57 results about "Thermal Head" patented technology

This thermal head comprises a substrate, a heat-generating part, a plurality of drive ICs, a connection electrode, an insulating coating film, and a protective film. The heat-generating part is positioned on the substrate. The plurality of drive ICs are positioned on the substrate and arranged in the main scanning direction. The connection electrode is positioned on the substrate and connects adjacent drive ICs. The coating film is positioned on the heat-generating part and the connection electrode. The protective film is positioned on the coating film and faces a recording medium. The protective film has a specific resistance lower than that of the coating film. A contact part in contact with the connection electrode is provided at an end part of the protective film positioned between the heat-generating part and the drive ICs in a plan view.

To enable implementation of a printing mode of performing printing with the same electric energy and at a high speed with respect to a first printing mode.SOLUTION: A thermoelectric printer performs printing by a thermal head and at least has: a first printing mode of performing printing with a first electric power; a second printing mode of performing printing with a second electric power larger than the first electric power and at a higher speed than the first printing mode; and a third printing mode of performing printing with the first electric power and at a higher speed than the first printing mode.SELECTED DRAWING: Figure 7

The thermal head has a plurality of heat generating sections (5), a first conductor layer (15), and a second conductor layer (17). The plurality of heat generating units (5) are arranged in a first direction (D1). The resistivity of the second conductor layer (17) is lower than that of the first conductor layer (15). The first conductor layer (15) has a plurality of leads (19) and a specific wiring (21). The plurality of leads (19) extend in a second direction (D2) intersecting the first direction (D1) from the plurality of heat generating parts (5). The specific wiring (21) connects the plurality of leads (19) to each other. The second conductor layer (17) has a main portion (23) that covers at least a portion of the specific wiring (21). The specific wiring (21) overlaps a part of the length of the main portion (23) in the second direction (D2). At least one of the side edge portions on both sides of the second direction (D2) of the specific wiring (21) changes the position in the second direction (D2) in accordance with the position in the first direction (D1) in a region overlapping the main portion (23).

A control device includes: a print data acquisition unit configured to acquire print data, which is formed of a plurality of lines and indicates a coloration state of each pixel included in the plurality of lines; a head drive unit configured to supply, to a thermal head formed of a plurality of heating elements each corresponding to the pixel, an electric current for heating the thermal head for each pixel; a motor drive unit configured to supply, to a motor configured to move heat-sensitive paper relative to the thermal head, a drive current for step driving the motor for each line; a speed control unit configured to control, based on the number of colored pixels of a determination subject line among yet-to-be-printed lines of the print data, a relative moving speed of the heat-sensitive paper moved by the motor; and a preheating control unit configured to cause the head drive unit to output, when the determination subject line is a specific line being a line in which the number of colored pixels of the determination subject line exceeds a predetermined value, a preheating current being an electric current for heating the thermal head to such a degree as to prevent coloring of the heat-sensitive paper by a time the specific line is printed.

A printer is configured to print on a print medium having a thermal color developing layer and includes: a thermal head having a plurality of heating elements that are arranged in a line; and a processor configured to: set a first application period of a pulse of energizing current, during a scanning line time for one line, the pulse of energizing current applying thermal energy that causes the thermal color developing layer to develop color, to the plurality of heating elements, correct a length of the first application period, which is set by the processor, based on an image to be printed, and determine print speed to be applied in printing the whole image at a constant speed, by extending the scanning line time so as to contain a maximum length of the first application period that has been corrected by the processor.

To provide a printer and a control method capable of quickly printing even when producing high-quality printed matter. [Solution] The printer includes a thermal head, a platen roller, a motor, and a CPU. The thermal head prints on a medium. The platen roller transports the medium toward the thermal head. The motor drives the platen roller by rotating. The CPU switches the motor control mode between a first mode and a second mode. The acceleration / deceleration time in the second mode is longer than the acceleration / deceleration time in the first mode. The amount of jerk change in the second mode is smaller than the amount of jerk change in the first mode.

A printing system including a printing device and a higher-level device to transmit image data to the printing device, wherein the higher-level device includes a correction value calculation portion to calculate a correction value for correcting the image data based on a density of each line of the image data, and a transmitter to add the correction value calculated by the correction value calculation portion to the image data for each line and transmit the image data and the correction value to the printing device, and wherein the printing device includes a storage unit to associate the correction value with the image data received from the higher-level device for each line and to store the image data and the correction value, and a printing unit to perform printing by changing a time for energizing each heating element in a thermal head based on the correction value stored in the storage unit.

