Printed circuit boards(PCBs) of the printer are composed of various organic and inorganic compounds as well as metals and alloys. This study was conducted to recover valuable metals from used PCBS by physical separation and leaching. The PCBs was crushed and magnetic constituents were removed by the magnetic separation. The non-magnetic constituents were then separated by 4.74, 1.70 and 0.425 nm sieves. Afterwards, metallic constituents of sizes between 0.425 and 1.7mm especially containing high quantity of Cu (e.g. 96% on metal base and 36.4% on total base) were used for the leaching experiment. The effect of the nature and concentration of acids and reaction temperature were investigated. The Cu leaching rate was up to 60% in nitric acid leaching while that was negligible in sulfuric and hydrochloric acids. It was found that highly sophisticated pretreatment is a prerequisite to enhance the leaching rate.