Service Calibrations

2To calibrate the Service Station, run the Service Station diagnostic test. See 8. Service Station on page 3-42.

Paper Advance Calibration

The purpose of this Service Calibration is to calibrate the nominal advance of the media. This calibration is necessary to control the exact movement of the media in order to avoid print quality problems like banding.

If you need to perform a Paper Advance Calibration to solve a print quality problem, it is recommended that you first try the Paper Advance Calibration from the user´s menu, which will calibrate the printer to a specific paper type.

In order to perform the Paper Advance Calibration, you must order the Paper Advance Calibration Kit, which contains two sheets of HP Universal Instant-Dry Photo Gloss paper.

24inch Q6683-60241

44inch Q6687-60093

Perform the Service Accuracy Calibration whenever:

„Banding is detected in prints.

Service calibrations also need to be performed after removing or replacing certain printer components. If you have removed or replaced printer components, check the Service Calibration Guide to Removal and Installation on page 6-5 to see which tests and calibrations you need to perform.

The Paper Advance Calibration is split into two parts and should always be done in this order:

1Print Calibration Pattern - The Printer first calibrates the Analog Encoder and then prints the Paper Advance Calibration pattern.

2Scan Calibration Pattern - The Printer scans the Paper Advance Calibration pattern in order to calibrate the nominal advance of the media.

Only scan the Calibration Pattern in the Printer that was used to actually print it. Using the Calibration in a different Printer could cause it to experience media advance problems. After scanning the Calibration Pattern, it should be discarded.

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HP Designjet T Series — Service Manual