摘要:
An ink-jet recording apparatus ejects droplets of a recording-improvement liquid on a boundary line between two different color portions of an image by using an ink-jet recording head. The ink-jet recording head comprises a group of nozzles for ejecting the recording-improvement liquid which is responsible for precipitating or condensing a coloring substance in the ink. Accordingly, a high-quality image that comprises black-color portion with a high image density without causing any feathering and multiple-color portions without a spread of ink can be obtained.
摘要:
An ink jet printing method for performing printing onto a printing medium with the use of both of a colored ink ejected from an ink jet head and a printing property improving liquid to be applied to the printing medium for improving a printing property for an ink jet printing apparatus, having the steps of: at least one time or more printing a first colored ink on the printing medium, at least one time or more applying the printing property improving liquid onto a region printed with the colored ink, and at least one time or more printing a second colored ink on a region where the printing property improving liquid is applied.
摘要:
A charging device for contact-charging a member to be charged. A charging device for charging a movable member to be charged includes a contacting member adapted to contacting the member to be charged, and means for forming a vibratory electric field between the member to be charged and the contacting member, the vibratory electric field forming means applying between the members a vibratory voltage having a peak-to-peak value not less than twice an absolute value of a charge starting voltage to the member to be charged. The member to be charged can be uniformly charged.
摘要:
A charging device for contact-charging a member to be charged. A charging device for charging a movable member to be charged includes a contacting member adapted to contacting the member to be charged, and means for forming a vibratory electric field between the member to be charged and the contacting member, the vibratory electric field forming means applying between the members a vibratory voltage having a peak-to-peak value not less than twice an absolute value of charge starting voltage to the member to be charged. The member to be charged can be uniformly charged.
摘要:
The present invention relates to a cartridge having a liquid discharger removably mounted onto a main body of a liquid jet recording apparatus. The cartridge comprises a humidifier for humidifying a liquid discharging portion of the liquid discharger, an input member for receiving delivery of an actuating force for actuating the humidifier, an electric contact member for receiving an electric signal actuating the liquid discharger, and a box member for containing the humidifier, input member and electric member.
摘要:
An image forming apparatus includes a charger for charging an image bearing member. The charger includes a charging member contacted to the image bearing member and supplied with a voltage. The charger functions both as discharging device and charging device by switching a voltage applied thereto. The apparatus is made smaller, simpler and less expensive in cost.
摘要:
An image forming apparatus includes a charger for charging an image bearing member. The charger includes a charging member contacted to the image bearing member and supplied with a voltage. The charger functions both as discharging device and charging device by switching a voltage applied thereto. The apparatus is made smaller, simpler and less expensive in cost.
摘要:
An ink jet printing apparatus has a station for dyeing a thread for embroidering by discharging ink onto the thread from an ink jet head. According to one aspect of the invention, a printing controller controls the amount of ink discharged per unit time onto the thread according to the speed of relative movement of the thread and the ink jet head. Another aspect of the invention accounts for the length of non-usable thread per unit time between an ink jet printing unit and the tip of an embroidery needle in an embroidery machine.
摘要:
A plurality of recording heads capable of ejecting inks of different colors is reciprocated relative to a recording material to print ink dots on the recording material while effecting main scanning in the forward and the backward pass thereof. A plurality of thinning patterns produced by preparing m.times.n unit picture element groups and arraying these unit groups in such a manner that the groups avoid mutually adjoining and assume a mutually complementary relation is used to effect a plurality of rounds of main scanning in the forward and the backward pass over an area which can be printed by one round of main scanning, record a thinned image, and complete the recording of an image. The array of picture element groups in the thinning patterns is determined so that the groups may mutually adjoin relative to the direction of main scanning.
摘要:
An image forming apparatus contains a heater and a sheet movable with a recording material in sliding contact with the heater, wherein the image is heated by heat from the heater through the sheet. The heater has an electrically insulative member, a heat generating resistor arranged on the electrically insulative member in a direction crossing with a movement direction of the sheet, an electrode for supplying electric power to the resistor and a protection layer covering the heat generating resistors, and in sliding contact with the sheet.