Abstract:
An image forming apparatus includes: a driving source including only a first driving motor and a second driving motor; a first transfer system that transfers a first driving force generated by the first driving motor; and a second transfer system that transfers a second driving force generated by the second driving motor. The first transfer system transfers the first driving force only to each image carrier and each developing roller. The second transfer system transfers the second driving force to at least a belt driving roller of an intermediate transfer unit, a fixing roller, and a sheet conveyance roller.
Abstract:
An image forming apparatus includes a housing with cover for covering and uncovering an opening in communication with an internal space. A drive portion generates a drive force that is transmitted intermittently by a clutch mechanism. The clutch mechanism includes a transmission member with first a transmission portion that receives a drive force from the drive portion and a second transmission portion that engages an image forming portion. A link mechanism reciprocates the transmission member in a first direction in which the transmission member moves away from image forming portion and a second direction opposite the first direction. A flexible link connects the cover to the link mechanism. The link mechanism coordinates with cover and moves the transmission member in the first direction when the cover uncovers the opening. The link mechanism coordinates with cover and moves the transmission member in the second direction when cover covers the opening.
Abstract:
A rotary arm restricts the rotation of a first sun gear or a second sun gear according to forward/reverse rotation drive of sheet discharge rollers. As a result, a rotating direction of a transmission gear coupled to the sheet discharge rollers is switched. If θ1A denotes a pressure angle of gear teeth of a gear portion of the first sun gear and θ2A denotes a pressure angle of gear teeth of a first planetary gear, a relationship of θ2A+0.5°≤θ1A≤θ2A+1.5° is satisfied.
Abstract:
A one-way clutch includes a first rotation member, a second rotation member, a support shaft, and a transmission member. The support shaft is disposed in a protruding manner from a first lateral surface portion of the first rotation member toward an interior space in the axial direction of a rotational shaft. The transmission member is supported by the support shaft, and can move in a sliding manner in the axial direction between a first position at which a rotational driving force in a first direction inputted to the first rotation member is transmitted to the second rotation member, and a second position at which a rotational driving force in the second direction inputted to the first rotation member is restricted from being transmitted to the second rotation member.
Abstract:
An image forming apparatus is provided. The image forming apparatus includes an outer housing, a cover openeably/closably mounted at the outer housing, an optical scanning device including a light transmissive member configured to transmit laser light, a cleaning member configured to clean the light transmissive member, and an interlocking mechanism. The interlocking mechanism moves the cleaning member in conjunction with opening/closing of the cover.
Abstract:
A liquid supply unit includes a first chamber, a second chamber, an opening/closing member, a biasing member, a pressing member and a flexible film member. The first chamber communicates with a liquid storage container, and the second chamber communicates with a liquid injection head. The opening/closing member changes a posture between a closing posture for closing a communication opening and an opening posture for opening it. The biasing member biases the opening/closing member in a direction toward the closing posture. The pressing member presses the opening/closing member in a direction toward the opening posture. The flexible film member is displaced based on a negative pressure generated in the second chamber. When a pressure receiving portion of the pressing member receives the displacement force from the flexible film member, the pressing member rotates about a pivot point and presses the opening/closing member against a biasing force of the biasing member.
Abstract:
A one-way clutch includes a first rotation member, a second rotation member, a support shaft, and a transmission member. The support shaft is disposed in a protruding manner from a first lateral surface portion of the first rotation member toward an interior space in the axial direction of a rotational shaft. The transmission member is supported by the support shaft, and can move in a sliding manner in the axial direction between a first position at which a rotational driving force in a first direction inputted to the first rotation member is transmitted to the second rotation member, and a second position at which a rotational driving force in the second direction inputted to the first rotation member is restricted from being transmitted to the second rotation member.
Abstract:
A sheet conveying device is provided with a housing including a contact portion, a sheet conveyance path, a drive roller, a driven roller, and a support member. The driven roller is made of a resin material, and is provided with a roller portion, and a pair of shaft portions. The support member is made of a metal material and rotatably supports the driven roller. The support member includes a pair of ring portions through which each of the shaft portions is inserted, and a pair of arm portions extending in one direction from the paired ring portions and supported on the housing. The driven roller is rotated with the drive roller in a state that a downstream outer portion of the ring portion in the conveying direction is contacted with the contact portion of the housing.
Abstract:
Provided is an inkjet recording apparatus that reduces clogging of nozzles, while at the same time avoid a decrease in productivity of the recording medium, and reduces situations in which the recording medium becomes stained due to the staining of opening portions and splashing due to ink ejected during flushing. A conveyor belt of the inkjet recording apparatus has a plurality of opening portion groups. The control unit determines the pattern of the plurality of opening portion groups used for flushing in one cycle of the conveyor belt according to the size of the recording medium. The control unit causes the recording medium to be supplied from the recording medium supply unit between the plurality of opening groups arranged in the conveying direction in the above pattern on the conveying belt and at positions separated from the opening portion groups by a specific distance or more.
Abstract:
A rotary arm restricts the rotation of a first sun gear or a second sun gear according to forward/reverse rotation drive of sheet discharge rollers. As a result, a rotating direction of a transmission gear coupled to the sheet discharge rollers is switched. If θ1A denotes a pressure angle of gear teeth of a gear portion of the first sun gear and θ2A denotes a pressure angle of gear teeth of a first planetary gear, a relationship of θ2A+0.5°≤θ1A≤θ2A+1.5° is satisfied.