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| Number | Title | Issue Date |
| 7369145 | Method and apparatus for controlling the uniformity of print density of a thermal print head array A method for controlling the print density of individual heating elements of a thermal print head array determines respective energy values for each heating element in response to image pixel data to be printed, multiplies determined energy values by a respective pr... | 05/06/2008 |
| 7330201 | Thermal printer and method for operating same A printer that applies donor material from donor patches on a donor web to a receiver medium using a thermal printhead that generates heat and a method for operating such a printer are provided. The method comprises the steps of: receiving a print order requesting t... | 02/12/2008 |
| 7311385 | Micro-fluid ejecting device having embedded memory device A semiconductor substrate for a micro-fluid ejecting device. The semiconductor substrate includes a plurality of fluid ejection devices disposed on the substrate. A plurality of driver transistors are disposed on the substrate for driving the plurality of fluid ejec... | 12/25/2007 |
| 7207644 | Printing apparatus and printing control method for controlling the number of printing elements used in printing Printing apparatus and printing control method capable of high-speed printing without enlarging the size of a carriage driving motor and/or a power source. In a printing apparatus employing the printing control method, a carriage to which a printhead having a plural... | 04/24/2007 |
| 7206654 | Digitally active 3-D object creation system A three dimensional object creation system that prints objects layer by layer, the system including a plurality of printheads, the system printing at least part of each of multiple layers simultaneously. ... | 04/17/2007 |
| 7178894 | Franking device with tamper protection In a method and apparatus for generating a print image, particularly a franking imprint, on a first image carrier composed of at least one first partial image and a second partial image offset thereto transversely relative to a first direction, whereby a relative mo... | 02/20/2007 |
| 7104713 | Printer for a heat-sensitive adhesive sheet A printer has a sheet housing unit for storing a heat-sensitive adhesive sheet having a heat-sensitive adhesive layer on one side and a printable surface on the other side. A set of pull-out rollers pulls the heat-sensitive adhesive sheet out of the sheet housing un... | 09/12/2006 |
| 7101100 | Printer apparatus Provided is a printer apparatus, including: a thermal print head that performs printing by contacting a heat-sensitive color-developing layer of a heat-sensitive adhesive sheet that includes a printable surface made from the heat-sensitive color-developing layer on ... | 09/05/2006 |
| 7091999 | Thermal printing apparatus and printing method A printing apparatus including a thermal head, a measurement device that measures a temperature of the thermal head and a controller. The controller controls a printing speed on the basis of the measured temperature as measured by the measurement device, determines ... | 08/15/2006 |
| 7040822 | Portable printing system A portable label printing system for printing on a variety of materials is disclosed. A retractable platen roller cooperates with a self-aligning print head in three planes cooperates for proper label printing registration. A display screen allows the user to view p... | 05/09/2006 |
| 6857717 | Inkjet printing apparatus, control method therefor, and program Print data containing a specific print pattern and the number of paper sheets to be printed is input from an external interface. On the basis of the print pattern and the number of printing thereof to be printed, the temperature of an inkjet printhead is predicted b... | 02/22/2005 |
| 6629495 | Method of and apparatus for making heat-sensitive stencil and heat-sensitive stencil material When thermally perforating a thermoplastic resin film of heat-sensitive stencil material by the use of a thermal head, supply of energy to the thermal head is cut at a time the diameter of the perforations becomes not smaller than 65% and not larger than ... | 10/07/2003 |
| 6494629 | Data processing method for eliminating influence of heat accumulation in thermal head of thermal printer There is disclosed a data processing method for correcting heating data for a thermal head of a thermal printer, to eliminate influence of heat energy accumulated in first to Nth heat accumulating layers of the thermal head. Basic heating data of a subjec... | 12/17/2002 |
| 6283650 | Printing device having an output level compensation function A printing device having multiple printheads includes an acquisition device to obtain temperatures of the multiple printheads, a determination device which determines, based on the obtained temperature of one printhead, a target temperature corresponding ... | 09/04/2001 |
| 6217239 | Temperature control apparatus A temperature control apparatus for controlling a temperature of a heating resistor included on a thermal head of a printer. The temperature control apparatus includes a sensing circuit for sensing the temperature of the heating resistor from a current fl... | 04/17/2001 |
| 6146031 | Method and apparatus for controlling a thermal printer head A method and apparatus for controlling a thermal printer head. The temperature of a recording medium is sensed to determine a heating parameter for controlling the heat supplied to the thermal printer head. A transforming circuit receives image data and t... | 11/14/2000 |
| 6076981 | Printing apparatus and method of making mask pattern for exposure thereby There are provided a printing apparatus and a method of making a mask pattern for exposure by the use of the printing apparatus. A temperature of a thermal head is detected, and a plurality of split pulses formed by dividing a strobe pulse applied to the ... | 06/20/2000 |
