Epson C31C514452 Technical Reference Manual page 124

12. While you make sure the pin of the brake arm is in the groove on the inner side of the cam,
rotate the cam along with the surface of the platen frame in the direction indicated by the
arrow until it clicks into position.
13. Close the printer cover.
Note:
When closing the cover, push the middle of the printer indicated by the circle in the illustration below.
B-6 How to Install the Printer on a Wall with the WH-10
pin of brake arm
Rev. H