"用印刷体写" can be translated into English as "write in printed form" or "write in block letters" (when specifically referring to uppercase letters resembling printed text).
"Write in printed form" is a more general expression, suitable for contexts where the focus is on the neat, typed-like appearance of the handwriting.
"Write in block letters" is more specific, implying the use of uppercase (capital) letters that are clear and easy to read, often resembling printed text.
Choose the phrase that best fits your context.