91results about How to "Correct skew" patented technology

On a paper path in a photo printer, a skew corrector is provided to correct skew of recording sheets simultaneously in two lines. The skew corrector consists of a first conveyer roller pair, a second conveyer roller pair and a strike guide. The recording sheets are conveyed by the first conveyer roller pair after their leading edges strike on the strike guide, to bend the recording sheets flexibly between the first conveyer roller pair and the strike guide, thereby to correct skew of each recording sheet. A necessary transport amount for correcting the skew of the recording sheet is calculated on each line based on detection signals from photo sensors, which are disposed between the first and second conveyer roller pairs, and a width of the recording sheet. The recording sheets of the respective lines are conveyed by the largest necessary transport amount among the calculated ones.

A topographic profile of a structure is generated using atomic force microscopy. The structure is scanned such that an area of interest of the structure is scanned at a higher resolution than portions of the structure outside of the area of interest. An profile of the structure is then generated based on the scan. To correct skew and tilt of the profile, a first feature of the profile is aligned with a first axis of a coordinate system. The profile is then manipulated to align a second feature of the profile with a second axis of the coordinate system.

Systems and methods for processing a semiconductor wafer includes a plasma processing chamber. The plasma processing chamber includes an exterior, an interior region with a wafer receiving mechanism and a viewport disposed on a sidewall of the plasma processing chamber providing visual access from the exterior to the wafer received on the wafer receiving mechanism. A camera is mounted to the viewport of the plasma processing chamber on the exterior and coupled to an image processor. The image processor includes pattern recognition logic to match images of emerging pattern captured and transmitted by the camera, to a reference pattern and to generate signal defining an endpoint when a match is detected. A system process controller coupled to the image processor and the plasma processing chamber receives the signal from the image processor and adjusts controls of one or more resources to stop the etching operation.

A sheet processing apparatus which is cable of moving a sheet without applying extra load to the movement of the sheet in the case of laterally moving the sheet for sorting after completion of punching of holes in the sheet. A sheet is conveyed toward an abutment member. The sheet comes into abutment with the abutment member, whereby skew of the sheet is corrected. A punching unit punches holes in the sheet in abutment with the abutment member. A shift unit shifts the punched sheet that has been punched by the puncher in a direction intersecting with a conveying direction of the conveying unit. A controller causes the shift unit to start shifting the sheet in response to separate between the punched sheet and the abutment member.

A whole spine correcting mechanism is composed of a base, a correcting table on said base and with a stretched flexible top layer, a driver unit, a running unit driven by said driver unit for reciprocating movement, and a corrector installed to said running unit and with a central open slot. The wheel of said running unit is rolling along a curved track similar to a correct curve of spine.

An image forming apparatus includes: an image forming part; a first conveyance roller that conveys a recording medium to the image forming part; a forward/reverse-rotatable second conveyance roller, located between the first conveyance roller and the image forming part in a conveyance direction of the recording medium; a contact member, in contact with the second conveyance roller, that forms a nip between the second conveyance roller and the contact member; a first conveyance roller driver that rotate-drives the first conveyance roller in the same direction as the conveyance direction of the recording medium; and a drive transmission mechanism that performs drive transmission from the first conveyance roller driver to the second conveyance roller so as to start rotation of the second conveyance roller in a reverse direction of the conveyance direction of the recording medium before a lead edge of the recording medium arrives at the nip.

A sheet conveyance apparatus includes a conveyance roller pair, a conveyance roller driving unit, a registration roller pair, a registration driving unit, a separation and press-contact unit configured to set the registration roller pair to a separated state and to a press-contact state, and a control unit. After a sheet has stopped at a stop position immediately before the registration roller pair, the registration roller pair having been set to the separated state is set to the press-contact state. The registration roller pair is rotated backward during formation of a loop in the sheet.

The invention discloses a vehicle bumper repairing, maintaining, carrying and storing system which is characterized by comprising a repairing and maintaining region, a conveying region, a storage location region, a guiding and fetching region and a control system. An inlet side of the repairing and maintaining region is connected with an injection molding machine at a previous station, and an outlet side of the repairing and maintaining region is connected with an inlet side of the conveying region; an inlet side of the storage location region is connected with an outlet side of the conveyingregion, and an outlet side of the storage location region is connected with an inlet side of the guiding and fetching region; an outlet side of the guiding and fetching region is connected with an inlet side of a coating production line at a next station. Each of the conveying region and the guiding and fetching region comprises at least one lift type AGV (automatic guide vehicle). The storage location region comprises a plurality of storage locations, and the storage locations are parallelly arrayed. The vehicle bumper repairing, maintaining, carrying and storing system has the advantages that flexible manufacturing production takt and requirements can be met by the multiple lift type AGV and the storage locations, the bumper type switching frequencies can be increased, labor environmentscan be improved, the labor intensity of workers can be relieved, the error rates of the workers can be lowered, labor loss in carrying procedures can be prevented, and bumpers can be efficiently intelligently managed.

A recording paper conveying device includes a registration roller pair and a conveyor roller pair adjacent to the registration roller pair. By rotating the conveyor roller pair, a sheet of recording paper is fed until leading edge of the sheet abuts the registration roller pair in stationary state so that the sheet is deflected by a prescribed amount. Then, conveyor roller pair is rotated at the constant velocity, and while the sheet is kept deflected, rotation of the registration roller pair is started, to start feeding of the sheet by the registration roller pair. While the registration roller pair is kept rotating, rotation of the conveyor roller pair is suspended, and then, the conveyor roller pair is returned to the state of rotation before suspension. Thus, unnecessary deflection of the sheet just in front of the registration roller pair can be prevented.

Provided is a printing apparatus for performing a printing process on a printing surface of a printing medium, the printing apparatus including: a transport device which transports a transport object having the printing medium loaded thereon in a predetermined transport direction; and a transport object locking portion which locks a movement of the transport object at a predetermined position on the upstream side or the downstream side of the transport direction, wherein a skewed posture of the transport object with respect to the transport direction is corrected in the state where the transport object is locked by the transport object locking portion.

An adhesive dispensing apparatus for dispensing an adhesive on a sheet bundle includes a support device for supporting the sheet bundle, a dispensing device disposed adjacent to the support device for dispensing the adhesive on an edge of the sheet bundle supported by the support device, and a transport device disposed adjacent to the support device for transporting the sheet bundle from the edge, to which the adhesive is applied, as a leading edge in a transport direction. A refilling device is provided for refilling the adhesive to the dispensing device, and a moving device moves the dispensing device between a dispending position where the adhesive is dispensed to the edge of the sheet bundle and a refilling position where the adhesive is supplied to the dispensing device from the refilling device.

A transport apparatus includes a driving roller that transports a medium in a transport direction, a driven roller that presses the medium against the driving roller when the medium is transported, a changer that changes a pressing force by which the driven roller presses the medium against the driving roller, and a feeder configured to feed the medium toward the driving roller and pull back the medium in a direction opposite to the transport direction. Before the driving roller transports the medium, the feeder pulls back the medium after the changer has changed the pressing force to a value that is smaller than the value of the pressing force set for transport of the medium.