Abstract: A color shift image pattern is rendered on a recording medium, by creating, in a pre-defined image region, an image pattern including a first pattern having a first color and a second pattern having a second color, the first pattern having a width smaller than the second pattern, the first color being different from the second color; and rendering, using marking materials, the image pattern on a recording medium, a height of the marking materials used to render the second color being higher than a height of the marking materials used to render the first color such that the first pattern and the second pattern are visible when a relative angle between an observer's viewing angle and an angle of illuminating the recording medium by an illumination source is a first angle, and the first pattern is not visible when the relative angle between the observer's viewing angle and the angle of illuminating the recording medium by the illumination source is a second angle, the second angle being not equal to the first an

Abstract: Methods and devices identify gloss levels and appearance colors for different printers based on the common printing capabilities of the different printers. Such gloss levels and appearance colors are formed from different combinations of one or more colorant marking materials combined or stacked on a print substrate surface. Further, such methods and devices identify common color metameric pairs based on the gloss levels and the appearance colors. Each of the common color metameric pairs has the same appearance color, but has a different gloss level. Patterns of different gloss levels in an area of uniform appearance color form a differential gloss security feature on a printed document. The methods herein can store a file with the common color metameric pairs in a non-transitory storage medium that is operatively connected to at least one of the different printers.

Abstract: Methods and devices identify gloss levels and appearance colors for different printers based on the common printing capabilities of the different printers. Such gloss levels and appearance colors are formed from different combinations of one or more colorant marking materials combined or stacked on a print substrate surface. Further, such methods and devices identify common color metameric pairs based on the gloss levels and the appearance colors. Each of the common color metameric pairs has the same appearance color, but has a different gloss level. Patterns of different gloss levels in an area of uniform appearance color form a differential gloss security feature on a printed document. The methods herein can store a file with the common color metameric pairs in a non-transitory storage medium that is operatively connected to at least one of the different printers.

Abstract: A processor controls a marking engine to print a uniform region having a visually uniform color for an observer within all areas of the uniform region. The processor also controls the marking engine to print different gloss patterns within the uniform region. The different gloss patterns have first and second gloss regions, and the gloss difference between the first and second gloss regions forms gloss marks. Additionally, the processor controls the marking engine to print different infrared patterns within the uniform region to form infrared marks. In some embodiments, the infrared patterns are only within the first gloss regions and are not within the second gloss regions.

Abstract: A processor controls a marking engine to print a uniform region having a visually uniform color for an observer within all areas of the uniform region. The processor also controls the marking engine to print different gloss patterns within the uniform region. The different gloss patterns have first and second gloss regions, and the gloss difference between the first and second gloss regions forms gloss marks. Additionally, the processor controls the marking engine to print different infrared patterns within the uniform region to form infrared marks. In some embodiments, the infrared patterns are only within the first gloss regions and are not within the second gloss regions.

Abstract: A processor receives infrared inputs from at least one sensor when an item is placed upon a user interface detectable by the sensor. The processor evaluates the infrared inputs to identify an infrared-printed content printed on the item. The processor retrieves an electronic representation related to the item from at least one computer storage device based on the infrared-printed content and displays the electronic representation related to the item on the user interface.

Abstract: In a system and method for facilitating recovery from an interrupted print job, marking sets are inserted into the print job to determine where such interruption occurred. The marking sets identify a location within the print job, and by providing such marking sets to a reading device, a print job control system communicatively connected thereto is able to determine which portion or portions of the print job failed to complete. Thereafter, the print job control system initiates reprinting of the portion or portions of the print job that were interrupted.

Abstract: A method and apparatus automatically communicating status information relative to a document production job by a printer. An application file is provided that includes information to be reproduced as a document reproduction job. Preferably, the application file is encoded with a document description language. E-mail address information is embedded in the application file relating to the party or parties to receive the status information. The application file is sent to the printer. At the printer, the email address is detected. The application file is processed to produce a printed document and an email message is sent from the printer relative to the status of the document reproduction job.

Abstract: A method and apparatus automatically communicating status information relative to a document production job by a printer. An application file is provided that includes information to be reproduced as a document reproduction job. Preferably, the application file is encoded with a document description language. Email address information is embedded in the application file relating to the party or parties to receive the status information. The application file is sent to the printer. At the printer, the email address is detected. The application file is processed to produce a printed document and an email message is sent from the printer relative to the status of the document reproduction job.

Abstract: A multicolor printing method employing a color printer capable of printing non-overlapping red, green, blue and black colorants, includes the steps of: providing a digital color image having n-bit/color pixels; dividing the digital image into a plurality of pixel blocks; identifying pure red, green, blue, black and white pixels in each block and assigning such pixels to be printed with the corresponding colorant or white (no colorant); calculating percent red, green, blue, black and white for remaining pixels in each block; using the calculated percentages, assigning remaining pixels in each block to be printed with pure colorant or white according to a predetermined filling procedure; and printing the image using the assigned colorants.