Abstract: An automatic locking apparatus for a movable module in a device uses device's weight and position to lock the movable module. It includes an input unit located on a bottom wall of the device to detect if the device is positioned on a support plane under a normal state, a transfer unit for receiving input from the input unit to generate a response, and an output unit for receiving the response to actuate a lock or unlock action on the movable module. When the input unit detects the device being properly positioned on the support plane, the transfer unit will be triggered to make the output unit disengaged with the movable module for normal operation. When the input unit detects the device being removed from the support plane at an abnormal state, the transfer unit will be triggered to make the output unit locking the movable module inside the device at a selected location.

Abstract: A projection lens has five optical groups, labeled OI to OV, having effective focal lengths fI to fV, respectively. The optical groups move on an optical axis to perform zooming and focussing functions. The projection lens has a total of at least thirteen lenses, which may be labeled L1 to L13, having focal lengths f1 to f13, respectively, Abbe numbers V1 to V13, respectively, and indices of refraction N1 to N13, respectively. Optical group OI has the first three lenses, L1 to L3. Optical group OII , has the next two lenses, L4 and L5. Optical group OIII has the next three lenses, L6 to L8. Optical group LIV has lens L9. Finally, optical group OV has the remaining lenses, L10 to L13, of which L10 to L12 combine to form a triplet. The lens groups satisfy the following conditions: −0.45<(f11/fV)<−0.25 V10+V12−2V11>44 2N11−N10−N12>0.5 0.5<(fN+fP)/(fP)<0.

Abstract: A method for driving an ink jet print head of a printing apparatus is disclosed. The ink jet print head includes a plurality of ink cells for containing ink, Each ink cell has a nozzle and a heating element. The method includes calculating an index of each nozzle which will jet ink in an array, corresponding indices of all nozzles which will jet ink in the array to heat-accumulation weightings according to a heat-accumulation weighting table, using the calculation module to calculate a total weight of the array using the heat-accumulation weightings of all the nozzles which will jet ink in the array, and using a driving module to provide energy to heating elements corresponding to the nozzles which will jet ink according to the total weight of the array.

Abstract: A sheet feeding device includes a feed roller consisting of a rigid roller and an elastic coating covering at least part of the feed roller. A sheet is placed between the pressing member and the feed roller and is pressed tightly by the pressing member. While the feed roller rotates, the sheet is fed by means of the friction between the sheet and the pressing member and between the sheet and the feed roller. The thickness of the elastic coating is preferably much less than the radius of the rigid roller, and is also preferably less than 0.5 millimeter.

Abstract: A linear coil for inhibiting acoustic noise is provided. A rubber spacer is disposed in addition to the conventional linear coil. By means of the spacer, the vibration, generated when the deflection current passes through the linear coil, is absorbed. As a result, acoustic noise, caused by the collision between the linear coil and the printed circuit board, can be inhibited.

Abstract: The feeding mechanism for feeding media from an initial site to a predetermined site comprises a base, a scrubber, a deskewer, two feeders, a lifting device having two cam portions, a driving element and a releasing device. The deskewer is moved between a first position and a second position and sets the media located at the initial site. The two feeders are used for transmitting the media located at the initial site toward the predetermined site. The cam portions are used as a lifter to move the deskewer from the first position to the second position. The driving element disposed between the lifting device and the releasing device generates forces to actuate the cam portions to move the deskewer. The releasing device is used as an overload protection clutch connected between the lifting device and the driving element, having a first plate separately contacting the driving element.

Abstract: An image processing system has a memory for storing programs, an unprocessed image and a processor for executing the programs in the memory. The image is a plurality of pixels arranged as a matrix, and each pixel has several color parameters. The image has at least one image region. One of the color parameters is adjusted according to an initial image adjusting value. Then, in one direction of up, down, left or right, the image adjusting value is successively changed by adding a fixed value, or multiplying by a fixed factor. Each successive pixel has its color parameter adjusted by adding the image adjusting value to it. Image adjustment proceeds in this way from the image region to an outer region along the predetermined direction.

Abstract: A printer has a print path disposed along a left-and-right direction, a driving system for moving a print head left or right along the print path, a control circuit for controlling the driving system, and a look-ahead system. The print head is used to perform a printing operation that forms at least one pixel on a media in a print swath. The look-ahead system determines a plurality of different paths that cover at least three print swaths, and computes a print time required by the driving system to cover each path. The look-ahead system then selects a path having the shortest print time, and the control system directs the driving system to follow this path.

Abstract: A printer has a print head for forming a pixel, and a driving system for moving the print head from a first location to a second location. The print head forms the pixel according to a firing signal. The movement of the print head is controlled by a control signal sent to the driving system. The method involves building a list of desired pixel locations, building a calibrated list of firing signal offsets, sending the control signal to trigger movement of the print head, and sending a firing signal to the print head to form a pixel at a predetermined location. The firing signal offsets correspond to the desired pixel locations, and are adjusted to compensate for the driving system. The timing of the firing signal is determined by the timing of the control signal and by a firing signal offset in the calibrated list of firing signal offsets. The firing signal offset adjusts the firing time so that the predetermined location of the pixel is effectively on a corresponding desired pixel location.

