![]() ![]() The shelf and channel act to receive this rib so that the cartridge may be held securely. Many commercially available cartridges are configured with a rib at their midsection. One jaw has an overhang portion which, with the shelf, forms a channel. A shelf is formed on all of the jaws of the holder. This enables the user to retract the driving member once the top of the cartridge has been removed. A spring pushes back on the driver the further it is driven. The short prong assists in guiding the driver. This causes the long prong to bear against the top of the cartridge to remove it. A screw within a bulkhead is used to push the driver from the back. The driver is J-shaped and has long and short prongs connected by a cross member. A driving mechanism is used to pop off the top of the cartridge in order that it may be refilled. The device holds the cartridge within two jaws, which secure only the bottom of the cartridge. So if you want to impress an engineer, how do you do it? Microgravity is a pretty good start.Disclosed is a device and method for removing the lid of an inkjet cartridge. I float this idea by Annette Friskopp, HP’s head of specialty printing systems, and she tells me one of her printer engineers has, in fact, built his own observatory, for space object-observing purposes. Plus, printers here on Earth rely on gravity for loading paper.) Getting around the problem of gravity is an engineer’s shot at sci-fi glory. ![]() (Most printers spit out extra ink, which, in gravity, stays in the printer in zero-g, it just floats away. ![]() And if you’ve lived on Earth all your life, it can be hard to imagine what it is to operate without gravity a lot of things, including printers, rely on gravity to work. The reason is both simple and hard to design around: there’s no gravity. Space is one of the hardest problems - if not the hardest problem - any engineer is likely to encounter. In a lot of cases, enthusiasm for space is what got them involved in engineering in the first place. The thing about engineers is that most of them are obsessed with space. ![]()
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