Epson

Epson T320 Standard Capacity Ink Cartridge - PictureMate PM-400

Name: Epson T320 Standard Capacity Ink Cartridge - PictureMate PM-400
Brand: Epson
SKU: T320

★★★★★4.7 (1328 reviews)

Delivers 1,000-print archival-grade photo output from the PictureMate PM-400 with fade-resistant water-based inks.

$36.29*

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*Price sourced from Amazon.com. Last updated:Jul 15, 2026.Price and availability are subject to change.

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Overview

The Epson T320 is an OEM ink cartridge engineered specifically for the PictureMate PM-400 photo printer, delivering a four-color CMYK ink set in a water-based archival formulation. The rated 1,000-print yield at standard 4x6 output provides a concrete cost-per-print baseline — approximately the same cartridge set cost per print as a commercial photo lab, without the turnaround time. Water-based inks are the dominant chemistry for consumer photo printing because they reproduce a wide color gamut with smooth tonal gradations, and the archival-safe formulation means the dye compounds are stabilized against UV degradation and oxidation. Print longevity under controlled storage conditions is measured in decades, not months, which matters for photos intended for albums or framed display.

The T320 is purpose-built for the PM-400 platform — Epson's nozzle arrays, ink delivery pressure, and color management profiles in the PM-400 driver are all calibrated around this specific ink chemistry. Using OEM cartridges in a dedicated photo printer like the PM-400 also preserves print head warranty coverage and reduces the risk of nozzle clogging that can accompany third-party inks with different viscosity profiles. For the user running occasional 4x6 print batches — family photos, event prints, portfolio reference prints — the T320 delivers consistent output without the variables introduced by aftermarket alternatives. Standard capacity is the right choice for moderate use; users who run the PM-400 in high-volume sessions should monitor yield and consider purchasing in combo packs to minimize per-cartridge overhead cost.

Key Features

Works-with the Epson P400 printer

Color ink cartridge includes 4 colors: black, cyan, magenta, and yellow

Beautiful and crisp prints that are scratch, smudge, water and fade resistant.

Fast drying matte prints

Prints brilliant lab quality photos

Specifications

Brand

Epson

Model

T320

Capacity

Standard

Cartridge Type

Ink

Color

Printer Compatibility

Epson PictureMate PM-400

Pros & Cons

👍 Pros

Rated 1,000-print yield provides a measurable baseline for cost-per-print calculations on 4x6 photo output.
Water-based archival ink formulation is designed for long-term fade resistance, extending the useful life of printed photos.
Full CMYK color set (black, cyan, magenta, yellow) covers the gamut required for accurate photo reproduction on the PM-400.
OEM formulation ensures compatibility with the PM-400's print head nozzle geometry and ink delivery system.

👎 Cons

Compatibility is limited to the PictureMate PM-400 and P400 — no crossover to other Epson printer lines.
Water-based ink requires brief drying time on glossy media before handling, making it more susceptible to smearing than pigment-based alternatives immediately post-print.
Standard capacity designation means yield is lower than high-capacity variants; high-volume users will replace cartridges more frequently.
Per-page cost may be higher than third-party compatible cartridges, though OEM ink guarantees nozzle compatibility and print head warranty compliance.

Frequently Asked Questions

Which specific printer models is the Epson T320 cartridge designed for?

The T320 is designed for the Epson PictureMate PM-400. Epson also notes compatibility with the P400 printer. Installing it in other Epson models is not supported and may result in recognition errors or improper ink delivery.

What is the rated page yield, and what conditions does that number reflect?

Epson rates the T320 at approximately 1,000 prints. This figure is based on standard 4x6 photo printing at default quality settings. Printing at higher quality settings, larger formats, or with more saturated image content will reduce yield below this number.

Are these inks archival-safe, and what does that mean for print longevity?

Yes. The T320 uses water-based inks formulated to resist fading over time. Archival-safe designation means prints stored under typical conditions (away from direct UV, humidity, and oxidizing environments) should retain color accuracy for decades. Actual longevity depends heavily on storage conditions and paper type.

Does the T320 come as individual color cartridges or as a combined pack?

The T320 is available as individual cartridges and as a combo pack containing black, cyan, magenta, and yellow. Buying individual colors allows replacement of only the depleted color, which can reduce waste if usage patterns skew toward specific colors.

What ink base does the T320 use, and does it affect drying time or smear resistance on glossy photo paper?

The T320 uses a water-based ink formulation. On glossy photo paper, water-based inks require a brief drying period after printing before handling — typically 30–60 seconds at standard room temperature — to avoid smearing. The ink is compatible with Epson-recommended glossy and matte photo papers.