Konica Minolta AccurioPress C2070 Troubleshooting Manual page 183

3.3.1. Options cannot be recognized. System configuration
display without options
(1) Symptom
If replacing the option unit and the large connector is disconnected immediately after the main
power is off, the control board of the option unit may be damaged. If this occurs the operation
panel displays the system configuration without the faulty option.
(2) Solution
Last of all, disconnect the large connector when you detach the option unit. First of all,
connect the large connector when you attach the option unit.
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