What is the conclusion of this case

QUESTION Zack wanted to buy a high-density multi-function printer for his office which can be used not only for printing but also for photocopying, scanning, and faxing. He went to Copycat Supplier Co (CSC) to look for a printer as he usually buys electric goods for his office from CSC. He told the seller at CSC that he needs a multi-function printer as his office work requires a lot of scanning and printing of documents. The seller recommended the printer from 'Kopitiru' brand as the printer is a hot selling item. Zack trusted the recommendation from CSC and bought 3 units of the Kopitiru printer. However, after buying the printers, Zack discovered that the printers could not be used for scanning. Zack wants to reject the printers because he could not use the printers for his work as what he required. But CSC refused to allow him to return the printers as the printers were not faulty and can still be used. Advise Zack based on the Sale of Goods Act 1957 and relevant cases. I (20 marks)