Roland VersaUV LEF-20 Master Manual page 63

Problem Items to check
Did you shake the ink
cartridges before installing
them?
Has the printer been used
for a long time?
Was printing paused part-
way through?
Colors are unstable
Is the printer installed in a
or uneven
level and stable location?
Are the operating param-
eters set to appropriate
values?
Is the printer being used in
a location subject to severe
changes in the operating
environment?
Are the settings for the
[PRESET] menu item ap-
propriate?
Are the print heads dirty?
The media becomes
soiled when printed
Is the humidity too low?
Read This Section Whenever You Face a Problem (FAQ)
Action
Shake new ink cartridges 50 times (about 15
seconds) before you install them .
If, during use, the white ink concentration
becomes low, use the [CIRCULATE INK] function .
When printing is paused, the coloring at the
seam may be altered when printing resumes .
Avoid pausing printing . With the factory default
settings, printing pauses when an ink cartridge
becomes empty . Printing may also pause when
data is not sent from the computer quickly
enough . We recommend not performing any
other tasks with the computer while printing is
in progress .
Never install the machine in a location where it
is tilted or where it may wobble or experience
vibration . These factors may lead to dot drop-out
or reduced printing quality .
Depending on the setting of the [PERIODIC CL .]
menu, uneven colors may occur . If the setting has
been changed, try restoring it to its default value .
Large fluctuations in temperature or humidity
while printing is in progress may cause the colors
to change partway through printing . When
printing, use the machine in a location where the
temperature and humidity are stable .
If the settings selected with the [PRESET] menu
item are not suitable for the type of media, print-
ing may be adversely affected . Choose settings
optimized to the media you are using .
The following may cause ink to drip on the media
during printing:
• Buildup of fibrous dust (lint) around the heads
• Ink transferred to the heads due to rubbing
against the media
If this happens, perform manual cleaning . We
recommend carrying out periodic cleaning of
the heads .
Use the machine in an environment with a hu-
midity of 35 to 80%RH (no condensation) .
Page
• "2 . Insert the Ink Car-
tridges for the Respective
Colors" (First Step Guide)
• "Restoring the White Ink
Concentration" (P . 41)
—
—
• "Preventing Soiling and
Dot Drop-Out by Clean-
ing during Printing" (P .
17)
—
• "Saving Frequently Used
Media Sizes (Preset Func-
tion)" (P . 6)
• "Manual Cleaning"
35)
—
Chapter 3 Appendix
(P .
61