Separation - KIP 9000 Service Manual

3. 2. 8

Separation

The printing media is stuck to the Drum after the Transfer being attracted by the static force. It is
necessary for avoiding the jam to separate the media from the Drum smoothly removing the static
force. The Separation Corona takes AC discharge being supplied with the AC voltage and the DC
voltage.
AC voltage : 11KVp-p
DC voltage : -250V for plain paper
-300V for tracing paper
- 10V for film)
As the AC voltage is compensated by the negative DC voltage, the negative charges are provided
to the printing media more than positive ones. The positive charges on the printing media are
offset by these negative charges. On the other hand, the Separation Lamp throws light from under
the Separation Corona to remove the negative charges of the Drum. The static force between
media and Drum is removed, and the media is naturally removed from the Drum.
Separation Corona
NOTE
The main purpose of Separation Lamp is to assist to separate the media from Drum. But
sometimes the Separation Lamp may become a solution for getting a better transfer result
when some specific type of media is used. If the printed image looks not clear or not enough
dark when printed with some king of unsupported type of printing media for example, it will be
valuable to try to turn ON the Separation Lamp for such media. It can be turned ON/OFF per
media type in the Service Mode and User Mode. See the following each pages.
•
[(17) Separation Lamp ON / OFF (PPC) (No.17)] on page 8-60
•
[(18) Separation Lamp ON / OFF (Tracing) (No.18)] on page 8-61
•
[(36) Separation Lamp ON / OFF (Film) (No.C6)] on page 8-76
•
[8.2.6 User Mode 6 (Transfer Support LED ON/OFF [Film])] on page 8-174
Negative charges on the Drum are removed
by the light from the Separation Lamp.
Separation Lamp
3-13
Positive charges on the media are
removed by AC discharging.
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