Abstract: An antenna device including: an antenna module for performing communication at a predetermined communication frequency; a base having conductivity, the base including a first surface and a first recess, the first recess accommodating the antenna module and being disposed on the first surface; a radome that is a dielectric, the redome including a second surface facing the first surface of the base and a second recess which faces the first recess and is disposed on the second surface; and a waterproof structure for waterproofing the antenna module, the waterproof structure being disposed between the first surface and the second surface. The antenna module includes one or a plurality of antenna elements, and an antenna surface on which the one or plurality of antenna elements are disposed. The antenna module is accommodated in the first recess to cause the antenna surface to project from the first surface into the second recess.

Abstract: An object of the invention is to provide a display device of an image forming apparatus capable of displaying information that the user wants to obtain in a visually easy-to-recognize manner. In a compound image forming apparatus provided with: one of original reading means for reading image information from an original, image receiving means for receiving image information from a terminal connected to a network and a line image receiving means for receiving image information from a telephone line; image forming means for forming an image based on the image information obtained by the means; and a display portion for displaying the condition of the apparatus, a display condition control portion is provided that changes the display condition of the display portion to a visually easy-to-recognize condition when the condition of the compound image forming apparatus is changed.

Abstract: When an image reading section reads an original color document a confidential portion of which is prepared in a specific color, an image processing apparatus receives authentication information such as a password from an operation section, and thereby compares the received authentication information with user information stored in a storage section so as to perform authentication. When the authentication is not completed, a controlling section issues an output stop instruction for the specific color to a color restricting section. The color restricting section deletes a specific color portion in the image data received from the image reading section. The image data the specific color portion of which is deleted is transmitted to an image forming section, and then printed out on recording paper.

Abstract: An object of the invention is to provide a display device of an image forming apparatus capable of displaying information that the user wants to obtain in a visually easy-to-recognize manner. In a compound image forming apparatus provided with: one of original reading means for reading image information from an original, image receiving means for receiving image information from a terminal connected to a network and a line image receiving means for receiving image information from a telephone line; image forming means for forming an image based on the image information obtained by the means; and a display portion for displaying the condition of the apparatus, a display condition control portion is provided that changes the display condition of the display portion to a visually easy-to-recognize condition when the condition of the compound image forming apparatus is changed.

Abstract: A synthesis experiment automation system is provided with a robot, which transports synthesis reaction containers from a reaction container rack to a dispensing/separation position of a dispensing and separation device, and transports the synthesis reaction containers to a predetermined position in a temperature regulator unit of a reaction device, where a reaction is carried out under previously set experiment conditions; and with a computer, which controls the actions of the robot and the operations of the dispensing and separation device and the reaction device in accordance with a plurality of previously set experiment conditions. Accordingly, the synthesis experiment automation system is capable of simultaneously performing a plurality of different experiments as complex as those usually performed by researchers, and, moreover, has a large number of possible experiment operations, and can easily be improved and/or extended.

Abstract: An object of the invention is to provide a display device of an image forming apparatus capable of displaying information that the user wants to obtain in a visually easy-to-recognize manner. In a complex image forming apparatus provided with: one of original reading means for reading image information from an original, image receiving means for receiving image information from a terminal connected to a network and a line image receiving means for receiving image information from a telephone line; image forming means for forming an image based on the image information obtained by the means; and a display portion for displaying the condition of the apparatus, a display condition control portion is provided that changes the display condition of the display portion to a visually easy-to-recognize condition when the condition of the complex image forming apparatus is changed.

Abstract: An object of the invention is to provide a display device of an image forming apparatus capable of displaying information that the user wants to obtain in a visually easy-to-recognize manner. In a complex image forming apparatus provided with: one of original reading means for reading image information from an original, image receiving means for receiving image information from a terminal connected to a network and a line image receiving means for receiving image information from a telephone line; image forming means for forming an image based on the image information obtained by the means; and a display portion for displaying the condition of the apparatus, a display condition control portion is provided that changes the display condition of the display portion to a visually easy-to-recognize condition when the condition of the complex image forming apparatus is changed.

Abstract: An object of the present invention is to provide an image forming apparatus for forming images which are always and stably high quality regardless of changes of ambient conditions. In the image forming apparatus, a counter electrode is disposed facing a toner holder for holding at least one color toner, to generate a potential difference between the toner holder and the counter electrode by use of various types of power supplies. Between the toner holder and the counter electrode, a counter electrode is interposed, which is provided with a plurality of gates disposed on an insulating substrate and electrode groups respectively disposed around the plurality of gates. According to the potential difference between the toner holder and the counter electrode, it is controlled whether or not the toner is caused to pass through the gates. In the image forming apparatus, a resistance value of a cleaning member is detected for removing the toner stuck on the control electrode.

