4. The image-forming system according to claim 3 , wherein, if said setting unit receives at least a setting item by the operator and if said display unit displays an updated input setting screen which is updated according to said setting item by the operator, said display unit displays a portion with emphasis, said portion in said updated input setting screen being different from a portion corresponding to said portion in an input setting screen prior to updating.
3. The image-forming system according to claim 2 , wherein, if a portion in said input setting screen, resulting from said input setting screen information generated by said input setting screen information generation unit, is different from that corresponding to said portion in an initial input setting screen, resulting from initial setting values, said display unit displays said portion with emphasis.