Canon iPF9000S Troubleshooting Manual page 141

Turn the gear by hand to check the cap
moves up and down and that the wiper
Flow 1
blade moves forward and backward (*1)
*1 Sequence of checking the purge unit
for normal operation
①The cap moves down.
②The wiper blade moves forward
and backward.
③The cap moves up.
Turn the gear clockwise (toward a
triangular mark) by giving it 11.25 turns
to complete one cycle of operation.
Cap
Lip
Open the cap to locate air leaks.
Flow 2
Open the supply
valve
Ink drops
No ink drops
Tube lever
Flow 3
Fill the tube with air to check the behavior of the ink.
Pull out the carriage Open the tube lever
* Do not open the head
T14
lever.
Movable
Check the lip of the cap
Is the absorber in the cap elevated?
Wiper blade
Absorber
Air leak from the supply
unit
Normal
Flow 3
Head lever
Open the ink supply valve for about 2
seconds, observing the behavior of
the ink in the tube
Chapter 4 Fault Isolation Tool Collection
Not movable
Flawed
Not flawed
Yes
No
Direction of gear rotation
Replace the tube (for the iPF5000 Series, the tube is
integrated into the supply unit)
Leak from the joint unit (head joint, tube, supply unit)/replace
Possibly faulty head
4-21
Replace the purge unit
Replace the purge unit
Flow 2
Air leak isolation
Correct the elevation
Flow 2 Air leak isolation
Gear
Joint unit
Close the tube lever
Flow 4