Owners manual

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Reduce the resolution of bitmap images in your application software.

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Select a lower print quality in order to reduce the resolution of the printed image.

NOTE: If you are working under Mac OS X, not all of these options are available.

These options are suggested for troubleshooting purposes and may adversely affect the final output quality

or the time necessary to generate the print job. Therefore, they should be cancelled if they do not help to

solve the problem.

A PDF file is clipped or objects are missing

In older versions of Adobe Acrobat or Adobe Reader, large PDF files could be clipped or lose some objects

when printing with the HP-GL/2 driver at high resolution. In order to avoid such problems, update your Adobe

Acrobat or Adobe Reader software to the latest version. From version 7 onwards, these problems should be

solved.

The Image Diagnostics Print

The Image Diagnostics Print consists of patterns designed to highlight printhead reliability problems. It helps

you to check the performance of the printhead, and whether it suffers from clogging or other problems.

To print the Image Diagnostics Print:

1. Use the same paper type that you were using when you detected a problem.

2. Check that the selected paper type is the same as the paper type loaded into the printer. See View

information about the paper on page 58.

At the printer's front panel, press , then , then select Image Quality Maintenance > Print

diagnostic image

It takes about two minutes to print the Image Diagnostics Print.

The print is divided into two parts, both of which test printhead performance.

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Part 1 (top) consists of rectangles of pure colors, one for each ink. This part represents the print quality

that you will get from each color.

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Part 2 (bottom) consists of small dashes, one for each printhead nozzle. This part complements the

first, and aims more specifically to detect how many faulty nozzles each printhead has.

Please look carefully at the print. The names of the colors are shown above the rectangles and to the left of

the patterns of dashes.

170 Chapter 18 Troubleshooting print-quality issues ENWW