Ink jet recording apparatus
A technology of inkjet recording and equipment, applied in the direction of printing, etc., to prevent the effect of lowering
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Embodiment 1
[0118] Hereinafter, the present invention will be described more specifically with reference to waste ink storage units of preferred embodiments and comparative examples of the present invention. The following examples of the present invention are not intended to limit the scope of the present invention as long as they do not exceed the gist of the present invention. In addition, unless otherwise specified, the unit of the amount of each component used to describe the inks of the preferred examples and the comparative examples is "parts by mass".
[0119]
[0120] (Preparation of black ink or solution containing black pigment)
[0121] A solvent prepared by dissolving 5 g of concentrated hydrochloric acid in 5.5 g of water was cooled to 5°C. Then, 4.65 g of p-aminobenzoic acid was added to the solvent while keeping the temperature of the solvent at 5°C. Next, the container containing the solvent was placed in an ice-bath, and the temperature of the solution was kept not hi...
Embodiment 2
[0144] refer to Figure 11 , the waste ink absorbing unit of the present embodiment is constituted by simply stacking three parallelepiped waste ink absorbing portions and an evaporation suppressing member disposed above the upper waste ink absorbing portion, and between the evaporation suppressing member and the upper waste ink absorbing portion A space with a height of about 1 mm is provided. The evaporation suppression member has two walls. The size of the portion of the evaporation suppressing member covering the upper surface of the upper ink absorbing portion was 80% of the size of the upper surface of the upper ink absorbing portion for absorbing pigment-based black waste ink.
Embodiment 3
[0146] refer to figure 2 , the waste ink absorbing unit of the present embodiment is constituted by simply stacking three parallelepiped waste ink absorbing portions and an evaporation suppressing member disposed above the upper waste ink absorbing portion, and between the evaporation suppressing member and the upper waste ink absorbing portion A space with a height of about 1 mm is provided. The evaporation suppression member has four walls. The size of the portion of the evaporation suppressing member covering the upper surface of the upper ink absorbing portion was 80% of the size of the upper surface of the upper ink absorbing portion for absorbing pigment-based black waste ink.
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