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5-4 Media Wrinkles or Shrinks, or Feed Is Unstable
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, or media jams. Take
action as follows.
Media Wrinkles or Shrinks
Is the media loaded and set up straight and se-
curely?
Feed is not smooth when the media is not straight or is tensioned
unevenly on the left and right. Reload the media.
Was loaded media allowed to stand for some time?
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.
Are the media clamps mounted?
When you're performing printing, be sure to attach the media
clamps.
Was the media loaded while the print heater was
hot?
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. 39, "Settings for the Media Heating System"
Is the temperature of the media heating system too
high?
Set the temperature to suitable values for the type of media.
P. 39, "Settings for the Media Heating System"
Is the temperature of room too low?
Use this machine in an environment having an ambient tem-
perature of 20 to 32°C (68 to 90°F). If the machine is used at an
5
ambient temperature less than 20°C, 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.
To obtain stable printing results, however, the machine should
be used at an ambient temperature of 20 to 32°C(68 to 90°F).
120
Media Feed Is Not Straight
Is the media loaded and set up straight and se-
curely?
Feed is not smooth when the media is not straight or is tensioned
unevenly on the left and right. Reload the media.
Media Feed Is Not Smooth
Do the media or the shafts strike some other ob-
ject?
Make sure the media and the shafts do not touch anything
else. This may affect output, even when feed appears to be
smooth.
Is the media too thick?
Media that is too thick may not only cause unstable feed, but
may scrape the print heads, resulting in malfunction. Never use
such media.
Are the grit rollers dirty?
Check to make sure the grit rollers are free of buildup of foreign
material such as media scraps.
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