摘要:
There is provided a developer recovery device including: a casing; a recovery member disposed along an edge portion of the aperture portion; a sealing member disposed along an edge portion at a conveyance direction upstream side of the aperture portion; a moving section that moves the recovery member and the sealing member between a position of being touched against the developer-bearing member and a position of being apart from the developer-bearing member; a suction section that sucks the developer separated from the developer-bearing member into the casing; and a filter that is long in the length direction of the aperture portion and that is disposed in the casing between the aperture portion and the suction section with an inclination such that a lower portion of the filter is further away from the aperture portion than an upper portion of the filter.
摘要:
There is provided a developer recovery device including: a casing; a recovery member disposed along an edge portion of the aperture portion; a sealing member disposed along an edge portion at a conveyance direction upstream side of the aperture portion; a moving section that moves the recovery member and the sealing member between a position of being touched against the developer-bearing member and a position of being apart from the developer-bearing member; a suction section that sucks the developer separated from the developer-bearing member into the casing; and a filter that is long in the length direction of the aperture portion and that is disposed in the casing between the aperture portion and the suction section with an inclination such that a lower portion of the filter is further away from the aperture portion than an upper portion of the filter.
摘要:
An image forming apparatus includes a transfer member onto a front side of which an image is transferred, a rotary member around which the transfer member is wrapped, a guide member provided at an end portion of an axial direction of the rotary member, a regulating member, a first reference mark, a second reference mark, a first detector, a second detector, and a controller. The regulating member is located on a reverse side of the transfer member, and restricts skew of the transfer member by contacting the guide member. The first and second reference marks are on edge sides of the transfer member in the axial direction of the rotary member. The first and second detectors detect the first and second reference marks, respectively. The controller controls alignment of the image on the transfer member in accordance with a detection result of the first and second detectors.
摘要:
An image forming apparatus includes a transfer member onto a front side of which an image is transferred, a rotary member around which the transfer member is wrapped, a guide member provided at an end portion of an axial direction of the rotary member, a regulating member, a first reference mark, a second reference mark, a first detector, a second detector, and a controller. The regulating member is located on a reverse side of the transfer member, and restricts skew of the transfer member by contacting the guide member. The first and second reference marks are on edge sides of the transfer member in the axial direction of the rotary member. The first and second detectors detect the first and second reference marks, respectively. The controller controls alignment of the image on the transfer member in accordance with a detection result of the first and second detectors.
摘要:
There is provided an image forming apparatus including: a transfer-receiving member onto which developer images are transferred and superimposed in sequence by switching over plural developing units that develop latent images on a latent image holding body with a developer to form developer images; a primary transfer section that primary transfers the developer image on the latent image holding body onto the transfer-receiving member; a secondary transfer section that secondary transfers the developer image on the transfer-receiving member onto a recording medium; and a selection section that selects a combination of a first process speed for the primary transfer and a second process speed for the secondary transfer according to the number of developing units employed.
摘要:
A removable unit includes an endless belt-like member; a first contact member that contacts an inner surface of the belt-like member; a second contact member disposed upwardly of the first contact member in a direction of gravitational force when the removable unit is mounted to a body of an image forming apparatus; a first cleaning member disposed between the first contact member and the second contact member; and a second cleaning member disposed between the first cleaning member and the second contact member. The first cleaning member prevents an adherent cleaned off by the second cleaning member from moving downward in the direction of gravitational force along an inner peripheral surface of the belt-like member.
摘要:
A drive includes a driving shaft that includes a distal end portion having a screw hole at a distal end and being inserted into a hollow portion from a first end of a driving roller in a rotation-axis direction, and that transmits a rotational driving force to the driving roller through a fit portion; a spring washer arranged at a second end of the driving roller opposite to the first end in the rotation-axis direction; and a screw rod that has an external thread which is screwed into the screw hole, that is inserted into the spring washer and inserted into the hollow portion from the second end, and that pinches the driving roller between the screw rod and the fit portion of the driving shaft in the rotation-axis direction through the spring washer when the external thread is screwed into the screw hole.
摘要:
An intermediate transfer device includes an intermediate transfer member, intermediate transfer member support members, and two frame members each including first and second positioning members each having a positioning portion. At least one of the frame members satisfies a condition L1:L2=2.85:x 0≦x≦1, where L1 is the length of a line segment connecting an intersection point to the positioning portion of one of the positioning members on a side opposite to a side toward which a line of action of a force applied by a second-transfer unit is inclined and L2 is the length of a line segment connecting the intersection point to the positioning portion of the other of the positioning members on the side toward which the line of action is inclined, the intersection point being an intersection of the line of action and a line segment connecting the positioning portions.
摘要:
An image forming apparatus includes an image forming unit that forms an image to be formed on a recording medium. The image formed by the image forming unit has a size larger than a size of the recording medium that is transported, the image forming unit causing the image to adhere to the entire area of the recording medium. A width of the image in a direction substantially orthogonal to a transporting direction of the recording medium increases from a front end toward a rear end of the recording medium in the transporting direction of the recording medium.
摘要:
A first parameter correlated with a degree of a variation in the output from the air-fuel ratio sensor is calculated. A possible range of a second parameter representing a degree of a variation in air-fuel ratio among the cylinders is determined based on the first parameter. The first parameter is calculated with an air-fuel ratio of a predetermined cylinder forcibly changed. A difference between the unchanged first parameter and the forcibly changed first parameter is determined. A first characteristic representing a relation between the second parameter and the difference is determined based on the possible range of the second parameter and the difference. One of the determination value and the first parameter calculated before the forced change is corrected based on inclination of the determined first characteristic.