HP Smart Tank 7305 Ink Bottles
Your HP Smart Tank 7305 uses the 31, 31XL, and 32XL ink bottle series, featuring a continuous ink supply system with dedicated individual reservoirs for each colour. Our 4.8 Google Star rating shows that our customers consistently receive high-quality cartridges backed by reliable performance. Supplying premium ink refills for this high-volume printer since Jul 2025, we ensure your workspace remains productive. Because tank systems rely on large ink volumes to prevent air locks in the internal lines, heavy users typically replenish all four colours simultaneously via multi-packs rather than waiting for individual reservoirs to empty completely.
Page yield expectations and ink longevity
Refill ink bottles for this continuous ink system provide exceptionally long running cycles before needing replenishment. HP measures these enormous page yields under the international ISO/IEC 24712 pattern standard specifically established for continuous colour inkjet printing. This system is geared toward small businesses where printing costs must remain minimal over thousands of printed invoices, reports, or brochures.
| Cartridge Number | Type | Colour | Page Yield | Cost Per Page |
|---|---|---|---|---|
| 31 | Standard | Cyan | 8,000 | $0.003 |
| 31 | Standard | Magenta | 8,000 | $0.003 |
| 31 | Standard | Yellow | 8,000 | $0.003 |
| 32XL | High Yield | Black | 6,000 | $0.004 |
Cost Per Page = Total Cartridge Price ÷ Page Yield (at 5% coverage). Prices based on Genuine cartridges.
Choosing between genuine and compatible ink options
Using compatible options offers an incredible advantage for keeping running overheads to an absolute minimum. Under Australian Consumer Law, using compatible cartridges does not void your printer warranty. Every compatible ink bottle we stock is manufactured to stringent tolerances, ensuring smooth flow through the internal tubing. For an in-depth look at how these choices perform over time, you can read our comprehensive comparison guide on genuine vs compatible cartridges.
Stocking strategies and delivery logistics
If you manage a busy workgroup, buying bundled ink sets is the most reliable way to avoid uneven colour depletion during large print runs. If your compatible ink bottle fails to meet expectations, your purchase is completely covered by a full money-back guarantee. For details on how we handle items, please refer directly to our official Returns policy. Free delivery applies on all orders over $99 (conditions apply), with shipments leaving daily from our regional warehouse dispatch centres across Perth, Brisbane, Sydney, Melbourne, and Adelaide. Feel free to view our complete range of HP ink bottles online.
Pro Tip
When refilling the ink reservoirs, never squeeze the bottle forcefully as this can disrupt the spill-free gravity mechanism. Allow the fluid to drain naturally into the tank up to the maximum fill line, and seal the remaining ink tightly to prevent evaporation.
Frequently Asked Questions
Can I mix genuine HP ink bottles with compatible ink bottles in the same tank system?
Yes, you can safely use compatible ink bottles to top up a reservoir that still contains genuine factory ink. The formulations are chemically cross-compatible, meaning they blend together without causing blockages or clogs inside the internal fluid lines.
How do the page yields of 31 and 31XL series ink bottles differ for my printer?
The 31 and 31XL lines both offer identical high capacities of up to 8000 pages for cyan, magenta, and yellow. The variant numbering merely reflects regional product labelling variations across different distribution bundles, but the physical bottle and fluid volume remain uniform.
Why does my black ink tank drop faster than my colour tanks when running a small business office?
Small business environments print predominantly text-based office documents, invoices, and shipping labels, which consume the pigmented black ink from the 32XL reservoir far more rapidly than the colour inks, which are reserved for logos or highlights.
