Canon BJ-W9000 Service Manual page 287

BJ-W9000
7.3.4 E1660/E1665/E1666/E1667
: A-C/C-S valve sensor error
E1670/E1675
: Y/ PC/ PM air valve sensor error
E1680/E1685
: C/ M/ K/ air valve sensor error
E16a0/E16a5/E16a6/E16a7
: Pump valve sensor error
Eb201
: A-C/C-S valve sensor error
Eb202
: Y/ PC/ PM air valve sensor error
Eb203
: C/ M/ K air valve sensor error
Eb204
: Pump valve sensor error
<Cause>
The A-C/C-S valve sensor did not detect the base position (sensor transmission)
within the predefined time period.
The Y/ PC/ PM air valve did not detect the base position (sensor transmission)
within the predefined time period.
The C/M/ K air valve sensor did not detect the base position (sensor transmission)
within the predefined time period.
The pump valve sensor did not detect the base position (sensor transmission) within
the predefined time period.
<Probable faulty component>
Sub tank unit, mech. controller, system controller.
<Action>
1. Visual inspection:
Visually check the sub tank unit for abnormal conditions, such as trapped/lodged
foreign matter.
2. Cable check:
Replace the cable if the cable check between the mech. controller and the sub
tank unit fails.
3. Replace the sub tank unit.
4. Replace the mech. controller.
5. Replace the system controller.
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Part 5: Maintenance