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Maintenance
T50/T100 PTM – User Guide – Version 2 Issue 1
Maintenance
Make sure that the following warnings and cautions are read and adhered to before carrying
out any maintenance work on a PTM.
Safety glasses and solvent resistant gloves must be used when contact with ink or
solvent liquids is possible. If cleaning solution comes in contact with skin, wash
immediately. If contact is made with eyes or mouth, wash them for at least 15 minutes
and seek medical advice.
• Failure to maintain a T50/T100 PTM as described below can lead to printing
problems which can be very difficult to resolve. The warranty will become void if a
PTM it not maintained correctly.
• Never use a cloth, brush, or any other material to clean the PTM’s nozzles. The noz-
zles are extremely sensitive to particles being trapped in them. The PTM must be
cleaned with the use of the PRIME function only, as described below.
• Do not move the PTM without first closing the Ink-Vent-Screw and securing the Noz-
zle-Protector-Plate on to the nozzles. Failure to do so can result in ink spillage or
cause air bubbles to become trapped in the ink system, which can be very difficult to
resolve.
Cleaning/Priming the Nozzles
Never use a cloth, brush, or any other material to clean the PTM’s nozzles. The nozzles
are extremely sensitive to particles being trapped in them. The PTM must be cleaned
with the use of the PRIME function only, as described below.
The T50/T100 PTMs have a prime function which is activated by pressing the PRIME button
on the back of the PTM. Refer to “Print Head Description” on page 5.
The prime function is used to prime the head with ink, solve problems with clogged nozzles,
or resolve poor print quality.
Pressing and holding the button in until an audible sound is heard and then releasing it will
cause the nozzles to be flushed with ink for less than one second. The vacuum pump will
however continue for thirty seconds.
Keeping the button pressed in will continue to flush the nozzles with ink until it is released.
Once released, flushing will stop but the vacuum pump will continue for up to thirty seconds.
When the nozzles are being flushed it is possible to observe ink seeping from them. The ink
that is expelled travels down the face of the nozzles and in to the Ink-Return-Orrifice (gutter),
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