Abstract: In a head drive unit of ink-jet recorder and the like, for the purpose of reducing amount of data for head driving waveform and data processing time, a time data at a point where an electric current changes and an electric current data are stored in time data storage means and electric current data storage means, and the time data is compared with a count data of an address counter. The electric current data is then output to drive a head, when the data matches as a result of the comparison.

Abstract: A simulated moving bed separation system is provided, in which a fluid circulation flow path can be washed for a short time. This system is provided with a circulation flow path having two or more packed beds connected in series and endlessly to each other, with desorbing-charging inlet, extract draw-out port, feedstock introducing port and raffinate draw-out port arranged in this order in the direction of flow of a circulation liquid, which are allowed to intermittently shift in the direction while being kept in this order, and with packed bed-washing pipes, valves and pumps. A desorbing liquid is introduced through the desorbing liquid introducing port into the circulation flow path. An extract rich in a strongly adsorptive constituent to be separated is drawn out through the extract draw-out port.

Abstract: A simulated moving bed chromatographic separation system for separating from a feedstock the constituents thereof, comprising packed beds filled with separating fillers, is provided, by which the separation performance of the packed beds can be evaluated without removing the packed beds from the circular fluid passage. This system is further provided with the circular fluid passage having at least four packed beds connected in series and endlessly to each other, a desorbing liquid introducing port, an extract draw-out port for drawing out the extract containing a larger amount of a constituent strongly adsorbed on the fillers, of constituents contained in a feedstock from the circular fluid passage, a feedstock introducing port for introducing the feedstock into the fluid circulating passage, and a raffinate draw-out port for drawing out the raffinate containing a larger amount of a constituent weakly adsorbed on the fillers, of the constituents.

Abstract: An IC is configured by using a circuit form comprising a CMOS and also a new current inverter element, thereby to reduce current consumption of ICs having a function of converting an output from a photodiode or the like to a voltage and a function of amplifying the output.

Abstract: A method of manufacturing a semiconductor detector for detecting light and radiation comprises the steps of providing a first semiconductor substrate of a first conductivity type, attaching a second substrate to the first semiconductor substrate through an insulating film, grinding the first semiconductor substrate from a surface thereof to a predetermined thickness, forming a MOS transistor on the ground surface of the first semiconductor substrate, removing the second substrate, and forming electrodes on the first semiconductor substrate for forming a depletion layer.

Abstract: The process for preparing mevalonolactone compounds is carried out by means of batch system chromatography or a simulated moving bed chromatographic process using columns filled with an optical resolution filler comprising a polysaccharide derivative.

Abstract: By increasing/deceasing electric energy per unit time supplied to heat energy generation means arranged in a liquid chamber having a nozzle, the amount of the ink emitted from the nozzle can be changed to correct a difference in dot diameter which occurs nozzle by nozzle and a change in dot diameter with time and to permit gradational printing.

Abstract: In the simulated moving bed chromatographic separation process, preferably using a simulated moving bed chromatographic separation apparatus with rotary valves and/or check valves, a supercritical fluid is used as an eluent and thereby efficiency in separation and operation is remarkably improved and the concentration step after the chromatographic separation is not required.

Abstract: A method of assembling complex wire harnesses wherein sub-assemblies of relatively simple circuits are made, terminals attached to the ends of each circuit, and the terminals are inserted into connectors. Each circuit is tested for integrity and, thereafter, the various circuits are placed together on a positioning board and bound with tape.

Abstract: A recording apparatus has a recording operation that is performed after a disposable liquid ejection recording head is mounted. The discrimination is made as to whether the recording head mounted is proper or not relative to the main assembly to which the recording head is mounted, when the main switch is actuated or the recording head is mounted. The discrimination is made with use of a part of a structure in the recording head: a temperature sensor, a temperature keeping heater, an ejection heater or a driving semiconductor function element, for example. If it is not proper, the recording operation is prevented, and/or the improperness is displayed.

Abstract: An information processing apparatus, or an image recording apparatus, utilizing a CPU and a memory and capable of improving the throughput of data processing is disclosed. When the CPU does not make access to the memory, the bus between the CPU and the memory is disconnected and the bus between the memory and a data reception buffer or a recording device is established, so that the data transfer between the memory and the data reception buffer or the recording device can be conducted in parallel to the function of the CPU.

Abstract: A particulate aromatic or araliphatic carbamate of a polysaccharide having a mean particle diameter of 1 to 200 .mu.m and a specific surface area of 0.5 to 300 m.sub.2 /g is prepared by first dissolving an aromatic or araliphatic carbamate of a polysaccharlde in an organic solvent, adding a hydrocarbon having 4 to 22 carbon atoms in an amount of 0 to 0.5 time by volume of that of the organic solvent, gradually adding the resultant solution to a sufficiently agitating aqueous surfactant solution, removing the organic solvent while continuing the agitation, isolating solid particles, and washing and drying the solid particles. The particulate aromatic or araliphatic carbamate of a polysaccharide has an excellent capability of resolution and, as such, can be used as a stationary phase of preparative liquid chromatography without being supported on a support.