Epson SIDM Black Ribbon Cartridge for LX-350/LX-300

4 Million Characters of Flawless Impact Power.

The Epson SIDM Black Ribbon Cartridge (C13S015637 / S015637) is an authentic OEM dot matrix printing consumable engineered for heavy-duty, continuous-feed operations on Epson LX-350, LX-300, LX-300+, and LX-300+II 9-pin impact printers. Formulated with high-density, lubricated black ink infused into a durable continuous-loop woven nylon fabric ribbon, it yields up to 4 million characters while delivering exceptional text clarity across multi-part carbon forms, invoices, shipping waybills, and continuous statements. Its precision-molded cassette housing guarantees optimal ribbon tension and smooth tracking, preventing ribbon twist or jamming and actively shielding delicate printhead pins from friction and premature mechanical wear during demanding administrative and logistical workloads.

Key Features

High Character Yield Output

High-density ink formulation yields up to four million characters per cassette. Continuous ink delivery ensures crisp, high-contrast text throughput across heavy billing and administrative print schedules.

Multi-Part Form Clarity

Durable woven nylon ribbon transmits uniform pin impact across multi-copy carbon forms and invoices. Clean mechanical impression forces ensure sharp text legibility down to the final underlying copy.

Printhead Component Protection

Lubricating agents blended into the ribbon ink reduce continuous pin friction during rapid impact cycles. Constant pin lubrication suppresses heat accumulation and shields internal printhead mechanisms from premature wear.

High-Tension Woven Nylon

Continuous-loop fabric ribbon resists fraying and stretching under heavy mechanical tension. Uniform weave structure prevents ribbon jamming and maintains steady ribbon tracking during long print runs.

Exact Hardware Integration

Precision-molded cassette enclosure snaps directly into Epson LX-350 and LX-300 series 9-pin impact printers. Custom housing design guarantees seamless ribbon advancement and fast drop-in replacements.