Core ID, core OD and an unspecified core are three different statements

Use explicit inner and outer fields

The Epson TM-T20III reference gives spool inside12mm and outside18mm. A retail line that only says “1/2-inch core” is not an explicit statement of both values. Our screen requires both inputs and labels its limits.

Keep accessory descriptions intact

Star lists a TSP143IV paper accessory with a17mm core designation. The product page does not label that accessory field as ID or OD, so we do not rename it to make it directly equivalent to Epson’s two fields.

Get confirmation before a case order

Send the supplier the printer’s exact media requirements and ask for a written answer about the selected roll. A customer review for another model is not a dimensional specification or our test result.

Before you decide

• Record ID and OD separately
• Do not reinterpret unspecified core
• Confirm selected SKU