Abstract:
To provide a printing apparatus and a method for determining a service life of a cleaning mechanism, capable of more accurately determining a service life of a cleaning mechanism. For the purpose, a service life of a recovery unit is determined by multiplication of a number of times a blade wipes a face surface by a coefficient different depending on a quantity of liquid adhering to the face surface.
Abstract:
A developer conveying apparatus for conveying a developer that develops an electrostatic latent image includes a rotation unit which rotates around a rotation shaft extending in an axial direction and parallel to a developer conveying direction, a first developer conveying portion which is provided in the rotation unit and which has an opening configured to convey the developer in a first axial direction of the rotation shaft, and a second developer conveying portion which is provided in the rotation unit and which has an opening configured to convey the developer in a second axial direction opposite to the first axial direction. A distance from the rotation shaft to the opening in the first developer conveying portion is different than a distance from the rotation shaft to the opening in the second developer conveying portion.
Abstract:
Provided is a remaining toner conveying apparatus including a cleaning blade which recovers a toner remaining on a surface of a photosensitive drum and a conveying screw which conveys the remaining toner so that a conveyance amount per predetermined time in a first conveyance path conveying the remaining toner recovered by the cleaning blade to a discharge portion for discharging the remaining toner is equal to or less than a conveyance amount in a second conveyance path in a downstream side in a conveyance direction where the conveyance path is narrower than the first conveyance path.
Abstract:
A feeding apparatus configured to feed a sheet, the feeding apparatus including: a placement unit on which the sheet is placed, the placement unit being movable in an intersecting direction intersecting with a sheet feeding direction; a feeding unit configured to feed the sheet placed on the placement unit in the sheet feeding direction; and a first guide unit and a second guide unit configured to guide the placement unit in the intersecting direction, wherein the first guide unit is disposed below the feeding unit and the second guide unit and downstream of the second guide unit in the sheet feeding direction.
Abstract:
Provided is a sheet processing apparatus, including: a regulation portion configured to contact with an end edge of a sheet to be conveyed and to regulate a position of the sheet; a position adjustment portion configured to perform position adjustment on a sheet in a direction along an end edge of the sheet of which the end edge is in contact with the regulation portion; a folding portion configured to perform folding processing on a sheet which has been regulated by the regulation portion; and a control portion configured to execute: a first mode of causing the folding portion to perform the folding processing on a sheet which has been regulated by the regulation portion, without causing the position adjustment portion to perform the position adjustment on the sheet; and a second mode of causing the position adjustment portion to perform the position adjustment with respect to the regulated sheet.
Abstract:
A sheet feeding apparatus, including: a stacking unit; a feed unit having a contact portion to be brought into contact with a sheet stacked on the stacking unit and a noncontact portion kept out of contact with the sheet, the feed unit being configured to feed the sheet in a contact state in which the contact portion is in contact with the sheet, and then turn into a noncontact state in which the noncontact portion faces the sheet so as to be kept out of contact with the sheet; a conveyance unit arranged downstream of the feed unit; and a drive unit configured to drive the conveyance unit at a first speed in the contact state and to drive the conveyance unit at a second speed higher than the first speed in the noncontact state.
Abstract:
A transfer material is provided that can be more firmly attached to an image substrate without deteriorating printing characteristics concerning image bleeding, printing resolution, and the like. An ink receiving layer is of a gap-absorbing type. An adhesive layer includes discretely disposed adhesive pieces provided on a surface of the ink receiving layer so as to leave exposed portions on the surface of the ink receiving layer.
Abstract:
A sheet stacking apparatus, including: a conveyance unit configured to convey a sheet; a stacking unit on which a sheet conveyed by the conveyance unit is stacked, the stacking unit inclined downward in a conveyance direction in which the conveyance unit conveys a sheet and including a first region and a second region located downstream of the first region in the conveyance direction; a guide portion configured to guide a sheet conveyed by the conveyance unit over a sheet placed on the second region; and a pressing portion configured to press a sheet placed on the second region.
Abstract:
A liquid supply apparatus includes a supply passage for supplying a liquid stored in a liquid storage section to a liquid ejection head. The liquid supply apparatus further includes: a region set within a range including an inside of the liquid storage section and an inside of the supply passage, pressure applied to the liquid in the region varying according to an amount of the liquid remaining in the liquid storage section or in the supply passage; a gas chamber communicating with the region in such a manner that a pressure of gas in the gas chamber varies according to the pressure applied to the liquid in the region; and a pressure sensor detecting pressure in the gas chamber.
Abstract:
An ink jet printing apparatus includes a print head configured to be able to eject an ink fed from an ink tank that contains the ink in a closed space so as to apply a negative pressure to the ink, a communication path configured to allow a liquid chamber in the print head to communicate with an outside of the liquid chamber, an opening and closing unit configured to open and close the communication path, and a control unit configured to open the communication path in accordance with a pressure in the print head via the opening and closing unit, to bring the liquid chamber and the outside into communication with each other.