Media Feed Is Not Smooth; Media Wrinkles Or Shrinks - Roland TrueVIS VG-640 User Manual

Media Feed Is Not Smooth

A variety of problems can occur if the media feed is not smooth. This can cause such problems
as poor printing quality, contact with the media by the print heads, misaligned positioning, and
media jams. Take action as follows.

Media Wrinkles or Shrinks

Is the media loaded and set
up straight and securely?
Was loaded media allowed to
stand for some time?
Are the media clamps at-
tached?
Was the media loaded while
the print heater was hot?
Are the media heating sys-
tem temperatures too high?
Is the temperature of the
room too low?
Is the humidity of the room
too high?
Is the media sagging?
Feed is not smooth when the media is not straight or is tensioned
unevenly on the left and right. Reload the media.
P. 29 "Step 1 : Loading Roll Media (Setup of Media)"
P. 72 "Loading Sheet Media (Setup of Media)"
Media may shrink or wrinkle if it is heated for an extended time.
When printing ends, switch off the sub power or remove the
media.
When you are performing printing, be sure to attach the media
clamps.
Loading media after the print heater has warmed up causes the
temperature of the media to rise suddenly, which may cause the
media to shrink or wrinkle during printing. Before loading media,
switch off the sub power and allow the platen to cool.
P. 117 "Settings for the Media Heating System"
Set the temperatures to suitable values for the type of media.
P. 117 "Settings for the Media Heating System"
Use the machine in an environment with an ambient temperature
of 20 to 32°C (68 to 90°F). If the machine is used at an ambient
temperature of less than 20°C (68°F), then depending on the type
or width of the media, wrinkling or temperature-caused uneven-
ness may occur. If this happens, try lowering the temperature of
the media heating system by about 2°C (36°F). To obtain stable
printing results, however, use the machine in an environment
with an ambient temperature of 20 to 32°C (68 to 90°F).
Use the machine in an environment with a humidity of 35 to 80
% RH (no condensation).
If sagging media is used, it may come out wrinkled.
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