Abstract: An optical communications adapter module is provided which includes a casing of a XENPAK-sized module and an optical communications board assembly positioned within the casing. The module also includes a first optical connector coupled to a second optical connector by fiber optics capable of communicating data between the first optical connector and the second optical connector where the first optical connector is coupled to a data transmission connector of the optical communications board assembly and the second optical connector is positioned at a face plate of the casing. The module also includes a third optical connector coupled to a fourth optical connector through fiber optics capable of transmitting data where the third optical connector is coupled to a data reception connector of the optical communications board assembly and the fourth optical connector is positioned at the face plate of the casing.

Abstract: Single-wire data communications with data storage memory units that may be coupled with a wirelessly energized power supply is enabled in electronic monitoring modules in customer replaceable units (CRUs) such as toner bottles in image forming devices. Communication between modularly designed office equipment and installed CRUs may include data transmission implemented by providing a single point of contact on, for example, a rotational axis at the closed end of a rotating CRU, or by placing a conductive patch, band ring on the periphery of such CRU such that a single-wire data transfer contact is effected with the CRU. A communications link is provided which is not adversely affected by dirt or other foreign objects and is not limited by necessary motion which must be imparted to the CRU for optimum operation in the modular equipment within which the CRU is installed, or other interference that may adversely affects a wireless communications link.

Abstract: A method of controlling line current IL drawn by a printer/copier through a line cord connecting the printer to a power source. The method includes the monitoring line current IL and reducing available printer/copier functionality when the line current exceeds a predetermined value IT to keep the line current from exceeding predetermined maximum value Imax. A printer/copier includes a line cord connecting the printer to an AC power source for providing line current to the printer for printer operation. The printer/copier also includes a current monitor for monitoring line current drawn by the printer through the line cord. The printer/copier also includes a printer/copier functionality controller communicating with the current monitor for reducing printer/copier functionality when the line current exceeds a predetermined value IT to keep the line current from exceeding predetermined maximum value Imax.

Abstract: A method and apparatus for controlling the execution of image processing operations carried out on an array of image signals, the specific operations having been identified by a plurality of predefined windows. The windows are divided into a plurality of non-overlapping tiles, the boundaries of which correspond to transitions from one window region to another. Each tile therefore defines an exclusive region within the array of image signals, and the image processing operations to be applied to the signals within the boundaries of that region. Tile data is stored in one of two memory banks, thereby enabling bank switching and reprogramming of the device in real-time to permit management of complex window shapes. The apparatus is designed to efficiently manage the identification of tile regions while minimizing the required decoding hardware. The apparatus also provides flexibility of programming resulting in greater efficiency of memory usage.

Abstract: A method and apparatus for controlling the execution of image processing operations carried out on an array of image signals, the specific operations having been identified by a plurality of predefined windows. The windows are divided into a plurality of non-overlapping tiles, the boundaries of which correspond to transitions from one window region to another. Each tile therefore defines an exclusive region within the array of image signals, and the image processing operations to be applied to the signals within the boundaries of that region. Tile data is stored in one of two memory banks, thereby enabling bank switching and reprogramming of the device in real-time to permit management of complex window shapes. The apparatus is designed to efficiently manage the identification of tile regions while minimizing the required decoding hardware. The apparatus also provides flexibility of programming resulting in greater efficiency of memory usage.

Abstract: An electronic reprographics/printing machine with at least one scanning array for converting images on documents to image signals, a document tray for holding a stack of the documents to be scanned, a document transport to bring the documents from the tray to the array for scanning, a controller, an input device such as a keyboard, mouse, touch display, etc. for programming in programming parameters with an associated separator code, a control sheet with a bar code representation of the same separator code for interleaving with the documents for scanning by the array, a bar code discriminator for distinguishing documents with bar codes from documents without bar codes, a bar code reader for reading the bar code to identify the separator code thereon, and a control to match the separator code obtained from the control sheet with the separator code associated with the programming parameters whereby the controller operates the machine in accordance with the program parameters.

Abstract: The present invention is an electrometer probe disposed adjacent a photosensitive surface, the electrometer head providing an input amplifier that functions as a comparator to compare the voltage level on the photosensitive surface with a variable high voltage DC power supply. Control circuitry receives the output of the electrometer probe and in response to the signal adjusts the variable high voltage reference supply voltage. The control circuit adjusts the supply voltage to maintain the voltage at a ratio of time above (or below) total time as selected by a selection switch, for example 5 percent, 50 percent or 95 percent.

Abstract: An electrostatic voltmeter or electrometer which includes a probe sensor element for receiving electrostatic charge from a test surface whose potential level is desired to be measured. The probe is conditioned to receive both A.C. and D.C. signals which are amplified by a D.C. amplifier, with the A.C. signal from the probe being fed back to the D.C. amplifier to stabilize its output. In a preferred embodiment, a portion of the probe sensor element is periodically exposed to the test surface to impress the A.C. signal thereon which is utilized to correct the drift in the D.C. amplifier output.

Abstract: A d.c. type electrostatic voltmeter for use in measuring voltage potentials on a surface such as the photoconductive surface of an electrostatic type reproduction machine. Circuitry is provided to automatically compensate for variations the electrometer probe-to-surface spacing, the circuitry including an a.c. signal source, a circuit to superimpose an a.c. signal from the source through the input and onto the d.c. signal output of the electrometer probe, an amplitude detector to detect changes in the a.c. signal source amplitude resulting from changes in the probe-to-surface spacing, a feedback control responsive to such amplitude changes to adjust the amplitude of the combined d.c./a.c. signal to maintain a prescribed a.c. amplitude, and a filter to thereafter remove the a.c. signal leaving the corrected d.c. signal.

Abstract: Apparatus and method to enable potentials applied to various operating components of an electrostatic type reproduction machine to be measured by an electrostatic voltmeter. The apparatus comprises structures designed to place the sensing element of the voltmeter in predetermined spaced relationship with the reproduction machine photoreceptor. A shutter is provided to close off the probe window when the apparatus is not in use and automatic switches are provided to couple the probe to ground to calibrate the probe and protect the probe sensing circuit in response to closure of the shutter. Remote means are provided to enable the probe to be moved into and out of operating position and to operate the shutter.

Abstract: Apparatus to enable potentials applied to various operating components of an electrostatic type reproduction machine to be measured by an electrostatic voltmeter. The apparatus comprises structures designed to place the sensing element of the voltmeter in predetermined spaced relationship with the reproduction machine photoreceptor. A shutter is provided to close off the probe window when the apparatus is not in use and automatic switches are provided to couple the probe to ground to calibrate the probe and protect the probe sensing circuit in response to closure of the shutter. Remote means are provided to enable the probe to be moved into and out of operating position and to operate the shutter.