Canon GI-70 PGBK INK Bottle is the Pigment Black ink component of the GI-70 ink system, designed for Canon's high-end PIXMA MegaTank (Ink Tank) printers focused on high-volume printing and durable documents.
 
PGBK (Pigment-Based). This formulation is used specifically for black text and lines, providing crisp, sharp, laser-quality text that is highly water-resistant and smudge-resistant on plain paper.
Used in Canon PIXMA G-Series MegaTank printers that use the GI-70 ink set, typically including models like the G5070, G6070, and GM2070.