See the next sections for more specific problems:

•Meaningless characters print

•Ink is smearing

•Ink is not filling the text or graphics completely

•Output is faded or dull colored

•Colors are printing as black and white

•Wrong colors are printing

•Printout shows bleeding colors

•Colors do not line up properly

•Lines or dots are missing from text or graphics

Meaningless characters print

Check the cable connection

•A common cause for meaningless characters is a poor cable connection between the printer and computer. Make sure that the cable connection at both ends is good and that the cable is securely fastened.

•If you are using a USB cable and the problem persists after you have checked the connection, turn off the printer and disconnect the cable from the printer. Turn the printer back on without the connection in place. When the Power light is on and not flashing, reconnect the cable.

Check the document file

•Occasionally, a document file is damaged. If you can print other documents from the same application, try to print using a backup copy of your document, if available.

Cancel the job

•After an interruption has occurred to a job that is printing, the printer might not recognize the rest of the job. Cancel the current job and wait for the printer to return to the Ready state. If the printer does not return to the Ready state, cancel all job processes and wait again. When the printer returns to the Ready state, resend the job. If prompted at the computer to retry the job, click Cancel.

Ink is smearing

Check the print mode

•When you print documents that use a lot of ink, you must allow the document more time to dry before handling it. This is especially true for transparencies. Select Best mode in the printer driver, and increase the ink drying time from Advanced Features in the printer driver. Under Advanced Features is an Ink Volume slider that you can use in conjunction with drying time to decrease ink saturation. However, note that decreasing ink saturation might give printouts a “washed-out” quality.

•Color documents that have rich, blended colors can wrinkle or smear when printed using Best mode. Try using the Normal, Fast Normal, or Draft mode to reduce ink, or use HP Premium Paper designed for printing vivid color documents.

Check the media type

•Some types of media do not accept ink well, which causes the ink to dry more slowly and results in smearing. See Selecting print media.

52 Maintaining and troubleshooting

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HP 1000 manual Meaningless characters print
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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.
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