Abstract: A paper sensing apparatus of an office machine has a sensor actuator disposed to pivot with respect to a pivot center of a conveying roller by a printing paper when the printing paper is conveyed, and a sensing unit generating a paper sensing signal in accordance with a rotation of the sensor actuator. Accordingly, the paper sensing apparatus is capable of accurately sensing a leading end of the printing paper, and thus a top margin of the printing paper can be effectively controlled as the paper sensing apparatus is installed to be operated with respect to a rotation center of the conveying roller so that an error generated during sensing a paper top position due to a lengthened distance between the conveying roller and a transferring roller can be reduced.

Abstract: A print medium exit system in a printer includes a kicker device ejecting a sheet of print medium out of the printer. A clutch mechanism prevents actuation of the kicker device when the clutch mechanism is engaged by the sheet of print medium.

Abstract: A media cassette adapted to hold multiple media types and an imaging apparatus which includes the media cassette. The media cassette includes a device for identifying the type of media loaded in the cassette to permit an adjustment of printer electronics based on the identified media in the cassette. The cassette comprises a cover that includes a section that is adapted to identify a a type of media. The identifying section can include a reflective surface or label which cooperates with a sensor in the imaging apparatus to detect and/or not detect light that is reflected back to the sensor. This signal is then used by the imaging apparatus to identify the type of media in the cassette, and adjust imaging operations based on the type of media in the cassette.