Abstract: The present invention provides printers and methods of forming an image. One embodiment of the invention provides a printer including a frame; a drive assembly coupled with the frame and configured to transport media along a media path within the printer; an imaging assembly configured to receive a plurality of images and provide the images upon the media; and an image controller configured to selectively vary the resolution of the images. A method of forming an image according to the invention comprises providing media at a print velocity; providing a first reference signal; converting the first reference signal to a second reference signal; forming an image upon media according to the second reference signal; following the forming, outputting media having the image thereon; and adjusting the second reference signal responsive to the forming.

Abstract: A multi-link intercom system having a large number of stations selectively connected to one of eight links by respective station controllers. When a calling station goes off-hook, its station controller connects the station to the first available link during the one of four link access periods corresponding to that link. The calling station then applies appropriate signals to the link identifying the called station. These signals are decoded by a link controller for the link which generates called station address signals during its corresponding link access period. All of the link controllers generate called station address signals on the same bus, but the signals are time multiplexed to occur during a portion of each link access period corresponding to each link. The station controller for the called station recognizes its address and connects its station to the link corresponding to the portion of the link access period in which the station address was received.

Abstract: A single line hold circuit adapted for connection between the tip and ring leads of a telephone line. The circuit comprises impedance means for connection between the tip and ring leads, the impedance means including a semiconductor element having high and low impedance states, the impedance of the low impedance state being sufficiently small to maintain the telephone line in a hold condition. The circuit further comprises means for causing the semiconductor to be in its low impedance state following an interruption of a predetermined length of time in loop current. A double line hold circuit is also illustrated.

Abstract: The system includes up to four communication links, a separate link selector for each link, and a separate link scanner for each telephone station. The system is suitable for usage with conventional dial pulse or tone selective key telephone sets.