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C7769-40041 HP Designjet 500 / 800 Purple Latch for Printhead Cover

C7769-40041 HP Designjet 500 / 800 Purple Latch for Printhead Cover

  • $ 1440

C7769-40041 HP Designjet 500 / 800 Printhead Cover | Purple Carriage Latch

C7769-40041, C7769-69376, C7769-60381, C7770-60286


If your machine is telling you "Open window and check printhead cover is properly closed," the most likely cause is the upper frame on the ink tube system is cracked or broken. The printhead cover on the carriage locks into the lower latch in the ink tube system. If the lower latch is compromised, the machine will not function. 

This latch is designed and manufactured exclusively by LPS. Includes lifetime warranty.

Watch the video tutorial for the repair procedure here.

If your ink tube system is leaking, or otherwise broken beyond repair, you can find the replacement ink tube systems here:

24" Ink Tube

42" Ink Tube

For use with HP Designjet 500, 510, 800 24" and 42" printers. 

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Customer Reviews

Based on 8 reviews
Gary Ogle
Desingjet 510 purple printhead latch

This replacement was much better than previous ones. I had problems due to "flash" left around the pins during the manufacturing process that made the latch too tight to pivot when installed, leading to pin breakage. I tried filing them down with the same result. The last 4 I bought are perfectly cast, and so far no issues with them.

David Hawkins
Replacement Purple Latch

The purple print heat had become brittle and was about snap. Replaced it with and LPS re engineered latch. It is a 3D printed version to the same right tolerance but far stronger. I cant believe the ingenuity of the LPS team. My DesignJet 500 is good to go for another 10 years.

William Bahder

Product and instructions in tutorials were perfect. We have 15 year old very reliable plotter (HP500)running like new.

Rita Stratford
Video and customer service excellent.

Had a problem with printer - watched the video - discovered the part needed - ordered the wrong one and called back to order - kind and helpful. Very grateful for the online assistance and the personal guidance.

Henry Glover

Part fit perfectly.