Oce Arizona T220UV, User Manual

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Ink System Management 69
How to Change Blot Cloth
Introduction
The blot station is located in the left side of the gantry, opposite to the Home position. The blot paper is moved up towards
the carriage, by means of a single pneumatic cylinder. The blot paper is supplied on a roll and is advanced using a motor.
The motor has an encoder and a variable density optical sensor to determine the diameter of the remaining blot paper, and
therefore how far the motor needs to turn to advance the correct amount of paper. This is also used to sense when the roll
needs to be changed.
Purpose
A blot is required to remove excess ink and/or solvent from the printhead’s nozzle plates. Also, after an ink head spit, the blot
paper is used to soak up the excess ink.
When to do
The blot cloth is supplied in a roll. When the blot cloth requires replacing, a message is displayed for the operator on the
control panel.
Before you begin
Make sure that the blot station is in its default raised position. A latch is used to lower the blot Station to allow access to the
underside of the carriage - make sure this latch is in the upper position.
Attention:
Do not re-use blot cloth as this may cause improper blot resulting in overspraying and poor quality prints.
Note:
Check the blot cloth periodically to make sure it is not "coning" (skewing to the side) as this can cause the roll to fall
off the spindle.
Illustration
[19] Blot Station
[19] Blot Station