Abstract: A toner case according to the present invention includes a toner supplying portion, a screw portion 50 and a supporting portion 53. The toner supplying portion is arranged at a case body 31 to supply the toner to an apparatus main body. The screw portion 50 includes a screw shaft 51 driven to rotate at an inside of the case body 31 and the conveying blade 52 formed on the screw shaft 51 and rotating with the screw shaft 51 so that the conveying blade 52 conveys the toner to the toner supplying portion. Around the supporting portion 53, a portion of the conveying blade 52 is arranged. The supporting portion 53 is arranged closer to an inside of the case body 31 than a side wall 31a of the case body 31 and configured to support an end portion of the screw shaft 51.

Abstract: A peripheral surface of a pressing roller in a fixing device has a pair of drive transmission surface portions and a paper passing surface portion. The drive transmission surface portions are respectively formed at both end portions of the pressing roller in an axial direction to transmit rotational driving force of the pressing roller to the fixing belt. The paper passing surface portion is positioned between the pair of drive transmission surface portions and has a dynamic friction coefficient lower than that of the drive transmission surface portion. It is determined whether a slip of the fixing belt occurs based on a difference between temperatures detected by a first temperature sensor that detects the temperature of the drive transmission surface portion and a second temperature sensor that detects the temperature of the paper passing surface portion. Thereby, even a slight slip of the fixing belt 42 is reliably detected.

Abstract: A peripheral surface of a pressing roller in a fixing device has a pair of drive transmission surface portions and a paper passing surface portion. The drive transmission surface portions are respectively formed at both end portions of the pressing roller in an axial direction to transmit rotational driving force of the pressing roller to the fixing belt. The paper passing surface portion is positioned between the pair of drive transmission surface portions and has a dynamic friction coefficient lower than that of the drive transmission surface portion. It is determined whether a slip of the fixing belt occurs based on a difference between temperatures detected by a first temperature sensor that detects the temperature of the drive transmission surface portion and a second temperature sensor that detects the temperature of the paper passing surface portion. Thereby, even a slight slip of the fixing belt 42 is reliably detected.

Abstract: An agitating mechanism according to one aspect of the present disclosure is disposed in a toner container in which toner is stored. The agitating mechanism includes a rotation shaft member. The rotation shaft member is configured to support an agitating member that agitates the toner. The rotation shaft member is provided, together with the agitating member, in the toner container so as to be rotatable. The rotation shaft member has a through hole that passes through the rotation shaft member in a first direction orthogonal to a rotation axis direction.

Abstract: A toner case according to the present invention includes a toner supplying portion, a screw portion 50 and a supporting portion 53. The toner supplying portion is arranged at a case body 31 to supply the toner to an apparatus main body. The screw portion 50 includes a screw shaft 51 driven to rotate at an inside of the case body 31 and the conveying blade 52 formed on the screw shaft 51 and rotating with the screw shaft 51 so that the conveying blade 52 conveys the toner to the toner supplying portion. Around the supporting portion 53, a portion of the conveying blade 52 is arranged. The supporting portion 53 is arranged closer to an inside of the case body 31 than a side wall 31a of the case body 31 and configured to support an end portion of the screw shaft 51.

Abstract: A toner container according to one aspect of the present disclosure is a toner container to be detachably mounted on an image forming apparatus. The toner container includes a container body, a pair of guide portions, and a storage portion. The container body contains toner. The pair of guide portions are provided on a bottom surface of the container body and allow the container body to be guided in a mounting direction toward a mounting position that allows toner to be supplied from the container body to the image forming apparatus. The storage portion is attached at a predetermined position between the pair of guide portions on the bottom surface of the container body. The storage portion stores information about toner contained in the container body.

Abstract: A toner case includes a case main body and an agitating member. The case main body contains a toner. The agitating member agitates the toner contained in the case main body by rotating along an inner surface of the case main body. A rib is protruded on the inner surface of the case main body along a rotation direction of the agitating member. The agitating member is provided with a slit extending along the rotation direction and located at a position corresponding to the rib.

Abstract: An agitating mechanism according to one aspect of the present disclosure is disposed in a toner container in which toner is stored. The agitating mechanism includes a rotation shaft member. The rotation shaft member is configured to support an agitating member that agitates the toner. The rotation shaft member is provided, together with the agitating member, in the toner container so as to be rotatable. The rotation shaft member has a through hole that passes through the rotation shaft member in a first direction orthogonal to a rotation axis direction.

Abstract: A toner container according to one aspect of the present disclosure is a toner container to be detachably mounted on an image forming apparatus. The toner container includes a container body, a pair of guide portions, and a storage portion. The container body contains toner. The pair of guide portions are provided on a bottom surface of the container body and allow the container body to be guided in a mounting direction toward a mounting position that allows toner to be supplied from the container body to the image forming apparatus. The storage portion is attached at a predetermined position between the pair of guide portions on the bottom surface of the container body. The storage portion stores information about toner contained in the container body.

Abstract: A toner case includes a case main body and an agitating member. The case main body contains a toner. The agitating member agitates the toner contained in the case main body by rotating along an inner surface of the case main body. A rib is protruded on the inner surface of the case main body along a rotation direction of the agitating member. The agitating member is provided with a slit extending along the rotation direction and located at a position corresponding to the rib.