Konica Minolta KM256 Manual page 60

converter
board
breakdown
Head data line
not
well
The ink supply
system
breakdown
Raster
encoder
Power
breakdown
Carriage
board broken
Main
broken
All heads
The
come out no
encoder
ink
connect
or broken
The
fiber
connect
or broken
Serve
broken lead no
ink to the sub
ink tank
The
Lose line
temperature
is too low
（ also change the
head
board ） ， if other
head can out ink,to
check the data line
and the converter
board
fasten Check the data line Fasten it
Check the ink tuber
of the print heads
and the all the
tuber,weather ink
shortage or leak
air
Ruled out the above
all,check
raster encoder
Check the 12v/24v
supply
voltage
carriage board
board
raster
not Check the raster
well encoder
optical
not Check the optical
well fiber
board
Check weather have
signal come to the
serve board
Check
temperature
56
data
converter or
converter
board
Repair the
ink supply
system
the Replace it
of the Repair it
Replace it
Replace it
Reinstall
or replace
Reinstall
or replace
Replace it
Increase
the the
temperatur
e
line
the
12V
(11.75V-12.25
V)
24V
(23.2V-25V)
Still
o o
18 C-28 C
in