Epson WorkForce 320 325 Ink Cartridges
Shop ink cartridges for your Epson WorkForce 320 and 325 printers, which use the Epson 133 ink cartridges series. Designed for daily small office document workflows, upgrading from standard C13T133192 black cartridges to high-yield C13T138192 options significantly lowers cost per page. Our 4.8 Google rating reflects a long-standing track record of premium cartridge performance.
Expected Page Output and Cartridge Yields
Standard 133 series cartridges yield up to 230 black and 305 colour pages, while 138 high-yield cartridges produce up to 380 black and 420 colour pages. Declared page yields follow ISO/IEC 24711 standards for inkjet printing under uniform test conditions.
| Cartridge Number | Type | Colour | Page Yield | Cost Per Page |
|---|---|---|---|---|
| 133 | Standard | Black | 230 | $0.034 |
| 133 | Standard | Cyan | 305 | $0.022 |
| 133 | Standard | Magenta | 305 | $0.022 |
| 133 | Standard | Yellow | 305 | $0.022 |
| 138 | High Yield | Black | 380 | $0.035 |
| 138 | High Yield | Cyan | 420 | $0.032 |
| 138 | High Yield | Magenta | 420 | $0.032 |
| 138 | High Yield | Yellow | 420 | $0.032 |
Cost Per Page = Total Cartridge Price ÷ Page Yield (at 5% coverage). Prices based on Compatible cartridges.
Compatible Ink Cartridge Reliability
Our premium compatible 133 and 138 cartridges deliver reliable print clarity at a fraction of standard costs. Under Australian Consumer Law, using compatible cartridges does not void your printer warranty. Every cartridge is manufactured to strict quality standards to match standard output, and you can learn more by reading our genuine vs compatible cartridge guide.
Choosing the Right Ink for Your WorkForce Printer
If you print mainly text documents, choose 138 high-yield black cartridges to extend replacement intervals. If you print colour charts or graphics, high-yield cyan, magenta, and yellow cartridges keep print costs low. Multi-packs offer the best value for stocking up. All compatible cartridges are backed by a money-back guarantee for peace of mind. Orders ship fast from our warehouses in Perth, Brisbane, Sydney, Melbourne, and Adelaide. Free delivery applies on all orders over $99. Explore our full range of Epson ink cartridges or check our returns policy for details.
Pro Tip for WorkForce 320 & 325 Owners
When replacing depleted colours, install 138 high-yield cartridges across all four slots rather than mixing 133 standard and 138 high-yield cartridges. Balanced ink capacities ensure even depletion across CMYK sets, reducing how often you need to open individual replacement packs.
Frequently Asked Questions
Do the Epson WorkForce 320 and 325 use the same ink cartridges?
Yes. Both the WorkForce 320 and WorkForce 325 belong to the same printer series and use identical 133 standard and 138 high-yield ink cartridges.
Can I install a 138 high-yield cartridge alongside standard 133 cartridges?
Yes, 133 and 138 cartridges share identical physical dimensions and fit into the same printhead slots. You can mix standard and high-yield cartridges in the same printer without issue.
Why does my printer report low ink on colour cartridges when printing mainly black text?
Epson printers utilise small amounts of colour ink during automated printhead maintenance routines to prevent nozzle clogging. This ensures print clarity remains consistent, even when running mono-only print jobs.
What happens if one colour cartridge runs completely empty?
The WorkForce 320 and 325 require all four ink slots (Black, Cyan, Magenta, Yellow) to contain functioning cartridges to operate. If any single cartridge reads completely empty, printing pauses until a replacement is installed.
