Abstract: A reading unit provided with an optical system mounted on a recording apparatus to read a source document includes a housing having the optical system in it, a light transmitting portion arranged on the outer surface of the housing of the reading unit in order to guide the light outside the reading unit into the optical system of the reading unit, and a protection member to cover the outer side of the light transmitting portion for opening and closing such portion freely. With the structure thus arranged, the reading unit is protected from ink mist and other particles created by the recording apparatus that may contaminate the reading unit, hence preventing the accuracy of reading signals from being lowered when reading is performed by means of this reading unit.

Abstract: A printing apparatus includes traveling means for traveling in the recording directions by holding it for recording on a recording medium, guiding means for guiding the traveling means, and reading means detachably held by the guiding means. This printing apparatus further includes electrical connectors provided for the reading means and printing apparatus, respectively, for electrically connecting them, which are arranged to be installed or removed simultaneously by the operation of mounting the reading means on or demounting it from the guiding means, and also, detecting means for detecting a state of the reading means being mounted on the printing apparatus, controlling means for holding the power-supply to the traveling means and recovery means for recovering the performance of the recording means in a state of being cut off in accordance with the detection of the detecting means when the reading means is mounted on the printing apparatus.

Abstract: A recording apparatus in which a recording head for effecting recording on a recording medium can be carried on a carriage movable with a reading unit for performing an original reading operation carried thereon, including a white flat plate member removable provided at a location opposed to the reading unit and along an area in which the carriage is moved. A reading unit for use in a recording apparatus in which a recording head unit for effecting recording on a recording medium and the reading unit for reading the image of an original are selectively interchangeable relative to a reciprocally movable carrier, including original image reading means constituting a predetermined reading optical path entering and reflected by the surface of the original to read the image of the original, and a movable member having reference correction means for reading moved to a position on the reading optical path corresponding to the surface of the original when the carrier is in a predetermined position.

Abstract: A container for storably receiving an ink jet cartridge for an ink jet recording apparatus includes a recording head section for discharging ink from a plurality of ink discharging orifices and an ink storing section. The container includes a holding member for firmly holding the ink jet cartridge at a predetermined position in the container, a capping member for sealably covering the ink discharging orifices therewith while the ink jet cartridge is firmly held in the container, a pump for sucking ink from the ink discharging orifices for activating the ink jet cartridge, and a waste ink chamber having an ink absorber received therein for retaining the sucked ink. In addition, the container includes a squeezing member adapted to be actuated from the outside for deforming the ink absorber and an ink drain port.

Abstract: A plurality of electrostatic recording units (Y, C, M and B) are arranged in series along a recording medium moving path. Each electrostatic recording unit includes an electrostatic latent image carrier (48), a developing unit (54, 54') arranged on the upstream side of the electrostatic latent image carrier, and a cleaning unit (60) arranged on the downstream side. The developing unit includes a developer holding container (66) having a developer storage portion (70) and a developer agitating portion (76) located above the developer storage portion. The developer agitating portion is communicated with the developer storage portion via a communicating path (82). The cleaning unit (60) of one of the adjacent electrostatic recording units is disposed adjacent to the developer storage portion (70) of the developer holding container (66) composing a portion of the developing unit (54, 54') of the other electrostatic recording unit.

Abstract: A recovering mechanism includes a cleaning member for cleaning a discharge surface of an adjustable ink jet head and an inclination adjusting mechanism for adjusting an inclination of the cleaning member to match an inclination of a discharge surface of the ink jet head.

Abstract: A storage container for housing and storing an ink jet cartridge which has a recording head to discharge ink, and an ink tank to contain ink to be supplied to the recording head and which is structured to be exchangeable with respect to a recording apparatus comprises a capping member to be in contact with the ink discharge port surface of the recording head to cover the surface thereof and absorbing members conductively connected to the capping member to absorb ink which leaks from the recording head. With the capping member and absorbing member, an airtightness higher than that of the discharge ports is obtained in order to suppress the ink evaporation from the discharge ports of the recording head while the cartridge which is still in use is kept in the storage container.

