Provided herein is a printing apparatus that includes a printhead assembly and a plurality of printhead pressure load modules that are adjustable on a shaft of a printhead pressure load assembly and engaged with a printhead member. The printhead pressure load module has a hollow housing, a plunger member, and a rotary cam. The plunger member and the rotary cam are movably engaged in the hollow housing. The rotary cam includes a plurality of channel members defined at an outer surface. Each channel member has a depth that is different from a depth of an adjacent channel member. A movement of the plunger member inwardly through the hollow housing defines a position of the rotary cam along the longitudinal axis with respect to the hollow housing. Position change of the rotary cam defines a force that acts on a pressure contact member and adjusts a load on the printhead assembly.

A print device includes a head unit holding a heat sink, a head holding member holding the head unit, a platen roller, a support shaft supporting the head holding member to pivot between a close position and a separated position, an urging member, and an adjustment mechanism including an adjustment shaft and an eccentric cam. The separated position is a position where the print head is separated from the platen roller than the close position. The urging member urges the head unit and applies a pressing load pressing the print head against the platen roller. The eccentric cam rotates around the adjustment shaft and coming into contact with the head holding member in a state of being offset with respect to the adjustment shaft. The adjustment mechanism adjusts a position of heating elements of the heat sink with respect to the platen roller by rotating of the eccentric cam.

A print device includes a head unit holding a heat sink, a head holding member holding the head unit, a platen roller, a support shaft supporting the head holding member to pivot between a close position and a separated position, an urging member, and an adjustment mechanism including an adjustment shaft and an eccentric cam. The separated position is a position where the print head is separated from the platen roller than the close position. The urging member urges the head unit and applies a pressing load pressing the print head against the platen roller. The eccentric cam rotates around the adjustment shaft and coming into contact with the head holding member in a state of being offset with respect to the adjustment shaft. The adjustment mechanism adjusts a position of heating elements of the heat sink with respect to the platen roller by rotating of the eccentric cam.

A printer comprising a printhead configured to selectively cause a mark to be created on a substrate, a first motor coupled to the printhead and arranged to vary the position of the printhead relative to a printing surface against which printing is carried out to thereby control the pressure exerted by the printhead on the printing surface, and a controller arranged to control the first motor. The controller is arranged to control the magnitude of current supplied to windings of the first motor so as to cause a predetermined pressure to be exerted by the printhead on the printing surface.

A printer comprising a printhead configured to selectively cause a mark to be created on a substrate, a first motor coupled to the printhead and arranged to vary the position of the printhead relative to a printing surface against which printing is carried out to thereby control the pressure exerted by the printhead on the printing surface, and a controller arranged to control the first motor. The controller is arranged to control the magnitude of current supplied to windings of the first motor so as to cause a predetermined pressure to be exerted by the printhead on the printing surface.

There is provided a printing apparatus including: a thermal head having a plurality of heating elements arranged in a first direction; a first engaging member; a head holder having a second engaging member which is configured to engage with the first engaging member so that the thermal head is rotatable about a first axis line extending in the second direction, the head holder holding the thermal head in a posture in which the plurality of heating elements are oriented in a third direction; a pair of urging members each having an end projecting toward the thermal head; a contacting member with which the end of each of the pair of urging members is brought into contact; and a locking part which locks the end of each of the pair of urging members.

Printhead carriers and adapters are disclosed. An example disclosed print mechanism includes a printhead carrier including first and second pivot mechanisms; and a toggle assembly to, when in an engaged position, apply a force to the printhead carrier with the printhead carrier in a closed configuration, wherein the closed configuration enables printing operations, when in a disengaged position, allow the printhead carrier to transition to an open configuration via the first pivot mechanism, wherein the open configuration provides access to a printhead carried by the printhead carrier, and when in the disengaged position, allow the printhead carrier to transition to an access configuration via the second pivot mechanism, wherein the access configuration enables removal of the printhead from the printhead carrier.

Printhead carriers and adapters are disclosed. An example disclosed print mechanism includes a printhead carrier including first and second pivot mechanisms; and a toggle assembly to, when in an engaged position, apply a force to the printhead carrier with the printhead carrier in a closed configuration, wherein the closed configuration enables printing operations, when in a disengaged position, allow the printhead carrier to transition to an open configuration via the first pivot mechanism, wherein the open configuration provides access to a printhead carried by the printhead carrier, and when in the disengaged position, allow the printhead carrier to transition to an access configuration via the second pivot mechanism, wherein the access configuration enables removal of the printhead from the printhead carrier.

In a printing apparatus, the thermal head includes a plurality of heater elements arranged in line. A sheet which is conveyed in a conveyance direction is nipped between a platen member and the thermal head. The urging member urges at least one of the thermal head and the platen member to approach each other to generate pressure to the sheet nipped between the thermal head and the platen member. The pressure varies in accordance with a position in a width direction crossing the conveyance direction. The processor sets energy to be supplied to the plurality of heater elements so that the lower pressure a portion of the sheet in the width direction receives, the higher energy is to be supplied to a heater element corresponding to a position of the portion in the width direction. The processor controls the set energy to be supplied to the plurality of heating elements.

In a printing apparatus, the thermal head includes a plurality of heater elements arranged in line. A sheet which is conveyed in a conveyance direction is nipped between a platen member and the thermal head. The urging member urges at least one of the thermal head and the platen member to approach each other to generate pressure to the sheet nipped between the thermal head and the platen member. The pressure varies in accordance with a position in a width direction crossing the conveyance direction. The processor sets energy to be supplied to the plurality of heater elements so that the lower pressure a portion of the sheet in the width direction receives, the higher energy is to be supplied to a heater element corresponding to a position of the portion in the width direction. The processor controls the set energy to be supplied to the plurality of heating elements.