Print quality troubleshooting

„If necessary, change the printable area in the software.

„If necessary, reduce the size of the image or document in your software application, so it fits between the margins

Another Possible Explanation

Some applications, such as Adobe Photoshop, Adobe Illustrator, and CorelDRAW, use an internal 16–bit coordinate system which means that they cannot handle an image of more than 32,768 pixels. If you try to print an image larger than this from these applications, the bottom of the image will be clipped. In this case, the only way to print the whole image is to reduce the resolution so that the whole image requires fewer than 32,768 pixels. The HP-GL/2 printer driver contains an option called Compatibility with 16–bit applications, which can be used to reduce the resolution of such images automatically. This option can be found option in the Advanced tab, under Document Options > Printer Features.

Some objects are missing from the printed image

Large quantities of data may be necessary to print a high-quality large- format print job, and in some specific workflow there may be issues that can lead to some objects missing from the output.

Corrective Action

„In the Advanced tab, select Document options, Printer features, and set Send job as bitmap to Enabled (HP-GL/2 driver only).

„In the Advanced tab, select Document options, Printer features, and set 16-bit App. Compatibility to Enabled.

„In the Advanced tab, select Document options, Printer features, and set Max. Application resolution to 300.

The above settings are mentioned for troubleshooting purposes and may adversely affect the final output quality or the time necessary to generate the print job. Therefore, they should be restored to their default values if they do not help to solve the problem.

When working under Mac OS, the above settings are not available. Instead, try reducing the resolution of bitmap images in the application software being used.

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

Print Quality Troubleshooting Wizard

Here we describe the main guidelines that a customer can follow to troubleshoot print quality and/or color issues, whenever a customer calls HP Support complaining about having any kind of printing quality problems or artifacts.

The Print Quality (PQ) troubleshooting Wizard is a set of processes and corrective actions that the customer can trigger in the printer whenever the print quality of the printer does not meet their expectations.

HP Designjet T Series — Service Manual

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