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Roland RT-640 - Page 24

Roland RT-640
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Description
Ink Iines Ink Consumption
LIGHT CHOKE CL.
*1
Perform when printed colors are uneven because of
the settlement of ink components. The machine
rotates the pump while the chock valves are closed.
The amount of time required to complete ink
renewal by rotating the pump while the chock valves
are closed is shorter than that of Choke Cleaning.
Therefore, stress on the print head and dampers are
less compared to Choke Cleaning.
Light Choke Cleaning renews ink in the tubes almost
completely to resolve uneven colors.
8 ink lines 141.1 cc
REFRESH SUBTANK
Refresh sub tanks once every six months to refresh
ink in the sub tanks.
This operation is effective when uneven colors are
not resolved by Light Choke Cleaning.
8 ink lines 895.0 cc
CHOCK CL.
(Only in Service Mode)
Perform after replacing a damper. The machine
rotates the pump while the chock valves are closed.
It cleans up the ink components settled at the
bottom of dampers.
8 ink lines 91.8cc
The Amount of Ink Used for Cleaning
*1 “Light” means less stress on the print head,
not the ink consumption.
Procedure to resolve unstable colors
Shake the
ink pouch
gently
LIGHT
CHOCK CL.
REFRESH
SUBTANK
CHOCK
CL.
User Mode Service Mode
5. Cleaning Function
*This is for reference only.
Ink consumption varies by machine and varies depending on how many
colors you are using (4 colors or 8 colors).

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