Abstract: A maintenance device used for cleaning a print head of an ink cartridge includes a housing including a stopper, and a wiper holder installed inside the housing in a rotatable manner. The wiper holder includes a gear. The maintenance device further includes a wiper fixed on the wiper holder, and a sled installed on the housing in a slidable manner. The sled includes a rack geared with the gear of the wiper holder for driving the wiper holder to rotate when a carrier of the ink cartridge pushes the sled. The maintenance device further includes a lock lever pivoted to the sled for wedging the stopper so as to fix the sled, and a first elastic component connected to the housing and the sled for pulling the sled when the lock lever departs from the stopper.

Abstract: A maintenance device for an inkjet cartridge that cleans a print head of the cartridge. The maintenance device has a sled and a cam, which allow an end of a wiper holder to move up and down. As a cartridge pushes the sled, a sliding pin extended from the wiper holder moves in an L-shaped slit of the sled, allowing the end of the wiper holder to move upward. After the cleaning of the print head, the cartridge pushes the cam downward to move the end of the wiper holder downward.

Abstract: An offset slider crank mechanism is connected a main body and an open/closed body. The open/closed body is pivoted to the main body in a foldable manner. A slot is disposed on the main body. A width between a first end of the slot and a second end of the slot is increasing. The offset slider crank mechanism includes a crank. A first end of the crank is connected to the open/closed body in a rotatable manner. The offset slider crank mechanism further includes a slider connected to a second end of the crank and set inside the slot in a slidable manner. When the slider engages at the first end of the slot, the slider deforms at a first deformation. When the slider engages at the second end of the slot, the slider deforms at a second deformation. The first deformation is greater than the second deformation.

Abstract: A support arm is connected a main body and an open/closed body. An opening is disposed on the main body. The open/closed body is pivoted to the main body in a foldable manner. The support arm includes a connecting part connected to the open/closed body, and a wedge part connected to the connecting part. A notch is formed inside the wedge part, and a first side of the wedge part is a camber. When the wedge part wedges in the opening with different sections on the camber, the wedge part deforms at different deformations so as to hold the open/closed body in different positions relatively to the main body.

Abstract: An ink storage module includes a base, a clamping structure, a pipeline, and a blotting structure. The clamping structure is connected to the base to create a monolithic structure. The clamping structure has at least one ink outlet. An end of the pipeline is connected to a pump for receiving remnant ink pumped by the pump, and another end of the pipeline is connected to the clamping structure in a detachable manner for conveying the remnant ink into the clamping structure. The blotting structure is installed on the base and is disposed at a side of the ink outlet for absorbing the remnant ink.

Abstract: In an auto sheet feeder, a flexible element is disposed monolithically at one end of a pick shaft, the flexible element capable of moving close to or away from the center of a ratchet. A fluctuation section of the flexible element comprises a pawl for engaging with an inner tooth of the ratchet, allowing the ratchet for one-way rotating the pick shaft. A clutch pushes a pin of the flexible element and disengages the flexible element with the ratchet.

Abstract: A maintenance device used for cleaning a print head of an ink cartridge includes a housing including a stopper, and a wiper holder installed inside the housing in a rotatable manner. The wiper holder includes a gear. The maintenance device further includes a wiper fixed on the wiper holder, and a sled installed on the housing in a slidable manner. The sled includes a rack geared with the gear of the wiper holder for driving the wiper holder to rotate when a carrier of the ink cartridge pushes the sled. The maintenance device further includes a lock lever pivoted to the sled for wedging the stopper so as to fix the sled, and a first elastic component connected to the housing and the sled for pulling the sled when the lock lever departs from the stopper.

Abstract: A maintenance device for an inkjet cartridge that cleans a print head of the cartridge. The maintenance device has a sled and a cam, which allow an end of a wiper holder to move up and down. As a cartridge pushes the sled, a sliding pin extended from the wiper holder moves in an L-shaped slit of the sled, allowing the end of the wiper holder to move upward. After the cleaning of the print head, the cartridge pushes the cam downward to move the end of the wiper holder downward.

Abstract: A print system includes a horizontal print platform for supporting a print medium, and a discharge roller installed on a first side of the print platform in a rotatable manner for discharging the print medium from a print area. The top of the discharge roller is higher than the platform. The print system further includes a discharge pressure roller for providing a force to the print medium. The center of the discharge pressure roller is horizontally positioned between the center of the discharge roller and the print area and is higher than the center of the discharge roller. The bottom of the discharge pressure roller is lower than the top of the discharge roller and is higher than the platform.

