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7 Remove the Drive unit from the Pump unit.
[Caution] When the Drive unit is removed, the springs on the Pump head (4 pieces)
are freed causing the internal parts (diaphragms) elongated. To avoid this, put the Drive
unit back to its place approximately within 60 minutes.
8 Attach the new Drive unit in reverse order.
4.8.7 Recovery pump2 pump head replacement
1 Perform “Ink drainage” to “Pressure relief”.
2 Turn off the power supply.
3 Perform “4.8.6 Recovery pump2 drive unit replacement procedure” and remove the drive
unit.
[Caution] When the drive unit is removed, the springs on the pump head (4 pieces)
are freed causing the internal parts (diaphragms) elongated.
To avoid this, put the drive unit back to its place approximately within 60 minutes.
4 Remove the fixing screws (2 positions) and remove the pump head.
[Example] The following figure below indicates the case of the circulation pump head
removal.
[Caution] Be careful not to lose the O-ring.
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