| 5980134 | Printer capable of printing a tape while the tape is accelerating and decelerating in speed The present invention provides a method and an apparatus for driving and controlling a thermal head used in a printing device, such as a tape printer, in response to the temperature variations of the printing device environment and the thermal head. Accor... | 11/09/1999 |
| 5890819 | Thermal printer system and method for improved compensation of variations in operating parameters There is disclosed a thermal printer system in which variations in voltage (and the energy corresponding thereto) supplied to resistance elements of a print head are electronically compensated for. The voltage at the print head is monitored as a line of p... | 04/06/1999 |
| 5851075 | Ink jet printer Disclosed is an ink jet printer in which the temperature detecting circuit 8 is arranged between the thermistor 3 mounted on the ink jet head 2 and the flexible cable 7 for transmitting the signal output from the thermistor 3 to the CPU 30, and the analog... | 12/22/1998 |
| 5841461 | Accumulated heat correction method and apparatus Accumulated heat correcting data of an Nth line to be printed is subtracted from original heat data of the Nth line. This corrected heat data of the Nth line is supplied to a head driver which drives a thermal head to record dots of one line on a recordin... | 11/24/1998 |
| 5800075 | Data processing method for eliminating influence of heat accumulating in thermal head A data processing apparatus for correcting heating data for a thermal head to eliminate influence of heat accumulation in the thermal head on recording density. The apparatus is comprised of a correction circuit having a subtracter for subtracting first c... | 09/01/1998 |
| 5800082 | Recording apparatus and recording temperature control method A controller receives a signal indicating the temperature of a print head from a head temperature detection thermistor. The controller sets a cooling time for the print head based on a time in which the temperature of the print head increase from a first ... | 09/01/1998 |
| 5741079 | Printing apparatus and method of making mask pattern for exposure thereby There are provided a printing apparatus and a method of making a mask pattern for exposure by the use of the printing apparatus. A temperature of a thermal head is detected, and a plurality of split pulses formed by dividing a strobe pulse applied to the ... | 04/21/1998 |
| 5690437 | Method and apparatus for controlling the thermal head drive The present invention provides a method and an apparatus for driving and controlling a thermal head used in a printing device, such as a tape printer, in response to the temperature variations of the printing device environment and the thermal head. Accor... | 11/25/1997 |
| 5664893 | Thermal printer comprising a real time temperature estimation A thermal sublimation printer comprises means for counting at periodic observation times the number (Nh) of activated heating elements; means for measuring at periodic observation times the temperature (Td) of the drum and the temper... | 09/09/1997 |
| 5524993 | Automatic print speed control for a barcode printer An automatic print speed control for a barcode printer is shown, the printer includes a printhead to which power is applied during a strobe time to cause the printhead to print. The printer also includes a stepper motor that is responsive to a periodic dr... | 06/11/1996 |
| 5346318 | Thermal recording head driving device Disclosed herein is a recording head driving device for driving a number of recording heads such as thermal heads or the like for printing characters on recording mediums. A control signal; for controlling the time required to energize each of the recordi... | 09/13/1994 |
| 5187494 | Thermal transfer recording apparatus and method having preheating There is disclosed a thermal transfer printer for image recording by ink transfer from an ink sheet onto a recording sheet, which is capable of stable sheet transportation and improvement in image quality. The printer has transport mechanisms for the ink ... | 02/16/1993 |
| 5132709 | Apparatus and method for closed-loop, thermal control of printing head The heating elements of a thermal printing head are respectively driven through drive transistors under the control of strobe pulses and are respectively provided with temperature control circuits, each such circuit including a sense resistor connected in... | 07/21/1992 |
| 5059044 | Thermal printer that detects rate of temperature increase A ticket issuing device includes a thermal head, a temperature detector circuit for detecting the temperature of the thermal head, and a printing control circuit for driving the thermal head to repeatedly print boarding ticket information on paper a numbe... | 10/22/1991 |
| 5025267 | Thermal print head termperature control An apparatus and method is disclosed for controlling the temperature of a thermal print head and individual dot elements thereon, thereby optimizing print quality and reducing the thermal and electrical stress on the thermal print head. Hysteresis control... | 06/18/1991 |
| 5023626 | Printer capable of temperature compensation of the optical density of a printed image after a complete image is printed A printer for recording an image on a recording medium comprises a recording head for recording an image on a recording medium, a thermocouple for detecting a temperature, a control circuit for controlling the recording head in accordance with a detection... | 06/11/1991 |
| 4113391 | Method for controlling voltage and providing temperature compensation in a thermal printer A method and apparatus is provided for controlling the period or pulse width of pulses applied to exothermic printing elements of a thermal printer to effect printing. Control of the period or pulse width is in response to variations in applied voltage an... | 09/12/1978 |
