8473.21.00.00 - Of the electronic calculating machines of subheading 8470.10, 8470.21 or 8470.29

This HTS category, 8473.21.00.00, specifically covers parts and accessories designed for use with electronic calculating machines falling under HTS subheadings 8470.10, 8470.21, or 8470.29. These electronic calculators are characterized by their integrated printing mechanisms. Therefore, the items classified here are components or accessories that are exclusively or primarily intended for the functioning, maintenance, or repair of these specific printing electronic calculators. Examples might include specialized print heads, ink ribbons or cartridges designed for these machines, or unique control boards that govern their printing functions.

This classification is distinct from its sibling category, 8473.29.00.00, which is designated for "Other" parts and accessories of machines of heading 8470. While 8473.21.00.00 is highly specific to printing electronic calculators, the "Other" category would encompass parts for electronic calculators that do not have an integrated printing function, or for mechanical calculators of heading 8470.

As this is a leaf node within the HTS structure, there are no further subcategories for this specific code. The classification is complete at this level, meaning that any part or accessory fitting the description and intended for the specified printing electronic calculators would be classified here.