Hitachi UX Twin Nozzle Service Manual page 343

6.5.18 No ink suction from gutter
No ink suction
from gutter
Is the tube of recovery
line or exhaust line folded?
Or, is ink clogged?
No
Does MV3 (nozzle1) and
MV23 (nozzle2) operate?
Yes
Execute the "Recovery route
operation check". *1)
Is the problem
fixed?
No
Repair the ink fixing in recovery pump1(or 2).
回収ポンプ１(または２)の固着修復を行う
Is the problem
fixed?
Replace the recovery filter 1(or 2)
Is the problem
fixed?
No
Clean the gutter and gutter
base.
Is the problem
fixed?
No
Replace the recovery pump.
*1) Recovery route operation check:
This operation is the work for checking of the ink clogging in recovery route.
[Operation procedures]
(1) On "Solenoid v/p test" screen, press Pump1 "Operated" first, and then press "MV3" on <Nozzle1>.
Secondly press Pump2 "Operated", and then press "MV23" on <Nozzle2>.
(2) Sprinkle makeup on the gutters, and check if the makeup is suctioned.
Yes
Replace the tube or clean
the tube.
No
Is the problem
fixed?
No
Repair the ink fixing of
MV3 (nozzle1) and MV23
(nozzle2) replace it.
No Is the problem
fixed?
Yes
Yes
Yes
Yes
Resume the
operation
6-101
Yes
Yes