A printer driven by power of a battery, the printer including a thermal head including a plurality of heating elements arranged along a direction perpendicular to a conveying direction, a drive unit to supply power to the thermal head to drive the thermal head, and a processor to control driving and perform printing on the recording medium according to printing data, in which the processor calculates, based on a state of its own printer, a printing cycle related to printing of each line for the line configuring the printing data and an energization time for supplying power to the thermal head within the printing cycle, adjusts the energization time according to a characteristic difference between an internal resistance of the reference battery and an internal resistance of the battery, and prints for one line by supplying power to the drive unit during the energization time after adjustment.

To provide an image forming apparatus capable of confirming the trouble of a heating element during printing operation.SOLUTION: An image forming apparatus according to an embodiment includes a conveyance motor, a thermal head, a head drive unit, a check circuit, and a processor. The conveyance motor conveys the print medium to a print position. The thermal head includes a plurality of heating elements arranged in a printing line orthogonal to a conveying direction of the printing medium at a printing position. The head drive unit causes each heating element to generate heat according to image data for each print line of the print image. The check circuit checks a malfunction for each heating element. The processor is configured or programmed to execute the check for the operation fault using the check circuit for the heating element determined to require the check for the operation fault by the priority setting for each image region in the print image.SELECTED DRAWING: Figure 1

A printing system includes a portable terminal including a thermal head; and a host device configured to control label printing performed by the portable terminal. The host device includes a label generation module configured to generate the new label by adjusting, based on information relating to an object included in existing label data and a size of a new label, one or both of a position and a size of the object in the new label.

To effectively suppress a thermal head from being damaged by electrostatic discharge.SOLUTION: A thermal head includes: a plurality of heating elements aligned in a main scanning direction; a drive circuit part disposed in parallel to the plurality of heating elements along the main scanning direction and selectively driving the plurality of heating elements to generate heat; an electronic circuit part having wiring and a signal ground for supplying a signal to the drive circuit part; and a belt-like conductor disposed on the drive circuit part side further than the plurality of heating elements in a sub-scanning direction and arranged in parallel to the plurality of heating elements along the main scanning direction. The belt-like conductor is electrically connected to the signal ground.SELECTED DRAWING: Figure 2

A thermal printer includes a thermal head, a drive data generation unit, a clock generation unit, and a drive data supply unit. The thermal head is configured such that a large number of heating elements divided into a plurality of blocks are mounted thereon, and is configured to input drive data for driving the large number of heating elements to the plurality of blocks in parallel in synchronization with a plurality of different first clock signals. The drive data generation unit is configured to generate a plurality of pieces of drive data for each of the plurality of blocks from print data and to output the plurality of pieces of drive data in synchronization with a plurality of second clock signals. The clock generation unit is configured to generate a plurality of clock signals whose phases are shifted from each other. The drive data supply unit is configured to take in the plurality of pieces of drive data, which are output from the drive data generation unit, in synchronization with the plurality of second clock signals and to supply the plurality of pieces of drive data to the thermal head in synchronization with the plurality of first clock signals.

The present invention provides a thermal head having good thermal responsiveness, a manufacturing method of the thermal head, and a thermal printer having the thermal head. The thermal head has an insulator, a heat radiating layer on the insulator, a heat accumulating layer on the insulator and the heat radiating layer, and a heat generating resistor on the heat accumulating layer, the heat radiating layer containing a material different from that of the heat accumulating layer, at least a part of the heat radiating layer and the heat generating resistor overlapping each other as viewed in a thickness direction of the heat radiating layer.

Disclosed herein is a test handler and corresponding test system for thermally controlling a plurality of devices under test (DUTs) by use of one or more thermal heads, while they are being tested in parallel. In some embodiments, a thermal head comprises a heat exchanger assembly, a piston block assembly, and a match plate assembly. In some embodiments, each individual DUT may have its temperature controlled independently by components, such as individual heaters, within the thermal head. The test handler may comprise a T-tray loading area, a temperature pre-soak area, a testing area, a temperature de-soak area, and a JEDEC tray loading area. In some embodiments the pick and place mechanism in the T-tray loading area may change the pitch or grid location of DUTs picked from a transport medium on the fly to a different pitch or location grid to match the socket placement on the tester load board.

Disclosed herein is a test handler and corresponding test system for thermally controlling a plurality of devices under test (DUTs) by use of one or more thermal heads, while they are being tested in parallel. In some embodiments, a thermal head comprises a heat exchanger assembly, a piston block assembly, and a match plate assembly. In some embodiments, each individual DUT may have its temperature controlled independently by components, such as individual heaters, within the thermal head. The test handler may comprise a T-tray loading area, a temperature pre-soak area, a testing area, a temperature de-soak area, and a JEDEC tray loading area. In some embodiments the pick and place mechanism in the T-tray loading area may change the pitch or grid location of DUTs picked from a transport medium on the fly to a different pitch or location grid to match the socket placement on the tester load board.

