Canon imageRUNNER ADVANCE C3330 Series Troubleshooting Manual page 71

1) According to the location where the symptom occurred, check disconnection of the connector for an appropriate cassette from
among a) to d).
If no connector is disconnected, check other factors (disconnection of cable and unit etc.)
a) If "Load paper" is displayed to the cassette 1, check J1222 of the cassette 1 size switch.
b) If "Load paper" is displayed to the cassette 2, check J1221 of the cassette 2 size switch A.
c) If "Load paper" is displayed to the cassette 3
c-1) Check J1136 of the cassette 3 size switch A.
c-2) Check J603 of Deck driver PCB.
d) If "Load paper" is displayed to the cassette 4, check J1139 of the cassette 4 size switch A.
2) Start the main body and, please confirm that a phenomenon does not occur.
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