摘要:
A common print head module that can accommodate either a single-color or multi-color inkjet print head comprises an ink cartridge having an ink output, and an inkjet chip arranged over the ink output. The ink cartridge internally includes ink channels that terminate through a surface of the ink output, wherein two adjacent ink channels are spaced apart by a channel wall. The channel wall has a top surface lower than the surface of the ink output where the ink channels terminate. The ink channels communicate with ink slots of the inkjet chip. When accommodating a single-color print head, the ink flows out through the ink channels over the channel wall. When accommodating a multi-color print head, the ink slots of the inkjet chip have slot walls that are sealed with the channel walls such that inks of different colors can be separately ejected through the ink slots.
摘要:
The present invention is an ink pressure adjustment device of inkjet pen; the device is utilized to adjust negative pressure in an ink cartridge mainly through an expandable and shrinkable gasbag installed in the ink cartridge, and a tension valve attached on the surface of the gasbag. The tension valve can open or close automatically an air hole that communicates atmosphere and the inner part of ink cartridge via the gasbag according to the expansion and shrinkage of the gasbag, causing a part of atmosphere to enter the ink cartridge so as to adjust the negative pressure of the ink cartridge and not only can prevent ink from leaking but also prevent the negative pressure from being too large to fail the inkjet printing.
摘要:
A method and a structure for measuring the temperature of heating elements of an ink-jet printhead are provided, wherein an extra metal layer or semiconductor layer is formed on the ink-jet chip having driving elements to precisely measure the temperature of each individual heating element. The structure includes: an ink-jet device including a heating element for heating liquid ink; a transistor driver for driving a transistor to control heating of the heating element; and a temperature-sensing layer located between the ink-jet device and the transistor driver and under the heating element, the temperature-sensing layer having two terminals, one connecting to the transistor and the other connecting to an electrode terminal connected to a printer, wherein the ink-jet device connects to the transistor driver through the temperature-sensing layer.
摘要:
A multi-color level inkjet head chip structure includes a pre-mixing space. The pre-mixing space communicates with different ink storage spaces through a plurality of providing elements, then the volume of different colored inks is controlled by the ink providing elements to be injected into the pre-mixing space. The desired color level ink is created in the pre-mixing space in advance. Finally, the desired color level pre-mixed ink is ejected onto the recording media (such as paper or other similar material) through an inkjet printing driver at the pre-mixing space. Therefore, the desired color level can be produced by only one inkjet printing at any printing area, which will be extremely beneficial for increasing the speed of inkjet printing.
摘要:
The ink cartridge of the present invention uses a directional fibrous collection enclosed within a bushing to temporally retain the ink therein, wherein at least one controlled capillary portion is provided. The controlled capillary portion can be formed by the bushing or by a predetermined shape located in the cartridge. The capillary forces of the controlled capillary portion are stronger than the one of other portion of the directional fibrous collection. The flow rate of the ink can be precisely controlled by the directional fibrous collection, and the controlled capillary portion can efficiently drain out the ink to the printhead and there is no bubble left therein.
摘要:
A back-shooting inkjet print head. The inkjet print head comprises: a first substrate having a plurality of thermal resistors formed on a back surface thereof, and a plurality of orifices formed through the first substrate and respectively located proximate to the resistors; an isolation layer having a plurality of ink channels formed therein, wherein the isolation layer is arranged onto the back surface of the first substrate such that the region of each ink channel covers that of one of the resistors and one of the orifices; and a second substrate having an ink supply window, wherein the second substrate is arranged on the isolation layer covering the ink channels, such that the ink supply window, connected to the ink channels, is located at one side of the resistors while the orifices of the first substrate are located at the other side of the resistors and face the second substrate.
摘要:
A method and apparatus for manufacturing biochips. The apparatus includes a conveying device and a series of dispensers positioned at a series of dispensing positions above the conveying device. At least one substrate is disposed on the conveying device, and the conveying device successively moves each substrate below the series of dispensers. Each of the dispensers has a plurality of nozzles facing the substrate. Each of the nozzles dispenses a predetermined reagent onto the substrate; a plurality of reagents is dispensed on the substrate at each dispensing position.
摘要:
An inkjet dispensing apparatus. The inkjet dispensing apparatus includes a cartridge, a chip, and a sensor controller. The cartridge includes a first s channel and a second channel. The first channel has a first kind of liquid therein, and the second channel has a second kind of liquid therein. The chip is disposed on the cartridge, and includes a first conductor and a second conductor. The first conductor is in contact with the first kind of liquid, and the second conductor is in contact with the second kind of liquid. The sensor controller is coupled to the first conductor and the second conductor to detect leakage between the first channel and the second channel.
摘要:
The ink cartridge is provided with a pressure controller to regulate the inner pressure therein by atmospheric pressure while the ink stored in the ink cartridge is gradually drained off. The ink is stored in a container with negative pressure therein, and at least one through hole formed on the container is used to connect to the atmosphere, and at least one recess is formed on the inner wall of the through hole. The pressure controller has a plug movably disposed on the through hole and the recesses. The recesses are used as a channel to allow the entrance of the atmospheric air, and the plug can be automatically moved so as to enlarge the clearance between the plug and the through hole while the ink stored in the ink cartridge is gradually drained off. The inputted air can effectively reduce the negative pressure in the container, and therefore the printing process of the ink cartridge can be proceeding steadily.
摘要:
A leakage detection apparatus and method for a multi-channel inkjet cartridge. The leakage detection apparatus includes a plurality of electrodes and a controller. Each of the electrodes is disposed in one of channels of the inkjet cartridge respectively, and contacts a reagent in the corresponding channel. The controller is coupled to the electrodes, and detects leakage between channels.