Epson T05A4 WorkForce Pro WF-C879R Yellow XL Ink Supply Unit – 20,000 Pages (C13T05A40N)

The Epson T05A4 WorkForce Pro WF-C879R Yellow XL Ink Supply Unit (C13T05A40N) is a genuine high-capacity ink pack designed for business-grade printing in Epson WorkForce Pro RIPS printers. Built with DURABrite Ultra pigment ink, this yellow ink unit delivers up to 20,000 pages of vibrant, long-lasting color output with excellent resistance to water, smudging, and fading. Ideal for high-volume office environments, it minimizes interruptions, reduces printing costs, and ensures consistent performance while supporting Epson’s eco-efficient Replaceable Ink Pack System.

Product Features

High Page Yield for Heavy Workloads

Print up to 20,000 pages at standard 5% coverage, making it ideal for offices that require continuous, high-volume color printing with fewer replacements.

DURABrite Ultra Pigment Ink Quality

Produces sharp, vivid yellow prints that are resistant to water, smudging, and fading, ensuring professional-quality documents every time.

Optimized for RIPS Technology

Designed for Epson’s Replaceable Ink Pack System, allowing for longer print runs, reduced maintenance, and fewer user interventions.

PrecisionCore Printhead Compatibility

Engineered to work seamlessly with PrecisionCore technology, delivering high-resolution output up to 2400 x 1200 dpi with accurate color consistency.

Smart Chip Monitoring System

Equipped with an integrated chip that enables real-time ink level tracking and proactive maintenance for uninterrupted workflow.

Easy, Tool-Free Installation

Features a secure-lock design that allows quick and clean replacement without tools, reducing downtime in busy office environments.

Eco-Friendly and Space-Saving Design

Compact and lightweight ink pack reduces packaging waste and supports environmentally responsible printing practices.

Product Specifications

• Ink Colour: Yellow
• Ink Type: DURABrite Ultra pigment-based ink
• Page Yield: Approximately 20,000 pages (ISO/IEC 24711 at 5% coverage)
• Ink Capacity: 182.5 ml
• Product Code: C13T05A40N
• Model Number: T05A4
• Compatibility: Epson WorkForce Pro WF-C878R and WF-C879R series printers
• Print Resolution Support: Up to 2400 x 1200 dpi
• Droplet Size: Minimum 4.0 picoliters
• Ink Particle Size: Approximately 3.0 µm
• Viscosity: 10.5 cP at 25°C
• pH Level: 7.7 to 8.3
• Drying Time: Approximately 2.2 seconds on plain paper
• Dimensions: Approximately 185 mm x 95 mm x 65 mm
• Weight: Approximately 380 g to 420 g
• Reservoir System: Pressurized ink delivery with precision flow control valves
• Shelf Life: Up to 36 months unopened
• Recommended Usage Window: Within 6 months after installation
• Operating Temperature Range: 10°C to 40°C
• Storage Temperature Range: -10°C to 50°C
• Humidity Range: 15% to 85% RH
• Packaging: Compact sealed unit designed to reduce shipping footprint