his research aims to proof empirically that attitude and subjective norm influence the interest. This concept is practically due to Data Print refill ink c onsumer’s in Banjarmsin city. The reasoned action model was developed by Fishbein and Ajzen in 1980. Attitude was formed through the believe of DataPrintproduk marketing mix before buying and using the product which means firstabelevery body have believe t o the product before he/she buys it and then evaluate them due the process subjective norm was formed by other people references and motivation to follow other people which means some body ussually looking for information from another person beffore he/she decides to buy or use the product.