MUTOH Viper Extreme, User Manual

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User’s Guide Viper Extreme
CHAPTER 3: Basics
29 AP-75330 – Rev. 1.0 – 14/01/09
3.3.1.4 Pressure rollers disabler tool
The pressure roller disabler tool allows a pressure roller to be lifted while printing, thus providing the
necessary space for media to expand.
Notes
When using roll media, we recommend you to use 2 pressure rollers disabler tools on both side of the
media, as well as 2 on 1/3 and 2 on 2/3 of the media.
It is not necessary to use pressure rollers disabler tools when using sheet media.
3.3.1.5 Media Retainers
The media cockling causes the transfer paper edges to curl. Media retainers keep the media edges pushed
down.
Notes
When using roll media, we recommend you to always use the media retainers.
When using the media retainers, do not use the cut function.
Notes
When using sheet media, media retainers are not necessary. If used, please make sure you load the
media correctly. Otherwise, media will slant and the media retainers could tear the transfer paper.
3.3.2 Measurements to minimize head touching cockling media
In case of media cockling following tools are available to avoid the print heads to touch the media (protect
heads and print result).
3.3.2.1 ETT (patent pending)
The ETT Extra Tension Tool pulls the media in line with the print platform. The tension on the sides is
always bigger than in the middle. As a result possible curls are straightened.
Notes
Always make sure that the ETT supports the complete width of the paper. Especially the edges of the
media must be supported.
Only use the middle part of the ETT if medi
a width is larger than 44” (for 65” printer)
Only use the middle part of the ETT if medi a width is larger than 51” (for 90” printer)
3.3.2.2 Head Height
The following head heights are available on the Viper Extreme: 1.2 mm (LOW), 2.2 mm (MIDDLE) and 4 mm
(HIGH). (Default: Middle)
Notes
We recommend you to use the lowest possible head height. This to obtain the best printing quality.
Notes
At all head heights, be sure that the correct media thickness is set!