Specifications

Operation Principle
2-9
Flow of the ink supply control
The ink supply control flow can be divided as the followings.
 Error check of a cartridge
The error check of a cartridge is executed periodically (every 30 ms) to select a supply cartridge
according to an error state and ink residual quantity.
The supply cartridge notifies being under control with lighting the control LED (Green).
The error cartridge lights/blink the error LED (Red) to urge replacement of cartridges.
A valve of the cartridge indicated by lighting of the control LED is opened with a valve-open instruc-
tion.
When an error occurs in a supply cartridge while the valve is opened (at drawing or at cleaning), if
there is a cartridge which can supply ink, the valve is switched to continue the operation, if a supply
cartridge is removed, drawing is aborted and cleaning is terminated to return to the local state.
Since all 8 cartridges for except for 4-color are supply cartridges, when an error occurs, plotting stops,
cleaning finishes, and the status returns to local.
 Selection/determination of a supply cartridge (4-color only)
As ink is supplied by toggle switching of 2 cartridges for 1 supply path in JV33, a supply cartridge
should be selected. The followings are selection conditions of a supply cartridge.
Since all 8 cartridges for 6-color are supply cartridges, switching is not used.
a) When there is a cartridge having an error in 1 supply path.
• If another cartridge can supply, the cartridge is selected.
• The selection conditions depend on occurrence of an error, contents of the error and ink supply
timing. The ink supply is executed at discharging operation (drawing, flushing and so on) or at
suction operation (cleaning and filling).
The followings are cartridge selection conditions. As for errors, see “ Ink system error
monitoring” (P. 2 - 1 4 ).
Note : Supply is effective.
∆: Supply is effective when another cartridge is normal.
× :Supply is not effective
* Ink IC: NON-ORIGINAL INK, WRONG INK IC, Kind of INK, Color of INK, WRONG CARTRIDGE,
Expiration:2MONTH
1.
Error check of the cartridge.
2.
Selection/determination of a supply cartridge (depends on a state of the cartridge). (4-color only)
(Except for 4-color, all cartridges are supply cartridges.)
3.
Updating of each LED (depends on a state of the supply/error cartridge).
4.
Supply valve open/close operation of the cartridge selected in “2” with a valve operation instruction.
<Cartridge selection conditions>
Error content
Discharging
operation
Suction
operation
Normal cartridge

Cartridge near end

∆
Cartridge ink end
×
∆
Residual quantity 0 cartridge
× ×
No cartridge
××
InK IC *
× ×