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Recording device and control method

A technology for recording devices and control methods, applied in printing devices, printing, etc., can solve problems such as not considering ink drop position deviation, unable to detect ink drop position, etc., and achieve the effect of good precision

Inactive Publication Date: 2015-04-22
RICOH KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the invention of Patent Document 1 does not consider the ink droplet position deviation in the sub-scanning direction.
Moreover, the invention cannot detect the ink droplet position in the sub-scanning direction

Method used

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  • Recording device and control method
  • Recording device and control method
  • Recording device and control method

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Experimental program
Comparison scheme
Effect test

no. 1 approach 》

[0040]

[0041] First, refer to figure 1 The overall structure of the recording device of this embodiment will be described. figure 1 It is a schematic diagram of the overall configuration of the recording device according to this embodiment.

[0042] In the recording device of the present embodiment, the guide rod 1 and the sub-guide 2 are bridged between the left side plate 3 and the right side plate, and the carriage 5 is held on the guide rail by a bearing not shown and a sub-guide receiving portion 11 . on the rod 1 and the sub-guide 2 so that the carriage 5 can slide in the main scanning direction. On the carriage 5 are mounted recording heads 21 and 22 for ejecting black (K) ink droplets and recording heads 23 , 24 and 25 for ejecting yellow (Y), red (M) and cyan (C) ink droplets.

[0043]The main scanning mechanism for making the carriage 5 move and scan in the main scanning direction includes a main scanning motor 8 located at one end of the main scanning directio...

no. 2 approach

[0109] In the recording device of the first embodiment, the paired light-emitting element array 300X and light-receiving element array 301X in the X-axis direction and the light-emitting element array 300H and light-receiving element array 301Y in the Y-axis direction are aligned in the vertical direction (z-axis direction). Arranged at random intervals, for this reason, the light-emitting element arrays 300 on both sides are in the light-emitting state, such as Figure 14 As shown, the recording heads 21-25 eject the ink drop 303 (S2), and the position information of the ink drop 303 on the X axis and the Y axis (S3 and S4).

[0110] In contrast, in the second embodiment, the paired light-emitting element array 300X and light-receiving element array 301X in the X-axis direction and the light-emitting element array 300H and light-receiving element array 301Y in the Y-axis direction are aligned in the vertical direction (z-axis direction). set at the same location. At this tim...

no. 3 approach

[0116] In the above embodiments, the position signal of the ink drop 303 on the X axis corresponding to the output signal obtained by the light receiving element array 301X located in the main scanning direction and the ink drop 303 corresponding to the output signal obtained by the light receiving element array 301Y in the sub scanning direction The position signal on the Y axis is used to compensate the positional deviation of the ink droplets 303 actually ejected by the recording heads 21-25.

[0117] On the other hand, in the third embodiment, after the recording heads 21 to 25 start ejecting the ink droplet 303, until the output of the light receiving element array 301X in the main scanning direction and the light receiving element array 301Y in the sub scanning direction are respectively received. At least one time information in the time information until the output information, and based on the obtained time information, compensate the positional deviation of the ink dr...

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Abstract

The invention relates to a recording device and a control method of the same. The recording device allows the position of an ink droplet ejected by a recording head to be detected with a fine precision. According to the recording device, an ink droplet (303) is ejected by recording heads (21)~(25), the position information along an auxilary scanning direction and the position information along a main scanning direction of the ink droplet (303) are detected, the position information along the auxilary scanning direction corresponds to a first output signal obtained by a first light receiving element array (301Y) when the ink droplet (303) passes through a part of an optical axis (304Y) in a first luminous element array (300Y), and the position information along the main scanning direction corresponds to a second output signal obtained by a second light receiving element array (301X) when the ink droplet (303) passes through a part of an optical axis (304X) in a second luminous element array (300X).

Description

technical field [0001] The present invention relates to recording devices such as ink jet printers. Background technique [0002] In an inkjet recording device, when a carriage on which a recording head is mounted moves back and forth in a main scanning direction, ink droplets are ejected from the recording head to record an image (dot) on a recording medium. When forming an image, the recording medium is conveyed in the sub-scanning direction by transport rollers or the like, and at the same time, recording in the main-scanning direction is repeated to form an image on the recording medium. [0003] If the recording head is not correctly mounted on the carriage, when a recording head installation error occurs, ink droplets ejected from the recording head will deviate from the normal position. [0004] In view of the above-mentioned problems, Patent Document 1 (JP Patent No. 4186548) discloses a recording device including a speed detection device and a drive control device....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41J2/01B41J29/393
Inventor 铃木新
Owner RICOH KK