Canon GI-43 GY Gray Ink Bottle for PIXMA MegaTank Printers

Canon GI-43 GY Gray Ink Bottle – Genuine Refill for PIXMA G540 and G640 MegaTank Printers

The Canon GI-43 GY Gray ink bottle is a genuine consumable for the Canon PIXMA G540 and G640 MegaTank refillable inkjet printers. As part of the six-color GI-43 ink system (BK, C, M, Y, R, GY), the gray ink plays a key role in producing smooth tonal transitions and fine detail in black-and-white photos and monochrome documents. The gray channel extends the tonal range of the printer beyond what a standard four-color system can achieve.

Canon GI-43 GY Gray Ink – Role in the 6-Color System

The Canon GI-43 GY Gray ink bottle is unique to photo-grade MegaTank models that use a six-color system. The addition of gray ink alongside the standard BK, C, M, Y, and R inks allows the G540 and G640 to produce smoother gradients in neutral tones, reducing color casts and improving the appearance of grayscale photo prints. This makes the GI-43 GY an important consumable for users printing high-quality black-and-white photos from a MegaTank printer.

Canon GI-43 GY Gray – Yield and Design

Official Canon PIXMA G540 and G640 specifications list a black ink yield of approximately 3,700 A4 pages and a colour set yield of approximately 8,000 A4 pages (estimated supplemental yield). Actual yield for the GI-43 GY gray bottle depends on the proportion of gray used in the print content and specific printing conditions. The GI-43 GY bottle features Canon’s key-type nozzle, shaped specifically for the gray tank port to prevent cross-contamination with other ink colors during refilling.

Compatibility – Canon GI-43 GY Gray Ink Bottle

The Canon GI-43 GY Gray ink bottle is compatible with the Canon PIXMA G540 and Canon PIXMA G640 MegaTank printers. These are the only Canon MegaTank models that use the full six-color GI-43 ink set. Always confirm your printer model before ordering. Using genuine Canon GI-43 GY ink maintains photo print quality and supports your printer warranty.