Abstract: A printing system that includes a personal computer and a printer having multiple output trays. The printer operates both as a server and a printer. The printer serves a program to the personal computer upon request. The program enables the personal computer to print a document using the printer. The program also enables the personal computer to display an image of the printer while the printer is printing the document. The image indicates the printer output tray receiving the document. The image further indicates the present capacity of the output tray to receive additional media.

Abstract: System and method for dynamically providing printing status.

Abstract: A printing device can transmit authentication data to a client computer remotely connected to the printing device. The authentication data can be used by the client computer to authenticate itself to a server computer.

Abstract: A server system and a printing device are described. The server system can obtain environmental data that describes at least one environmental condition. The server system can transmit first data to the printing device. The first data is based upon the environmental data.

Abstract: A printer that includes a multi-colorant print cartridge is described. The printer can determine if a level of a most depleted colorant in the multi-colorant cartridge and a level of a least depleted colorant in the multi-colorant cartridge meet predetermined criteria. The printer can, if the criteria are met, perform a default printing procedure to print the document. The printer can, if the criteria are not met, perform an alternative printing procedure to print the document. The alternative printing procedure uses more of the least depleted colorant to print the document as compared to the default printing procedure.

Abstract: A method of defining a device color profile is described. The method may include (a) storing a first set of color descriptions, wherein each color description describes a color of a different printed test patch in a first target and includes: (i) a set of color component values defined in an overlapping color space, and (ii) at least one color component cross term; (b) obtaining a second set of color descriptions, wherein each color description in the second set describes a color of a different printed test patch in a second target and includes: (i) a set of color component values defined in the overlapping color space, and (ii) at least one color component cross term; and (c) using the stored first set of color descriptions and the second set of color descriptions to define a device color profile.

Abstract: A printing device can receive a replaceable component that includes an integrated memory. The integrated memory can store an indicator for indicating a condition of the component. The printing device can retrieve the indicator from the integrated memory. The printing device can determine from the indicator the condition of the component. The printing device can monitor for an occurrence of a trigger event. The printing device can, if the component is determined to be in a first condition and a trigger event occurs, increment a component usage count. The component usage count can be stored in a memory internal to the printing device.

Abstract: A computing system including a printer capable of retaining print jobs, a first computer and a second computer. The first computer is capable of transmitting a print job to the printer that causes the printer to retain the job. The first computer is also operable to cause the second computer to store a record of the job. A user of the first computer can later retrieve this record in order to identify the job. The user can also interact with the first computer to re-print the job.

Abstract: A ChemFET Sensing system is Described.

Abstract: A book on demand system for manufacturing a set books. The system includes an order placement system and a book manufacturing system. The order placement system includes a computer and a database for storing books in an electronic form. A customer can operate the computer to access the database and to select a set of books to purchase. In addition, the customer can define the storage space will be used to store the set of books. The computer responds to this customer input by manufacturing the set of books so that the books can be placed physically within the storage space.

Abstract: System and method for printing to a printer without the use of a print drive.

Abstract: A printing system that includes a personal computer, a primary printer and an alternate printer is described. The primary printer and the alternate printer each include an embedded Web Server. The primary printer can serve a first program to the personal computer upon request. The first program enables the computer to use the primary printer to print a document. In addition, the first program enables the computer to display a hyperlink referring to a second program if the primary printer fails to successfully print the document. The second program enables the computer to print the document using the alternate printer.

Abstract: A scanner is disclosed that operates to maintain the image sensor in the scanner at a proper exposure level during the scanning of a page despite variations in the scan rate. The scanner includes an illumination system operable to produce light in response to receiving power and to project the light, as a scanning light, onto the page being scanned. In addition, the scanner includes apparatus for moving the scanning light relative to the page at a scan rate, an image sensor for measuring the light reflected from the page and an exposure control device for controlling the exposure of the image sensor. The exposure control device operates to control the exposure of the image sensor by regulating the power in relationship to the scan rate.

Abstract: An atomic force microscope for examining a sample is described. The atomic force microscope includes a probe assembly that includes a first tip and a second tip each directed towards a surface of a sample. The AFM further includes a source for applying a potential across the first tip and the second tip; at least one mechanism operable to cause relative motion between the surface and the probe; and at least one sensor operable to sense current flowing between the first tip and the second tip.

Abstract: A printer is described. The printer includes a CPU, a DMA controller and an internal memory. The CPU and the DMA controller are each connected to a first memory bus. The internal memory is connected to a second memory bus. The printer further included an address translation unit connected to both the first and the second memory bus. The address translation operates to receive virtual addresses from both the CPU and the DMA controller over the first memory bus and translates these virtual addresses into physical addresses. The address translation unit transmits the physical addresses to the memory over the second memory bus.

Abstract: A computer is provided that is able to participate in a challenge-response authentication routine by using a network management protocol. In one embodiment, a first computer issues a challenge to a second computer by transmitting an SNMP SetRequest message to the second computer. The SetRequest message includes a pre-determined object identifier and a challenge block associated therewith. The second computer responds by transmitting an SNMP GetResponse message. The GetResponse message includes the object identifier and the response block associated therewith. The first computer receives this message and verifies the response block.

Abstract: A printing system is described. The printing system includes a printer capable of utilizing print material contained by a cartridge. The printer is capable of detecting when the level of the print material is at a different one of a plurality of pre-determined levels. The printer is also capable of counting pixels. The printer can periodically estimate the remaining life of the cartridge using a reference print material level and the change in pixel count since the print material was at the reference material level.

Abstract: A storage system is described that includes a controller and a disk array. The controller operates to coordinate data transfers between the disk array and an external host computer in response to I/O commands received from the host computer. The controller further operates to execute a background program each time certain conditions are met. Under the direction of the background program, the controller operates to identify corrupt but readable data blocks based upon the value of the data block and the value of an error code stored for the data block.

Abstract: A computer automatically selects a device, such as a printer, over a network for the computer to use without a user having to provide the network address of the device. The computer identifies a group of devices connected to a network that meet certain pre-determined criteria. The computer then selects the device from this group that has the lowest uptime. This device is assumed to be the device the user wishes to configure their computer to use. After the device is selected, the computer then can operate to configure itself to use the device.

Abstract: Apparatus and method for generating a print job from a device driver interface command stream (command stream) is described. The command stream describes multiple collated copies of a document but is in an undifferentiated form. The print job that is generated includes print data that describes only a single copy of the document and a command that indicates the number of printed copies that are to be printed.