Epson EcoTank Ink Bottles – 103 series

Key-Lock Auto-Stop Nozzles Prevent Messy Refills.

The Epson 103 EcoTank Ink Bottle Series provides an economical, high-reliability printing solution designed specifically for everyday home and small-office EcoTank printers, including models such as the L1110, L3110, L3150, L3151, and L5190. Utilizing a 4-color dye-based ink formulation across Black (65.0 ml), Cyan (65.0 ml), Magenta (65.0 ml), and Yellow (65.0 ml), this series engineered for smooth color blending, crisp text reproduction, and vibrant photographic output across standard paper types.

Each bottle features key-lock auto-stop nozzles that align exclusively with their matching tank ports to deliver direct, spill-free refills without manual squeezing or risk of color mixing. Produced under rigorous ISO cleanroom conditions, genuine 103 series inks safeguard sensitive Micro Piezo printhead channels against clogging while delivering ultra-high yields—up to 4,500 crisp black pages and 7,500 rich color pages—to keep cost per page exceptionally low

Key Features

Key-Lock Auto-Stop Nozzles

Each color bottle features a unique keyed tip that pairs strictly with its corresponding color tank port. The bottle flow valve engages automatically upon insertion and seals cleanly upon removal to avoid color mix-ups, drips, and surface spills.

Ultra-High Page Yields

High-capacity 65ml ink bottles generate up to 4,500 crisp black pages and 7,500 rich color pages per complete set. Exceptional fluid efficiency dramatically lowers your overall cost per page and reduces bottle replacement frequency for daily printing.

4-Color All-Dye Formulation

Engineered with premium dye-based inks across Black, Cyan, Magenta, and Yellow to deliver smooth color gradients and clean text documents. Fast-absorbing dye chemistry ensures quick drying on standard paper stocks to prevent smudges and tracking lines.

Pressure-Balanced Refill Flow

Vented bottle housings equalize atmospheric pressure during transfer to keep ink pouring smoothly without manual bottle squeezing. Fluid transfer stops automatically as soon as the printer reservoir reaches capacity to stop accidental overfills.

Micro Piezo Printhead Protection

Formulated under strict ISO cleanroom standards to eliminate fine particulate contaminants and protect microscopic printhead nozzles. Balanced fluid viscosity ensures uninterrupted ink delivery across print passes to prolong hardware operational lifespan.