4 Maintaining and troubleshooting

This section provides information about maintaining the printer and troubleshooting common printer problems, such as paper jams and poor quality printing.

If you know you need to replace an ink cartridge or printhead, or clean the printheads, see Maintaining ink cartridges and printheads.

If you know that the colors do not appear as they should, see Calibrating color.

If you need to clear a jam, see Clearing jams.

If you have any other usage problem, see Starting troubleshooting.

If you had trouble installing the printer, see Troubleshooting installation issues.

Maintaining ink cartridges and printheads

The ink cartridges should not require maintenance except for replacing them when the ink runs out. The printheads require very little maintenance.

Replacing ink cartridges

CAUTION: The ink in HP ink cartridges has been formulated to ensure superior print quality and compatibility with your printer. Damage to the printer that results from modifying or refilling the ink cartridges, or from using non-HP ink cartridges, is not covered under the warranty.

You do not have to replace all four ink cartridges when one runs out. Only replace the ink cartridge for the color that is low or out.

You can check the ink levels from the Toolbox. You can also check the printer control panel to see if an ink cartridge is low, as shown here.

The ink cartridge is low on ink when the Ink Cartridge light blinks, and one or more of the color indicator lights is on.

You can press the

(resume button) to continue

printing.

 

The ink cartridge is out of ink when the Ink Cartridge light, one or more of the color indicator lights, and the Resume light are on.

You must replace the ink cartridge to continue printing.and Maintaining troubleshooting

Maintaining ink cartridges and printheads 35

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HP 1000 manual Maintaining and troubleshooting, Maintaining ink cartridges and printheads, Replacing ink cartridges

1000 specifications

The HP 1000 was a series of minicomputers produced by Hewlett-Packard from the early 1970s through the late 1980s. Originally introduced in 1973, the HP 1000 aimed to provide high-performance computing capabilities within the reach of small to medium-sized businesses and specialized industries. This machine was distinctive not only for its advanced technology but also for the versatility it offered in various applications.

One of the standout features of the HP 1000 was its architecture. The system utilized a 16-bit word size, which allowed for efficient processing and execution of instructions. The HP 1000 employed a unique architecture known as the "Hewlett-Packard 1000 Microprogrammed System," which enabled it to execute a broad range of instructions efficiently. This made the HP 1000 particularly well-suited for data processing applications, scientific calculations, and high-level computing tasks.

The HP 1000 series was fully modular, allowing users to customize and expand their systems as needed. It supported various input/output devices, memory sizes, and even offered options for solid-state disk drives, which were cutting-edge for that time. The system’s modularity not only provided flexibility but also enhanced maintainability, enabling users to swap out components without significant downtime.

Another key aspect of the HP 1000 was its support for a wide range of programming languages, including FORTRAN, COBOL, and BASIC. This made it appealing to a variety of users, from engineers who needed to perform complex calculations to business analysts focused on data management. Additionally, the HP 1000 was designed to run multiple jobs simultaneously, making it a precursor to modern multitasking operating systems.

Networking capabilities were also an essential characteristic of the HP 1000. The system could be connected to various peripherals and terminals, increasing its functionality in a networked environment. This helped businesses leverage the power of shared resources, facilitating collaborative projects and data sharing across departments.

In conclusion, the HP 1000 series played a significant role in the evolution of computing technology. Its modular design, robust architecture, support for multiple programming languages, and networking capabilities made it a versatile tool for a wide range of applications. For over a decade, the HP 1000 series marked an important chapter in the history of computing, laying the groundwork for advancements in minicomputer technology that would follow.