Abstract: A developing apparatus includes restriction member disposed midway of a route through which developer is delivered from a hopper to a supply roller. The restriction member restricts the amount of the developer to be supplied to the supply roller. The amount of developer supplied from the supply roller to a developing roller is limited by the provision of the restriction member. The developer on the surface of the developing roller is thinned or doctored by a developing blade and develops an electrostatic latent image on a carrier.

Abstract: A molten polyester sheet is solidified by cooling it on the surface of a mobile cooling medium on which a water film has been formed. The sheet is stretched at least 4.5-fold in overall stretching ratio in a longitudinal direction through a plurality of stretching steps. Since casting is conducted via the water film, water is absorbed in the surface layer and the interior of the cast sheet, thus facilitating orientation by stretching in the longitudinal direction and lowering the stretching temperature. As a result, stretching with a high stretching ratio can be attained by multi-stage stretching without conducting high-temperature stretching. Thus, this process can accelerate film formation, improve productivity, and provide a film having reduced unevenness in thickness, less surface roughness and excellent abrasion resistance.

Abstract: A printer includes a first paper feed passage extending from the rear of a platen to a printing position through the lower part of the platen, and a second paper feed passage extending from substantially just under the printing position to the printing position. A first pinch roller is disposed on the way to the first paper feed passage for pressing a first paper against the platen. The first paper is fed by rotating the platen. A second pinch roller is disposed on the way to the second paper feed passage for pressing the second paper against the platen. Rotation of the platen causes the second paper to be fed. In addition, a paper insertion device includes a flat part for placing a paper thereon and a slit for converting the advance direction of a paper from horizontal to vertical. With the second paper placed on the flat part and inserted into the printer, the paper is directed upwardly by a curved surface defining the slit and is allowed to enter the second paper feed passage with ease for further advance.

Abstract: A paper feeding control system of an automatic paper feeder has a setting device for enabling a position to head a printing medium to be reset. The setting device consists of a read/write enable nonvolatile memory for holding a reset value of the heading position of the printing medium. Upon taking in and setting the printing medium, an operating panel switch is operated to correct the heading position of the printing medium. In addition, the corrected value is again written in the memory, whereby the heading position of the printing medium can be corrected and altered.

Abstract: A carriage mechanism of a printer includes a carriage frame, a printed circuit board mounted on the carriage frame and having an exposed wiring portion and a plurality portion of guide holes, and a cable having at one end thereof an exposed wiring portion to be electrically connected to the exposed wiring portion of the printed circuit board. An inked ribbon feed mechanism has guide projections to be inserted into the guide holes and a plurality of elastic hooks for fastening to the carriage frame. A cable fixing mechanism includes a flexible film member to be superimposed over the end of the flexible cable and fixed thereto. One end of the flexible film member is shaped as the end of the flexible cable and the other end of the flexible film member is progressively narrower and projects toward a folded portion of the flexible cable.

Abstract: A printer includes a platen having a longitudinal axis and a printing head mounted in opposition to the platen. The guide shaft is mounted to extend parallel to the axis of the platen. A carriage supports the printing head and includes a carriage frame mounted on the guide shaft for movement axially therealong and for movement rotatably thereabout and a base plate having a first end integral with the carriage frame and a second end directed away therefrom. A guide plate is fixed at a position below the second end of the base plate and extends parallel to the guide shaft. A parallel link mechanism includes a fixing member attached to a lower surface of the second end of the base plate and a slider memebr connected to the fixing member. The slider member has a slot within which fits the guide plate, such that movement of the carriage axially of the guide shaft causes the parallel link mechanism and the second end of the base plate to be guided by the guide plate.

Abstract: A printer comprises a first paper feed passage extending from the rear of a platen to a printing position through the lower part of the platen, and a second paper feed passage extending from substantially just under the printing position to the printing position. A first pinch roller is disposed on the way to the first paper feed passage for pressing a first paper against the platen. The first paper is fed by rotating the platen. A second pinch roller is disposed on the way to the second paper feed passage for pressing the second paper against the platen. Rotation of the platen here causes the second paper to be fed. In addition, a paper insertion device according to the present invention includes a flat part for placing a paper thereon and a slit for converting the advance direction of a paper from horizontal to vertical.

Abstract: A method and apparatus for making axial-flow filters wherein a sectorial-shaped sheet of filter material having corrugations therein parallel to the curved ends thereof is made from a flat sheet of filter material in the first step, and thereafter the corrugated sheet is made into an annulus to obtain the final product. In the first step, an edge portion of a flat sheet of filter material is attached to a sectorial-shaped mold, having a mold surface defined by curved ridges and valleys parallel to the curved ends of the mold, so that the sheet is slanted up away from the mold surface from the smaller curved end of the mold. Thereafter a set of curved forming blades is moved down toward the mold to engage the sheet and to fold it successively and consecutively across the ridges of the mold and beneath the edges of the blades into the valleys of the mold to corrugate the sheet.