Abstract: A developer supply container 1 detachably mountable to a developer supplying apparatus 201 includes a developer accommodating portion 2 capable of accommodating a developer, a discharge opening 4a for discharging the developer accommodated in the developer accommodating portion 2 toward the developer supplying apparatus 201, a pump portion 3a for effecting a discharging operation through the discharge opening 4a, a communicating portion 4d provided at a position contacting the discharge opening 4a and capable of storing a constant amount of the developer, and a regulating portion 7 capable of taking a developer flow regulating state in which the flow of the developer into the communicating portion 4d and a developer flow non-regulating state in which the entering of the developer is not regulated, the regulating portion 7 taking the developer flow regulating state in a discharging operation of the pump portion 3a, wherein the regulating portion 7 is provided with an air flow path 7g for communicating between

Abstract: A developer supply container 1 detachably mountable to a developer supplying apparatus 201 includes a developer accommodating portion 2 capable of accommodating a developer, a discharge opening 4a for discharging the developer accommodated in the developer accommodating portion 2 toward the developer supplying apparatus 201, a pump portion 3a for effecting a discharging operation through the discharge opening 4a, a communicating portion 4d provided at a position contacting the discharge opening 4a and capable of storing a constant amount of the developer, and a regulating portion 7 capable of taking a developer flow regulating state in which the flow of the developer into the communicating portion 4d and a developer flow non-regulating state in which the entering of the developer is not regulated, the regulating portion 7 taking the developer flow regulating state in a discharging operation of the pump portion 3a, wherein the regulating portion 7 is provided with an air flow path 7g for communicating between

Abstract: A developer supply container 1 includes a cylindrical portion 2k capable of accommodating a developer; a second discharge opening 4a, provided on the cylindrical portion 2k, for permitting discharge of the developer; a storage portion 4d provided in the cylindrical portion 2k and capable of storing a predetermined amount of the developer through the second discharge opening 4a; a pump portion 3a having a changeable inside volume of cylindrical portion 2k in a longitudinal direction of the supply container 1 to apply a pressure at least to the second discharge opening 4a; a fluid communication path 20a providing fluid communication between the pump portion 3a and the storage portion 4d; and a partition 20 provided in a connecting portion between the pump portion 3a and the fluid communication path 20a for suppressing flow of the air which is produced by pump portion 3a and which is directed to toward cylindrical portion 2k at least in a discharging operation.

Abstract: A developer supply container detachably mountable to a developer supplying apparatus includes a pump portion provided to act at least on said developer discharging chamber and having a volume changeable with expansion and contraction with reciprocation, the cam groove for converting the rotational force received by a gear into a force for decreasing the volume of pump portion, a cam groove for converting the received force into a force for increasing the volume of the pump portion, a cam groove not converting the received force for operating the pump portion, and a phase detecting portion for stopping the rotation of a feeding portion using one of said cam grooves.

Abstract: A developer supply container is detachably mountable to a developer supplying apparatus and includes a pump portion provided to act at least on a developer discharging chamber. The pump portion has a volume changeable with expansion and contraction with reciprocation. A cam groove is provided for converting a rotational force received by a gear into a force for decreasing the volume of pump portion, a cam groove is provided for converting the received force into a force for increasing the volume of the pump portion, and a cam groove is provided for not converting the received force for operation of the pump portion. The supplying apparatus includes a phase detecting portion for stopping the rotation of a feeding portion of the developer supply container using one of the cam grooves.

Abstract: Provided is a developer replenishing container including: a developer containing part capable of containing a developer; a discharge port through which the developer contained in the developer containing part is discharged; a conveyance part conveying the developer in the developer containing part by rotating; and a displacement part displaceable in conjunction with rotation of the conveyance part in the developer in a vicinity of the discharge port, and including a moving member capable of reciprocating in conjunction with the rotation of the conveyance part and a biasing member which biases the moving member and which is expandable according to movement of the moving member.

Abstract: A developer supply container and a developer supplying system include a feeding portion 2c for feeding a developer T in a developer accommodating portion 2 toward a developer discharging portion 4c in accordance with rotation, a gear portion 2d for receiving a rotational force for rotating a feeding portion 2c, a pump portion 3a provided to act at least toward the developer discharging portion 4c and having a volume with changes with reciprocation, a drive converting portion for converting the rotational force inputted to the gear portion 2d into a force for operating the pump portion 3a, a reciprocating member 3b provided at the drive converting portion and reciprocable to convert to the rotational force into a force for operating the pump portion 3a, a rotation regulating portion 3f for regulating movement in a direction crossing with a direction in which the reciprocating member 3b reciprocates, an elastically deformable urging portion 3g1, 3g2, provided on the reciprocating member 3b, for urging the recip

Abstract: A developer supply cartridge includes a developer supply container. The developer supply container includes a developer accommodation section, a developer in the developer accommodation section, a discharging port configured to discharge the developer toward a developer supply apparatus, a pump unit configured to perform an exhaust operation through the discharging port, a developer storage section configured to store a certain amount of developer before discharge, the developer storage section communicating with the developer accommodation section and being in contact with the discharging port, and a suppression part configured to control inflow and suppression of inflow of the developer from the developer accommodation section to the developer storage section and suppress the inflow of the developer during the exhaust operation of the pump unit. The developer has a compressibility Ct of 30.0% or more and 45.0% or less.

Abstract: A developer supply container and a developer supplying system include a feeding portion 2c for feeding a developer T in a developer accommodating portion 2 toward a developer discharging portion 4c in accordance with rotation, a gear portion 2d for receiving a rotational force for rotating a feeding portion 2c, a pump portion 3a provided to act at least toward the developer discharging portion 4c and having a volume with changes with reciprocation, a drive converting portion for converting the rotational force inputted to the gear portion 2d into a force for operating the pump portion 3a, a reciprocating member 3b provided at the drive converting portion and reciprocable to convert to the rotational force into a force for operating the pump portion 3a, a rotation regulating portion 3f for regulating movement in a direction crossing with a direction in which the reciprocating member 3b reciprocates, an elastically deformable urging portion 3g1, 3g2, provided on the reciprocating member 3b, for urging the recip

Abstract: A developer supply container 1 detachably mountable to a developer supplying apparatus 201 includes a developer accommodating portion 2 capable of accommodating a developer, a discharge opening 4a for discharging the developer accommodated in the developer accommodating portion 2 toward the developer supplying apparatus 201, a pump portion 3a for effecting a discharging operation through the discharge opening 4a, a communicating portion 4d provided at a position contacting the discharge opening 4a and capable of storing a constant amount of the developer, and a regulating portion 7 capable of taking a developer flow regulating state in which the flow of the developer into the communicating portion 4d and a developer flow non-regulating state in which the entering of the developer is not regulated, the regulating portion 7 taking the developer flow regulating state in a discharging operation of the pump portion 3a, wherein the regulating portion 7 is provided with an air flow path 7g for communicating between

Abstract: A developer supply container detachably mountable to a developer supplying apparatus includes a pump portion provided to act at least on said developer discharging chamber and having a volume changeable with expansion and contraction with reciprocation, the cam groove for converting the rotational force received by a gear into a force for decreasing the volume of pump portion, a cam groove for converting the received force into a force for increasing the volume of the pump portion, a cam groove not converting the received force for operating the pump portion, and a phase detecting portion for stopping the rotation of a feeding portion using one of said cam grooves.