Epson T05A4 WorkForce Pro WF-C879R Yellow XL Ink Supply Unit 20,000 pages
Key Features
Brand:Epson
High yield
Vibrant color
Reliable output
Cost efficiency
Seamless integration
1 Year Warranty
Epson T05A4 WorkForce Pro WF-C879R Yellow XL Ink Supply Unit (20,000 Pages)
The Epson T05A4 Yellow XL Ink Supply Unit (part number C13T05A40N) is a high-capacity, professional-grade consumable designed for high-volume commercial and enterprise printing environments. Engineered for the Epson Replaceable Ink Pack System (RIPS), this genuine supply unit delivers an impressive yield of up to 20,000 pages, significantly lowering operational costs and maintenance frequency.
High-Yield Enterprise Efficiency
The T05A4 unit is built for demanding workplaces that require consistent, large-scale color production.
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- Massive Page Yield: Produces approximately 20,000 ISO-standard pages (at 5% coverage) from a single unit, which is roughly four times the output of standard cartridges.
- Operational Cost Savings: Ideal for facilities printing over 2,000 pages monthly, offering an estimated cost efficiency of approximately $0.01 per page.
- Maximized Uptime: The ultra-high capacity drastically reduces the frequency of ink replacements, allowing businesses to improve operational efficiency and minimize downtime.
Professional DURABrite Pro Pigment Ink
This ink supply unit features Epson’s advanced all-pigment chemistry, specifically optimized for professional office output.
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- Vibrant and Accurate Color: Formulated for exceptionally clear color printing with a 4.0 picoliter droplet size, ensuring sharp graphics and consistent color accuracy across extended print runs.
- Durability and Archival Quality: The DURABrite Pro pigment ink is water-resistant, smudge-proof, and fade-resistant, making it perfect for documents that need to withstand field use or long-term storage
- Plain Paper Optimization: The inks are specifically designed to penetrate firmly into the fibers of plain paper, protecting important documents from tampering and ensuring crisp results for daily reports and contracts.
Technical Specifications and Compatibility
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- Brand: Epson
- Part Numbers: T05A4 / C13T05A40N
- Ink Type: Pigment-based (DURABrite Ultra/Pro)
- Yield: ~20,000 pages
- Weight: Approximately 380 g
Compatible Printer Models:
This unit is designed exclusively for the following Epson WorkForce Pro technical series:
This unit is designed exclusively for the following Epson WorkForce Pro technical series:
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- WorkForce Pro WF-C879R / WF-C879RDWF
- WorkForce Pro WF-C878R / WF-C878RDWF
- Specific variants: WF-C879RDTWFC, WF-C879RD3TWFC, WF-C878RD3TWFC
Maintenance and Handling
- Secure Installation: Uses a secure locking mechanism and self-sealing connections to prevent leakage during replacement
- Replacement Protocol: For maximum efficiency, only remove an ink unit when you are ready to replace it. Leaving the unit removed for long periods can cause ink in the print head nozzles to dry out.
- Smart Monitoring: The unit is equipped with an IC chip that monitors ink consumption in real-time, allowing for proactive monitoring and usable even if removed and reinserted

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