Abstract: An image forming apparatus includes an apparatus main body, a connector portion, and a developer housing container. The connector portion is located on the apparatus main body and includes a first input/output terminal. The developer housing container is removably mounted to the developing device. The developer housing container includes container body that houses a developer to be replenished to the developing device and a storage unit mounted to an outer surface of the container body. The storage unit includes a second input/output terminal for electrical connection to the first input/output terminal. In a state where the developer housing container is mounted to the developing device, the developer housing container has a posture changeable between: a first posture where the second input/output terminal is separated from the first input/output terminal, and a second posture where the second input/output terminal contacts the first input/output terminal to be electrically connected.

Abstract: An image forming apparatus includes an apparatus main body, a connector portion, and a developer housing container. The connector portion is located on the apparatus main body and includes a first input/output terminal. The developer housing container is removably mounted to the developing device. The developer housing container includes container body that houses a developer to be replenished to the developing device and a storage unit mounted to an outer surface of the container body. The storage unit includes a second input/output terminal for electrical connection to the first input/output terminal. In a state where the developer housing container is mounted to the developing device, the developer housing container has a posture changeable between: a first posture where the second input/output terminal is separated from the first input/output terminal, and a second posture where the second input/output terminal contacts the first input/output terminal to be electrically connected.

Abstract: An image forming apparatus includes a fixing unit, an image reading unit, and a control unit. The fixing unit includes a first roller, a second roller, and a displacement mechanism that displaces at least one of the first roller and the second roller to form a nip portion. The image reading unit includes a scanning mechanism that scans by moving a carriage where a light source is mounted. The control unit executes a driving of the scanning mechanism and a driving of the displacement mechanism at different times.

Abstract: An image forming apparatus includes a fixing unit, an image reading unit, and a control unit. The fixing unit includes a first roller, a second roller, and a displacement mechanism that displaces at least one of the first roller and the second roller to form a nip portion. The image reading unit includes a scanning mechanism that scans by moving a carriage where a light source is mounted. The control unit executes a driving of the scanning mechanism and a driving of the displacement mechanism at different times.

Abstract: An image forming apparatus includes a toner storage member which includes a substrate portion and which supplies a toner, a terminal portion and a determination portion. The substrate portion is one substrate which includes a remaining amount detection portion and a memory. The remaining amount detection portion includes a detection circuit which outputs a voltage corresponding to the remaining amount of toner. The memory stores an output value (empty output value) of the detection circuit when the toner storage member is in an empty state. The determination portion compares the empty output value with the output value of the detection circuit to determine whether or not the toner storage member is in the empty state.

Abstract: An image forming apparatus includes a toner storage member which includes a substrate portion and which supplies a toner, a terminal portion and a determination portion. The substrate portion is one substrate which includes a remaining amount detection portion and a memory. The remaining amount detection portion includes a detection circuit which outputs a voltage corresponding to the remaining amount of toner. The memory stores an output value (empty output value) of the detection circuit when the toner storage member is in an empty state. The determination portion compares the empty output value with the output value of the detection circuit to determine whether or not the toner storage member is in the empty state.

Abstract: An image reading device includes a contact glass having a document placing surface, an index part to be an index for aligning a corner of a document to a reference point within the document placing surface, a reading portion configured to read the document, and a light emitting portion configured to emit linear light extending in a main scanning direction. When a predetermined point apart from the index part within the document placing surface is set as the reference point, the light emitting portion moves in a sub-scanning direction so that a region of the contact glass irradiated with the linear light coincides with the predetermined point, and emits the linear light.

Abstract: An image reading device includes a contact glass having a document placing surface, an index part to be an index for aligning a corner of a document to a reference point within the document placing surface, a reading portion configured to read the document, and a light emitting portion configured to emit linear light extending in a main scanning direction. When a predetermined point apart from the index part within the document placing surface is set as the reference point, the light emitting portion moves in a sub-scanning direction so that a region of the contact glass irradiated with the linear light coincides with the predetermined point, and emits the linear light.

Abstract: A line filter includes a flat plate-shaped cable and a flat core. A through hole is formed in the core. The cable includes: a first penetrating portion which enters the through hole in the core from an inlet of the through hole and is passed through an outlet of the through hole; a second penetrating portion which enters the through hole in the core from the inlet of the through hole and is passed through the outlet of the through hole; and a first connecting portion which connects the first penetrating portion on a side of the outlet of the through hole to the second penetrating portion on a side of the inlet of the through hole not through the through hole. When viewed in a normal direction of a main surface of the core, the second penetrating portion overlaps with the first penetrating portion at least partially.

Abstract: A magnet is arranged on an RFID tag to be attached to a cartridge. A Hall element is arranged on a printer-side RFID board in a position corresponding to the magnet. When the cartridge is mounted, a printer-side RFID communication section identifies whether or not the mounted cartridge is a certified product according to classification information stored on the RFID tag and a presence/absence of a detection signal from the Hall element.

