Ricoh Ri 1000 Manuale di risoluzione dei problemi - Pagina 2
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Issue/ Error
1) Fuzzy blurry prints
2) Horizontal banding -
thin horizontal lines
across the entire shirt
Possible reason
Table height is to low
Too much ink (oversaturated)
causing bleeding (mostly for
white or light shirts without
pretreat
Nozzle check shows all
nozzles but some areas show
deflection. (See section 6.1
Nozzle check)
For dark shirt with a white
under base- poor pretreat -
Not enough pretreat can
make the white can CMYK
areas of print to appear dull
or fuzzy. Especially if a
section of the print appears
sharp and another section
appears dull or fuzzy
Head alignment is off
Nozzles missing - if nozzle
check shows some nozzle
missing
Nozzles all there but some
showing minor deflection
Countermeasure
For most T-shirts the indicator
below the height adjustment knob
on the table should be set to 0 or
near 0. The best printing is achieved
when the print head is 1.5mm away
from the printing surface
Check the settings in the RIP -
especially rendering intent
(perceptual is default and should be
used in most cases). Make sure the
ink set and profiles are correct.
Profiles meant for 600 x 600 dpi will
have to much ink if 1200 X 1200 dpi
output is selected
perform head clean or cleans and
recheck nozzle to see if the
deflection is gone
See section 5 user manual
Perform head alignment procedure
(see section 7.1) make sure to rule
out the above reasons before this
adjustment
Perform head cleans until the CMYK
nozzles are 100%
Check table height - the effect of
any deflection will be exaggerated if
the printing surface is too far away
from the head - For most T-shirts
the indicator below the height
adjustment knob on the table
should be set to 0 or near 0. The
best printing is achieved when the
print head is 1.5mm away from the
printing surface