摘要:
The operation of an automatic photographic paper cutter is controlled by a programmable digital processor such as the microprocessor. The microprocessor controls the paper feed, the knife assembly, the display, and other related operations of the automatic paper cutter as a function of a step status signal which indicates whether the stepper motor paper drive has taken a step, a cut status signal which indicates whether a cut mark on the paper has been sensed, and stored control information.
摘要:
The present invention is a strip feed control which is particularly useful in photographic systems such as film and paper cutters, film notchers, and printers. The photographic strip material is fed by a predetermined feed length during each operating cycle. The operator of the system visually monitors the position of the strip with respect to a reference position or indicator along the feed path and provides adjustment signal through an operator control knob. The strip position is moved in accordance with the desired adjustments, and the predetermined feed length for the next operating cycle is derived from the predetermined feed length of the just completed operating cycle, together with any adjustment in the strip position which was made by the operator.
摘要:
A photographic film cutter for cutting film segments from a web of photographic film includes a knife located along a web advancement path, a splice sensor located upstream from the knife, and a notch sensor located between the knife and the splice sensor. A stepper motor moves the web along the path in fixed length steps. A step counter counts the steps to determine the length that the web has advanced since the web was cut by the knife. When a splice is detected by the splice sensor, a maximum feed switch determines, based upon the count of the step counter, whether the distance from a leading cut edge to the splice sensor is greater than or equal to a predetermined maximum distance. If the length is less than the maximum, the web is advanced until a portion of the web adjacent the splice is positioned at the knife, and the web is cut. If the length from the cut edge to the splice is greater than the predetermined maximum length, an additional cut is made. A minimum feed switch determines if the distance from the leading cut edge to the knife is greater than a predetermined minimum. A notch distance verifier determines whether notches marking the film are normally spaced, and if so, the web is cut between frames. If a normal notch is not found, the web is advanced by an additional step count before cutting to assure that no frame is bisected by the knife.
摘要:
An automatic photographic paper cutter cuts photographic prints from a strip of photographic paper which bears cut indicia indicating the locations of desired paper cuts. An indicia sensor is positioned in fixed relationship with respect to the paer cutter knife assembly at a distance less than the shortest length of print to be cut. The paper cutter derives and stores a feed-after-sense signal, which represents the length the paper strip must be fed after a cut indicium is sensed in order for the strip to be cut at the desired cut location represented by that cut indicum. During automatic operation of the paper cutter, the photographic paper strip is advanced until a cut indicium is sensed, is advanced by an additional distance determined by the feed-after-sense signal, is stopped, and is cut at the desired cut location.
摘要:
A management data system is used in conjunction with a photographic print cutting and sorting system. First and second storage means store two sets of data for each of a plurality of operators and printers. The two sets of data are independently resettable so that they reflect totals or percentages over two different time periods (for example, daily and monthly totals or percentages). A portable data retrieval device selects the particular operator or printer data from the two sets of data and displays operator totals, operator rates, printer totals or printer percentages based upon either the first or second set of data.
摘要:
An improvement for use with an automatic print cutter mechanism which is actuated by sensing control indicia positioned along a continuous strip of photographic prints, said improvement comprising a wide scanning angle sensor capable of detecting said indicia of numerous configurations when same are misaligned with respect to the center line of said sensor and means for independent lateral and transverse adjustment of said sensor.
摘要:
A photographic film packing apparatus cuts film segments from a web of photographic film, partially overlaps the segments in a shingled manner, and conveys the segments in partially overlapping relationship into an insertion opening of a package, such as a customer order envelope. The apparatus advances the web a selected distance past a knife location, at which a knife assembly is located. The knife assembly severs a film segment from the web. The movement of the film segment is then reversed to cause a trailing edge of the film segment to be deflected downward out of the path of the leading edge of the web. The web is then advanced while the segment is maintained stationary until the web has overlapped the segment by a predetermined amount. The web and the film segment are then conveyed together toward the insertion opening until a desired cut location on the web is aligned with the knife location. The knife assembly then cuts another film segment from the web. As the apparatus continues to operate, additional film segments are partially overlapped in a similar manner until all segments corresponding to a customer's order are severed from the web. The film segments are conveyed in partially overlapping relationship into the insertion opening.
摘要:
A photographic print cutting and sorting apparatus cuts photographic prints from a continuous roll of processed photographic print paper and sorts the individual prints into good, remake and reject prints. The print sorter includes a main conveyor line or chute for good prints, a first branch conveyor line or chute for remake prints, and a second branch conveyor line or chute for reject prints. First and second diverters are provided for diverting the remake and reject prints into the first and second branch conveyor lines. The operation of the diverters is based upon remake and reject indicia marked on photographic prints and sensed by an indicia sensor. A print sensor located near the discharge ends of the main conveyor line and the first and second branch conveyor lines provides a signal when a trailing edge of a print passes the print sensor. A control circuit receives signals from the indicia sensor and the print sensor and controls the operation of the cutter and the first and second diverters. If the print being conveyed and sorted is a remake or reject print, the control circuit prevents the cutter from cutting another print until a signal is received from the print sensor for that print. If, on the other hand, the print being conveyed and sorted is a good print, the control circuit permits another print be cut prior to receiving a signal from the print sensor.
摘要:
A microprocessor controls the operation of a stepper motor. A look-up table containing a sequence of numbers is used to generate up ramp or down ramp speed control of the stepper motor. The microprocessor supplies numbers from the look-up table to a stepper motor speed control, which causes the stepper motor to step at rates determined by the numbers supplied by the microprocessor.
摘要:
A strip cutting apparatus such as a photographic paper cutter senses position of the blade which cuts segments from the strip. The strip is driven in a reverse direction by a predetermined number of steps after the blade has cut the strip and before the blade is retracted. This back step motion or reverse motion eliminates the occurrence of interference between the forward edge of the strip and the blade as the blade is retracted. Damage to the forward edge of the strip caused by interference with the retracting blade is thereby avoided.