Abstract: In a case where a qualified cartridge is not mounted, a toner supply controller stops driving of a toner supply motor. A controller calculates the toner density in a toner tank in accordance with a detection signal of a TC sensor to determine whether the toner density is within an allowable range. In a case where the toner density is out of the allowable range, the toner supply controller allows the toner supply motor to start driving. After that, in a case where the toner density in the toner tank becomes high, a cartridge mounting status determining section determines that a non-qualified cartridge is mounted. On the other hand, in a case where the toner density in the toner tank does not change or becomes lower, the cartridge mounting status determining section determines that the cartridge is not yet mounted.

Abstract: A magnet is arranged on an RFID tag to be attached to a cartridge. A Hall element is arranged on a printer-side RFID board in a position corresponding to the magnet. When the cartridge is mounted, a printer-side RFID communication section identifies whether or not the mounted cartridge is a certified product according to classification information stored on the RFID tag and a presence/absence of a detection signal from the Hall element.

Abstract: In a case where a qualified cartridge is not mounted, a toner supply controller stops driving of a toner supply motor. A controller calculates the toner density in a toner tank in accordance with a detection signal of a TC sensor to determine whether the toner density is within an allowable range. In a case where the toner density is out of the allowable range, the toner supply controller allows the toner supply motor to start driving. After that, in a case where the toner density in the toner tank becomes high, a cartridge mounting status determining section determines that a non-qualified cartridge is mounted. On the other hand, in a case where the toner density in the toner tank does not change or becomes lower, the cartridge mounting status determining section determines that the cartridge is not yet mounted.

Abstract: To provide a color image forming device that is capable of reducing the power consumption and unnecessary consumption of toners without deteriorating the productivity of a printing job. Provided is a color image forming device which includes a power control part 150 which controls switching of a mode from a normal power supply mode to a power saving mode when a power-saving shift time T1 or T2 has passed during a standby state; a printing mode switching part 101f for switching a single-color printing mode and a full-color printing mode; and an initial printing mode setting part 101g for setting an initial printing mode at the time of supplying a power source to one of the printing modes, wherein a different power-saving shift time T1 or T2 is set depending on the printing mode that is initially set by the initial printing mode setting part 101g.

Abstract: The paint composition for under coating of the present invention comprises 60 to 90% by weight of an epoxy polyol resin optionally together with a hardener therefor and 10 to 40% by weight of silica particles. Said epoxy polyol resin is obtained by reacting an optionally substituted glycidyl-etherified product of an alkylene oxide adduct of a dihydric phenol with a phosphorus acid having at least one P--OH bond, an ester or a salt thereof to thereby give a precondensate, reacting said precondensate with a dihydric phenol to give an epoxy resin of a high molecular weight, and further reacting said epoxy resin with a compound having an amino group capable of reacting with an epoxy group. Said silica particles comprise a primary particle having an average particle size of 1 to 10 m.mu., a surface area of 270 m.sup.2 /g or above and a concentration of silanol groups on the particle surface of 0.25 mM/100 m.sup.2 or above.

Abstract: A coating composition comprising the reaction product obtained by reacting an epoxy resin with a polynuclear polyhydroxy phenol having adjacent hydroxy groups, polyol esters of polyhydroxy phenolic carboxylic acids having adjacent hydroxy groups or a phosphorus compound.

Abstract: A coating composition comprises(A) a polyol resin obtained by the reaction of a prepolymer of epoxy resin and phosphorus compound having at least one P--OH bond, such as acids of phosphorus, and one or more compounds having one or more amino groups reactive with the epoxy group,(B) a compound having more than one isocyanate groups or groups which change to isocyanate groups under hardening condition, and(C) a bituminous material and/or its substitute.This coating composition can be coated on rusty metal surfaces.

Abstract: A coating composition which comprises(A) a polyol resin obtained by the reaction of a prepolymer of epoxy resin and polyhydroxy penolic compound such as(i) poly-nuclear polyhydroxy phenols having adjacent hydroxy groups(ii) polyol esters of polyhydroxy phenolic carboxylic acids having adjacent hydroxy groups, and(iii) a mixture thereof, and one or more compound having one or more amino groups reactive with epoxy group;(B) a compound having more than one isocyanate group or groups which change to isocyanate groups under hardening condition, and(C) a bituminous material and/or its substitute.This coating composition can be coated on rusty metal surfaces.

Abstract: A coating composition comprising the reaction product obtained by reacting an epoxy resin with a polynuclear polyhydroxy phenol having adjacent hydroxy groups, polyol esters of polyhydroxy phenolic carboxylic acids having adjacent hydroxy groups or a phosphorus compound.

Abstract: A coating composition comprises(A) a polyol resin obtained by the reaction of a prepolymer of epoxy resin and phosphorus compound having at least one P--OH bond, such as acids of phosphorus, and one or more compounds having one or more amino groups reactive with the epoxy group,(B) a compound having more than one isocyanate groups or groups which change to isocyanate groups under hardening condition, and(C) a bituminous material and/or its substitute.This coating composition can be coated on rusty metal surfaces.