HP Deskjet 1180c Ink Cartridges
Shop ink cartridges for your HP Deskjet 1180c, an A3 wide-format printer built for producing large spreadsheets, banners, and diagrams. It uses the HP 45 ink cartridge series. Ink Depot has been supplying reliable consumables for this printer since Jan 2001. Switching to compatible 45 (51645AA) cartridges significantly drops printing costs during large monochrome document runs. Our 4.8 Google rating reflects a long-standing track record of premium cartridge performance.
Expected Page Output and Print Yield
Page yields for HP 45 cartridges are calculated based on ISO/IEC 24711 standard testing methods at 5% coverage. High-volume monochrome printing will deplete ink faster during full-page wide-format document output.
| Cartridge Number | Type | Colour | Page Yield | Cost Per Page |
|---|---|---|---|---|
| 45 | Standard | Black | 883 | $0.15 |
Cost Per Page = Total Cartridge Price ÷ Page Yield (at 5% coverage). Prices based on Genuine cartridges.
Choosing Between Genuine and Compatible Options
Under Australian Consumer Law, using compatible cartridges does not void your printer warranty. Choosing compatible options helps lower routine printing expenses without compromising performance. To understand how third-party cartridges perform relative to original manufacturer cartridges, read our guide to compare genuine and compatible cartridges.
Selecting Cartridges for Your Workflow
If you print mainly text or large architectural plans, selecting compatible 45 (51645AA) cartridges provides substantial savings while delivering sharp lines. Our compatible cartridges are backed by a money back guarantee for complete peace of mind. If you print archival documents requiring exact original specs, original HP supplies remain available. View our full range of HP ink cartridges or check our returns policy for guarantee details. Free delivery applies on all orders over $99, shipped quickly from our Perth, Brisbane, Sydney, Melbourne and Adelaide warehouses.
Pro Tip
Store spare 45 (51645AA) ink cartridges sealed in an upright position at room temperature to prevent ink from settling or nozzle drying prior to installation.
Frequently Asked Questions
Will high-density CAD drawings or wide-format prints reduce the expected yield of 45 cartridges?
Yes. Page yield figures are measured at 5% page coverage. Printing dense line drawings, dark fill areas, or oversized A3 layouts covers significantly more surface area, which depletes the 45 (51645AA) cartridge sooner than standard A4 text pages.
Can I keep a spare 45 cartridge on hand without the ink drying out inside the container?
Yes, provided the cartridge remains sealed in its original protective packaging until you are ready to load it into the printer. Once unsealed, the integrated printhead nozzles on the 45 (51645AA) cartridge should be kept active with regular printing to avoid drying.
Why does the 45 cartridge include an integrated printhead mechanism?
The HP 45 (51645AA) design combines the ink reservoir and printhead nozzles into a single consumable unit. Every time you replace the cartridge, you install a brand-new printhead firing assembly, which maintains sharp text print clarity and eliminates long-term printhead wear.







