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Manufacturer's Part # C4251AThis product is Refurbished. HP LaserJet 4050 printer is both versatile and expandable. It also comes equipped with security and convenience features that deliver a level of usability and manageability that was once available only with more expensive models. The fuser and contact rollers have been replaced in these printers. They all come with a 90 day warranty and a personal guarantee thereafter. Page count is usually under 40 and #44; 000 and the 4050 printers are carefully cleaned and examined before delivery. You can be assured you will receive a high quality printer at a fraction of the cost. 17 PPM 13 Seconds first page out. This product is Refurbished and comes with a 90 day warranty.

The LaserJet 4050 line of laser printers offers highly manageable and forward-thinking business-printing solutions. The base model of the line, the LaserJet 4050, offers a straightforward design and many features that make sense for the busy professional. The LaserJet 4050's standard 500-sheet paper tray slides into the front of the printer; paper follows an S-path through the printer and ejects face-down in a generous 250-sheet output bin on the top of the unit. Alternately, you can flip down a tray in the rear of the printer that handles 50 sheets. The printer's front also hosts a flip-down, multipurpose feed tray that can handle 100 sheets of ordinary paper as well as media ranging from 3-by-5-inch cards to legal-sized paper. The tray's adjustable guides automatically center the paper. We found the menu structure to be immediately understandable and the control panel easy to use. On the control panel, three LED indicators show the printer's online status, activity, and error conditions, while a series of buttons on the right allows you to maneuver through the printer's scrollable menus. The LaserJet 4050's online help system allows you to scroll through troubleshooting solutions on the control panel. The LaserJet 4050 comes with two CDs: one has driver and management software for Windows 95, Windows 98, Windows NT 4.0, and Macintosh; the other contains the printer's documentation in Adobe Acrobat format. Hewlett-Packard's drivers are quite mature, but we missed having the printed user's guide, which is appropriate for a printer of this class. The software installed quite nicely, however, and the wizard-based installation walked us through the process quickly. PCL6 and Postscript level-2 drivers are installed, with PCL6 as the default printer driver. The driver features a graphical representation of the printer; you click on the tray you wish to use and select the print quality. Other nice features of the driver are customizable watermark support and ZoomSmart settings, which allow the printer to automatically scale documents to fit different paper sizes or zoom levels. HP FontSmart, a font management utility with 110 fonts, helps you install and remove fonts as well as preview them on screen and print samples. The setup program lets you choose between a typical or network- administrator installation. The difference is that the administration software--HP JetAdmin and HP Resource Manager--comes into play if your printer is attached to a network. JetAdmin enables network managers to monitor the status and configure features of multiple printers locally or over any IPX/SPX or TCP/IP network. Resource Manager handles more advanced functions, such as macro and font management of the LaserJet 4050's optional hard-disk contents. The 4050 has built-in JetSend compatibility, which allows it to receive jobs over the Internet from any Hewlett-Packard or third party JetSend-compatible device, such as a scanner or notebook. The LaserJet 4050 comes with parallel and serial interfaces standard, but 10Base-T and 10Base-T Ethernet, Token Ring, and Apple Local Talk options are also available. The LaserJet 4050 has a port for an optional Fast Infrared (FIR) receiver in the rear. This option is handy if you have a compatible notebook and like the idea of printing wirelessly from across your office. Our testing validated both the 17 pages-per-minute speed rating and the unit's excellent output quality. Formatted documents looked crisp and consistent at both high and average resolutions, and photographs showed great contrast and fine transitions. We printed hundreds of pages on our test unit without a jam. In addition to font and macro storage, a hard disk enables the LaserJet 4050 to perform several types of jobs: private printing, proof and hold, stored jobs, and quick copies. Private printing enables users to encode a print job with a PIN number and release the job at the printer by entering the code. Proof and hold is a feature bound to save paper--it prints the first copy of a document and only prints the subsequent ones after you look at the proof and release the job at the printer. Quick copying lets you print up to 999 additional copies of the last job without reloading the source application. Stored jobs can live at the printer, and you can print them on demand from the control panel without any PC involvement. Pros: Strong manageability features Excellent control panel 17 pages per minute performance Innovative workgroup options Cons: No printed user's manual in the box Printer cable not included

Save big on your office equipment needs with this HP LaserJet 4100TN Laser Printer!Quick and easy to install, this HP LaserJet 4100 printer provides fast, high-quality printing with ProRes 1200 and FastRes 1200 settings for outstanding graphics. The LaserJet 4100 printer features an Embedded Web server for online supply management, an internal Jetdirect print server, and an expandable design for increased printing flexibility, memory, and paper-handling capacity. Order today!

