Based on this product's specifications, here are some alternatives and similar models
Thermal transfer ribbon LAMBDA Epson ERC 30 compatible L-ERC30C, black, designed for up to 3 million characters
Summary description:
Thermal transfer ribbon LAMBDA compatible with Epson ERC 30 (model L-ERC30C) in black. Intended for receipt and point-of-sale printers that accept ERC 30 ribbons. Provides a long print yield specified at 3 million characters, suitable for continuous receipt printing, retail transactions, and POS systems requiring durable monochrome prints. Replacement ribbon for maintenance and stock replenishment.