This thermal head comprises a substrate, an electrode, a pair of protective layers, a drive IC, and a sealing material. The electrode is positioned on the substrate. The pair of protective layers are positioned on the substrate and the electrode and face each other in the sub-scanning direction. The drive IC is positioned between the pair of protective layers and is electrically connected to the electrode. The sealing material is positioned between the pair of protective layers and seals the drive IC. The protective layers each have a first portion positioned on the substrate and the electrode, and a second portion positioned on the first portion.

The present application provides a thermal head capable of alleviating heat concentration in the central portion of the heat generating portion, thereby improving printing efficiency. The thermal head (A1) includes a head substrate (1), a resistance layer (4) having a plurality of heat generating portions (41A) arranged in a main scanning direction (x), and a wiring layer (3) constituting a current path to the plurality of heat generating portions (41A). The wiring layer (3) includes: a first electrode portion (strip portion 321 or strip portion 313) connected to the plurality of heat generating portions (41A) respectively from one side (upstream side) of a sub-scanning direction (y), and a second electrode portion (each strip portion 331) connected to the plurality of heat generating portions (41A) respectively from the other side (downstream side) of the sub-scanning direction (y). The plurality of heat generating portions (41A) respectively include a sub-scanning central portion (421) and a pair of sub-scanning side portions (422A, 422B). The sub-scanning direction unit resistance value of the sub-scanning central portion (421) is smaller than each of the sub-scanning direction unit resistance values of the pair of sub-scanning side portions (422A, 422B).

A thermal head according to the present invention comprises a head base body and a flexible wiring board. The head base body has a first terminal. The flexible wiring board faces the head base body, and has a second terminal ultrasonically welded to the first terminal. The first terminal has a base layer and a surface layer that is positioned between the base layer and the second terminal.

Disclosed herein are thermal heads and corresponding test systems for independently controlling one or more components while testing one or more devices under test. In some embodiments, the thermal head includes multiple adapters, one or more heaters, and one or more thermal controllers for independently controlling the temperatures of the components. The thermal controllers may independently control the temperatures of at least some of the components such that thermal control of one component does not affect the thermal control of other components. In some embodiments, thermal control is performed using one or more cold plates, and the thermal head includes one or more cold plates. Embodiments of the present disclosure further include independent control of one or more forces using one or more force mechanisms.

This thermal head comprises a substrate and a connector that fits to an end part of the substrate. The connector has a plurality of connector pins which are arranged to be spaced apart in a first direction of the substrate and which fit to the end part of the substrate, and a housing which houses the plurality of connector pins. The housing has a side wall that is positioned further outward in the first direction than the plurality of connector pins and that faces a lower surface of the substrate at an end face, and an arm part that rises up from an end surface of the side wall in a region other than a region facing the lower surface of the substrate, and that extends along an upper surface of the substrate in a second direction which intersects the first direction.

The utility model provides a heat dissipation pressure head test calibration device which comprises a shell, a control assembly and a plurality of groups of test assemblies, and the control assembly and the test assemblies are arranged in the shell. Each group of test assembly comprises a heat dissipation pressure head mounting block, a heating block, a lifting structure, a temperature sensing probe, a display screen and a temperature adjusting knob which are mutually independent; a plurality of test holes in one-to-one correspondence with the heating blocks are formed in the top of the shell, and the heat dissipation pressure head mounting blocks are detachably and correspondingly mounted at the test holes; the lifting structure is arranged in the shell, the heating block is arranged on the lifting structure, the lifting structure is used for driving the heating block to ascend and descend, and the heat dissipation pressing head can abut against the heating block when installed on the heat dissipation pressing head installation block; the temperature sensing probe is arranged on the heating block, and when the heat dissipation pressing head abuts against the heating block, the temperature sensing probe makes contact with the heat dissipation pressing head. The motor control panel, the temperature sensing probe, the heating block, the display screen and the temperature adjusting knob are electrically connected with the main control panel; and the lifting structure is electrically connected with the motor control panel.

A printing apparatus, a printing control method, and a storage medium are provided. The control device (40) of the printing apparatus (10) sets a set of adhesion countermeasure target dot groups that includes at least the second dot group when the following conditions are met: the proportion of printing areas with a first concentration or higher in the first dot group is a first threshold or higher; and the comparison result between the printing areas with a first concentration or higher in the first dot group and the printing areas with a second concentration lower than the first concentration in the subsequent second dot group is a second threshold or higher. In addition to the first power-on control period (TA) for printing on the printed medium (20), the control device sets a second power-on control period (TB) for adjusting the temperature change of the thermal head (30) without printing on the printed medium, and generates countermeasure data for energizing at least a portion of a plurality of heating elements during the second power-on control period of each dot group in the set of adhesion countermeasure target dot groups.

