摘要:
An image forming apparatus with a left time informing function, which can accurately predict time required for finishing forming an image. The image forming apparatus with a left time informing function, has: a storage for storing data of various types of basic operation time for forming an image, therein; and a status management section for calculating and informing left time required for completing forming the image on the basis of the data stored in the storage, when a condition of forming the image is determined; wherein the basic operation time include print time corresponding to a single-sided mode and a double-sided mode, respectively, for every size of a transfer sheet, and interprocessing time for every postprocessing.
摘要:
A method for converting benzene and aromatic hydrocarbon compounds having 9 or more carbon atoms contained in a material oil having a boiling point of 30˜210° C. into toluene and aromatic hydrocarbon compounds having 8 carbon atoms in the presence of hydrogen and the said catalyst. The catalyst can be obtained by carrying at least one metal or metal compound selected from Group VIII and Group VIA of the Periodic Table on a carrier containing zeolites in which maximum diameter among diameters of its micropores is 0.6-1.0 nm and a ratio of SiO2/Al2O3 is 50 or more.
摘要:
A process for producing a fuel oil base material having a lower sulfur content than that of stock oil and a dry sludge content of 0.05 mass % or less, which involves hydrotreating the stock oil having a dry sludge content of 0 to 5.0 mass % and a sulfur content of 1.0 to 10 mass % in two stages is provided, wherein the temperature of first-stage hydrotreatment is 340.degree. to 450.degree. C. and the temperature of second-stage hydrotreatment is 200.degree. to 440.degree. C. and maintained at a temperature lower than the temperature of the first-stage hydrotreatment.
摘要:
A process for removing iron impurities, inter alia iron or iron compounds, from petroleum oil distillation residues is disclosed in which a high gradient magnetic separator incorporates a pack of ferromagnetic fillers in the form of a generally flat or curved sheet-like strip. The ferromagnetic filler is a Fe--Cr alloy of a selected composition and the strip is of selected geometric characteristics such that the rate of removal of iron impurities can be maintained substantially at a maximum throughout the separation mode of operation prior to and after washing of the ferromagnetic filler.
摘要:
An automatic two-sided recording apparatus having an image forming station to form an image on a recording sheet and a sheet feeder to feed the recording sheets onto the station, includes an intermediate stacker having an inlet through which a recording sheet whose one side has been subjected to recording is stacked thereon by a switchback member provided adjacent to the inlet. The inlet is used also an outlet through which the recording sheet is fed out for recording on the other side thereof by the switchback member through a conveyor. The apparatus further includes a controller that switches between a stackless mode in which the switchback member feeds in the recording sheets the stacker and feeds out onto the station without stacking in the stacker, and a stack mode in which the switchback member feeds in and feeds out from the stacker onto the station after stacking in the stacker. The apparatus further includes a measuring member to measure one copy cycle time in the course of an image forming on one side. The controller determines the number of recording sheets to be handled in the stackless mode and that of recording sheets to be handled in the stack mode, based on the copy cycle time measured and a preset copy quantity, and switches the modes in accordance with the determined number of sheets.
摘要:
An electric circuit provided with an abnormal condition detector for a motor, for use in a toner image forming apparatus, includes a current detection circuit for detecting a presence of a current when a power supply circuit is switched OFF; a test circuit for confirming a line connection between a control circuit and a switch by transmitting a test signal between the control circuit and the switch and a control circuit for determining an abnormal section causing an abnormal condition of a motor.
摘要:
Lubricant base oils are made up essentially of 2-15% by weight of a total aromatics content, greater than 60% by weight of isoparaffins and monocyclic naphthenes in total, more than 30% by weight of alkylbenzenes in the total aromatics content and smaller than 4% by weight of tricyclic and tetracyclic aromatics in the total aromatics content. The base oil has great viscosity index, small pour point, high oxidative stability and heat stability and sufficient capability to dissolve sludge.
摘要:
An electrophotographic copying machine capable of inserting an inter-sheet in a copy of a document. A width-detector is provided to detect the width of an inter-sheet contained in an inter-sheet tray. A judging circuit determines if the detected width of the inter-sheet is within an allowable width range. If the detected width is not within the allowable width range, the inter-sheet is inhibited from being fed and reminder information is displayed. If the inter-sheet is required to be blank with no image of the original recorded thereon, an automatic document feeder is controlled so as to stop feeding the original sheet while the inter-sheet is conveyed to be placed at the insert-page. The adjustment of copy image density, including scanning of the original sheet, is also stopped.
摘要:
The present invention provides a method for removing an iron content in a petroleum series mineral oil therefrom which comprises treating a petroleum series mineral oil fraction containing 5 ppm or more of the iron content by the use of a high gradient magnetic separator under conditions of the strength of a magnetic field being from 500 to 25,000 gauss, a temperature being from room temperature to 400.degree. C., and a linear velocity being 0.1 to 50 cm/second.
摘要:
A process for fluid catalytic cracking of a starting oil selected from the group consisting of a distillation residual oil, a solvent deasphalted oil derived therefrom and a hydrodesulfurized oil derived therefrom, which comprises withdrawing a part of catalyst particles circulating through a fluid catalytic cracking unit, sending the withdrawn catalyst particles by means of a carrier fluid selected from the group consisting of air, nitrogen, steam and the mixtures thereof at a rate of 0.01 to 100 meters/second in a particle concentration of 0.01 to 500 g/liter to a high gradient magnetic separator in which a ferromagnetic matrix is placed in a uniform high magnetic field to generate a high magnetic gradient around the matrix, thereby separating the withdrawn catalyst particles into a group of particles rendered magnetic by the deposition of at least one metal selected from the group consisting of nickel, vanadium, iron and copper which are contained in the starting oil and a group of non-magnetic particles; and returning the non-magnetic particles to the fluid catalytic cracking unit for re-use.