摘要:
A process for manufacturing a fuel tank including a baffle, and an attachment part and an offset part, both made of an incompressible material and being of fixed size and shape, the process including: manufacturing a fuel tank including a wall; making an opening in this wall; through this opening, introducing the baffle into the tank; attaching the baffle to the wall of the tank via its attachment part. The offset and attachment parts together describe a fixed angle, the baffle has a fixed shape and when it is being introduced into the tank, the baffle is rotated to be able to pass through the opening.
摘要:
An ink circulation system includes a supply subtank for supplying ink to an ink jet print head and a return subtank returning the ink not ejected by the ink jet print head. A print circulation path links the supply subtank with the ink jet print head and the return subtank for providing a print flow of ink from the supply subtank to the ink jet print head, the return subtank, and back to the supply subtank. A degas circulation path links the supply subtank with a through-flow degassing unit for providing a degas flow of ink from the supply subtank to the through-flow degassing unit and back to the supply subtank. The ink circulation system improves the degassing quality of the ink supplied to the ink jet print head of a printing apparatus is provided.
摘要:
An ink system for use in an inkjet printing apparatus includes an inkjet printhead, a supply subtank for containing a supply of an ink to the inkjet printhead, and a return subtank for containing a surplus of the ink not used by the inkjet printhead. A first fluid path couples the supply subtank with the inkjet printhead and with the return subtank, and provides a flow of ink from the supply subtank to the inkjet printhead and to the return subtank. A second fluid path couples the return subtank with the supply subtank and feeds the ink from the return subtank back to the supply subtank. The ink system is characterised by having the supply subtank, the return subtank and the first fluid path supported on a carriage for reciprocating together with the inkjet printhead across the printing medium.
摘要:
In a video frame grabber for digitizing analog video signals which have a pure analog video signal component and a synchronization signal component, the synchronization signals are digitized along with the pure analog video signals. Video gain and offset, sync gain, and sync threshold can be adjusted electronically. A variable time delay can be imposed on the sampling clock signals and on horizontal reference signals. Optimal values can be determined for the various parameters.
摘要:
The invention relates to a process for the manufacture of an article comprising a surface treatment step of at least part of the article in the substantial absence of oxygen; the surface of the article which is to be treated consists of a material which comprises at least one polyolefin and which contains less than 5 mg of oxygen per kg (no account being taken of the optional additives).
摘要:
A shuttle air supply system which regulates the air pressure in an ink tank of an inkjet printer includes a vacuum supply line coupled to a fixed vacuum source, a valve for controlling the opening of the vacuum supply line actuated by a valve control circuit obtaining measurements from a pressure sensor sensing the pressure in the ink tank and wherein the pressure in the ink tank is regulated by the valve control circuit to a desired ink tank pressure. A pressurized air supply line coupled to a fixed value pressurized air supply and an air pressure valve controlled by the valve control circuit can be added to enhance the pressure setting range.
摘要:
An ink circulation system includes a supply subtank for supplying ink to an ink jet print head and a return subtank returning the ink not ejected by the ink jet print head. A print circulation path links the supply subtank with the ink jet print head and the return subtank for providing a print flow of ink from the supply subtank to the ink jet print head, the return subtank, and back to the supply subtank. A degas circulation path links the supply subtank with a through-flow degassing unit for providing a degas flow of ink from the supply subtank to the through-flow degassing unit and back to the supply subtank. The ink circulation system improves the degassing quality of the ink supplied to the ink jet print head of a printing apparatus is provided.
摘要:
A wiper assembly is used to mount large size wiper blades for use in industrial inkjet printers. In order to provide an even wiping action over the length of a print head the wiper is sideways clamped in a rigid wiper blade holder and held in place by a clamping block. Preferably the wiper assembly clamps the wiper over about 20% of the wiper height. The assembly allows for use of individual wiper blades having different characteristics. Separate wiper blades are more easily fabricated and can be replaced easily. The wiper blades may be provided with a heel which enhances mounting efficiency. The wiper assembly may include provisions for easy mounting to allow for rapid exchange of the whole wiper assembly in a printer.
摘要:
Wipers of a wiper assembly in an inkjet printer are coated with an anti-wetting coating on at least one side so that, due to the anti-wetting properties, less ink adheres to the side of the wiper, the wiper needs less cleaning, and the wiper is less worn by scraping. Preferably the anti-wetting coating contains a fluoropolymer or the coating is silicone based. In order to provide wiping efficiency, the tip of the wiper can be left uncoated.
摘要:
A wiper assembly is used to mount large size wiper blades for use in industrial inkjet printers. In order to provide an even wiping action over the length of the printhead the wiper is sideways clamped in a rigid wiper blade holder. Preferably the wiper blade holder clamps the wiper over 20% of the wiper height. The assembly allows for use of individual wipers having different characteristics. Separate wipers are more easily fabricated and can be replaced easily. The wipers may be provided with a heel which enhances mounting efficiency. The wiper assembly may have easy mounting means allowing for rapid exchange of the whole assembly in a printer.