Image forming apparatus with cleaning mode
US-9494903-B2 · Nov 15, 2016 · US
Image forming apparatus
US10031455B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10031455-B2 |
| Application number | US-201815882184-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 29, 2018 |
| Priority date | Oct 7, 2014 |
| Publication date | Jul 24, 2018 |
| Grant date | Jul 24, 2018 |
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- Title
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Abstract
Official abstract text for this publication.
An image forming apparatus includes an image forming portion forming a toner image on a sheet, a rotatable heating member and a rotatable pressing member for fixing, at a nip, the toner image formed on the sheet by the image forming portion, an executing portion for executing a cleaning mode for cleaning the rotatable heating member by introducing, into the nip, the sheet on which a predetermined toner image is formed by the image forming portion, a re-introducing mechanism for re-introducing the sheet, into the nip, which has passed through the nip and then has been turned upside down, and a shifting mechanism for shifting a sheet position so that when a single sheet is introduced twice into the nip in the cleaning mode by using the re-introducing mechanism, positional relationships of a first-time sheet and a second-time sheet relative to the rotatable heating member with respect to a widthwise direction of the rotatable heating member are made different from each other.
First claim
Opening claim text (preview).
The invention claimed is: 1. An image forming apparatus comprising: an image forming portion forming a toner image on a sheet; a rotatable heating member and a rotatable pressing member for fixing, at a nip, the toner image formed on the sheet by said image forming portion; an executing portion for executing a cleaning mode for cleaning said rotatable heating member by introducing, into the nip, the sheet on which a predetermined toner image is formed by said image forming portion; a re-introducing mechanism for re-introducing the sheet, into the nip, which has passed through the nip and then has been turned upside down; and a shifting mechanism for shifting a sheet position so that when a single sheet is introduced twice into the nip in the cleaning mode by using said re-introducing mechanism, positional relationships of a first-time sheet and a second-time sheet relative to said rotatable heating member with respect to a widthwise direction of said rotatable heating member are made different from each other. 2. An image forming apparatus according to claim 1 , wherein said image forming portion forms, as the predetermined toner image, the toner image in an entire image formable region of the sheet with respect to the widthwise direction.
Assignees
Inventors
Classifications
with means for handling the copy material in the fixing nip, e.g. introduction guides, stripping means · CPC title
- G03G15/2025Primary
with special means for lubricating and/or cleaning the fixing unit, e.g. applying offset preventing fluid · CPC title
Structural details of the fixing unit in general, e.g. cooling means, heat shielding means (G03G15/2053 takes precedence) · CPC title
- G03G15/2075Primary
Physics · mapped topic
Physics · mapped topic
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Frequently asked questions
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- What does patent US10031455B2 cover?
- An image forming apparatus includes an image forming portion forming a toner image on a sheet, a rotatable heating member and a rotatable pressing member for fixing, at a nip, the toner image formed on the sheet by the image forming portion, an executing portion for executing a cleaning mode for cleaning the rotatable heating member by introducing, into the nip, the sheet on which a predetermin…
- Who is the assignee on this patent?
- Canon Kk
- What technology area does this patent fall under?
- Primary CPC classification G03G15/2025. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Jul 24 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).