Abstract: In some examples, a print controller is to receive a preference relating to a choice between quantity in printing images by a printing apparatus and quality of printed images and vary a threshold value according to the received preference to produce a dynamically set threshold value. The print controller is to further initiate printing of a print job using the first print head array, determine whether an image quality defect value associated with printing at least one of image of the print job exceeds the dynamically set threshold value, in response to determining that the image quality defect value does not exceed the dynamically set threshold value, continue printing the at least one image with the first print head array, and in response to determining that the image quality defect value exceeds the dynamically set threshold value, cause movement of the first print head array from a first position to the servicing station.

Abstract: In some examples, a print controller is to receive a preference relating to a choice between quantity in printing images by a printing apparatus and quality of printed images and vary a threshold value according to the received preference to produce a dynamically set threshold value. The print controller is to further initiate printing of a print job using the first print head array, determine whether an image quality defect value associated with printing at least one of image of the print job exceeds the dynamically set threshold value, in response to determining that the image quality defect value does not exceed the dynamically set threshold value, continue printing the at least one image with the first print head array, and in response to determining that the image quality defect value exceeds the dynamically set threshold value, cause movement of the first print head array from a first position to the servicing station.

Abstract: A print controller initiates printing of a print job by at least one print head array of a printing system. In response to determining that the at least one print head array should be serviced, the print controller determines whether the servicing of the at least one print head array will interrupt the print job. In response to determining that the servicing will not interrupt the print job, the print controller causes movement of the at least one print head array from a given position to a servicing station of the printing system. In response to determining that the servicing will interrupt the print job, the print controller performs other tasks.

Abstract: A print controller initiates printing of a print job by at least one print head array of a printing system. In response to determining that the at least one print head array should be serviced, the print controller determines whether the servicing of the at least one print head array will interrupt the print job. In response to determining that the servicing will not interrupt the print job, the print controller causes movement of the at least one print head array from a given position to a servicing station of the printing system. In response to determining that the servicing will interrupt the print job, the print controller performs other tasks.

Abstract: A printing apparatus including at least one print head array coupled to the printing apparatus, a servicing station configured to service the at least one print head array, and a print controller software coupled to computer readable medium and the print controller software configured to perform the steps of moving the at least one print head array to the servicing station when at least one occurs from the group consisting of a nozzle head crash, a clogged nozzle, a failure of a print head, a misalignment, and the image quality defect value is above a threshold value and configuring at least one additional print head array to continue a print job started by the at least one print head array when the at least one print head array is at a position following the at least one print head array and the at least one additional print head array is functional.

Abstract: An electronic system has independently coolable first and second zones. The electronic system includes a first zone having a first zone fan and a plurality of first zone connectors for connecting electronic modules and a second zone having a second fan zone and a plurality of second zone connectors for connecting electronic modules. A module manager is also provided for communicating with the first and second zone connectors and with the first and second zone fans. The module manager can independently control the speed of the first and second zone fans based upon operational parameters received from the first and second zone connectors.

Abstract: A fluid container includes a body having an inlet configured to receive a fluid, a printhead configured to eject the fluid received at the inlet, and an optical receiver at the body and positioned in optical communication with the inlet such that optical signals received at the inlet are received at the optical receiver.

Abstract: A printing apparatus including at least one print head array coupled to the printing apparatus, a servicing station configured to service the at least one print head array, and a print controller software coupled to computer readable medium and the print controller software configured to perform the steps of moving the at least one print head array to the servicing station when at least one occurs from the group consisting of a nozzle head crash, a clogged nozzle, a failure of a print head, a misalignment, and the image quality defect value is above a threshold value and configuring at least one additional print head array to continue a print job started by the at least one print head array when the at least one print head array is at a position following the at least one print head array and the at least one additional print head array is functional.

