Abstract: Disclosed is a disk label printer that includes a slot-in type optical disk driving mechanism and a printing mechanism integrated with each other, has a small size, and smoothly transfers optical disks. The disclosed disk label printer includes: a case that has a slot through which an optical disk is inserted or ejected formed therein; an optical disk driving mechanism that is provided in the case and writes and/or reads signals to and/or from the optical disk mounted to a disk mounting portion; and a printing mechanism that is provided in the case and includes a thermal head which prints a desired image on a label surface of the optical disk. The printing mechanism is provided on a transfer path of the optical disk toward the optical disk driving mechanism between the slot and the optical disk driving mechanism.

Abstract: A line thermal printer includes a platen roller and a line thermal head including a plurality of heating elements. The heating elements are disposed to face the entire area of a recording sheet in a width direction of the recording sheet and selectively generate heat. The recording sheet is interposed between the platen roller and the line thermal head. The line thermal printer performs printing at the interposed position on the recording sheet by the selective generation of heat of the heating elements while the recording sheet is moved. The line thermal printer includes a foreign material blocking member. The foreign material blocking member is disposed upstream of the interposed position to come in contact with an upper surface of the recording sheet, and prevents foreign materials, which are placed on the upper surface of the recording sheet, from being moved toward the interposed position.

Abstract: A thermal head includes: a head substrate including a plurality of heating elements arranged in a row; and a heat dissipation member supporting the head substrate, wherein heat from the heating elements is transferred to the heat dissipation member through the head substrate, a surface of the heat dissipation member opposing the head substrate is provided with a heat accumulation adjusting groove which has a recessed shape along the arrangement direction of the row of the heating elements, and both edge portions of the surface of the heat dissipation member in a width direction of the heat accumulation adjusting groove come in contact with a rear surface of the head substrate opposing the heat dissipation member, the width direction being perpendicular to the arrangement direction of the heating elements.

Abstract: A line thermal printer includes a platen roller and a line thermal head including a plurality of heating elements. The heating elements are disposed to face the entire area of a recording sheet in a width direction of the recording sheet and selectively generate heat. The recording sheet is interposed between the platen roller and the line thermal head. The line thermal printer performs printing at the interposed position on the recording sheet by the selective generation of heat of the heating elements while the recording sheet is moved. The line thermal printer includes a foreign material blocking member. The foreign material blocking member is disposed upstream of the interposed position to come in contact with an upper surface of the recording sheet, and prevents foreign materials, which are placed on the upper surface of the recording sheet, from being moved toward the interposed position.

Abstract: Disclosed is a disk label printer that includes a slot-in type optical disk driving mechanism and a printing mechanism integrated with each other, has a small size, and prints a high-quality image on the label surface of an optical disk. The disclosed disk label printer includes: a case that has a slot through which an optical disk is inserted or ejected formed therein; an optical disk driving mechanism that is provided in the case and writes and/or reads signals to and/or from the optical disk mounted to a disk mounting portion; and a printing mechanism that is provided in the case and includes a thermal head printing a desired image on a label surface of the optical disk. The printing mechanism is provided on a transfer path of the optical disk toward the optical disk driving mechanism between the slot an optical disk driving mechanism.

Abstract: Disclosed is a disk label printer that includes a slot-in type optical disk driving mechanism and a printing mechanism integrated with each other, has a small size, and smoothly transfers optical disks. The disclosed disk label printer includes: a case that has a slot through which an optical disk is inserted or ejected formed therein; an optical disk driving mechanism that is provided in the case and writes and/or reads signals to and/or from the optical disk mounted to a disk mounting portion; and a printing mechanism that is provided in the case and includes a thermal head which prints a desired image on a label surface of the optical disk. The printing mechanism is provided on a transfer path of the optical disk toward the optical disk driving mechanism between the slot and the optical disk driving mechanism.

