202 results about "Thermal printing" patented technology

The invention discloses a thermal printing image processing method, device and equipment and a medium, and relates to the field of thermal printing. The method comprises the following steps: acquiring an original image to be printed, and converting the original image into a grayscale image; calculating a gradient difference value of the grayscale image, and generating a threshold distribution map; generating a heat accumulation risk map based on an average gray value in a preset neighborhood window taking each pixel point of the gray image as a center; generating a preliminary binary image according to the threshold distribution map; extracting image features of the preliminary binarization image, and classifying the original image to obtain an image classification result; calling a target processing parameter set corresponding to the image classification result from a plurality of preset processing parameter sets according to the image classification result; performing optimization processing on the preliminary binary image according to the target processing parameter set and the heat accumulation risk map to obtain an optimized binary image; and the final printing image adaptive to the resolution of the target printer is generated, so that the printing definition is improved.

The invention belongs to the technical field of printing materials, and provides a thermal printing material with a cleaning function and a preparation method and application thereof. The thermal printing material comprises a base material, a thermal imaging layer and a protective layer which are sequentially stacked, the protective layer is prepared from a first film forming material, a second film forming material and a cleaning function material, and the cleaning function material comprises rare earth oxide. The first film-forming material is at least one of modified polyvinyl alcohol, styrene acrylic resin, polyurethane resin, polyacrylic resin, styrene maleic anhydride copolymer and waterborne epoxy resin, and the second film-forming material is a carbonyl compound and / or an amino compound. The thermal printing material provided by the invention can clean a thermal printing head while printing, the thermal printing head is kept clean for a long time, the service life is long, the printing effect of an output information image is not influenced, and the thermal printing material has the characteristics of high-transparency appearance, clear image, high density and no scratch.

The utility model provides a probe station, and relates to the technical field of thermal printing head equipment. Comprising an industrial control system, and a vacuum adsorption platform, an XY-axis displacement mechanism, a Z-axis lifting mechanism, a rotation angle compensation mechanism, a visual positioning system, a probe washing device, a probe card and a resistance adjusting case which are connected with the industrial control system. Through the equipment, the uniformity during resistance trimming can be improved, and the resistance trimming efficiency is improved.

The embodiment of the invention provides a thermosensitive gray scale printing method and device, a storage medium and electronic equipment, and is applied to a thermosensitive printer, the method comprises the steps that to-be-printed Mth row of gray scale data is received, the Mth row of gray scale data is the Mth row of data in a K-order gray scale image, M is a positive integer larger than or equal to 1, and K is a positive integer larger than or equal to 2; the M-th line of gray scale data and first reference information are stored in a first memory, and the first reference information comprises the number of points to be heated of each level of gray scale data in the M-th line of gray scale data, a starting byte of each level of gray scale data in the M-th line of gray scale data and an ending byte of each level of gray scale data in the M-th line of gray scale data; and based on the first reference information, sequentially extracting gray scale data of each scale in the M-th line of gray scale data, and controlling the thermal printing head to execute thermal printing operation on the thermal medium according to the gray scale data of each scale in the M-th line of gray scale data until the M-th line of gray scale data is printed.

The invention discloses an Arduino-based intelligent Bluetooth portable printer, and relates to the technical field of intelligent Bluetooth portable printers, the Arduino-based intelligent Bluetooth portable printer comprises a main control module and a thermal printing module electrically connected with the output end of the main control module, and the thermal printing module is used for completing printing of texts and images according to instructions of the main control module; the stepping motor driving module is used for controlling the feeding of the printing paper; the paper shortage detection module is used for detecting whether the printer lacks paper or not and sending an interrupt signal to the main control module when the printer lacks paper; the power supply management module is used for providing stable voltage for each module and supporting charge and discharge management of the rechargeable battery; the Bluetooth communication module is used for carrying out wireless connection and data transmission with external terminal equipment; the temperature monitoring module is used for monitoring the temperature of the printing head in real time and triggering a protection mechanism when the temperature is abnormal; and the user interaction module comprises a power switch and a state indicating lamp and is used for user operation and state feedback.

