- 6 -5. TO OPEN THE UPPER CASE1. Open the printer cover. Then, remove theribbon cover from the machine.2. Remove the 2 screws of the upper case.3. Push the 3 dots marking point at the rightside of lower case. At the same time, slidethe upper case to the front side.4. Open upper cese from the left side.Remove the 2 screws.Open the printer cover.Slide the upper caseto the front side.Remove the ribbon cover.Power switch coverPress the 3 dots marking point.