Abstract: Disclosed is a thermal head for thermal recording, which comprises as the heat-generating resistor a dense thin layer having a composition represented by the following formula:Ti.sub.x Si.sub.y O.sub.zwhereinx is a number of from 0.25 to 0.45, y is a number of from 0.25 to 0.40 and z is a number of from 0.25 to 0.40, with the proviso that the sum of x, y and z is equal to 1.This heat-generating resistor has a large specific resistance and generates a large quantity of heat per unit electric current, and in this heat-generating resistor, deviation of the temperature is small and the heat-generating resistor is tightly boned to an electric conductor. Therefore, the printing operation can be performed stably for a long period.This heat-generating resistor is formed by depositing a thin film on a substrate by subjecting titanium silicide or a combination of silicon and titanium to sputtering or electron beam deposition in a reduced-pressure atmosphere containing oxygen.

Abstract: Disclosed is a thermal head for thermal recording, which comprises as the heat-generating resistor a dense thin layer having a composition represented by the following formula:Ti.sub.x Si.sub.y O.sub.zwherein x is a number of from 0.25 to 0.45, y is a number of from 0.25 to 0.40 and z is a number of from 0.25 to 0.40, with the proviso that the sum of x, y and z is equal to 1.This heat-generating resistor has a large specific resistance and generates a large quantity of heat per unit electric current, and in this heat-generating resistor, deviation of the temperature is small and the heat-generating resistor is tightly boned to an electric conductor. Therefore, the printing operation can be performed stably for a long period.This heat-generating resistor is formed by depositing a thin film on a substrate by subjecting titanium silicide or a combination of silicon and titanium to sputtering or electron beam deposition in a reduced-pressure atmosphere containing oxygen.

Abstract: Disclosed is a thermal head in which a plurality of heat-generating elements are arranged on a substrate on a line oblique to the scanning direction of the thermal head so that the projecting scanning region of each heat-generating element overlaps the projection scanning region of the adjacent heat-generating element over a minute space without any blank clearance between the projecting scanning regions. In this thermal head, mutual thermal influences in the heat-generating elements can be completely eliminated, and the printing quality can be improved.

Abstract: In a thermal head comprising a plurality of heat-generating elements formed on a glaze layer on a substrate, grooves extending to the midway of the glaze layer in the thickness direction of the glaze layer and having a depth of 0.3 to 30 .mu.m are formed in the surface portion of the glaze layer between every two adjacent heat-generating elements. This thermal head is improved in both the rising and falling response characteristics of the heat-generating temperature by the presence of these grooves, and sharp images having a high resolving power can be obtained.

Abstract: The present invention relates to improvements in a substrate for producing an electrophotographic sensitive member having a photoconductive layer formed with amorphous silicon. An electrophotographic sensitive member, which is superior in moldability, corrosion resistance, strength, charging electric potential and the like, is formed when an aluminium material, which contains at least one of iron and manganese or a combination of each at 0.30 or less % by weight, is used as a substrate on which a photoconductive layer formed with amorphous silicon is laminated; and/or the surface roughness of said substrate is 0.5 S or less; and/or an aluminium substrate containing magnesium at 0.5 to 10.0% by weight is used.

Abstract: The invention relates to improvements in an electrophotographic sensitive member having a photoconductive layer formed with amorphous silicon produced by glow discharge decomposition or sputtering. An electrophotographic sensitive member is formed by laminating an amorphous silicon barrier layer and an amorphous photoconductive layer successively on an electrically conductive substrate, the first mentioned layer containing an impurity of Group IIIa of Periodic Table of Elements, or nitrogen and impurity of Group IIIa of same Table, and also containing oxygen within a range of 0.1 to 20.0 atomic % at the point of the layer and in a progressively decreasing pattern throughout the rest thereof. Constructed as such, the photosensitive member has an increased photosensitivity to near-infrared beams, a large charge-holding capability, and low-rate dark attenuation characteristics. In addition, it is less expensive to manufacture.

Abstract: The invention relates to improvements in an electrophotographic sensitive member having a photoconductive layer formed with amorphous silicon produced by glow discharge decomposition or sputtering. An electrophotographic sensitive member is formed by laminating an amorphous silicon barrier layer and an amorphous photoconductive layer successively on an electrically conductive substrate, the first mentioned layer containing an impurity of Group IIIa of Periodic Table of Elements, or nitrogen and impurity of Group IIIa of same Table, and also containing oxygen within a range of 0.1 to 20.0 atomic % at the point of the layer and in a progressively decreasing pattern throughout the rest thereof. Constructed as such, the photosensitive member has an increased photosensitivity to near-infrared beams, a large charge-holding capability, and low-rate dark attenuation characteristics. In addition, it is less expensive to manufacture.

Abstract: The present invention relates to an electrophotographic sensitive member for use in a laser line printer and a method of producing same.

Abstract: A reading apparatus including a first group of photo-detection units, the first group of photo-detection units including a first plurality of photo-detection units each including a photo-detector constituted by a photodiode and an electric charge storage capacitor connected in parallel therewith, and an analog switch connected in series with the photo-detector thus constituted, a second group of photo-detection units, the second group of photo-detection units including a second plurality of photo-detection units each also including a photo-detector constituted by a photo-diode and an electric charge storage capacitor connected in parallel therewith, and an analog switch connected in series with the photo-detector thus constituted, the second plurality of photo-detection units being substantially equal in number to the first plurality of photo-detection units, a control system for rendering the switches conductive successively one at at time, a first common line for commonly delivering detecting signals from t

Abstract: A thermal head composed of an electrically insulative substrate, a resistive film made of TiO.sub.x (0<x<2) formed on the substrate, and an electrode made of a metal such as Au, Al, and Cu etc. The resistive film is produced by an electron beam vapor deposition method employing an apparatus having a vacuum chamber wherein an evaporation source composed of Ti is irradiated with an electron beam to evaporate Ti so as to deposit a resultant TiO.sub.x on the substrate.

Abstract: A thermal head composed of an electrically insulative substrate, a resistive film made of TiO.sub.x (0<x<2) formed on the substrate, and an electrode made of a metal such as Au, Al, and Cu etc. The resistive film is produced by an electron beam vapor deposition method employing an apparatus having a vacuum chamber wherein an evaporation source composed of Ti is irradiated with an electron beam to evaporate Ti so as to deposit a resultant TiO.sub.x on the substrate.