The invention provides a power supply regulating device and a voltage-adjustable power supply circuit thereof, and relates to the technical field of power supply regulation, the circuit is additionally provided with a sampling resistor, an operational amplifier unit and an MCU on the basis of keeping the original sampling partial voltage, and adjustable analog level output by the MCU is injected into a DC-DC feedback pin after being subjected to operational amplifier gain, so that the voltage-adjustable power supply circuit is formed. The potential of a feedback node is biased in a voltage superposition mode, so that the output voltage and the analog level are in an approximately linear relation; according to the invention, higher resolution adjustment can be obtained in a preset full range only by changing the DAC level or the PWM duty ratio, the gear intervals are uniform, digital potentiometers or segmented switching are not needed, the calculation is simple, the hardware cost is low, and the control is convenient. The high-precision power supply can be widely applied to occasions requiring a software controllable high-precision power supply, such as a thermal printing head test fixture, ink-jet head ink quantity control, motor torque adjustment and the like. The invention aims to solve the problems that the resolution of a low-voltage section is suddenly reduced and the fineness is insufficient due to resistance-voltage nonlinearity during wide-range voltage regulation of a traditional digital potentiometer type DC-DC feedback network.

The invention discloses a thermal printing method and device, equipment, a storage medium and a program product. The method comprises the steps that a plurality of target heating points needing to be started when a printing head prints a current line are obtained; determining heating levels corresponding to the plurality of target heating points; different heating levels correspond to different heating times, and each time of heating corresponds to a preset initial heating duration; based on the current working state parameters of the printing head, the initial heating duration corresponding to each time of heating is adjusted, and the target heating duration corresponding to each time of heating is obtained; and according to the target heating duration corresponding to each time of heating and the heating grade corresponding to each target heating point, the printing head is controlled to complete thermal printing of the current line. By adopting the scheme, the printing head can be controlled to complete thermal printing in combination with the graded target heating points and the adjusted target heating duration, so that the printing quality is effectively ensured.

The invention relates to the technical field of image data processing and thermal printing control, in particular to a power consumption management image data processing method in thermal printing, which comprises the following steps: a space construction and vector definition step: receiving data to establish a coordinate system and an image vector; a thermal history residual construction step: constructing a residual map representing heat energy accumulation in combination with the thermal model; a frequency domain feature extraction step: identifying frequency features and dividing field and texture regions; a dynamic sparse decision-making step: generating an adaptive mask based on thermal-frequency double-domain constraint; a logic synthesis and closed-loop updating step: generating low-power-consumption data and updating the hot cache; according to the method, the sparsification is reversely guided by utilizing the thermal diffusion characteristic, the problem of current overload of high-blackness printing is solved, and the visual integrity is maintained.

The invention relates to the technical field of application of thermal printing heads, in particular to a thermal printing device and a printing method for simplifying gray scale printing and achieving fine gray scale control, and the thermal printing device is provided with an external printing host and a thermal printing head. A PWM modulation unit, a clock unit CLK, a frequency divider, a latch unit LATCH, a printing gating unit STB and a plurality of control units in one-to-one correspondence with a plurality of heating points in the heating resistor are arranged in the printing logic control component, and the printing gating unit STB is used for outputting a current line printing gating control signal to the control units; the PWM modulation unit is used for carrying out pulse width modulation on a printing pulse number mi issued by an external host and outputting heating time pulse signals superposed with different duty ratio pulses to the control unit so as to meet different color development temperature requirements; compared with an existing mode that multiple times of sending of printing data are combined with STB gating, the cost requirement for printer control resources is remarkably reduced on the premise that gray level fine control is met.

