Back to results
US 8,944,582 B2Granted
Sheet processing apparatus and printing apparatus
AssigneeCanon Kabushiki Kaisha
InventorYoshinori Yamaguchi
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeCanon Kabushiki Kaisha
InventorYoshinori Yamaguchi
Estimating the term…
A sheet processing apparatus includes a heater, an irradiation unit, and a contact unit. The irradiation unit irradiates a sheet with heat rays from the heater to heat the sheet by radiant heat. The contact unit includes a member that heats a region of the sheet by coming into contact with the radiant heated sheet on a downstream side of the irradiation unit. A part of the heat rays output from the heater is radiated onto a part of a structure constituting the contact unit to raise a temperature of the member.
A sheet processing apparatus comprising:
A sheet processing method for a sheet processing apparatus, the sheet processing method comprising:
A printing apparatus comprising:
Dependencies are inferred from the claim text.
Drawings are temporarily unavailable. Open the PDF at USPTO
From the US filing history. Foreign family members aren’t listed.
Curing or drying the ink on the copy materials, e.g. by heating or irradiating: using irradiation
Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in…:…
Curing or drying the ink on the copy materials, e.g. by heating or irradiating: using conduction means, e.g. by using a heated platen
Duplicating or marking methods; Sheet materials for use therein: pre-treatment or treatment during printing of the recording material, e.g.…
About 5 years 8 months of term left · ends 6 Jul 2032 (estimated)
1. Field of the Invention
The present invention relates to a sheet processing apparatus suitably adapted to an inkjet printing apparatus and enabling to apply heat to a sheet with high efficiency.
2. Description of the Related Art
The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments, features, and aspects of the invention and, together with the description, serve to explain the principles of the invention.
FIG. 1 is a cross-sectional view illustrating an entire configuration of an inkjet printing apparatus.
FIGS. 2A, 2B, and 2C are cross-sectional views illustrating operation states of advancing/retreating of a heating roller.
Various exemplary embodiments, features, and aspects of the invention will be described in detail below with reference to the drawings.
The sheet processing apparatus is suitably adapted to the inkjet printing apparatus. However, this application is only one example and the present invention can be widely applied to apparatuses performing heat treatment or drying treatment to a sheet, in various production apparatuses using the sheet.
The sheet used in the apparatus according to the present exemplary embodiment is assumed to be a sheet not having a receptive layer, such as a vinyl chloride layer enabling to repel moisture (hereinafter referred to as no receptive layer sheet). Further, the general used sheet having the receptive layer can be also used. The used ink is assumed to be the ink containing a lot of emulsion components. The emulsion components have characteristics in which, by heating on the sheet, moisture in the ink is vaporized, and then the ink is soften and forms film. By the ink forming film on the sheet, weatherability, water resistance, and wear resistance of images can be improved.