Bulk CISS Ink System Compatible with WF-7310 WF-7840 WF-7820 EC-C7000 WF-4834 WF-3820 WF-4830 WF-3823 WF-4820 No Chip 812XL 822XL

This bulk continuous ink supply system (CISS) is compatible with WF-7310, WF-7840, WF-7820, EC-C7000, WF-4834, WF-3820, WF-4830, WF-3823, and WF-4820 printers.It supports T812, T812XL, T822, and T822XL ink cartridges.The system is provided without chips and is designed to work with the printer’s existing cartridge chips.It includes separate tanks for black (K), cyan (C), magenta (M), and yellow (Y) inks.The CISS restores printer functionality using standard 4-color ink configuration. This is a non-OEM replacement part.Any trademarks or model numbers cited are used strictly to demonstrate compatibility.

• Model Compatibility: Fits WF-7310, WF-7840, WF-7820, EC-C7000, WF-4834, WF-3820, WF-4830, WF-3823, and WF-4820 printers as a direct replacement part.
• Part Type: Bulk CISS (Continuous Ink Supply System) replacement component designed for use with 812XL and 822XL ink cartridge configurations.
• Chip Status: No chip included; functions as a chipless replacement compatible with printers requiring non-chipped CISS components.
• Functionality: Restores continuous ink supply functionality without altering printer firmware, hardware design, or operational specifications.
• Installation Scope: Intended solely for integration into existing CISS setups on the listed printer models using 812XL or 822XL ink pathways.