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Recording apparatus and recording method

A technology of recording equipment and recording head, applied in printing and other directions, can solve problems such as disordered discharge direction, impossibility of ink discharge, bad ink discharge, etc., and achieve the effect of suppressing absorption and suppressing bad discharge

Active Publication Date: 2011-08-17
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Insufficient humidification will result in poor ink discharge, such as ink discharge becomes impossible or discharge direction is disordered

Method used

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  • Recording apparatus and recording method
  • Recording apparatus and recording method
  • Recording apparatus and recording method

Examples

Experimental program
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Effect test

example 1

[0049] Assume that the recording head 1 is a six-color recording head 1 of black, cyan, photo-cyan, magenta, photo-magenta, and yellow, which has a recording width of 15.24 cm (6 inches). A glossy roll paper for inkjet recording with a width of 12.70 cm (5 inches) was set as Sheet 2, and continuous image recording with an image size of 12.70 cm×17.78 cm (5×7 inches) was performed. At this time, the ambient temperature around the inkjet recording apparatus was 25 degrees Celsius, and the relative humidity was 55%. When the moisture content of the roll paper as sheet 2 was measured using an electronic hygrometer (main body: MR-200, probe: KG-PA) manufactured by Sanko Electronic Laboratory Co., Ltd. When measured, the moisture content was about 6%. After renewing the ink in the nozzles by performing "waste discharge" of the recording head 1 inside the caps before recording an image, the caps are emptied and the recording heads 1 are moved to the image recording position.

[005...

example 2

[0055]In Example 2, recording was performed on the sheet 2 in the same manner as in Example 1, except that the gas at a temperature of 40 degrees Celsius and a relative humidity of 60% (30.6 g / m3 in absolute humidity) was used as the gas supplied by the first supply unit. 4 humidified said gas. In addition, the amount of moisture supplied to the roll paper at this time was about 0.24 g / sec. When the moisture content of the roll paper humidified by the first supply unit 4 was measured, the moisture content was about 15%.

[0056] Furthermore, in a state where the humidified gas from the first supply unit 4 and the second supply unit 3 is supplied, the temperature and relative humidity near the tip of the recording head 1 are measured. As a result, in the recording head 1 on the most upstream side, the temperature was 30 degrees Celsius and the relative humidity was 95%, and in the recording head 1 on the most downstream side, the temperature was 30 degrees Celsius and the rela...

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Abstract

The present invention discloses a recording apparatus and a recording method. First humidified gas is supplied from a first supply port to a sheet to be conveyed, thereby increasing the moisture content of the sheet. Simultaneously, second humidified gas is supplied to a space where nozzles of the inkjet recording head are exposed, from a second supply port provided at a position closer to the inkjet recording head than the first supply port, thereby increasing the atmosphere humidity of the space. The part of the sheet of which the moisture content has been increased is made to enter the space where the atmosphere humidity has been increased, and recording is performed by the inkjet recording head.

Description

technical field [0001] The present invention relates to an inkjet recording apparatus and recording method capable of suppressing drying of an inkjet recording head. Background technique [0002] The following technology is disclosed in Japanese Patent Application Laid-Open No. 2000-255053: In a printer in which a plurality of inkjet recording heads are lined up side by side in the sheet conveying direction, the inkjet recording heads are supplied and flowed from upstream near the nozzles of the recording heads. The gas is humidified, thereby wetting the recording head to suppress drying of the ink. [0003] A sheet made of a material such as paper has an equilibrium moisture content (a state where the moisture of the sheet does not change further) depending on humidity, if the humidity is high then the moisture in the gas is absorbed, if the humidity is low then the moisture in the sheet Moisture loss. When the sheet is supplied near the recording head in a state where th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41J2/165
Inventor 宫越俊守鹿目祐治广泽进室健太郎狩野丰渡边光堀场崇嗣
Owner CANON KK
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