Features 1Transparent PP Material: With transparent cartridge, it is easy to view how much ink left to prevent from lack of ink to cause air bubbles or how much ink filled in to avoid overfill. 2Low Consumption & High Efficiency: Designed to be filled and refilled hundreds of times. Auto reset chips installed. The ink level will reset to full once you refill the cartridge. Refillable ink cartridge allow countless refill,save your printing cost. 3Universal Compatibility: Empty refillable ink cartridges,can be refilled all types of ink. Universally suitable for Canon ink cartridge Model PGI-850 CLI-851. 4User Friendly: Do not leak ink or drop ink. Built-in filter to prevent printhead clogged. 5Easy to Operate: It is very easy to remove the plug for ink refill and replace it back after. Specification This Empty refillable ink cartridge with ARC chip perfect for Canon printer. With transparent cartridge, it is easy to view how much ink left to prevent from lack of ink to cause air bubbles or how much ink filled in to avoid overfill for easy operation. There are easy-refill hole and rubber plug on the top of each cartridge. It is very easy to remove the plug for ink refill and replace it back after. Save both money and time for you. Features: Transparent PP Material: With transparent cartridge, it is easy to view how much ink left to prevent from lack of ink to cause air bubbles or how much ink filled in to avoid overfill. Low Consumption & High Efficiency: Designed to be filled and refilled hundreds of times. Auto reset chips installed. The ink level will reset to full once you refill the cartridge. Refillable ink cartridge allow countless refill,save your printing cost. Universal Compatibility: Empty refillable ink cartridges,can be refilled all types of ink. Universally suitable for Canon ink cartridge Model PGI-850 CLI-851. User Friendly: Do not leak ink or drop ink. Built-in filter to prevent printhead clogged. Easy to Operate: It is very easy to remove the plug for ink refill and replace it back after. Specifications: Cartridge Number: for Canon PGI-850 CLI-851 Applicable models: for Canon PIXMA MG5480, for Canon PIXMA MG6380, for Canon PIXMA MX728, for Canon PIXMA MX928, for Canon PIXMA IP7280 Type: Universal Color: PGBK, BK, C, M, Y Volume: BK, C, M, Y - 12.5ML PGBK - 24ML Package List: 1 * Black Empty Refillable Cartridge with Auto Reset Chip without Ink 1 * Cyan Empty Refillable Cartridge with Auto Reset Chip without Ink 1 * Yellow Empty Refillable Cartridge with Auto Reset Chip without Ink 1 * Magenta Empty Refillable Cartridge with Auto Reset Chip without Ink 1 * PGBK Empty Refillable Cartridge with Auto Reset Chip without Ink Installation Notes: 1. The nozzle protection clip should be removed before the ink cartridge is applied to the machine (for some products), the tail (air vent seal) on the nozzle of the cartridge must also be torn off. 2. When replacing a new cartridge, clean the printhead before the original cartridge runs out of ink. 3. After installing the cartridge, let the cartridge stay in the cartridge for 5 minutes. Clean the printhead until the nozzle check is normal. 4. If there is a disconnection or lack of color, let the cartridge stay in the cartridge for 10-15 minutes. 5. If the print problem persists, check the print head 1 - 3 times until it is unobstructed. 6. If the printer does not recognize the ink cartridge, remove the ink cartridge and reinstall it. If the printer still does not work, try restarting the printer. 7. After the cartridge is opened, it should be used within 6 months to ensure good printing results. 8. Do not remove the ink cartridge from the printer until the ink has run out. 9. The printer is turned on at least once a week to prevent the print head from clogging.