COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 NM-PDL REV.0 JULY 2001CHAPTER 4 DISASSEMBLY/ASSEMBLY4-42 Externals2.1 To Open the iR-M11. Make sure you have shut down the iR-M1 as described on page 4-3 and removed all thecables from the back.2. Remove the four screws on the back of the iR-M1 that secure the center frame (withmotherboard and devices attached) to the chassis cover (see F04-201-01).F04-201-01 Opening the iR-M1