Abstract: A printing apparatus is provided which has an eject guide capable of guiding print mediums of different thicknesses, that have been transported there, to a nip portion of the eject rollers of the fixed diameters. To this end, the eject guide is pivotally supported at one end thereof on the platen. The eject guide is positioned with the other end engaged with the chassis. In this state, as the platen moves the eject guide pivots.

Abstract: A neutralizing device for an electric-insulating sheet comprising at least two neutralizing units provided on the moving route of an electric-insulating sheet at intervals in the moving direction of the sheet, each neutralizing unit having a first electrode unit disposed on the first surface side of the sheet and a second electrode unit disposed on the second surface side of the sheet, the first electrode unit having a first ion generating electrode, the second electrode unit having a second ion generating electrode disposed facing the first ion generating electrode, wherein, in each neutralizing unit, the first ion generating electrode and the second ion generating electrode are so related as to be given a dc inter-ion-generating-electrode potential difference, and, when a total number of the neutralizing units is n (n: integer of at least two), the inter-ion-generating-electrode potential difference in at least n/4 (fractional portion rounded up) neutralizing units out of n neutralizing units and the inter-

Abstract: Disclosed are a varnish for laminate or prepreg, comprising a heat treatment product which is obtained by mixing together (a) an epoxy resin, (b) dicyandiamide, and (c) a compound having an imidazole ring so that the component (c) is present in an amount of 0.001 to 0.03% by weight, based on the weight of the component (a), and subjecting the resultant mixture to reaction for heat treatment in an organic solvent at a temperature of 70° C. to less than 140° C. so that all of the components are compatible with one another in the absence of a solvent; and (d) inorganic filler, a laminate or prepreg prepared using the varnish and a printed wiring board prepared using the laminate and/or prepreg.

Abstract: At least two sets of ion-generating means are provided to face each other through a space having an insulating sheet. The first and second surfaces of the sheet are simultaneously irradiated with monopolar ion clouds substantially opposite to each other in polarity generated from the ion-generating means. The sheet is subsequently irradiated with monopolar ion clouds reverse in polarity to that of the previously applied ion clouds, to eliminate the positive and negative charges of both the surfaces of the insulating sheet.

Abstract: A printing apparatus is provided which has an eject guide capable of guiding print mediums of different thicknesses, that have been transported there, to a nip portion of the eject rollers of the fixed diameters. To this end, the eject guide is pivotally supported at one end thereof on the platen. The eject guide is positioned with the other end engaged with the chassis. In this state, as the platen moves the eject guide pivots.

Abstract: A recording apparatus includes a feeding section configured to feed a recording sheet, a first conveyance roller which conveys the recording sheet fed from the feeding section to a recording area and conveys the recording sheet during a recording operation, a recording section configured to record an image on the recording sheet at the recording area downstream from the first conveyance roller in the direction of feeding the recording sheet, a conveyance rate detection unit configured to detect the conveyance rate of the recording sheet conveyed by the first conveyance roller, a recording sheet end detection unit disposed downstream from the first conveyance roller and detects the end part of the recording sheet, and a correction unit configured to correct the conveyance rate of the recording sheet conveyed by the first conveyance roller based on a result detected by the conveyance rate detection unit.

Abstract: An original document feed tray 11 is positioned above an original document output tray 15. When an original document is set on the original document feed tray, the original document feed tray is upwardly moved from a home position by a tray drive mechanism 24 to position the uppermost original document sheet at an original document transportable position at which the original document can be transported to an original document transport mechanism 12.

Abstract: A burden on a user when changing sheets such as with an ink jet printer and the like is reduced, and the necessary stack space is secured without considering the step difference up to the mounting surface of an ejected paper tray worth of the amount of curls for sheets that easily curls such as post cards and the like. Thus, enlargement of the apparatus and increase in the manufacturing cost are suppressed, and is easily adopted for low cost type for mass consumption.

Abstract: This invention provides a small and simple construction to drive a mechanism for maintaining a printing performance of a print head. In one preferred mode of the invention, a recovery device to maintain the printing performance of the print head has a suction pump unit, a capping unit and a wiping unit. The suction pump unit is driven through a spring clutch mechanism by an LF motor in the print sheet transport unit as a drive source. The capping unit and the wiping unit are driven by an AP motor as a drive source in a rotary dead zone set for a paper feed unit that feeds the print sheet to a transport unit. A piston pump is suited for use in a recovery operation to maintain the function of the print head.

Abstract: Disclosed are a varnish for laminate or prepreg, comprising a heat treatment product which is obtained by mixing together (a) an epoxy resin, (b) dicyandiamide, and (c) a compound having an imidazole ring so that the component (c) is present in an amount of 0.001 to 0.03% by weight, based on the weight of the component (a), and subjecting the resultant mixture to reaction for heat treatment in an organic solvent at a temperature of 70° C. to less than 140° C. so that all of the components are compatible with one another in the absence of a solvent; and (d) inorganic filler, a laminate or prepreg prepared using the varnish and a printed wiring board prepared using the laminate and/or prepreg.

Abstract: Disclosed are a varnish for laminate or prepreg, comprising a heat treatment product which is obtained by mixing together (a) an epoxy resin, (b) dicyandiamide, and (c) a compound having an imidazole ring so that the component (c) is present in an amount of 0.001 to 0.03% by weight, based on the weight of the component (a), and subjecting the resultant mixture to reaction for heat treatment in an organic solvent at a temperature of 70° C. to less than 140° C. so that all of the components are compatible with one another in the absence of a solvent; and (d) inorganic filler, a laminate or prepreg prepared using the varnish and a printed wiring board prepared using the laminate and/or prepreg.