HP C4251A LaserJet 4050 - 17ppm, 1200dpi, 8MB, 500 Sheet Tray, White

The future of the computer and communications industries is converging on mobile information appliances - phones, PDAs, laptops and other devices. The ARM is at the heart of this trend, leading the way in system-on-chip (SoC) development and becoming the processor core of choice for many embedded applications. System-on-chip technology is changing the way we use computers, but it also sets designers the very challenging problem of getting a complex SoC design right first time. ARM System-on-Chip Architecture introduces the concepts and methodologies employed in designing a system-on-chip based around a microprocessor core, and in designing the core itself. Extensive illustrations, based on the ARM, give practical substance to the design principles set out in the book, reinforcing the reader's understanding of how and why SoCs and microprocessors are designed as they are. ARM System-on-Chip Architecture: - presents and discusses the major issues of system-on-chip design, including memory hierarchy, caches, memory management, on-chip buses, on-chip debug and production test - provides an overview of the ARM processor family, enabling the reader to decide which ARM is best for the job in hand - describes the ARM and Thumb programming models, enabling the designer to begin to develop applications - covers all the latest ARM products and developments, including StrongARM, the ARM9 and ARM10 series of cores, and the ARM-based SoC components at the heart of Ericsson's Bluetooth technology, the Psion Series 5 PDA and Samsung's SGH2400 GSM handset - includes details on the AMULET asynchronous ARM cores and the AMULET3H asynchronous SoC subsystem ARM System-on-Chip Architecture is an essential handbook for system-on-chip designers using ARM processor cores and engineers working with the ARM. It can also be used as a course text for undergraduate and masters students of computer science, computer engineering and electrical engineering.

Over the last ten years, the ARM architecture has become one of the most pervasive architectures in the world, with more than 2 billion ARM-based processors embedded in products ranging from cell phones to automotive braking systems. A world-wide community of ARM developers in semiconductor and product design companies includes software developers, system designers and hardware engineers. To date no book has directly addressed their need to develop the system and software for an ARM-based system. This text fills that gap. This book provides a comprehensive description of the operation of the ARM core from a developer's perspective with a clear emphasis on software. It demonstrates not only how to write efficient ARM software in C and assembly but also how to optimize code. Example code throughout the book can be integrated into commercial products or used as templates to enable quick creation of productive software. The book covers both the ARM and Thumb instruction sets, covers Intel's XScale Processors, outlines distinctions among the versions of the ARM architecture, demonstrates how to implement DSP algorithms, explains exception and interrupt handling, describes the cache technologies that surround the ARM cores as well as the most efficient memory management techniques. A final chapter looks forward to the future of the ARM architecture considering ARMv6, the latest change to the instruction set, which has been designed to improve the DSP and media processing capabilities of the architecture. * No other book describes the ARM core from a system and software perspective. * Author team combines extensive ARM software engineering experience with an in-depth knowledge of ARM developer needs. * Practical, executable code is fully explained in the book and available on the publisher's Website. * Includes a simple embedded operating system.

This second edition is not only a thorough update of the first edition, it is also a marriage of the best-known RISC architecture--MIPS--with the best-known open-source OS--Linux. The first part of the book begins with MIPS design principles and then describes the MIPS instruction set and programmers' resources. It uses the MIPS32 standard as a baseline (the 1st edition used the R3000) from which to compare all other versions of the architecture and assumes that MIPS64 is the main option. The second part is a significant change from the first edition. It provides concrete examples of operating system low level code, by using Linux as the example operating system. It describes how Linux is built on the foundations the MIPS hardware provides and summarizes the Linux application environment, describing the libraries, kernel device-drivers and CPU-specific code. It then digs deep into application code and library support, protection and memory management, interrupts in the Linux kernel and multiprocessor Linux. Sweetman has revised his best-selling MIPS bible for MIPS programmers, embedded systems designers, developers and programmers, who need an in-depth understanding of the MIPS architecture and specific guidance for writing software for MIPS-based systems, which are increasingly Linux-based. * Completely new material offers the best explanation available on how Linux runs on real hardware. * Provides a complete, updated and easy-to-use guide to the MIPS instruction set using the MIPS32 standard as the baseline architecture with the MIPS64 as the main option.* Retains the same engaging writing style that made the first edition so readable, reflecting the authors 20+ years experience in designing systems based on the MIPS architecture.