Apparatus and methods of detecting print media orientation
First Claim
1. A print media orientation detecting apparatus comprising:
- a printer assembly having a radio frequency interrogating device, the radio frequency interrogating device including a radio frequency antenna and a read/write module for detecting the presence of a radio frequency signature via said radio frequency antenna;
a print controller in communication with said read/write module for receiving a signal from said read/write module indicative that a radio frequency signature has been detected, the print controller including stored orientation data indicative of a predetermined location of a radio frequency signature on a designated type of print media; and
at least one print media sensor in communication with said print controller, said print media sensor communicating a signal to said print controller when print media has reached a designated point along said print media pathway;
wherein print media embedded with a radio frequency signature is detected by said radio frequency interrogating device allowing the orientation of said print media to be determined.
4 Assignments
0 Petitions
Accused Products
Abstract
A radio frequency signature (88) on a cut sheet of print media (28) is detected by a radio frequency interrogating device (94) to determine whether the print media (28) is properly oriented. The leading edge (124) or trailing edge (126) of the print media (28) is detected by one or more print media sensors (86, 90). A print controller (24) can note the time (t1) and cause the radio frequency interrogating device (94) to detect the radio frequency signature (88) at a time (t2) when the print media has reached a predetermined point along the print media pathway (110). The position of the radio frequency signature (88) on the print media (28) can be calculated using the time differential (t2−t1), the velocity profile of the print media and the known separation between the print media (28) and the radio frequency signature (88). By comparing the computer position with the expected position, the orientation of the print media (28) can be determined.
22 Citations
20 Claims
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1. A print media orientation detecting apparatus comprising:
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a printer assembly having a radio frequency interrogating device, the radio frequency interrogating device including a radio frequency antenna and a read/write module for detecting the presence of a radio frequency signature via said radio frequency antenna; a print controller in communication with said read/write module for receiving a signal from said read/write module indicative that a radio frequency signature has been detected, the print controller including stored orientation data indicative of a predetermined location of a radio frequency signature on a designated type of print media; and at least one print media sensor in communication with said print controller, said print media sensor communicating a signal to said print controller when print media has reached a designated point along said print media pathway; wherein print media embedded with a radio frequency signature is detected by said radio frequency interrogating device allowing the orientation of said print media to be determined. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A print media orientation detecting apparatus comprising:
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a printer assembly having a print media feeder for conveying print media into a designated print area of the printer assembly; a radio frequency interrogating device; at least one print media sensor configured to detect the presence of print media as it traverses said designated print area, the at least one print media sensor further configured to detect the leading edge of print media as it traverses a print area of said printer assembly; and a print controller operatively connected to said at least one print media sensor, the print controller configured to cause said radio frequency interrogating device to detect a radio frequency signature embedded in said print media and to determine the orientation of print media by determining the time difference between the time the leading edge of the print media is detected and the time when a radio frequency signature is detected. - View Dependent Claims (9, 10, 11)
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12. A method of detecting the orientation of print media comprising the steps of:
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detecting the presence of a radio frequency signature on the print media to allow the orientation of said print media to be determined; detecting the presence of the print media as it reaches a predetermined point along a print media pathway via a print media sensor; detecting the presence of the radio frequency signature on the print media as it reaches a predetermined point along the print media pathway via a radio frequency interrogating device; calculating the position of the radio frequency signature on the print media; and determining the time difference between the time when the print media is detected by a print media sensor and the time when the radio frequency signature is detected. - View Dependent Claims (13, 14, 15, 16)
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17. A method of detecting the orientation of print media as it traverses along a print media pathway, the method comprising the steps of:
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a print media sensor detecting the print media at a predetermined point along the print media pathway; a radio frequency interrogating device detecting the presence of a radio frequency signature on the print media; and a print controller determining the orientation of the print media, the print controller configured to determine the orientation of the print media by calculating the time difference between the time when the print media is detected and the time when the radio frequency signature is detected. - View Dependent Claims (18, 19, 20)
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Specification