HP DesignJet T770 Ink Cartridges
Shop ink cartridges for your HP DesignJet T770, which uses the HP 72 and 72B ink cartridges series along with C9380A/C9383A-C9384A print heads. Ink Depot has been supplying reliable consumables for this printer since Aug 2012. As demonstrated by our 4.8 Google rating, we are committed to providing premium consumable cartridges. The HP DesignJet T770 is a large-format technical printer designed for precise CAD line drawings and high-detail GIS renders. CAD draft printing exhausts Matte Black 72B (3WX06A) rapidly, while photo and graphic renders draw heavily on Photo Black 72B (3WX08A) and Cyan 72 (C9371A) inks.
Expected ink usage and page coverage
Page coverage for large-format printing varies significantly between CAD line vector files and full-colour graphic renders. HP calculates standard cartridge output using ISO/IEC 24711 guidelines, though architectural drawings typically consume less ink per square metre than solid photographic fills.
DesignJet Printhead Components
The HP DesignJet T770 relies on a long-life printhead system separate from individual ink channels. Replacing the C9380A/C9383A-C9384A printhead restores drop accuracy and sharp line definition across technical plans. Experience Tip: The C9380A/C9383A-C9384A printhead assembly outlasts several standard ink cartridge cycles under normal CAD workload conditions.
Selecting ink sets and Australian delivery options
For monochrome CAD line drawings, stock up on Matte Black 72B (3WX06A) cartridges to maintain workflow continuity. If producing renders or GIS maps, ensure balanced stocks of Photo Black 72B (3WX08A) and Cyan 72 (C9371A). Multi-cartridge bundles reduce order frequency for high-volume plotting studios. Review our returns policy for order support. We dispatch directly from distribution hubs in Sydney, Melbourne, Brisbane, Adelaide, and Perth. Free delivery applies on all orders over $99. Browse our complete range of HP ink cartridges today.
Pro Tip
Keep a spare Matte Black 72B (3WX06A) ink cartridge on hand, as large-format printers pause plot runs immediately when matte black is exhausted to prevent air line exposure in the ink delivery tubes.
Frequently Asked Questions
What is the functional difference between 72B Matte Black and 72B Photo Black ink cartridges?
Matte Black 72B (3WX06A) uses pigment-based ink designed to bond with bond paper for sharp line quality in CAD plans. Photo Black 72B (3WX08A) uses dye-based ink formulated for glossy or semi-gloss media to produce smooth tonal transitions without bronze surface flare.
Do I need to replace the C9380A/C9383A-C9384A printhead every time I change an ink cartridge?
No, the printhead is a long-life component independent of ink cartridges. It only needs replacement when line alignment or nozzle diagnostic checks show permanent firing errors that cleaning cycles cannot clear.
Can standard HP 72 and high-capacity HP 72B cartridges be used in the same printer simultaneously?
Yes, the HP DesignJet T770 accepts mixed setups of 72 (C9371A) and 72B (3WX06A) cartridges in any combination across the individual colour slots.
