摘要:
Conveyance speed of recording materials by a fixing roller pair can be set to conveyance speed based on detected results of a recording material detector and a loop detecting sensor, and information on the recording material that has been stored in a memory in advance, and the conveyance speed of the fixing roller pair is set so that loop length of the recording material will be a lower limit length, after the loop detecting sensor detects a loop of the recording material, and before the rear end of the recording material passes through the transfer roller pair.
摘要:
Conveyance speed of recording materials by a fixing roller pair can be set to conveyance speed based on detected results of a recording material detection means and a loop detecting sensor, and information on the recording material that has been stored in a memory in advance, wherein the conveyance speed of the fixing roller pair is set so that loop length of the recording material will be a lower limit length, after the loop detecting sensor detects a loop of the recording material, and before the rear end of the recording material passes through the transfer roller pair.
摘要:
The present invention relates to a image forming member comprising a first sheet conveying member arranged at upstream side of a sheet conveying path of a sheet material, a second sheet conveying member arranged at downstream side of said sheet conveying path, a guide member which is provided between said first and said second sheet conveying members and guides said sheet material and a movable portion which is provided in said guide member and executes front-and-far-side adjustment of said sheet material by moving a portion against which the tip of said sheet material is abutted in parallel to a sheet width direction perpendicular to a conveying direction.
摘要:
An image forming apparatus includes an electrode member to prevent the generation of an image defect in the image forming apparatus, in which the electrode member is provided in the downstream side of a transfer device, the transfer device and a fixing device are arranged while brought close to each other, and the sheet is sandwiched by the fixing device while sandwiched and conveyed by an image bearing device and the transfer device.
摘要:
An image forming member has a first sheet conveying member arranged at upstream side of a sheet conveying path of a sheet material, a second sheet conveying member arranged at downstream side of said sheet conveying path, a guide member which is provided between the first and the second sheet conveying members and guides the sheet material and a movable portion which is provided in the guide member and executes front-and-far-side adjustment of the sheet material by moving a portion against which the tip of sheet material is abutted in parallel to a sheet width direction perpendicular to a conveying direction.
摘要:
An image forming apparatus includes an image bearing member which bears a toner image; transfer means which forms a transfer nip portion while being in contact with the image bearing member, the transfer means which sandwiches and conveys a recording material with the image bearing member in the transfer nip portion, which transfers the toner image to the recording material; fixing means in which the recording material is sandwiched in a fixing nip portion where a first fixing member and a second fixing member are in contact with each other, the fixing means fixes the toner image to the recording material; and an electrode member which is provided between the transfer means and the fixing means, wherein the recording material is sandwiched and conveyed by the fixing means while sandwiched and conveyed by the transfer means, a length d (mm) of a shortest straight line connecting a center of the transfer nip portion and a center of the fixing nip portion in a direction in which the recording material is conveyed satisfies 0 (mm)
摘要:
An image forming apparatus has transfer rollers for transferring an unfixed image, fixing rollers with a changeable conveying speed, discharging rollers with a changeable conveying speed thereof and for discharging the recording material on which the image has been fixed by the pair of fixing rollers, a loop detecting sensor for detecting the loop of the recording material between the transfer rollers and the fixing rollers, and a control for changing the conveying speed of the fixing rollers on the basis of the detection of the loop detecting sensor so that the loop of the recording material is maintained with a predetermined range, wherein the control board controls the conveying speed of the discharging rollers so as to become equal to the conveying speed of the fixing rollers after the recording material has passed the transfer rollers.
摘要:
An image forming apparatus includes an image forming unit, an apparatus body, a door, a sheet conveyance unit, and a positioning device. The image forming unit forms an image on a sheet. The image forming unit is disposed in the apparatus body. The door is provided in the apparatus body so as to be openable and closable. The sheet conveyance unit conveys the sheet to the image forming unit. The sheet conveyance unit is provided in the door. The positioning device positions the door in relation to the apparatus body in the vertical direction and the horizontal direction. The positioning device performs positioning of the door in the vicinity of the image forming unit.
摘要:
An image heating apparatus includes a heating rotatable member for heating a toner image on a recording material at a nip; an axial flow fan for cooling the heating rotatable member at a longitudinal end portion thereof; wherein an axis of the axial flow fan extends from its outlet disposed adjacent the longitudinal end portion inclinedly toward a longitudinally central portion of the heating rotatable member.
摘要:
An image forming apparatus includes an image forming unit, an apparatus body, a door, a sheet conveyance unit, and a positioning device. The image forming unit forms an image on a sheet. The image forming unit is disposed in the apparatus body. The door is provided in the apparatus body so as to be openable and closable. The sheet conveyance unit conveys the sheet to the image forming unit. The sheet conveyance unit is provided in the door. The positioning device positions the door in relation to the apparatus body in the vertical direction and the horizontal direction. The positioning device performs positioning of the door in the vicinity of the image forming unit.