Abstract: A method for printing a medical image transmits, from a transceiver that is associated with a printer, a wireless query signal and receives a wireless response signal from a transponder that is coupled to a print medium, the transponder having a memory, wherein the response signal is indicative of at least a media orientation and type available for printing. Image data and image orientation information associated with the image data are obtained and a prompt signal provided that indicates a discrepancy between the media orientation and the image orientation associated with the image data. In response to an operator instruction, printing continues.

Abstract: A system for registration of one or more color separation images on a photoconductor belt prevents misregistration that otherwise can occur between different scan lines and between different latent images due to side-to-side movement of the photoconductor belt. The registration system operates to detect movement of the photoconductor belt. Based on the detected movement, the system operates to control modulation of laser beams used to form the latent images to ensure precise registration of the color separation images. As one advantage, the movement of the photoconductor belt can be detected precisely and inexpensively by a photodetector scanned with the same laser beam used for imaging.

Abstract: A method and apparatus for minimizing image banding and for registering multiple image planes of a single image on a receptor drum in electrographic systems. The system for registering multiple image planes of a single image in an electrographic system includes a receptor drum capable of capturing two or more overlaying image planes, an exposure device for forming overlaying image planes on the receptor drum, and at least one developer station transferring a developer to the receptor drum corresponding to each of the overlaying image planes. A measuring device is provided for measuring the rotational position of the receptor drum. A drive mechanism is provided for controlling a motor coupled to the receptor drum by at least one drive belt. A closed loop positioning system is coupled to the measuring device and the drive mechanism. The closed loop positioning system is capable of modulating the angular velocity of the receptor drum to achieve image plane registration of the two or more image planes.

Abstract: A system for registration of color separation images on a photoconductor belt in an imaging system operates to detect a position of an edge of the photoconductor belt. The registration system detects the position with the same laser scanner used for forming latent images on the photoconductor belt. The registration system includes a belt steering control system that steers the photoconductor belt based on the detected position to reduce deviation of the belt from a continuous transport path. The registration system also may include a scan control system that, based on the detected position, controls the modulation of laser beams scanned to form latent images on the photoconductor belt. By controlling belt steering and laser beam scanning, the registration system maintains the image quality of a final multi-color image upon transfer of registered color separation images to an output substrate.