Abstract: A system (100, 500, 600, 800) of ink and multi-channel data delivery includes an optically transmissive tubular body (113) having at least two ends (105, 107). The tubular body (113) defines an ink channel between an ink supply (101) and at least one inkjet pen (117, 521, 525, 529, 901, 903). A multi-channel optical transmitter (111, 300, 400) is in optical communication with one end (105, 107) of the tubular body (113), and an optical receiver (115, 509, 511, 513) is in optical communication with another end (105, 107) of the tubular body (113).

Abstract: Embodiments of a fluid container are disclosed. In some embodiments, the inkjet pen is configured to receive light and a fluid.

Abstract: In a system and method for managing the performance of a bladed computer system, a management blade identifies one or more individual blades in a chassis. The management blade then automatically determines an optimal performance configuration for each of the individual blades and provides information about the determined optimal performance configuration for each of the individual blades to a service manager. Within the service manager, the information about the determined optimal performance configuration is processed and an individual frequency is set for at least one of the individual blades using the information processed within the service manager.

Abstract: An electronics cooling fan comprises a centrifugal clutch adapted to disengage and freewheel upon fan failure.

Abstract: A rack equipment power purchase plan supervision system and method is presented. In one embodiment of the present invention, a rack equipment power purchase plan supervision system includes rack equipment for processing information. The rack equipment is supervised by a rack equipment power purchase plan supervision component in accordance with a power purchase plan. The power purchase plan defines operational settings of the rack equipment for various power supply conditions. A communication bus for communicating information communicatively couples the power purchase plan supervision component and the rack equipment.

Abstract: In a system and method for the frequency management of processors or blades to allow capacity on demand a requestor of the computer system develops a need for an increased performance from the computer system. The requester then sends a request to the grantor of the computer for an increase in the computer performance. If the grantor authorizes the request, the grantor sends the requestor the requisite information needed to increase the frequency associated with blades or processors in the computer system. The computer system is then operated at an increased frequency to satisfy the demand.

Abstract: A rack equipment management system and method for providing a convenient and efficient manner to automatically manage rack equipment associated with information processing based upon power consumption and heat dissipation policies is presented. In one embodiment of the present invention, a rack equipment management system includes a rack equipment management policy data store, a management component, and a communication bus. The rack equipment management policy data store stores policy information related to rack equipment operations. The management component manages power consumption and thermal load of the rack equipment. The communication bus communicatively couples the rack equipment management policy data store and the management component.

Abstract: An electronics cooling fan comprises at least one collapsible fan blade driven by centrifugal force to extend radially as the fan spins and driven by elastic force to retract as spinning slows or stops.

Abstract: A fan system is described for cooling a heat dissipating component within an electronic system. The fan system includes a fan that is controllable to a desired operating speed and operatively connected to the heat dissipating component. The fan system further includes a fan manager that determines an operating parameter indicative of the heat dissipated by the heat dissipating component, calculates a control signal indicative of the desired speed of the fan based upon the value of the operating parameter, and communicates the control signal to the fan to control its speed.

Abstract: An electronics cooling fan comprises at least one collapsible fan blade driven by centrifugal force to extend radially as the fan spins and driven by elastic force to retract as spinning slows or stops.

Abstract: An electronics cooling fan comprises a centrifugal clutch adapted to disengage and freewheel upon fan failure.

Abstract: A frequency manager automatically selects a clock frequency for each device or bus, or for a plurality of devices or buses, in a system, based on various factors and objectives. These factors and objectives can include optimizing performance of the devices without exceeding the system's power/thermal budget. The frequency manager can then control circuits that generate and provide clock signals having the selected frequency(ies) to these devices or buses. For example, in a system that is less than fully populated with devices, embodiments of the invention can select higher clock frequencies than a fully populated system would utilize. Some embodiments of the invention select higher clock frequencies for high-bandwidth devices than for low-bandwidth devices. Other embodiments use information about application programs that will be executed by systems, such as which devices these application programs will frequently access, to select higher clock frequencies for the frequently accessed devices.