Abstract: A paper-feeding mechanism includes a paper tray to receive a stack of papers therein, and a paper-separating plate disposed below and extending frontwardly from the paper tray. A feed-in roller is disposed in front of the paper tray in such a manner that rotation of the feed-in roller results in feeding operation of a sheet of paper from the paper tray via the paper-separating plate. An urging member urges constantly the feed-in roller to push the papers toward the paper tray.

Abstract: A feeding mechanism. The feeding mechanism includes a shaft, an arm and a resilient element. The arm rotates on the shaft and has a second contact surface. The resilient element has a first contact surface contacting the second contact surface at a first contact point and exerts a first torque on the shaft when the arm is in a first position, and the first contact surface contacts the second contact surface at a second contact point, exerting a second torque on the shaft when the arm is in a second position, the first torque being substantially equal to the second torque.

Abstract: A sheet separator. The sheet separator includes a main body, a frictional member, and an elastic member. The main body is rotatable with a slot being longitudinally parallel to the moving direction of the medium. The frictional member is disposed in the slot and contacts the medium. When feeding, the medium exerts a first force on the main body through the frictional member. Moreover, the elastic member connects to the main body and exerts a second force thereon. According to the first force and the second force, the angle between the main body and the medium is adjusted.

Abstract: A print media feeding system for feeding a plurality of print media sheets. The print media feeding system includes a tray, a separator, a restricting device and a pickup roller. The tray has a first end and a second end opposite to the first end. The print media sheets are placed on the tray. The separator is disposed on the first end of the tray. The restricting device is disposed on the second end of the tray. The print media sheets are placed between the separator and restricting device. The pickup roller is disposed on the tray and rotates in a first direction and a second direction. The print media sheets placed on the tray push against the pickup roller.

Abstract: A sheet feeding apparatus, comprising a pad base, a groove along the central line of the pad base, and a spring embedded in the groove, is disclosed. The top of the spring protrudes above the top surface of base and a series of inclined protrusions are formed at two sides of the groove. The sheets are driven by rollers and rise gradually along the protrusions such that the sheets are separated one-by-one. Moreover, a radial arrangement of the ribs and the sheet-separating pad allows the lower edge of each sheet to move smoothly so that paper jams can be prevented.

Abstract: A printer comprises a feeding device and a printing device. The feeding device has a substrate, a linkage mechanism, a deskewer, a recovery device and a scrubber. The linkage mechanism is disposed on the substrate and has a pallet used to support the media and moving between an initial site and a predetermined site in parallel. The deskewer is used for deskewing the media located on the pallet, the recovery device is disposed on the linkage mechanism, and the scrubber for feeding the media located on the pallet toward the printing device. Once the media is placed between the pallet and the scrubber or gradually delivered to the printing device by the scrubber, the pallet of the linkage mechanism is downwardly or upwardly shifted in parallel by the compressed recovery device.

Abstract: A sheet separator. The sheet separator includes a main body, a frictional member, and an elastic member. The main body is rotatable with a slot being longitudinally parallel to the moving direction of the medium. The frictional member is disposed in the slot and contacts the medium. When feeding, the medium exerts a first force on the main body through the frictional member. Moreover, the elastic member connects to the main body and exerts a second force thereon. According to the first force and the second force, the angle between the main body and the medium is adjusted.

Abstract: A pallet for supporting media such as papers is disposed on a parallel motion mechanism. As the media is loaded, the pallet is shifted from an initial site toward a predetermined site in parallel, and therefore the media supported by the pallet is sequentially scrubbed and transmitted to a printing device by a scrubbing device.

Abstract: A recording medium conveying device for an ink jet printing device comprises an active roller, a starwheel and an elastic cantilever beam, so that when the starwheel presses against the active roller, the recording medium is conveyed due to the rolling of the active roller, and is not substantially damaged.

Abstract: A paper feeder includes a base plate, a movable paper holder for holding papers with a pivot fixed to the base plate and a rotating end positioned above the base plate in a rotatable way, a chute positioned on the bottom or the upper side of the movable holder, and an elastic device or a swing arm with one end positioned within the chute in a slidable way.

Abstract: A sheet feeding apparatus, comprising a pad base, a grove along the central line of the pad base, and a spring embedded in the grove, is disclosed. The top of the spring protrudes above the top surface of base and a series of inclined protrusions are formed at two sides of the grove. The sheets are driven by rollers and rise gradually along the protrusions such that the sheets are separated one by one. Moreover, a radical arrangement of the ribs and the sheet-separating pad allows the lower edge of each sheet to move smoothly so that paper jams can be prevented.