Chapter 3

To fix the problem, check the scanner as described in the following sections:

•Reset the scanner

•Test the scanner hardware

•Scanner has stopped working properly

Reset the scanner

If you receive an error message similar to “Scanner initialization failed” or “Scanner not found” when trying to use the scanner, use the following procedure:

1.Close the HP scanning software, if it is open.

2.Disconnect the cable that connects the scanner to the computer.

3.Reconnect the cable that connects the computer and the scanner.

•Make sure that you are using the USB cable that came with the scanner.

•Make sure that the USB cable is connected to the back of the scanner correctly. The USB symbol on the end of the cable (the connector) should be facing up. When connected correctly, the USB connector will feel slightly loose. When connected incorrectly, the USB plug will feel overly tight.

•Try connecting the USB cable to a different USB port on your computer. If the USB cable is connected to a port on the front of the computer, move it to a port on the back of the computer.

4.Turn the computer off, wait 60 seconds, and then turn the computer on again.

Test the scanner hardware

If you think that the scanner has a hardware problem, verify that the USB cable is firmly connected to the scanner and the computer. If the cable is correctly connected, test the scanner using the following procedure:

1.Disconnect the USB cable from the scanner.

2.Reconnect the USB cable to the scanner.

The carriage on the scanner will move forward and backward approximately 10 mm (0.39 inch).

If the carriage does not move, a problem might exist with the scanner hardware. Proceed with the next section.

Scanner has stopped working properly

If the scanner stops scanning, complete the following steps, in order. After each step, start a scan to see if the scanner is working. If the problem continues, proceed with the next step.

1.Ensure that the USB cable is securely connected.

2.Turn the scanner off by disconnecting the USB cable and then reconnecting it to the scanner and the computer.

3.Restart your computer.

4.Uninstall and then reinstall the scanner software.

If the scanner still does not work, visit www.hp.com/support or contact HP Customer Support. For more information, see Getting assistance.

20 Troubleshooting

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HP 200 manual Reset the scanner, Test the scanner hardware, Scanner has stopped working properly
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200 specifications

The HP 200 is a remarkable computer system that exemplifies the evolution of technology in personal computing. Launched in the early 1980s, this model marked a significant milestone for Hewlett-Packard in their efforts to cater to small businesses and professional users. The HP 200 was tailored for those seeking a reliable, efficient, and powerful computing tool.

One of the standout features of the HP 200 is its modular architecture. This design allows users to configure their system according to individual needs, enabling the addition of various peripherals and expansion cards. The expandability of the HP 200 made it an attractive option for businesses that required customization to support diverse tasks ranging from data processing to accounting.

The HP 200 is powered by a robust microprocessor, typically the Intel 8086 or similar, which offered substantial performance at the time. This processor architecture supported 16-bit computing, providing the necessary power to run complex applications and multitask effectively. Users appreciated the improved speed and efficiency, which facilitated productivity in business environments.

In terms of memory, the HP 200 supported a range of options, starting with standard configurations that could be further expanded based on user requirements. This adaptability in RAM enabled users to run larger software applications smoothly and manage larger data sets, crucial for business operations.

The operating system used in the HP 200 was often the HP-MOS, a proprietary system designed to leverage the hardware capabilities efficiently. This operating system provided a user-friendly interface, making it easy to navigate through tasks and applications. Its compatibility with various software applications enhanced productivity, allowing users to utilize industry-standard programs effectively.

To further augment its usability, the HP 200 was designed with a variety of connectivity options. These included serial and parallel ports, which facilitated communication with peripherals such as printers and modems. The inclusion of networking capabilities also allowed businesses to connect multiple HP 200 systems, creating a collaborative environment.

Another notable characteristic was its reliability and durability. The HP 200 was engineered with quality components, resulting in a machine that could withstand the rigors of daily business use over extended periods.

In summary, the HP 200 was a game-changer in the personal computing landscape, delivering exceptional performance and flexibility. Its combination of modular design, powerful processing capabilities, user-friendly operating system, and reliable build quality made it an essential tool for businesses during its time. The legacy of the HP 200 continues to influence modern computing systems, reminding users of the importance of adaptability and efficiency in technology.
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