To improve the noise immunity of the thermal head in printers. [Solution] A printer according to one aspect of the present invention comprises a thermal head having a heating section having a plurality of heating elements arranged in a line, a drive circuit that drives the heating section to control whether or not to energize each heating element of the heating section during the energizing period based on a signal indicating the energizing period of the heating section during the printing period of one line, and a control unit that controls the drive circuit to perform a stop process to reset the drive circuit by stopping the supply of an operating voltage for operating the drive circuit for a predetermined period.

According to various aspects of the present disclosure, a semiconductor testing equipment may include a thermal head assembly having a body with a recess that is unobstructed and designed to fit over a die on the semiconductor package. A sealing member on the thermal head assembly engages a landing area on the semiconductor package to form a sealed chamber. The semiconductor package may be uniformly loaded by introducing a gas and incrementally increasing the gas pressure in the sealed chamber and increasing mechanical load on the sealing member onto the landing area to prevent leakage. Once the sealed chamber is fully sealed, the combined internal pressure from the circulating gas and a sealing perimeter load enables the proper socketing of the semiconductor package. Thereafter, the gas may be replaced with a circulating liquid refrigerant to remove the heat generated by the die during the testing of the semiconductor package.

To provide a thermal printer capable of adjusting a pressing force by a simple method.SOLUTION: The thermal printer includes the thermal head 510 rotatably supported by the printer unit, the platen roller 520 disposed to face the thermal head 510 and configured to convey the recording paper, the pressing member 610 provided on the side opposite to the platen roller 520 with respect to the thermal head 510 and configured to press the thermal head 510 toward the platen roller 520, the support member 620 provided on the side opposite to the thermal head 510 with respect to the pressing member 610, and the pressing force adjustment member 630 disposed between the support member 620 and the pressing member 610 and configured to adjust the pressing force of the pressing member 610.SELECTED DRAWING: Figure 4

The invention discloses a printer which comprises a thermal head, a printing roller, a rack, a connecting piece and an elastic piece. The thermal head and the printing roller abut against each other in the vertical direction. The rack is provided with two side frames and a connecting frame, the two side frames are arranged in the left-right direction to support the printing roller, and the connecting frame is connected with the two side frames; the connecting piece is provided with a connecting wall and two side walls, the connecting wall is connected with the two side walls, a first wall and a second wall which extend in the left-right direction are arranged on the connecting wall in the front-back direction, the first wall and the second wall incline relative to the up-down direction, and an included angle is formed between the first wall and the second wall on the cross section perpendicular to the left-right direction. The side wall is arranged corresponding to the side frame and is provided with a first side part connected with the first wall and a second side part connected with the second wall, and the first side part and the second side part are connected with each other and are fixedly connected to the side frame respectively; the first end of the elastic piece abuts against the connecting wall, and the second end of the elastic piece abuts against the thermal head. By the adoption of the technical scheme, the problem that the printing medium is uneven in density in the left-right direction is not prone to occurring.

This thermal head comprises: a substrate; a heat storage layer; a heat generation part; and a covering layer. The heat storage layer is positioned above the substrate. The heat generation part is positioned above the heat storage layer. The covering layer is positioned above the heat storage layer and the heat generation part and faces a recording medium. The covering layer has: a first region positioned above the heat generation part; a second region adjacent to the first region in a sub-scanning direction; and a third region positioned on the opposite side of the second region from the first region. The surface roughness of the second region is greater than that of the first region. The surface roughness of the third region is greater than that of the second region.

A portable terminal has a thermal head. The portable terminal includes a first sensor unit configured to detect presence or absence of a sheet, a second sensor unit configured to detect information related to a mark provided on the sheet, and a sheet determination unit configured to determine a kind of the sheet. The sheet determination unit is configured to determine a kind of the sheet based on a result of detecting information related to the mark with use of the second sensor unit after the sheet is conveyed in a reverse direction with respect to a direction of discharging the sheet.

To provide a printer that can be reduced in size and can facilitate the laying of wiring.SOLUTION: A thermal printer 1 includes: a cover portion 3 provided on a main body portion 2; a thermal head that performs printing on a label 42 pulled out from rolled paper R; a platen roller 74 that conveys the label 42 while pressing the label against the thermal head; a first sensor 6 that detects a print start position; a second sensor 86 that detects an open / closed state of the cover portion 3; and a control board 5 to which the thermal head, the first sensor 6, and the second sensor 86 are connected. The first sensor 6 is an optical sensor. The second sensor 86 is an optical sensor that shares a flexible substrate 72 with the thermal head.SELECTED DRAWING: Figure 4

An embodiment of the present invention provides a printer configured to print on a print medium. The printer includes a thermal head and a control unit. The thermal head has a plurality of heating elements that are arranged in a line. The control unit is configured to control thermal energy to be applied to the plurality of heating elements, in accordance with information based on image data. The information includes whether to apply a pulse of energizing current in each of a plurality of periods being preset during a scanning line time for one line. The plurality of periods is set in an order from a long period to a short period during the scanning line time.