The invention provides a printing image processing method, a thermal printing control method and electronic equipment, and the method comprises the steps: extracting the page information of a to-be-printed document, and converting the to-be-printed document into a bitmap according to the page information; obtaining a global threshold value of each pixel point based on the bitmap; sequentially traversing each pixel in the bitmap, for the traversed target pixel, obtaining a region contrast ratio corresponding to the target pixel, and adjusting a global threshold value according to the region contrast ratio to obtain a local threshold value corresponding to the target pixel; and binarizing the corresponding target pixel according to each local threshold to obtain a binarization result. The local threshold is obtained by adjusting the global threshold through the area contrast, the local threshold can better reflect the pixel color close to the target pixel, the problem that the global threshold cannot effectively distinguish the black pixel from the white pixel in the partial area with the low contrast is solved, accurate binarization operation is performed on the target pixel, and the image quality is improved. The contrast between black pixels and white pixels is improved, and the black and white printing effect is improved.

The present invention relates to a positioning mark detection method for detecting a positioning mark of a thermal printing medium loaded into a thermal printer by means of an optical sensor provided in the thermal printer to determine a starting position of the thermal printing medium, the optical sensor comprising a light emitting member and a light receiving member, the light emitting part emits first light to irradiate the positioning mark, the positioning mark feeds back second light different from the first light, the light receiving part receives the second light, and the wavelength of the second light is different from that of the first light; the positioning mark detection method comprises the following steps: detecting and sampling; a signal conversion step; judging the initial position of the thermal printing medium; the light emitting part emits the first light to irradiate the positioning mark, the positioning mark is excited to emit the second light, the wavelength of the second light is different from that of the first light, specifically, the wavelength of the second light is longer than that of the first light, and therefore the light receiving part is prevented from being affected by the light emitted by the light emitting part.

1. The name of the design product: portable thermal printer. 2. The use of the design product: for thermal printing. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view.

1. The name of the product of this design: Children’s Polaroid Camera (Retro). 2. Purpose of the product with this appearance design: It is used for a digital camera product, and the photos taken can also be printed out through the thermal printing component that comes with the machine. 3. The design key point of this appearance design product lies in the shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.

The present disclosure provides a container labeling system comprising a labeling unit equipped with one or more applicators for applying one or more elements onto a container label. The elements are selected from numbers, letters, characters, diagrams, pictures, pictograms, symbols, colors, shades, hues, marks, sounds, displays, icons, graphics, objects, lines, curves, text, dots, shapes, data, photographs, and images. The system includes a control unit configured to differentially configure the elements on each container label based on predetermined criteria. The labeling unit applies the elements using techniques such as printing, thermal printing, embossing, debossing, or engraving. The system enables the production of unique, identifiable labels for containers, enhancing product tracking, authentication, and user experience.

The invention relates to the technical field of printing equipment, and discloses a control method of thermal printing or thermal transfer printing equipment, a storage medium and a system, and the method comprises the steps that the printing equipment obtains model parameters of a printing medium; the printing equipment obtains environment parameters around the printing equipment; the printing equipment sends the model parameters to the cloud service platform; if the hit item of the model parameter exists in the cloud database of the cloud service platform, the cloud service platform returns a cloud printing parameter corresponding to the model parameter to the printing equipment; if the printing equipment receives the cloud printing parameters, the printing equipment inputs the cloud printing parameters and the environment parameters into an individual correction model to obtain corrected printing parameters, and the individual correction model is obtained by training correction behaviors, collected by the printing equipment, of the user on the cloud printing parameters under different environment parameters; and the printing equipment sets the corrected printing parameters as actual printing parameters of the printing equipment. According to the method, the printing parameters conforming to user preferences can be automatically configured, and the printing experience is improved.

