Oce VarioPrint 6000 series User Manual page 55

Use the D-wrench to turn K5 counter-clockwise.
5.
[70]
[70] Unlock the OPC unit
Use the red handle to move the OPC unit as far outward as possible.
6.
[71]
[71] Move the OPC unit out
K5
K4
K3
K1
K2
Clean the OPC belt (right)
55