Canon imagePRESS C800 Series, Troubleshooting Manual

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Chapter 1
1-47
1-2)Check for disconnection of the connectors J503[1], J505[2], J504[3] and J506[4] of the neat driver PCB[A]. If no connector is disconnected, check other factors
(disconnection of cable and boards etc.)
1-3) Mount the rear cover, connect the power supply inlet cable and the LAN cable, and mount the shunt cable.
2) Check for disconnection of the connectors of the upper/lower neat stack unit return roller lifting motors.
2-1)Lift the tray A[1] in the direction of arrow(1) up to the upper limit (where it stops).
2-2)Stick a screw driver or the like in the hole[A] while holding the tray B[2], release the roller[3] in the direction of arrow[B] and lower the tray B by 10cm from
the lower end of the neat stack unit (lower) cover[4].
2-3)Remove the 3 screws[2], release the 2 protrusions[3] and remove the neat stack unit (lower) cover[1].