The invention relates to the technical field of thermal printing equipment control, in particular to a dynamic temperature-adjusting thermal printing method and equipment based on an upper computer and a USB bridging chip. The method comprises the steps that original printing content and operation parameters are obtained, field naming standardization, data type unification and default value filling processing are carried out, and a standardized structure is generated; based on the bound physical resolution of the printing head, configuring a rasterization step length and a line buffer size, and generating a printing dot matrix and a basic control parameter set; the concentration, the temperature, the speed and the voltage are correlated and sorted, a temperature adjusting field is generated, and a control signal sequence and dynamic pulse width configuration are obtained through dynamic pulse width calculation; and finally, configuring USB-to-GPIO bridging chip pin mapping, initializing a bus session, setting an output mode, and generating an updated operation parameter set. Fine dynamic temperature adjustment of the printing head is achieved, the printing quality consistency and the equipment reliability are effectively improved, overheating damage is avoided, meanwhile, the hardware architecture is simplified, and the cost is reduced.

The invention discloses a transformer substation label printing device, and relates to the technical field of printing device.The transformer substation label printing device comprises a base, vertical walls are fixedly connected to the two sides of the top of the base, a clamping bin is formed between the two vertical walls, a paper bin assembly is arranged in the clamping bin, a cover plate is clamped to the outer edges of the two vertical walls, and an upper through hole and a lower through hole are formed in the vertical part of the cover plate; a thermal printing head is fixedly connected to the end, away from the vertical wall, in the shell, a paper conveying assembly is arranged at the end, close to the vertical wall, in the shell, an extension arm is fixedly connected to the outer wall of one side of the shell, and a spring telescopic rod is fixedly connected to the end, away from the shell, of the extension arm. The paper feeding frame is selected by pulling the extension arm, so that the operation of replacing different printing consumable paper is simpler and more convenient; a certain included angle is formed between the two sets of rubber rollers, printing consumable paper is forcibly flattened through vector component force, and the conditions of double images, skew and incompleteness of printing are avoided.

The invention relates to an adhesive label (100) for traceable labeling of a reusable food container (15). The adhesive label (100) is structured in layers and comprises a first adhesive layer (11), a shrink film (12), a second adhesive layer (13), and a thermal printing paper (14), wherein the thermal printing paper (14) is configured to dissolve at least partially when exposed to a washing solution (17) at a temperature of 63°C to 67°C, in particular 65°C, for an exposure time of 120 s to 180 s, in particular 150 s, and the shrink film (12) is configured to shrink when exposed to a temperature of 63°C to 67°C, in particular 65°C.so that the adhesive label (100) can be removed from the food container (15) without leaving any residue. Furthermore, the invention relates to a method (200) for traceable labeling and washing of a reusable food container (15) comprising the steps of: providing (50) the food container (15), filling (51) the food container (15) with products, providing (52) an adhesive label (100), wherein the adhesive label (100) is releasably laminated onto a release liner (10), printing (53) the adhesive label (100) with product-related information, peeling (54) the release liner (10) from the adhesive label (100), applying (55) the adhesive label (100) to the food container (15), successively removing (56) the products from the food container (15), cleaning (57) the food container (15), and applying (58) a washing solution to the applied adhesive label (100). (17) at a temperature of 63°C to 67°C, in particular 65°C,for an exposure time of 120 s to 180 s, in particular 150 s, until it detaches completely from the food container (15).

The utility model provides a thermal printing head surface cleaning device, and relates to the technical field of thermal printing head surface cleaning. The thermal printing head surface cleaning equipment comprises a feeding device, a cleaning device, an air drying device and a discharging mechanism which are sequentially arranged, the cleaning device comprises a cleaning box, a plurality of sets of sponge roller pairs and a plurality of sets of brush roller pairs are sequentially and rotatably installed in the cleaning box at intervals, and a driving mechanism is installed on the cleaning box; the driving mechanism can drive the sponge roller pair and the brush roller pair to rotate, a water spraying pipe is installed on the upper side of the sponge roller pair and the brush roller pair in the cleaning box, and the water spraying pipe can spray cleaning water to the sponge roller pair and the brush roller pair. The air drying device comprises a supporting frame, a conveying mechanism is installed on the supporting frame and used for conveying the thermal printing head conveyed from the sponge roller pair, and an air blowing mechanism is installed on the portion, located on the upper side of the conveying mechanism, of the supporting frame. The surface cleaning equipment for the thermal printing head can be used for automatically cleaning the surface of the thermal printing head.

