Abstract: An embodiment of a media movement apparatus is used to detect an edge of a unit of media in a media path in an inkjet printer using an optical sensor. When the inkjet printer is operating in a mode in which units of media are continuously moved into the media path, a mechanical sensor will not reliably allow detection of the leading edge of a unit of media. Determining the location of the leading edge of the unit of media is done to correctly place an image on the unit of the media. After ejecting the previous unit of the media into an output tray, the current unit of the media is moved backward in the media path while measuring the output of an optical sensor. If the edge is detected while moving backward, the current unit of the media is moved to the input side of a print zone. If the edge is not detected and the optical sensor indicates the presence of media, a media jam is indicated.

Abstract: Time between recording print on one media sheet and a subsequent media sheet is substantially reduced by ejecting, picking and loading within a single transmission state. In a continuous feed mode multi-sheet job, individual media sheets are continuously picked and loaded. The leading edge of one media sheet is substantially adjacent to the trailing edge of the prior media sheet. A media support plate is maintained in a raised position during the entire continuous feed cycle. The support plate biases a paper stack into communication with a pick roller. As the trailing edge of one media sheet exits the media stack, the leading edge of the next media sheet is already in position for engagement with the pick roller. Upon completion of print recording, a media sheet is ejected into an output tray by accelerating the media sheet. Such acceleration is achieved while remaining in the single transmission state.

Abstract: Multiple links with series resistors are connected to address select transistors and a sense line in a printhead encoding circuit. This arrangement provides an increased number of possible states, thereby increasing the amount of information which can be encoded for such purposes as pen identification.

Abstract: A new wheel assembly (14), with a gear reducing hub (22), and including a new hand wheel assembly (30) mounted on a hand wheel hub (36) for a manual multispeed wheelchair (10), that has an improved shifting mechanism that allows easy shifting at user's hand level. A shifter (76) is rotated, which axially moves a shift member (52) to couple with drive chock openings (46) in direct drive or a planetary gear system (58) for low gear operation. The new wheel assembly (14) also includes a quick disconnect mechanism for easy change of the wheel assembly (14) from the wheelchair (10) without tools. A torque collar (144), on the inboard side of the hub (22), couples with a sleeve assembly (136) on the wheelchair (10) and allows torque to transfer directly from hub (22) to wheelchair (10).