opening and closing the pc

preparing the pc

Read the following items before attempting to upgrade or service the PC:

These procedures assume familiarity with the general terminology associated with personal computers and with the safety practices and regulatory compliance required for using and modifying electronic equipment.

Write down and save the system model and serial numbers, all installed options, and other information about the system. It will be easier to consult this information than to open up and examine the PC.

HP recommends that you use an antistatic wrist strap and a conductive foam pad when working on the system.

WARNING: Always disconnect the modem cord from the telephone system, and then disconnect the PC from the power source before removing the front and side panels of the PC. Failure to do so before you open the PC or do any procedures can result in personal injury or equipment damage.

before opening the pc

To avoid injury and equipment damage, always follow this procedure in this order before opening the PC:

1Remove any media from the drives.

2Turn off the PC and all peripherals.

3Disconnect the modem/telephone cable.

4Disconnect the power cord and all other attached cables (such as the keyboard, mouse, and monitor).

WARNING: Please read “safety information” in the beginning of this document before installing and connecting your system to the electrical power system.

after closing the pc

To avoid injury and equipment damage, always follow this procedure in this order after closing the PC:

1Reconnect the power cord and all other attached cables (such as the keyboard, mouse, and monitor).

2Reconnect the modem/telephone cable.

3Turn on the PC and all peripherals.

4If you installed an add-in card, install any software drivers supplied by the card manufacturer.

98user’s guide

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HP a307x, a300n manual Opening and closing the pc, Preparing the pc, Before opening the pc, After closing the pc

a307x, a300n specifications

The HP A302x, A300n, M400y (D7222P), M490n, and A307x series represents a diverse range of printing solutions tailored to meet the demands of various users, from small businesses to larger enterprises. These models showcase HP's commitment to innovative technology, quality output, and cost efficiency.

The HP A302x is designed for high-volume printing, offering fast print speeds and high-capacity toner options that reduce the frequency of cartridge replacements. It features HP's Precision Laser Technology, which ensures sharp text and vibrant images, making it an ideal choice for business reports and marketing materials. The model is equipped with wireless connectivity, allowing users to print from smartphones and tablets easily, enhancing overall convenience.

The A300n model is a versatile all-in-one printer that combines printing, scanning, copying, and faxing capabilities into one device. Its user-friendly interface and compact design make it perfect for a limited office space. The A300n supports mobile printing through HP’s Smart App, allowing users to easily manage printing tasks on the go. It also includes energy-efficient features like automatic duplex printing, which helps to save both paper and energy.

The M400y, identified by the model number D7222P, is engineered for efficiency and high-quality output. Its advanced security features protect sensitive data during printing, making it a suitable option for industries that prioritize confidentiality. The M400y offers reliable performance with a user-friendly control panel and customizable settings, enabling businesses to tailor their printing preferences for maximum productivity.

The M490n model excels at delivering outstanding print quality with minimal maintenance. Its robust design is coupled with a high print resolution capability that ensures every detail is captured with precision, whether printing professional documents or marketing visuals. The model also features fast processing speeds that cater to busy work environments where time is crucial.

Lastly, the A307x is another innovative addition to HP’s lineup, focusing on a seamless user experience. This printer is designed to integrate effortlessly into existing workflows, providing compatibility with a range of operating systems and devices. With features like an intuitive touchscreen interface and customizable print settings, the A307x ensures that users can easily navigate its functionalities and achieve optimal results.

Together, these HP models offer a comprehensive suite of features that cater to various printing needs, emphasizing quality, reliability, and user-friendly technology. Whether for small offices or large enterprises, the A302x, A300n, M400y (D7222P), M490n, and A307x are crafted to enhance productivity and deliver exceptional print results.