Abstract: An object of the present invention is to provide an image forming apparatus for enabling toner to easily pass through gates of control electrode and increasing the scattering efficiency of the toner to improve the printing quality. Since a sticking force between the toner and toner holder or among particles thereof is weakened and the toner is held on the toner holder with a slight binding force between the toner holder and the control electrode, a voltage applied for enabling the toner to pass through the gates of the control electrode and scatter toward the counter electrode can be minimized as long as the toner can pass through the gates of the control electrode. In other words, a pulse is applied to a shielded electrode just before the toner held on the toner holder passes through the gates of the control electrode, so that the sticking force between the toner and the toner holder or among particles thereof can be weakened, or the toner can be transformed into cloud-like particles.

Abstract: In a digital printer as an image forming device, a high voltage is applied to a counter electrode exclusively when the counter electrode is covered with a sheet of paper having a good insulating property, so that a strong electric field necessary for image formation is generated between the counter electrode and a toner carrier. When the counter electrode is not covered with a sheet of paper, a high voltage relay provided between the counter electrode and a high voltage power source is turned OFF so that the application of the high voltage to the counter electrode is suspended, so that the strong electric field is not generated. By doing so, it is possible to surely avoid discharge which tends to occur between the counter electrode and the toner carrier or between the counter electrode and the control electrode.

Abstract: A reference voltage generating circuit generates +5 V and +24 V as the reference voltages, based on the voltage from the commercial power supply, i.e., AC 100 V. This reference voltage generating circuit supplies +5 V and +24 V to various operating circuits. The reference voltage of the +5 V system is supplied to a logic circuit portion and a voltage applying device. The reference voltage of the +24 V system is supplied to a control electrode voltage source for generating the voltage to be applied to the control electrode, a fixing lamp operating portion for generating the voltage to activate heater as a part of the fixing unit, and a motor operating portion for driving motors for driving various driving devices.

Abstract: An image forming apparatus has a toner carrier roller, a back electrode which is located so as to face the toner carrier roller, a voltage source for applying a voltage which generates an electric field for making toner fly from the toner carrier roller to the back electrode, a control electrode which has many openings through which the toner is allowed to pass and first and second conductive layers formed around the openings and is formed so that at least portions of the first and second conductive layers which surround the openings do not overlap each other in a direction where the toner flies from the toner carrier roller to the back electrode, and a voltage source for applying a voltage which controls the toner passing through the opening according to an image signal. As a result, an electrostatic capacity is hardly formed between the first conductive layer and the second conductive layer, thereby suppressing a fall in response characteristic to the toner flying control due to the electrostatic capacity.

Abstract: A charging member comprised of a conductive shaft and conductive fibers planted thereon is brought into contact with a charged member with a photoconductor provided on the surface thereof. The conductive shaft is applied with a combined voltage of d.c. voltage and a.c. voltage having a peak-peak value lower than two times the discharge starting threshold voltage that is determined by the surrounding atmosphere around the charged member. While the charging member and the charged member rotate at different surface velocity, the charged member is charged through the contact area in which impedance is low due to the influence of a.c. voltage, so that a stable surface potential close to the d.c. voltage may be charged onto the charged member. Further, it is effective that the frequency f of the a.c. voltage will be so set up as to suffice a relation: f>Vp/2R, where f is a frequency of the applied a.c. voltage, Vp(mm/s) is a moving velocity of the charged member, and R(mm) is a particle size of a developer used.

Abstract: The invention is directed to an apparatus for an electrophotographic process, equipped with a charging device of a contact type using a conductive roller or brush, and the charging device used therefor.

Abstract: Novel phenylazonaphthol derivatives, e.g., 4-(4'-nitro-2'-sulfophenylazo)-1-naphthyl-N-acetyl-.beta.-D-glucosaminide sodium salt, are excellent substrates for determining N-acetyl-.beta.-D-glucosaminidase (NAG) activity in urine collected from the patient with renal disorders. The substrate has high water solubility, is not affected by interferences in urine and provides a simple method for determination of NAG activity which is suited for both rate and endpoint assays.

Abstract: Novel compounds represented by the following general formula (1) and salts thereof: ##STR1## wherein n represents an integer of 3 to 4, R.sup.1 represents ##STR2## or --SO.sub.2 R.sup.2, and R.sup.2 represents optionally branched lower alkyl group having 1 to 6 carbon atoms, phenyl group, benzyl group or tolyl group, which are useful as substrate for use in the measurement of biological components; a substrate for use in the measurement of biological component which comprises said novel compound or salt thereof; and a method for measuring biological component which comprises using said substrate.

Abstract: In a cleaning device for a blanket cylinder in an offset lithographic printing press, there are provided a power-rotated cleaning disc having a front surface partly in contact with the cylindrical surface of the blanket cylinder, a tank associated with the cleaning disc for storing and supplying a predetermined quantity of a cleaning liquid to the cleaning disc, and a lateral feed mechanism for driving the cleaning disc in reciprocating motion transversely along the cylindrical surface of the blanket cylinder, whereby the latter surface is cleaned while the blanket cylinder is rotated at a low speed.