Abstract: The present invention discloses a process for producing a benzoxazine resin which comprises the steps of reacting a phenol compound, an aldehyde compound and a primary amine in the presence of an organic solvent to synthesize a benzoxazine resin and removing generated condensation water and the organic solvent from a system under heating and a reduced pressure, wherein a pressure in the reaction system at the time of removal is set to 260 mmHg or higher.

Abstract: The present invention discloses a thermosetting resin composition which comprises (A) 35 to 75 parts by weight of a thermosetting resin comprising a compound having a hydrobenzoxazine ring as a main component, (B) 10 to 25 parts by weight of a polycondensation product of a phenol, a compound having a triazine ring and an aldehyde, and (C) 10 to 45 parts by weight of an epoxy resin, based on 100 parts by weight of the total amount of organic solid components of Components (A), (B) and (C), and (i) a bisphenol F epoxy resin having a weight-average molecular weight of 1,000 to 3,000, or (ii) a mixed epoxy resin of bisphenol F epoxy resin and bisphenol A epoxy resin having a weight average molecular weight of 1,000 to 3,000, is contained in Component (C) in an amount of 0 to 100% by weight of Component (C); and a prepreg, a laminated board for a wiring board and a wiring board using the same.

Abstract: For eliminating waste of ink and achieving high charging efficiency with a reduced charging time where a printing head is equipped with a second tank for reserving a predetermined amount of ink and a supply system is configured to supply ink from a first tank to the second tank intermittently, the second tank is provided with a variable internal volume. The internal volume is varied to cause the second tank itself to function as an actuator for charging ink and performing a venting process. Specifically, the internal volume is forcibly reduced to cause a reverse flow of a gas residing in the second tank along with ink into the first tank, which makes it possible to generate of waste ink that is released to the outside. A normal charging operation can be completed simply by causing a change in the opposite direction (the direction of increasing the internal volume). Relatedly, the second tank may be provided with a member for holding ink and generating a negative pressure originating from an elastic force.

Abstract: A head recovery device for an ink jet recording apparatus is provided with a pigment ink discharge port for discharging pigment ink and a dye ink discharge port for discharging dye ink. The device comprises a pigment ink cap for capping the pigment ink discharging port and a dye ink cap for capping the dye ink discharge port, and, in a predetermined recovery operation, a preliminary discharge is executed from the dye ink discharge port to the pigment ink cap.

Abstract: An ink jet recording apparatus includes a cap capable of moving in approaching and receding directions against and away from a discharge port surface of a recording unit for covering the discharge port surface, a wiper sliding while contacting with the discharge port surface to wipe the discharge port surface to clean it, a wiper driving gear for transferring drive to the wiper, a cam and gear member equipped with a cam portion for controlling the movement of the cap and a gear portion for transferring drive to the wiper driving gear, in which the cam and gear member is configured so that the gear portion engages with the wiper driving gear after the cap has moved to a position where the cap does not interfere with the wiper. By such a configuration, both of the capping operation and wiping operation can be controlled with the single cam and gear member, which makes it possible to miniaturize a recovery mechanism portion for maintaining and recovering the ink discharging performance of the recording unit.

Abstract: At least 2 sets of ion-generating means are provided to face each other through a space having an insulating sheet, and the first and second surfaces of the sheet are simultaneously irradiated with monopolar ion clouds substantially opposite to each other in polarity generated from the ion-generating means and subsequently irradiated with monopolar ion clouds reverse in polarity to that of the previously applied ion clouds, to eliminate the positive and negative charges of both the surfaces of the insulating sheet.

Abstract: An ink tank is formed having a generally rectangular parallelepiped shape, and air/fluid separating members having air pores are provided around at least the corner portions of the generally rectangular parallelepiped. The inner faces of wall members forming the outer faces of the generally rectangular parallelepiped are formed with an inclination of a predetermined angle as to the outer face of the wall member which it faces.

Abstract: This invention provides a small and simple construction to drive a mechanism for maintaining a printing performance of a print head. In one preferred mode of the invention, a recovery device to maintain the printing performance of the print head has a suction pump unit, a capping unit and a wiping unit. The suction pump unit is driven through a spring clutch mechanism by an LF motor in the print sheet transport unit as a drive source. The capping unit and the wiping unit are driven by an AP motor as a drive source in a rotary dead zone set for a paper feed unit that feeds the print sheet to a transport unit. A piston pump is suited for use in a recovery operation to maintain the function of the print head.

Abstract: In a supply system which includes an ink container for reserving a predetermined amount of ink to be supplied to a printing head and which is configured such that ink is intermittently supplied to the container from an ink tank, there is provided a structure that fundamentally eliminates waste of ink associated with an operation of charging the container to apply a required negative pressure to the head. An ink containing body in which a negative pressure can be generated because of its elasticity is provided in the container. After the ink containing body is expanded to introduce ink into the same by depressurizing the interior of the container, the interior of the container is pressurized to contract the ink containing body, thereby returning a predetermined amount of ink to the tank. A negative pressure is thus generated in equilibrium with an ink meniscus holding ability of the head.