Canon iR2020 Series Service Manual page 317

Operation key test (2) correspondence diagram
The flow of operation panel testing is shown below.
[L] [M][Q] [O][R] [N][S]
[A] [B] [C]
F-14-17
[5] [4] [0] [3]
[9]
[7]
[8]
[6]
F-14-18
Similar to the LCD display
[T] [U][P] [K]
[D] [E] [F] [J]
[1] [2]
01: [A] 11: [K]
02: [B] 12: [L]
03: [C] 13: [M]
04: [D] 14: [N]
05: [E] 15: [O]
06: [F] 16: [P]
07: [G] 17: [Q]
08: [H] 18: [R]
09: [I] 19: [S]
10: [J] 20: [T]
Chapter 14
[H] [G]
[I]
14-41