Image forming apparatus

An imaging device and image technology, which are applied to printing devices, printing, and kerning mechanisms, etc., can solve the problems of contamination of recording media and reduction of electrostatic attraction of recording media.

Inactive Publication Date: 2006-06-28
RICOH KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is a problem that the back side of the recording medium will be soiled or the electrostatic attractive force against the recording medium conveyed by the conveyor belt will be reduced

Method used

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Experimental program
Comparison scheme
Effect test

no. 1 example

[0103] figure 1 is a configuration diagram of an inkjet recording apparatus, which is an example of the image forming apparatus according to the first embodiment of the present invention. figure 2 yes figure 1 A plan view of a part of the inkjet recording apparatus shown in . image 3 yes figure 2 A perspective view of a part of the inkjet recording apparatus shown in .

[0104] shown in figure 1 The inkjet recording device in includes a guide rod 1 and a guide rail 2, which together slidably support a carriage 3, which is driven by a main scanning motor 4 via a timing belt 5 and can be moved as figure 2 Move in the direction of the arrow (main scanning direction) shown in . The guide rod 1 and the guide rail 2 are guide elements that bridge between left and right plates (not shown in the drawings) of the inkjet recording apparatus.

[0105] The carriage 3 is provided with a recording head 7 having four inkjet heads which eject ink droplets of yellow (Y), cyan (C), ma...

no. 2 example

[0150] A description will be given of an imaging device according to a second embodiment of the present invention. Figure 14 is a configuration diagram of an inkjet recording apparatus, which is an example of an image forming apparatus according to a second embodiment of the present invention. exist Figure 14 in, with figure 1 Components that are the same as those shown are given the same reference numerals, and descriptions thereof are omitted.

[0151] The inkjet recording apparatus according to the second embodiment of the present invention basically has the same figure 1 The same mechanical structure is shown as the ink jet recording apparatus of the first embodiment described above. This sensor is used as a state detecting means for detecting the surrounding environment of the recording head 7 and the surface state of the conveyor belt 21, which is mounted on the carriage 3, and the description of components other than the state sensor 41B is omitted.

[0152] Fig. ...

no. 3 example

[0177] An inkjet recording apparatus will be described, which is an example of an image forming apparatus according to a third embodiment of the present invention.

[0178] An inkjet recording apparatus according to a third embodiment of the present invention basically has the same figure 1 The inkjet recording apparatus shown has the same structure, and the description of its entire structure is omitted.

[0179] Except as shown in figure 1 In addition to the structure of the inkjet recording apparatus described in , the inkjet recording apparatus according to this embodiment has such Figure 21 A maintenance and restoration mechanism 94 is shown to maintain the state of the nozzles of the recording head 7 and to restore the state of the nozzles when the nozzles are degraded. Along the moving direction of the carriage 3, the maintenance and recovery mechanism 94 is located in the non-recording area outside the recording area, such as Figure 21 shown. The maintenance and ...

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Abstract

The present invention discloses an image forming apparatus capable of detecting the width and the leading edge of a recording medium with a simple structure, thereby preventing erroneous printing. The carriage has a recording head to form an image by scanning a recording medium. A detector is provided on the carriage so as to detect the leading edge of the recording medium.

Description

technical field [0001] The present invention relates generally to an image forming apparatus, and more particularly, to an image forming apparatus that forms an image using inkjet technology such as an inkjet recording apparatus. Background technique [0002] As an image forming apparatus (which may be called an image recording apparatus) such as a printer, a facsimile or a copying machine is a known inkjet recording apparatus. The inkjet recording apparatus performs a recording job (image formation) by ejecting ink droplets onto a recording medium from an inkjet recording head, and the ink droplets adhere to a recording medium such as recording paper or overhead projector (OHP) film. The inkjet recording apparatus has advantages in that fine image recording can be performed at high speed, the running cost is low, there is less noise, and color images can be easily recorded by using multi-color inks. [0003] In an inkjet recording device, generally, a recording head is a d...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): B41J2/01B41J19/18B41J29/38
Inventor中田哲美小林胜己小河路隆司习田知宏
OwnerRICOH KK