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. This HP ink tube purging video guide shows you a quick, easy procedure to purge that air before it reaches your printheads.

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: Ink Tube Priming Tool with Flex Hose

Which Printers Does This Apply To?

This how-to purge HP tubes procedure applies to the T1600, T2600, T920, T930, T1500, T1530, T2500, T2530, and T3500. Shop parts for these plotters:

• HP Designjet T1600 & T2600 Parts

• HP Designjet T920, T1500 & T2500 Parts

• HP Designjet T930, T1530 & T3500 Parts

Frequently Asked Questions

Why does my HP Designjet say the cartridge is empty when it isn't?

A false empty-cartridge message is often caused by air in the ink tube system, not an actual empty cartridge. Purging the lines commonly resolves it.

Do I need a special tool to purge HP ink tubes?

Yes. The LPS ink tube priming tool pulls ink through the lines and can be reused indefinitely, unlike one-time-use setup printheads.

Need Help?

Not sure if air is your problem? Our team can help.

• Email: SALES@LPSCOMPUTER.COM

• Phone: 760-749-1580