Why does the word Xerox not begin with zerox?

The Word "Xerox" does not begin with "zerox" because it is a brand name derived from the Greek Word "xerography," which means "dry writing." The "X" in Xerox is capitalized and pronounced as "Z," which reflects its unique branding and phonetic identity. Additionally, brand names often use distinctive spellings to differentiate themselves in the market. Thus, the spelling "Xerox" is intentional and integral to its identity.