Bigger 12-Pack Replacement for Acroprint ES700, Acroprint ES900 Time Clock Ribbon Cartridge, Acroprint 39-0121-000 Ribbon Used with Model 175 and ATT310, Black Ink

Precision Mold Bigger ribbon cartridge replacement for SEI TP-20 ribbon cartridges are made in precise specifications, allow for seamless and easy installation into your printer. Superior Security & Environmental Performance The ribbon is odorless, no harmful ingredient. The shell is made of ABS compound, can be reused and naturally degraded without polluting the environment. Installing Steps Step 1: Open the cover of the printer Step 2: Install the compatible ribbon cartridge Step 3: Tighten the screws Step 4: Adjust the gear according to the thickness of paper Step 5: Close the cover Notice 1. Some models look like almost the same (for example, 1600K3 and 1600K3H), but have thoroughly different structures and are NOT compatible for each other. 2. Make sure that the printer is turned off before changing the cartridge. 3. Please do not touch the white wire in the printer. If you have any question, please free feel to contact us. Our professional service team are willing to help you.