Abstract: In one example, a device for unwinding or winding multiple rolls of print substrate includes multiple spindles each to hold a roll of print substrate and a differential operatively connected to one end of each spindle. The spindles are aligned with one another lengthwise along a spindle axis and the differential is to output torque along a differential axis offset from the spindle axis to turn the spindles on the first axis.

Abstract: A print device includes a first print portion, a first discharge portion, a second print portion, and a second discharge portion. The first discharge portion is configured to discharge a first medium printed by the first print portion in a first direction toward the outside of the print device. The second discharge portion is configured to discharge a second medium printed by the second print portion in a second direction toward the outside of the print device. The first discharge portion and the second discharge portion are configured to respectively discharge the first medium and the second medium to the outside of the print device from discharge positions that do not overlap with each other in an up-down direction. The first direction and the second direction are directions that separate from each other.

Abstract: A stamp face forming apparatus includes: a stamp face forming unit having a plurality of heating elements arranged in a direction along a surface on which a porous stamp face material being able to become nonporous by heating is held, and a drive circuit for controlling the heating states of the plurality of heating elements, the stamp face forming unit being configured to form a stamp face on the stamp face material while pressing the stamp face material; and a control unit configured to control the drive circuit of the stamp face forming unit in such a manner as to reduce the heating amount per one dot to be heated of the stamp face material in the arrangement direction of the plurality of heating elements corresponding to a decreasing length of the stamp face material in the arrangement direction of the plurality of heating elements.

Abstract: A thermal printer includes a first thermal head which is so provided as to be brought into contact with one side of a paper, a second thermal head which is so provided as to be brought into contact with the other side of the paper, and a controller. The first thermal head energizes a plurality of heater elements to print dot image data on one side of the paper. The second thermal head energizes a plurality of heater elements to print dot image data on the other side of the paper. The controller is configured to shift the energization times between the first thermal head and second thermal head.

Abstract: A thermal printer includes a first thermal head which is so provided as to be brought into contact with one side of a paper, a second thermal head which is so provided as to be brought into contact with the other side of the paper, and a controller. The first thermal head energizes a plurality of heater elements to print dot image data on one side of the paper. The second thermal head energizes a plurality of heater elements to print dot image data on the other side of the paper. The controller is configured to shift the energization times between the first thermal head and second thermal head.

Abstract: A thermal printer includes a first thermal head which is so provided as to be brought into contact with one side of a paper, a second thermal head which is so provided as to be brought into contact with the other side of the paper, and a controller. The first thermal head energizes a plurality of heater elements to print dot image data on one side of the paper. The second thermal head energizes a plurality of heater elements to print dot image data on the other side of the paper. The controller is configured to shift the energization times between the first thermal head and second thermal head.

Abstract: A method of driving a print head and an image forming apparatus employing the same are provided, wherein recording elements of the print head are divided into n groups and are driven to print an image on a medium, wherein recording elements from the respective n groups, that is, one recording element from each of the n groups, are simultaneously driven and a driving order of the recording elements is arranged such that printing positions of the recording elements in each group form a plurality of oblique lines as a medium is fed. Accordingly, the plurality of recording elements, which are divided into a plurality of phases, are non-sequentially driven and therefore, the power consumption due to the driving of the recording elements and degradation of print quality can be reduced.

Abstract: The invention relates to a device for printing one or several objects moving in a feed direction, in particular labels, packaging and packaging sections on a flat strip (1) or labels (2) stuck on a support band strip, comprising a print head (4) and means for introducing the object for printing to the print head. According to the invention, the supply speed of the material for printing and thus the printing capacity or labelling capacity of the device may be increased, without reducing the print quality and without increasing the wear on the print head (4) caused by the abrasive effect of the object, whereby the print head is provided with a drive (9, 11-16), by means of which the print head (4) may be moved in the feed direction of the object for printing and counter to the feed direction of the object.

Abstract: A stencil making apparatus thermo-sensitively perforates a stencil sheet by a thermal print head. The apparatus includes a controlling device for driving contiguous N pieces of heat generating elements of the thermal print head while shifting respectively heat generating timings at every 1/N of a period of one line of main scanning in perforating inputted image data of the one line of the main scanning.

Abstract: A printer using a power reduction logic based upon reducing the speed of printing when the dot utilization calculation exceeds a particular power level for that printer. There is also provided a method for printing information at a given power supply capacity level, comprising the steps of: examining the a group of rows of dots to be printed; calculating the maximum dot utilization value for the group; selecting a print speed based on the maximum dot utilization value; printing the first row of the group of rows; and repeating above steps until the information is printed.

Abstract: There will be provided a printing method for block copy film and a block copy printer capable of adjusting printing density as occasion arises as well as making joints between print lines inconspicuous. A predetermined mount of conveyance of transparent resin film P will be set to 1/N (N is an integer of 2 or more) of a predetermined printing width, which is a line-up width of the exothermic elements, and printing at a predetermined printing width will be repeated after the transparent resin film P is conveyed in the predetermined amount of conveyance.

Abstract: Multiple images are printed utilizing lateral sets of print elements on a printhead and lateral portions of a ribbon.

Abstract: A thermal printer comprises a plurality of heating elements for heating a recording medium to form an image thereon, an electric motor for transporting the recording medium to a direction opposite to a subscanning direction by rotating a predetermined angle each time a driving pulse is input, and an activating control section for dividing the plural heating elements into a plurality of groups and for activating every the groups of the heating elements in sequence asynchronously such that the sequential activating of all the groups is repeated more than once while each time the driving pulse is turned on.

Abstract: A thermal transfer printer comprises two parallel and adjacent print engines (1a, 1b), with each engine comprising a platen roller (4), a donor ribbon extending from a supply spool (10a, 10b) to a take-up spool (11a, 11b), and receiver supply rolls (5a, 5b) to hold a supply of receiver sheet. Drive means (11a, 11b; 26a, 26b) transport the donor ribbon and receiver sheet through the engine during printing independently from the drive means of the other engine. A printhead (3) has a row of heaters extending across both engines, with a first set (3a) of heaters positioned to operate with the first engine (1a) and a second set (3b) of heaters positioned to operate with the second engine (1b). Control means coordinate activation of the engines selectively with application of the image signal to the heater set which is operable with that selected engine. Both engines can be operated independently, enabling the printer to be set up for independent or dual printing.