Abstract: Provided is a method of treating humans or animals suffering from a condition or disease characterized by excessive collagen destruction, which comprises administering to said human or animal an effective amount of a 12a-deoxytetracycline represented by the following general formula ##STR1## The method is effective in the treatment of various articular diseases characterized by excessive collagen destruction.

Abstract: 2'-Deoxy-5-fluorouridine derivatives of the formula ##STR1## wherein, R.sup.1 is hydrogen atom or an acyl group and R.sup.2 and R.sup.3 are respectively hydrogen atom, an acyl group or a group of the formula ##STR2## wherein X.sup.1 and X.sup.2 are respectively oxygen atom or sulfur atom; R.sup.4 is a phenyl group, a benzyl group or a naphthyl group each of which may be substituted by an alkyl group, an alkoxyl group, an alkoxycarbonyl group, an alkylthio group, and acyl group, a halogen atom, trifluoromethyl group, nitro group, cyano group, carboxyl group and/or methylenedioxy group and R.sup.5 is an alkyl group, an alkenyl group or one of the groups represented by R.sup.4 which is the same as or different from R.sup.4, at least one of R.sup.2 and R.sup.3 being a group of the formula ##STR3## which exhibit excellent antitumour activities and have lower toxicity, methods of the production thereof and antitumour compositions containing said 2'-deoxy-5-fluorouridine derivatives.

Abstract: A mechanism for mounting the electromagnetic transducers, erasing heads and some of the tape guiding means for a VTR which employs a rotating head consisting of a fixture which closely encircles the cylindrical housing of the video transducer so that when the other components are attached to the fixture, all of the components will be properly positioned with respect to each other and can be mounted on the chassis as a unit. One of the tape guides may be rotatably mounted on the fixture in order to assist in withdrawing the tape from a cassette.

Abstract: A video tape cassette device of the type wherein the tape is stored in a cassette containing a supply spool and a take-up spool. The spools lie side-by-side on parallel axes, and the rotary video transducing head rotates about an axis parallel with the axes of the spools in the cassette.

Abstract: A sound dubbing control for a videotape recorder includes a mechanism which enables it to be automatically locked in operating condition when the playback control is subsequently actuated; the dubbing control is automatically released when the playback control is released. The dubbing control and playback control each include a slidable member one of which moves transversely with respect to the other and the member for the dubbing control is provided with a leaf spring having parallel arms. One of the arms has a hook-shaped end which catches on a projection on the playback member when the dubbing member is advanced into the path of the playback member. This action also causes the other arm of the spring to actuate a switch controlling the sound dubbing circuit.

Abstract: A video tape cassette of the type wherein a supply reel and a take-up reel are contained therein holds a magnetic video tape having transparent sections of tape at each end connected to a respectively one of the reels. A light-receiving element, or sensor, such as a phototransistor is incorporated into one of the positioning poles which enters into a cooperating opening in the cassette when it is put into position, and a light-emitting element, such as a light emitting diode is provided on the base outside of the cassette so that the end of the tape can be detected by the cooperative action of these two elements to automatically stop the running of the tape. Since the light-receiving element can be incorporated into the existing positioning pole, no additional space is required and the device can be incorporated into already existing video tape recorders. Obviously, the same results can be achieved if the phototransistor and light-emitting diode are interchanged.

Abstract: A mounting base to support and position a magnetic tape cassette on the chassis of a video tape recorder consists of a generally rectangular plate in which the supports for the cassette consist of marginal portions of the plate which are partially severed from the remainder of the plate and upwardly bent to contact the bottom of the cassette. The cassette is of the type in which the tape is carried by a pair of spools, and has an upwardly tiltable lid along one side to allow the tape to be withdrawn from operation. The cassette is first received in a mounting case which is vertically tiltably mounted on the recorder chassis. Spaces are provided in the base for the driving reels and the tape withdrawal mechanism of the recorder and when the case moves the cassette downwardly, the upwardly bent portions of the base plate flip open the lid and also properly level the cassette.