摘要:
The structure of gonadotropic hormone of an invertebrate (Asterina pectinifera) was elucidated. The gonadotropic hormone is a peptide with molecular weight 4500 to 4900 composed of two subunits, wherein the structure of the protein has the structure bound by SS bridges formed between SH residues of cysteines contained in the subunits. Mixing and oxidizing these two subunits after their synthesis enables to give a peptide (gonadotropic hormone) with gonad-stimulating activity.
摘要:
Upon writing, a portion of light emitted from light-emitting devices of a light-emitting and light-receiving head 2 is deflected by a half mirror and is then allowed to pass through a first lens array to achieve optical writing on a rotating or moving photoreceptor. Upon reading, on the other hand, light reflected by an original is allowed to pass through a second lens array and then to enter the half mirror. The light is then allowed to pass through the half mirror to the light-emitting and light-receiving head 2 and is hence read by reading devices of the light-emitting and light-receiving head.It is therefore possible to perform writing and reading while the light-emitting and light-receiving head and the optical system remain stationary. No mechanism is therefore needed for moving the light-emitting and light-receiving head, thereby making it possible to provide a scanner-equipped electrophotographic printing machine having small dimensions and high resolution.
摘要:
A multifunctional printer includes a printing portion for printing data on a print medium, a read head for reading data on a read medium, and an enclosed medium carrying passage. The printing portion comprises an electrophotographic record portion. The enclosed medium carrying passage is disposed so as to surround the printing portion and is capable of transferring both the print medium and the read medium. A reversing portion is disposed on the enclosed medium carrying passage to turn the medium upside down. With the arrangement of this multifunctional printer, it is possible to perform double-sided printing on the printed medium and to perform double-sided reading on the read medium. It is also possible to make a multifunctional small-sized printer.
摘要:
A multifunctional printer includes a printing portion for printing data on a print medium, a read head for reading data on a read medium, and an enclosed medium carrying passage. The printing portion comprises an electrophotographic record portion. The enclosed medium carrying passage is disposed so as to surround the printing portion and is capable of transferring both the print medium and the read medium. A reversing portion is disposed on the enclosed medium carrying passage to turn the medium upside down. With the arrangement of this multifunctional printer, it is possible to perform double-sided printing on the printed medium and to perform double-sided reading on the read medium. It is also possible to make a multifunctional small-sized printer.
摘要:
A color ink ribbon has a plurality of color areas and a plurality of black areas alternatively arranged on the ribbon in longitudinal direction thereof and each having a length greater than the width of the ribbon. The color areas are each subdivided in width into a plurality of strip-like areas each being impregnated with or coated with ink of particular color, i.e., yellow, magenta or cyan. The black areas are each impregnated with or coated with black ink over the entire width thereof. A color printer using the ribbon has a print head provided with heating elements which are arranged on an area corresponding to the entire width of the ribbon. The black areas of the ribbon are provided with a greater width than the color areas, so that black image data may be printed out continuously or on a plurality of lines at a time without the ribbon being fed.
摘要:
A serial printer head is provided which comprises a sandwich structure (1,3,5) of a first circular yoke plate (1), a cylindrical magnet (3) and a ring shaped second yoke plate (5); a plurality of electromagnets (2,4) positioned on the first yoke plate (1) at predetermined angle intervals; an armature-print-needle assembly (7,8,9,10) having a circular resilient spring (7), a plurality of armatures (8) and a plurality of print needles (9) placed on the sandwich structure (1,3,5) so that the sandwich structure (1,3,5), electromagnets (2,4) and the armatures (8) provide first a substantially closed magnetic path; and an adjusting yoke (12) attached to the sandwich structure (1,3,5). The adjusting yoke (12) has the magnetic characteristics that the magnetic reluctance increases as the temperature increases. Although the flux generated by the permanent magnet (3) is changed due to the change of the temperature, that flux change is compensated for by the presence of the adjusting yoke (12).
摘要:
A small printer is provided which comprises a housing, a rolled printing paper mounted in the housing, a platen along which a paper runs, a motor, and a carriage having a printing head for mosaic printing on a paper on the platen. The carriage travels along the whole width of the paper and is driven by the motor, and a paper transfer mechanism transfers the paper by one line for every traverse of the carriage. The paper transfer mechanism comprises an idler positioned beneath the path of the paper, the idler being swingable in the moving direction of the paper, and the idler having a first projection parallel to the path of the carriage at the left half of the idler and a second projection inclined to the path of the carriage at the right half thereof. The projections are engaged with the corresponding slots provided at the bottom of the carriage to ensure the swing movement of the idler is synchronized with the movement of the carriage. The idler has a substantially V-shaped friction member providing a large frictional force to the paper in the normal moving direction of the paper and a small frictional force to the paper in the opposite moving direction of the paper.
摘要:
By using a bioluminescence, a method for detection of a monovalent cation is provided and the method is a high sensitive and simple method. According to the present invention, an amino acid sequence of symplectin and a base sequence encoding the protein are provided. Symplectin is a photoprotein derived from Symplectoteuthis oualaniensis (okinawan squid). By using the photoprotein of the present invention, a monovalant cation can be detected by luminescence in the presence of a chromophore.
摘要:
A copier, scanner, or printer has serial scanning and/or printing heads. A uniform relative motion is maintained in a longitudinal direction between the head(s) and the scanning and/or printing media. The head(s) move cyclically back and forth at an acute angle to the longitudinal direction, so that each scanning element and/or each printing element scans or prints a pixel line perpendicular to the longitudinal direction. The acute angle and the rate of relative uniform motion are preferably adjustable according to the width of the area to be scanned or printed. For color copying, scanning, or printing, the scanning and/or printing elements are grouped according to color, and are aligned so that the same pixel lines are scanned or printed in different colors.
摘要:
An electrophotographic recording apparatus containing a scanner is provided with a common medium receptacle unit adapted to insert media such as an original document and a print sheet, and/or a cassette for accommodating media, and a separator mechanism adapted for separating the media depending on whether they are to be fed between a light emitting/intercepting head and a photoconductor or between a transfer assembly and the photoconductor. The media may be selectively fed between the light emitting/intercepting head and the photoconductor or between the transfer assembly and the photoconductor in accordance with whether originals or printing sheets to be read.