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The message is encountered when printing on older HP LaserJet printers such as the LaserJet II, III, and 4 series. It means that the printer is trying to print a document that needs " Letter size " (8½ × 11 in.) paper when no such paper is available.
* Lead alpha codes: A – HP Photosmart Axxx Compact/Portable photo printer; B – HP Photosmart Pro Bxxxx photo printer; C – HP Photosmart Cxxxx All-in-One photo printer; CM – HP Color LaserJet CMxxxx Multifunction printer; CP – HP Color LaserJet CPxxxx printer; D – HP Deskjet Dxxxx printer; D – HP Photosmart Dxxxx Single Function ...
Other products with PCL 3 support were the HP DeskJet ink jet printer, HP 2932 series matrix printers and HP RuggedWriter 2235 matrix printers. PCL 3 is still in use on several impact printers which replaced the obsolete HP models. PCL 3+ (mono) and PCL 3c+ (color) are used on later HP DeskJet and HP PhotoSmart products.
This class of status code indicates the client must take additional action to complete the request. Many of these status codes are used in URL redirection. [2]A user agent may carry out the additional action with no user interaction only if the method used in the second request is GET or HEAD.
Turbo coding is an iterated soft-decoding scheme that combines two or more relatively simple convolutional codes and an interleaver to produce a block code that can perform to within a fraction of a decibel of the Shannon limit.
Printer tracking dots, also known as printer steganography, DocuColor tracking dots, yellow dots, secret dots, or a machine identification code (MIC), is a digital watermark which many color laser printers and photocopiers produce on every printed page that identifies the specific device that was used to print the document.
The on-line textbook: Information Theory, Inference, and Learning Algorithms, by David J.C. MacKay, contains chapters on elementary error-correcting codes; on the theoretical limits of error-correction; and on the latest state-of-the-art error-correcting codes, including low-density parity-check codes, turbo codes, and fountain codes.