The utility model relates to the technical field of thermal printing head manufacturing, in particular to a heating substrate for a thermal printing head and the thermal printing head, which can prevent the printing head from being damaged due to static accumulation, and is characterized in that an anti-static protective film is covered above an insulating protective film; the anti-static protective film extends to the edge or corner part of the insulating protective film, the edge of the anti-static protective film is connected with a conductor outside the insulating substrate through a conductive part on the insulating substrate, and the conductive part adopts a conductive film layer or a conductive adhesive layer formed by sputtering or spraying or printing sintering.

The invention belongs to the technical field of thermal printing, and particularly relates to a photosensitive tape, a photosensitive thermal transfer ribbon and application thereof. By adding the photosensitive resin, the photosensitive resin can react with the photosensitizer after exposure to form a cross-linking system, so that the transferred photosensitive layer has good stability and solvent resistance, and the service life of silk screen plate making in a solvent type ink system is ensured to the greatest extent; by combining a cross-linking system and an auxiliary material (wax or non-photosensitive resin), transfer printing of a photosensitive layer in a thermal printing mode is realized. The method is applied to silk screen plate making, the plate making process is optimized, the overall efficiency is improved, the defects that a traditional photo-sensitive resist plate making process is complex, consumed time is long, and the environment is polluted are overcome, and silk screen plate making high in adaptability to a solvent type ink system and high in stability is obtained while the efficiency is improved. According to the photosensitive thermal transfer ribbon provided by the invention, efficient transfer printing of the photosensitive layer is realized, and a pattern obtained after ultraviolet exposure has excellent solvent friction resistance and solarization resistance.

1. The name of the design product: portable thermal printer. 2. The use of the design product: for thermal printing. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view.

This invention relates to the field of thermal printing control technology, specifically a thermal printing control method, comprising the following steps: acquiring a point index to construct a sequence, determining and extracting structural abrupt change locations, dividing segments and statistically analyzing frequencies to generate a heat distribution map, correcting boundaries based on density trends, extracting representative points to generate a relationship table, and comparing thermal states to adjust heating parameters to complete printing control. In this invention, structural abrupt change boundaries are constructed by extracting differences in point indexes, a heating distribution map group is generated by combining trigger frequency and heating channel number, segment boundary positions are corrected based on heat density gradient trends, symmetrical representative points are extracted by frequency sorting to establish an activation index table, and the thermal states of representative points are compared with thermal reference intervals to dynamically adjust the heating rhythm and energizing duration. This achieves localized refinement of thermal input control, rhythm self-matching of structural segments, and dynamic balanced distribution of point energy consumption, enhancing the clear expression of printed images in changing areas and the adaptability of the overall thermal control strategy.

1. The name of the design product: portable thermal printer. 2. The use of the design product: for thermal printing. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view.

Thermal printing on plastic cards, wherein the energization of each individually energizable heating element of a thermal printhead is adjusted based on the temperature of the thermal printhead and the density of the pixel to be printed. For each pixel, the printhead temperature and the pixel density of the pixel to be printed are used to adjust the length of the gate pulse used to energize the heating element to print the pixel. By compensating for both the printhead temperature and the pixel density, tighter tolerances in the resulting print density are obtained.

