/04596 ,  B41J2/2142 ,  B41J2/2146 ,  B41J2/35 ,  B41J2/3553 ,  B41J2/365

摘要： A printhead IC comprising:an array of nozzles;an ejection actuator corresponding to each of the nozzles respectively, the ejection actuator having a resistive heater that is activated when the actuator ejects ink through the corresponding nozzle;drive circuitry for receiving print data and activating the actuators with drive signals in accordance with the print data; and,open actuator test circuitry for selectively disabling the actuators when they receive a drive signal while comparing the resistance of the resistive heater to a predetermined threshold to assess whether the actuator is defective.

公开(公告)号：EP1655138A3

公开(公告)日：2007-10-17

申请号：EP05110238.2

申请日：2005-11-01

申请人： Samsung Electronics Co., Ltd.

发明人： Im, Dae-hyeok

IPC分类号： B41J2/355 ,  B41J2/37 ,  B41J2/36

CPC分类号： B41J2/3553 ,  B41J2/3558

摘要： Provided are a method and apparatus for compensating for an energy difference in a thermal print head that prints an image by heating a medium. The method includes measuring a direct current voltage of an adapter that applies a voltage to a heating unit when power is supplied to an image forming apparatus, and adjusting heating time of the heating unit using the measured direct current voltage. Accordingly, it is possible to obtain an even distribution of the optical density of an image without an additional voltage adjustment unit or manually compensating for the energy difference.

摘要翻译： 提供了一种用于补偿通过加热介质来打印图像的热打印头中的能量差的方法和设备。 该方法包括测量当向成像装置供电时向加热单元施加电压的适配器的直流电压，并且使用测量的直流电压来调节加热单元的加热时间。 因此，可以获得图像的光密度的均匀分布而无需额外的电压调节单元或手动补偿能量差。

公开(公告)号：EP2583833A1

公开(公告)日：2013-04-24

申请号：EP13151348.3

申请日：2006-10-09

申请人： Zamtec Limited

发明人： Sheahan, John Robert ,  Pulver, Mark Jackson ,  Morahan, Brian Christopher ,  Moini, Alireza ,  Gillespie, Timothy Peter ,  Webb, Michael John ,  Gannon, Marcelle Louisa ,  Brown, Brian Robert ,  Plunkett, Richard Thomas ,  North, Angus John ,  Silverbrook, Kia

IPC分类号： B41J2/32 ,  B41J2/045 ,  B41J2/35 ,  B41J2/355 ,  B41J2/365 ,  B41J2/21 ,  B41J2/155

CPC分类号： B41J2/155 ,  B41J2/0454 ,  B41J2/04541 ,  B41J2/04565 ,  B41J2/04596 ,  B41J2/2142 ,  B41J2/2146 ,  B41J2/35 ,  B41J2/3553 ,  B41J2/365

摘要： An inkjet printer comprising: an array of nozzles arranged into rows, each row consisting of a plurality of nozzle groups, the nozzles in each group being interspersed with nozzles from the other groups; and associated drive circuitry for actuating the nozzles in the row in accordance with a firing sequence, the firing sequence enabling the nozzles in each group to eject printing fluid simultaneously, and enabling each of the groups to eject printing fluid in succession. The nozzles in each group are spaced from each other by at least a predetermined minimum number of nozzles and each of the nozzles in a group is spaced from the nozzles in the subsequently enabled group by at least the predetermined minimum number of nozzles.

摘要翻译： 一种喷墨打印机，包括：排列成行的喷嘴阵列，每排由多个喷嘴组组成，每组中的喷嘴散布有来自其它组的喷嘴; 以及相关联的驱动电路，用于根据点火顺序致动行中的喷嘴，使得每组中的喷嘴能够同时喷射打印流体的点火顺序，并且使得每个组能够连续地喷射打印流体。 每个组中的喷嘴彼此间隔至少预定的最小数量的喷嘴，并且一组中的每个喷嘴与随后启用的组中的喷嘴间隔开至少预定的最小喷嘴数量。