Resetter Key ((link)): Epson M100

Unlike laser printers that use a toner cartridge and a drum, the Epson M100 uses an ink tank system and a piezoelectric print head. During cleaning cycles, printing, and power-ups, a small amount of ink is flushed through the print head to prevent clogging. This flushed ink doesn't disappear; it drains into a built-in —a thick, spongy absorbent material at the bottom of the printer.