Roland VersaUV LEF-20 Master Manual page 64

Read This Chapter Whenever You Face a Problem (FAQ)
Problem Items to check
Did you shake the ink
cartridges before load-
ing them?
Have the printer been
used for a long time?
Was printing paused
partway through?
Is the printer installed
Colors are unstable or
in a level and stable
uneven
location?
Are
parameters set to ap-
propriate values?
Is the printer being
used in a location sub-
ject to severe changes
in the operating envi-
ronment?
Are the settings for the
"PRESET" menu item
appropriate?
Are the print heads
dirty?
The media becomes
soiled when printed
Humidity is too low
62 Chapter 3 Appendix
Action
Before loading a new ink cartridge, shake each of
them 50 times (about 15 seconds).
If the white ink concentration becomes low dur-
ing use, use the "CIRCULATING INK" feature.
When printing is paused, the coloring at the
seam may be altered when printing resumes.
Avoid pausing printing. By default, printing
pauses when ink remaining inside the machine
runs out. 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-dropout
or reduced printing quality.
Depending on the settings for the "PERIODIC CL. "
the operating
menu, uneven colors may occur. If the settings
have been changed, try restoring them to their
default values.
Large fluctuations in temperature or humidity
while printing is in progress may cause the colors
to change partway through the 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 for 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, clean the print heads manu-
ally. We recommend carrying out periodic head
cleaning.
Use this machine in a 35-80% RH (non-condensa-
tion) environment.
Page
"2. Insert the Ink Cartridges
for the Respective Colors"
(First Step Guide)
"Restoring White Ink Con-
centration" (p. 41)
—
—
• "Preventing Soiling and
Dot Drop-Out by Clean-
ing During Printing" (p.
17)
—
• "Saving Frequently Used
Media Size (Preset Func-
tion)" (p. 6)
• "Manual Cleaning" (p.
35)
—