Canon iR2030 Series Service Manual page 254

2) Open the left door until it sops and pull out the hinge shaft [1].
3) Lift the left door with both hands to release it from the door rotation shaft [1], and then remove the left door.
MEMO:
When a duplex unit is installed, remove it before pulling out the hinge shaft
for each access.
[1]
F-9-60
[1]
F-9-61