Abstract: An ink jet service station has a housing with a right wall and a left wall, and a carriage for holding a wiper. The carriage is moveably installed in the housing, and a scraper is rotatably mounted on the carriage. When the carriage moves to the left wall, the scraper contacts the left wall. A first torque is thus placed upon the scraper that causes the scraper to rotate to the right and scrape the wiper. When the carriage moves to the right wall, the scraper contacts the right wall and a second torque is placed upon the scraper that causes the scraper to rotate to the left and scrape the wiper.

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: An interview method through network questionnairing includes steps of: (a) a user inputting an interview request at a user end and then sending it out; (b) a server end receiving the interview request, generating thereby a first questionnaire, and then sending it out; (c) the user end receiving the first questionnaire and then answering the first questionnaire by articulating for recording an interview reply data while the user starting the first questionnaire; (d) the user sending out the interview reply data while the user completing the interview reply data; (e) the server end receiving the interview reply data as an articulation data recording replies of the user during answering the first questionnaire and then storing thereto the interview reply data; and (f) the server end utilizing an articulation recognizing procedure to transform the interview reply data into a written data to be stored therein for further reviewing.

Abstract: The present invention relates to an alignment device for electrically connecting a testing device to a socket of a sliding plate. The testing device is positioned beside a conveyer. The sliding plate is slidably placed on the conveyer and is temporarily halted in front of the testing device. The alignment device comprises a positioning device fixed on the socket of the sliding plate, a plug electrically connected to the testing device, a guiding device fixed on the plug, a driving device installed beside the testing device for pushing the plug and the guiding device toward the socket and the positioning device of the sliding device, and a mounting device installed on the driving device for slidably supporting the plug and the guiding device. The guiding device is used for interacting with the positioning device to adjust the position of the plug on the mounting device.

Abstract: An antenna has a conductive ground plate, a conductive first plate set above the ground plate, and a signal feed electrically connected to the ground plate and the first plate. A first distance separates the first plate from the ground plate. The first plate has two slots extending from two edges of the first plate. The two extending points of the two slots are located approximately opposite to each other, and the two slots extend around a central portion of the first plate.

Abstract: A pressure-compensation device for ink reservoirs includes an accumulator bag, a resilient element and an air-compensation means. The accumulator bag is installed inside the ink reservoir and provides a duct for air communicating with the atmosphere. While the ink inside the ink reservoir is running off, external air can be led automatically through the duct to inflate the accumulator bag. The resilient element has a lower end to engage with a bottom end of the accumulator bag for stabilizing a back pressure inside the ink reservoir by acting contraction against the inflating of the accumulator bag. While the accumulator bag is expanded to a saturated state, the air-compensation means can introduce automatically external air into the ink reservoir for maintaining the back pressure and thus for avoiding any ink leakage and stalling of the print head.

Abstract: A pressure-compensation device for adjusting the backpressure inside the cartridge of an ink jet printer includes an accumulator bag, a resilient element, and a motion element. The accumulator bag, installed inside the cartridge, communicates with the external atmosphere through an air duct. The resilient element, kept at a tension state, has a first end connected with the accumulator bag and a second end connected with the motion element. The resilient element restrains the inflation of the accumulator bag so as to induce a backpressure inside the cartridge. The accumulator bag, gradually inflating along with consumption of the ink inside the cartridge, can move the resilient element and the motion element downwards to keep the resilient element at a stable tension state, and thereby a stable backpressure inside the cartridge can be provided.

Abstract: A method for assembling the rubber domes into a housing of upper casing of a keyboard is provided. The upper casing is in substantially form of shell shape and defines a bottom surface and a top surface. The upper casing includes a multiple of housings distributed over a central portion of the bottom surface. Each housing receives one rubber dome. The method includes the steps of pouring a plurality of rubber domes over the bottom surface of the upper casing; shaking the upper casing such that one rubber dome is disposed into one corresponding housing while a number of leftover rubber domes are not received in any one of the housings; engaging a membrane circuit sheet with the central portion of the bottom surface; flipping the upper casing over such that the leftover rubber domes not covered by the membrane circuit sheet are cleaned up.

Abstract: A printing device has a motor that drives an ink jet print head back and forth along a print track. A service station is installed on one end of the print track, and has a first track, a second track, a slot track, and a wipe sled. The wipe sled slides inside a housing of the service station along the first track, in parallel with the print track. The slot track, which is part of the wipe sled, in diagonal to the print track. The second track, mounted on the housing, is perpendicular to print track. A wiper is mounted on both the slot track and the second track. The relative movement of the slot track with the second track as the wipe sled is pushed backwards forces the wiper into a working position.

Abstract: A uniform illumination device satisfies the demands of having a short optic path, a smaller beam size, and desired parallel beams. The uniform illumination device has a beam splitting device for converting light from a light source into a plurality of parallel beams, and a beam condenser for condensing the parallel beams to form a more uniform condensed light. The beam condenser has a first condensing lens made of a convex lens, and a second condensing lens made of a concave lens. When the parallel beams transmitted from the beam splitting device pass through the first condensing lens of the beam condenser, the parallel beams converge to the central axis. When the parallel beams pass through the second condensing lens, the parallel beams converge towards axes that are parallel with the central axis. The parallel beams transmitted from the beam splitting device are mixed to form the more uniform condensed light.

Abstract: A light pipe is designed for a projector system. The light pipe gathers the light from a light source and guides the gathered light to an image device in the projector system. The area of the exit pupil of the light pipe is smaller than the area of the entrance pupil, and the shape of the exit pupil is scaled from that of the entrance pupil. This improves the light gathering efficiency of the light pipe.