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Image forming method and image forming apparatus

A recording device, conveying direction technology, applied in the printing device, printing and other directions, can solve the problem of unable to use the surface of the sheet, and achieve the effect of effective use

Inactive Publication Date: 2009-07-08
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since these areas are non-printing areas, the entire surface of the sheet cannot be utilized

Method used

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  • Image forming method and image forming apparatus
  • Image forming method and image forming apparatus
  • Image forming method and image forming apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] Now, an image forming method and an image forming apparatus according to an embodiment of the present invention will be described in detail herein with reference to the accompanying drawings.

[0029] figure 1 The main parts of a thermal printer 1 as an example of an image forming apparatus are illustrated. Image information is transmitted from an upper system including a digital device such as a personal computer or a digital camera or a host computer to a control section (not shown) of the thermal printer 1 through, for example, a connecting cable. Upon receiving the image information, the control section starts a recording operation to form an image on the sheet 3 as recording paper.

[0030]Sheets 3 accommodated in paper feed tray (feeding section) 2 are pressed against feed rollers 6 by upper / lower plates 5 that swing up and down about upper / lower plate shafts 4 . The rotation of the feed roller 6 picks up the sheet 3 . The sheet 3 is then fed into the device bo...

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PUM

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Abstract

An image forming apparatus includes upstream and downstream transport rollers for transporting a sheet of recording paper. The upstream conveying roller is provided on the upstream side of the recording head, and the downstream conveying roller is provided on the downstream side of the recording head. When an image is formed on the first half area of ​​the recording sheet, the upstream conveying roller rotates and is responsible for conveying the recording sheet. When an image is formed on the second half of the recording sheet, the downstream conveying rollers rotate and are responsible for conveying the sheet. This structure provides printing without margins at the leading and trailing ends of the sheet. By adjusting the size of the gap between the respective rollers of the upstream roller and the downstream roller, the conveying speed of the sheet is kept constant, so that a high-quality printed image with uniform image density can be obtained.

Description

technical field [0001] The present invention relates to an image forming method and an image forming apparatus for a printer apparatus and a facsimile apparatus including a recording head as a recording member. Background technique [0002] In general, an ink sublimation type printer that prints image information on a sheet of chemically-treated recording paper using a thermal transfer belt has a recording head and a platen roller. The platen roller presses the sheet against the recording head when an image is formed. Inside the recording head, a plurality of heating elements are arranged in rows, and rows are arranged in parallel. The heating element is selectively heated according to the image information, so that the ink on the ink ribbon is sublimated and the image information is transferred to the recording surface of the sheet. Thus, a printing operation is performed. [0003] In this configuration, the sheet conveyance mechanism includes a power feed roller and a c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41J29/38B41J2/32B41J13/00B41J11/00
Inventor 新井纪行
Owner CANON KK