Abstract: A heat-dissipating member includes a heat-dissipating section which is plate-shaped and which is attachable to a heat source directly or indirectly and also includes a plurality of heat-dissipating projections extending from the heat-dissipating section. The heat-dissipating projections are formed by louvering the heat-dissipating section so as to have predetermined heights. The heat-dissipating projections are arranged in increasing order of height in the direction from one end of the heat-dissipating section to an end of the heat-dissipating section that is opposed to the one end. A thermal head includes a plurality of heating elements arranged thereon and a head mount attached to the above heat-dissipating member directly or indirectly.

Abstract: A printer having a thermal head disposed such that when heater elements are in contact with a platen, the following formulas are satisfied: H1?H?Hmax; Hmax=(H1+H2)=L tan(?1+?3); and ??=(?2??1)=(3°±1°). Length L is between a first line perpendicular to a top-substrate-surface and extending through a contact point between the heater elements and the platen, and a second line perpendicular to the top-substrate-surface and extending through a peak of a sealing member; height H is from the top-substrate-surface to the peak; height H1 is from the top-substrate-surface to a tangent between the platen and the heater elements; height H2 is from the tangent to a conveying path of a recording medium; angle ?1 is between the tangent and the top-substrate-surface; ?2 denotes a slope angle of a projection from the tangent; angle ?3 is between the tangent and the conveying path; and ?? denotes a head-returning angle.

Abstract: A heat-dissipating member includes a heat-dissipating section which is plate-shaped and which is attachable to a heat source directly or indirectly and also includes a plurality of heat-dissipating projections extending from the heat-dissipating section. The heat-dissipating projections are formed by louvering the heat-dissipating section so as to have predetermined heights. The heat-dissipating projections are arranged in increasing order of height in the direction from one end of the heat-dissipating section to an end of the heat-dissipating section that is opposed to the one end. A thermal head includes a plurality of heating elements arranged thereon and a head mount attached to the above heat-dissipating member directly or indirectly.

Abstract: In order to reduce creases of an ink film so as to offer excellent printing quality, a thermal head for use in a thermal-transfer printer includes a heat-insulating layer; a first projection serving as a part of the heat-insulating layer; a heating element formed on the first projection; common and individual electrodes connected to the heating element; a driver IC connected to these two electrodes; a sealing member sealing the driver IC; and a second projection protruding upstream, with respect to the transport route of the ink film, of the center of a section where the heating element comes into contact with a platen, so as to lie beyond a line connecting the apexes of the first projection and the sealing member.

Abstract: A printer having a thermal head disposed such that when heater elements are in contact with a platen, the following formulas are satisfied: H1?H?Hmax; Hmax=(H1+H2)=L tan(?1+?3); and ??=(?2??1)=(3°±1°). Length L is between a first line perpendicular to a top-substrate-surface and extending through a contact point between the heater elements and the platen, and a second line perpendicular to the top-substrate-surface and extending through a peak of a sealing member; height H is from the top-substrate-surface to the peak; height H1 is from the top-substrate-surface to a tangent between the platen and the heater elements; height H2 is from the tangent to a conveying path of a recording medium; angle ?1 is between the tangent and the top-substrate-surface; ?2 denotes a slope angle of a projection from the tangent; angle ?3 is between the tangent and the conveying path; and ?? denotes a head-returning angle.

Abstract: In order to reduce creases of an ink film so as to offer excellent printing quality, a thermal head for use in a thermal-transfer printer includes a heat-insulating layer; a first projection serving as a part of the heat-insulating layer; a heating element formed on the first projection; common and individual electrodes connected to the heating element; a driver IC connected to these two electrodes; a sealing member sealing the driver IC; and a second projection protruding upstream, with respect to the transport route of the ink film, of the center of a section where the heating element comes into contact with a platen, so as to lie beyond a line connecting the apexes of the first projection and the sealing member.

Abstract: In order to improve the traveling stability of an ink ribbon, a thermal head having a structure in which an edge of one surface of a substrate, lying downstream with respect to the traveling direction of an ink ribbon, is formed so as to have a curved shape projecting most downstream with respect to the traveling direction of the ink ribbon at the widthwise central portion of the ink ribbon or a thermal-transfer line printer having a structure in which a separation member separating the ink ribbon from a paper sheet and a tension-exerting section are independently formed from each other is provided.