Recording sheet curl correcting mechanism and recording sheet curl correcting method
a curl correction and recording sheet technology, applied in the field of curl correction and recording sheet curl correction, can solve the problems of increasing the cost of parts and manufacturing, increasing the device size and cost of parts, increasing the cost of rolling paper, etc., and achieve the effect of suppressing the quality deterioration of curl correction and efficient correction
Inactive Publication Date: 2008-10-16
SONY CORP
View PDF2 Cites 15 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Benefits of technology
The patent text describes a mechanism for correcting curl in a recording sheet, such as roll paper, in an image forming apparatus. The mechanism includes a curl correcting unit that can bend the recording sheet in the opposite direction of the curl, which helps to stabilize the sheet and prevent quality deterioration. The mechanism can be compact and cost-effective, and it can efficiently correct curl without the need for additional heating or mechanical damage to the sheet. The technical effect of this mechanism is to improve the quality and durability of the recording sheet while minimizing the impact on the printing process.
Problems solved by technology
If the mechanical curl correcting means is used for this demand, the movement of the curl correcting means has to be increased, resulting in the increase in device size and cost of parts and manufacturing.
If the curl is corrected by providing the heating means, the device is increased in size due to the additional heating means and the enhanced heating means, resulting in the increase in cost of parts and manufacturing.
Furthermore, the mechanical and thermal damage applied to the roll paper is increased, so that quality problems, such as durability, arise.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0041]An embodiment of the present invention will be described below with reference to the drawings. In the embodiment below, as an image forming apparatus according to the embodiment, a thermal printer 1 is exemplified. A recording sheet curl correcting mechanism according to the embodiment is to be mounted on the thermal printer 1.
[0042]FIG. 1 is a perspective view of the thermal printer 1 according to the embodiment.
[0043]As shown in FIG. 1, the thermal printer 1 includes a casing 2 and a door 3 attached on the front face of the casing 2. Below the door 3, an outlet 8 is formed, to which a discharge tray 9 is attached.
[0044]On the front side of the casing 2, a power switch 4 is provided. On the rear side of the casing 2, an interface 5 composed of a plurality of connectors for external connection is arranged. Image information and so forth can be obtained from a computer through the interface 5. The image information may also be read by connecting various recording media, such as...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
A recording sheet curl correcting mechanism corrects curl produced in a recording sheet and for use in an image forming apparatus in that heat of a heat source is transferred to the recording sheet when images are printed while the recording sheet being conveyed. The correcting mechanism includes a curl correcting unit capable of bending the recording sheet in a direction opposite to that of curl produced on the recording sheet, and the curl correcting unit is arranged downstream the heat source in a feeding direction of the recording sheet ranging from a feed side toward a discharge side as well as arranged at a position where after heat due to the heat source during printing remains in the recording sheet.
Description
CROSS REFERENCES TO RELATED APPLICATIONS[0001]The present invention contains subject matter related to Japanese Patent Application JP 2006-015580 filed in the Japanese Patent Office on Jan. 24, 2006, the entire contents of which are incorporated herein by reference.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to a recording sheet curl correcting mechanism for correcting the curl produced in a recording sheet, an image forming apparatus having such a recording sheet curl correcting mechanism, and a recording sheet curl correcting method, and in particular it relates to a recording sheet curl correcting mechanism, an image forming apparatus, and a recording sheet curl correcting method that are capable of efficiently correcting the curl and stabilizing the state of the recording sheet during discharging.[0004]2. Description of the Related Art[0005]An image forming apparatus, such as a thermal printer, has been known that includes an app...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(United States)
IPC IPC(8): B65H9/00
CPCB41J11/0005B65H23/34B65H2511/22B65H2515/83B65H2801/12B65H2220/02B65H2220/11B65H2220/01F24H1/44F24H9/02F24H9/1845F24H2230/00
Inventor DOCHI, KIYOTAKA
Owner SONY CORP