The right Epson 320 ink cartridge depends on what “320” refers to. Epson 320/T320 ink is for the PictureMate PM-400 photo printer. An Expression Home XP-320 instead uses 220 or 220XL cartridges, while a WorkForce 320 uses 125 or 124. The older Stylus Photo R320 uses the 48 series.
Check the full printer name on the machine before comparing packs. These are separate cartridge families, not interchangeable options. This guide covers the U.S. models and uses Epson’s compatibility information to separate them, then compares the relevant pack choices without assuming that a search result is a fit.
Match the printer before buying
| What you have | Correct U.S. ink family | Useful starting point |
|---|---|---|
| PictureMate PM-400 | 320/T320; 320P/T320P print pack | T320 if you already have paper; T320P for included 4 × 6 paper |
| Expression Home XP-320 | 220 or 220XL | T220120-BCS standard combo or T220XL-BCS mixed-capacity combo |
| WorkForce 320 | 125 standard; 124 moderate capacity | T125120-S black if black is the cartridge needed |
| Stylus Photo R320 | 48/T048 | Match the specific missing color in Epson’s ink finder |
The model prefix is essential. XP-320, WorkForce 320 and R320 are different printers. If your printer was purchased outside the United States, check the regional Epson support page and the installed cartridge code instead of treating this table as a worldwide compatibility promise.
For PictureMate PM-400: Epson 320/T320 cartridge
If you are replacing a cartridge actually labeled 320, the Epson PictureMate PM-400 ink page identifies T320 as the photo cartridge. The printer uses one combined cartridge containing black, cyan, magenta and yellow dye inks. It is not a four-cartridge office-printer set.
The cartridge-only option makes sense if you already have the appropriate photo paper or need to choose paper separately. Epson’s PM-400 specifications describe 4 × 6- and 5 × 7-inch printing and rate the replacement ink at approximately 100 4 × 6 photos. Treat that as a manufacturer yield estimate, not a promise for every mix of images, maintenance and print sizes.
The verified Amazon listing below is Epson T320 for PictureMate PM-400. Look for the actual model code and sealed Epson packaging; marketplace quantity fields should not override the manufacturer’s single-cartridge configuration.
As an Amazon Associate we earn from qualifying purchases.
For PictureMate PM-400 with paper: Epson T320P
The T320P PictureMate 400 Series Print Pack combines a photo ink cartridge with 100 sheets of 4 × 6-inch glossy photo paper. It is the more convenient package to compare when you need both consumables for a batch of small prints.
Choose between T320 and T320P by looking at the paper you will genuinely use. If you already have a supply of 4 × 6 paper, the bundle may simply add more stock to a shelf. If you mainly print 5 × 7 photos, the included 4 × 6 sheets do not cover that paper requirement.
Compare the delivered price of the cartridge-only offer plus your chosen paper with the delivered bundle price. Do not interpret the “P” suffix as a higher-capacity cartridge or a different printer family. Epson’s part-number guide distinguishes 320 ink from the 320P print pack.
For Expression Home XP-320: Epson 220 standard combo
The XP-320 ink finder lists the 220 family. The T220120-BCS combo contains separate standard-capacity black, cyan, magenta and yellow cartridges. It is a sensible pack to compare when several colors need replacing and your printing volume is modest.
Individual cartridges let you buy the color you need rather than automatically replacing every cartridge. Check the printer’s ink-level display first: if only black is low, compare a black cartridge with the full combo instead of treating a four-pack as the default purchase.
The ASIN below maps to the standard black-and-color combo and explicitly lists XP-320 compatibility. It is not Epson 320 photo ink and does not fit the WorkForce 320 simply because both printer names contain “320.”
For a text-heavy XP-320 workload: Epson T220XL-BCS
The T220XL-BCS combo pairs a high-capacity black cartridge with standard-capacity cyan, magenta and yellow. Read that description carefully: the pack is not four XL cartridges. It is worth comparing if you print more black text than color documents.
Epson’s XP-320 specification sheet gives ISO page estimates of 175 for standard black and 500 for XL black. Those figures provide a like-for-like starting point for comparing the black cartridges. Actual results depend on what you print and how the printer is used.
If color consumption is also high, check individual 220XL color options in the ink finder. Do not assume this mixed-capacity combo supplies them. Compare pack contents and expected use together rather than choosing solely from the largest number on the front of a listing.
For WorkForce 320: Epson 125 standard or 124 moderate
The WorkForce 320/323/325 Quick Guide specifies 125 standard-capacity and 124 moderate-capacity cartridges in black, cyan, magenta and yellow. “Moderate” is Epson’s terminology for the lighter-use option; do not relabel the 125 as an XL series.
For black replacement, the verified T125120-S listing below is a single Epson 125 black cartridge. If other colors need replacement, use the WorkForce 320 ink finder to identify the matching color or combo. A color-only three-pack does not contain black, so compare the actual list of cartridges before ordering.
Keep WorkForce 320 separate from newer WorkForce names and the XP-320. Broad “works with Epson” wording is insufficient: the exact printer should appear in the compatibility list.
For Stylus Photo R320: follow the 48 series
If the label says Stylus Photo R320, use Epson’s R320 ink page. It lists 48/T048 cartridges, including the light colors used by this photo-printing system. Neither the T320 PictureMate cartridge nor a 220 combo is the right purchase.
Check each required color carefully. Light magenta and magenta are distinct cartridges, and a five-color pack may exclude black. Use the full color and part number from Epson’s selector when checking a retailer’s pack.
How to compare value without wasting ink
- Count the useful cartridges. A low price per cartridge means little if the pack includes colors you will not use or the wrong family.
- Compare matching yield figures. Document page estimates and photo yields describe different printing tasks and should not be directly ranked.
- Check condition and seals. Review the seller, package condition, printed dates and return policy before opening the box.
- Buy for a realistic workload. A large multipack is not automatically good value for a printer that rarely gets used.
- Check compatibility before troubleshooting. If a new cartridge is rejected, recheck the full code and follow the model’s manual rather than forcing it into place.
For third-party cartridges, seek explicit compatibility with the exact printer and a clear seller return policy. This guide has not verified a third-party cartridge’s chip compatibility, ink formulation or performance, so none is presented as an equivalent tested replacement.
Bottom line
Buy T320 or T320P for a PictureMate PM-400, 220/220XL for an XP-320, 125/124 for a WorkForce 320, and 48/T048 for a Stylus Photo R320. Once the model is matched, choose the smallest suitable cartridge or pack for the colors and paper you actually need.
Image note: AI-generated editorial illustration of generic items; not a photograph of a named or recommended product.
