Ink Supplies Troubleshooting

The printer will start checking and preparing the printheads. The default routine process, when all printheads are changed, takes 25 minutes. If the printer finds problems in preparing the printheads, it will take longer, up to 55 minutes. For a single printhead insertion, the times vary between 15 and 35 minutes. After all printheads are checked and prepared, for the printhead realignment.

Aligning Printheads

Precise alignment between printheads is essential for accurate colors, smooth color transitions, and sharp edges in graphical elements. Your printer has an automatic printhead alignment process which runs whenever a printhead has been accessed or replaced.

In cases where the paper has jammed, you have used a custom paper, or are experiencing problems with color accuracy you may need to align the printheads. If the paper has jammed, it is recommended that you reinsert the printheads and initiate the realignment procedure with the Image Quality

Maintenance menu.

Do not use transparent and semi-transparent paper to align the printheads. Photo paper is recommended for the best quality.

Reinsert Printheads Procedure

1If the realignment process is running and the wrong paper is loaded, press the cancel key on the front panel. Do not print if the realignment process has been canceled. You can restart the alignment with the Image Quality Maintenance menu procedure.

2Load the paper you wish to use,. You can use a roll or cut sheet, however, it must be A3 landscape or larger.

3Remove and re-insert all the printheads, see Remove a printhead and Insert a printhead. This will start the printhead alignment procedure.

4Ensure the transparent window closed, as a strong light source near the printer during printhead realignment can affect alignment.

5The process will take about six minutes. Wait until the front panel display shows the process complete before using the printer.

Image Quality Maintenance Procedure

1Load the paper you wish to use. You can use a roll or cut sheet, however, it must be A3 landscape or larger (420 by 297 mm). Do not use transparent and semi-transparent paper to align the printheads. Photo paper is recommended for the best results; plain, bond and thin coated papers provide acceptable but marginal results.

2Press the Menu key to return to the main menu and select the Image Quality Maintenance menu icon.

3Select Align printheads. The printer will check to see if it has enough paper to run the realignment.

4If the loaded paper is satisfactory, the printer will run the realignment and print a realignment pattern. Ensure the transparent window is closed, as a

HP Designjet T Series — Service Manual

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