HP Ink Tube Purging Video Guide: How to Remove Air From Designjet Ink Tubes

Is your HP Designjet printer saying a cartridge is empty when it isn't? Does it keep asking you to replace the printhead, or are you seeing poor print quality for no clear reason? These symptoms often share one root cause: air incursion into your ink tube system.

Why Purging Your HP Ink Tubes Matters

When air enters the ink tube system, it backs up into the printheads and causes ink starvation, leading to faded prints, false errors, and expensive burnouts. Knowing how to purge HP ink tubes protects both your printheads and your budget:

• Clears false error messages, like an empty-cartridge warning on a full cartridge.
• Stops repeated printhead-replacement prompts caused by air, not a bad head.
• Restores print quality when you see fading, banding, or dropouts.

How to Purge HP Ink Tubes

Our HP ink purging video guide walks you through the process using the LPS ink tube priming tool, which draws ink through each line to eliminate trapped air, guaranteeing air isn't sneaking into the printhead. The purge tool is available here:

Which Printers Does This Apply To?

This how-to purge HP tubes procedure applies to the following models:

T1600T2600T920T930T1500T1530T2500T2530T3500

Shop parts for these plotters:

Frequently Asked Questions