A thermal printing apparatus 10 includes the printhead 12; a printhead actuation system 20 attached to the printhead, and a controller 14, which is operable to control the printhead actuation system t

The utility model discloses a high-strength welding structure of a flexible flat cable and a thermal printing head, and relates to the field of printer flat cable fixation, the high-strength welding structure comprises the thermal printing head and the flexible flat cable, the flexible flat cable is welded and fixed at the top end of the thermal printing head, the flexible flat cable is of a three-layer design, the middle layer of the flexible flat cable is exposed and welded with the thermal printing head, and the middle layer of the flexible flat cable is welded with the thermal printing head. The thermal printing head comprises a printing head body and a bonding pad, the bonding pad is fixed to the rear side of the top end of the printing head body, the flexible flat cable comprises a circuit board body, a first square PI film opening, a copper foil opening and a second square PI film opening, the first square PI film opening is formed in the top end of the circuit board body, and the second square PI film opening is formed in the bottom end of the circuit board body. According to the high-strength welding structure of the flexible flat cable and the thermal printing head provided by the utility model, the design that the two surfaces of the copper foil layer located at the middle layer are exposed can be adsorbed at the bonding pad of the thermal printing head through soldering tin, so that the overall anti-pulling strength and stability are greatly improved.

The utility model provides a high-heat-dissipation film thermal printing head, and belongs to the technical field of thermal printing, the printing head comprises a heat dissipation plate and a heating substrate, the heating substrate comprises an insulating substrate, and a local glaze coating layer, a heating resistor body, a lead electrode and a protective layer which are arranged on the upper surface of the insulating substrate, the heat dissipation plate is located on the lower surface of the insulating substrate, and the heat dissipation plate is located on the lower surface of the insulating substrate. One side of the front end of the heat dissipation plate extends towards the insulation substrate in the direction perpendicular to the wide breadth face of the heat dissipation plate to form a heat dissipation plate boss, and the lower surface and the front edge end face of the insulation substrate are connected with the upper surface of the heat dissipation plate and the side face of the heat dissipation plate boss respectively for heat transfer. The height h11 of the heat dissipation plate boss is 10%-100% of the thickness of the insulating substrate. According to the printing head, the heat dissipation effect can be enhanced through the specific structure and material combination of the boss of the heat dissipation plate and the arrangement of the local glaze coating, heat dissipation is controlled according to needs, and therefore the printing speed of the printing head is increased, and the service life of the printing head is prolonged.

The present invention relates to the field of thermal printing sheet processing, and specifically to an automatic material receiving mechanism and material receiving method for thermal printing sheet processing. The automatic material receiving mechanism for thermal printing sheet processing includes a base and a first conveying device and a second conveying device arranged on the base; the automatic material receiving mechanism for thermal printing sheet processing also includes: a first vertical plate and a second vertical plate fixed to the base and arranged opposite to each other; a transfer structure installed on the base and located between the first conveying device and the second conveying device, and used to transfer the substrate on the first conveying device to the material box on the second conveying device. Finally, through the mechanical coordination between various structures and components, the pre-printing cleaning process of the thermal printing sheet is automated, and the material receiving process is highly orderly, which can improve efficiency and ensure the stability and reliability of product quality.

The present invention relates to the field of intelligent detection technology, and discloses an online detection method and system for printing defects based on the Internet of Things. In the standard printing data construction stage, it includes: implementing a thermal printing process on a thermally responsive substrate, and continuously acquiring printing pattern images with a sampling time granularity of seconds; after cooling the acquired printing pattern images, if the final printing pattern image presents an expected shaping effect, terminate the acquisition and retain to form a standard image set; otherwise discard and repeat the thermal printing process on the thermally responsive substrate; for several images in the standard image set, use a multi-level superpixel segmentation technology to generate a superpixel network and the corresponding superpixel network index. In the target medium defect detection stage, it includes: implementing a thermal printing process on the target thermally responsive substrate, and continuously acquiring target printing pattern images with a sampling time granularity of seconds; generating a corresponding target superpixel network and target superpixel network index for each frame of the target printing pattern image.