Abstract: A paper feeding apparatus is provided with a pressing arm that presses the separator to a paper feed roller, a document guide that has a pair of guide parts for pressing a document to the paper feed roller, and a spring part that applies spring force to the pressing arm and the document guide. The guide parts are located at both edges of the separator. The document guide guides the document so that the front edge of the document passes over the paper feed roller, and presses the document to the paper feed roller.

Abstract: A paper feeding apparatus is provided with a pressing arm that presses the separator to a paper feed roller, a document guide that has a pair of guide parts for pressing a document to the paper feed roller, and a spring part that applies spring force to the pressing arm and the document guide. The guide parts are located at both edges of the separator. The document guide guides the document so that the front edge of the document passes over the paper feed roller, and presses the document to the paper feed roller.

Abstract: A facsimile machine includes a main body having a facsimile unit. A document roller that feeds a document is provided in the main body. A sheet feed roller that feeds a recording paper is also provided in the main body. The document roller and the sheet feed roller have a substantially identical shape and are made of a substantially identical material. The document roller and the sheet feed roller have a first side surface and a second side surface opposite to the first side surface. The first side surface has a hole configured to be engaged with a shaft that transmits a drive force and the second side surface has an engaging piece configured to be engaged with a one-way clutch.

Abstract: A primary object of the present invention is to easily and securely fix a photocatalyst to a substrate. According to the invention, there is provided a process for preparing a photocatalyst material, the process comprising a first step of forming an undercoating containing silica gel on a substrate, a second step of bringing titanium tetrachloride into contact with the undercoating and a third step of heat-treating the coated substrate.

Abstract: A communication apparatus for information comprises a recording roller for feeding a recording paper. A line-type recording head is operative for recording an image on the recording paper. Normally, the recording head presses the recording paper against the recording roller. A first releasing mechanism is operative for allowing relative movement of the recording head and the recording roller away from each other. A reading roller is operative for feeding a document sheet. A reading head is operative for reading information from the document sheet. The reading head is located near the recording head. Normally, the reading head presses the document sheet against the reading roller. A second releasing mechanism is operative for allowing relative movement of the reading head and the reading roller away from each other. First and second side plates are located respectively at opposite sides of the recording roller, the recording head, the reading roller, and the reading head.

Abstract: A facsimile apparatus having a casing with a handset arranged on one side of the casing. The network control section is disposed adjacent to the handset within the casing. The power supply section is disposed within but on an opposite side of the casing as the network control section so as to avoid the electromagnetic interference by components of the power supply section with components of the network control section.

Abstract: The facsimile apparatus includes a casing with a handset arranged on a side thereof. Within the casing are disposed a network control section adjacent the handset and a power supply section opposite the network control section. A control board is arranged above the network control and power supply sections. The control board includes an analog signal control section adjacent to the network control section, a driving control section adjacent to the power supply section for driving a preselected electrical part, and a digital signal control section between the analog signal control section and the driving control section.

Abstract: A facsimile apparatus is provided which includes a casing, a system control unit for controlling a facsimile operation, an optical system, reading facsimile data of a transmit document, arranged below the system control unit within the casing, and a document feeding path, provided above the system control unit, for feeding the transmit document to a reading station where the optical system reads the facsimile data of the transmit document. These arrangements provide a compact structure of the facsimile apparatus.

Abstract: A method of operating a heat pump having at least one circuit for circulation of a refrigerant comprising a compressor, a once-through path, complete counterflow type condenser as a high-temperature heat output means, an expansion valve and a low-temperature heat output means (evaporator or a segregated low-stage circuit for circulation of a lower-boiling-point refrigerant), which comprises choosing a supercool degree, which is equal to the difference between a saturation temperature and an outlet temperature of the refrigerant, to satisfy the conditions that a temperature effectiveness of refrigerant liquid as defined by the formula: ##EQU1## is at least 40% and the temperature difference of the denominator is at least 35.degree. C. As a result, boiling water of ca. 100.degree. C. or other high-temperature fluids can be discharged with a large temperature difference.

Abstract: The invention provides a method of disposing of polychlorinated biphenyls without causing a health hazard to the public in which the polychlorinated biphenyls are converted into harmless and useful compounds. This is accomplished by the hydrogenation-dechlorination thereof.