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Prior to starting work on removing any components from your DTG HM1 Kiosk  (in fact, any DTG printer) ensure that the printer is switched off and that
mains power has been switched off and disconnected from the printer. Also disconnect USB cable(s) from the rear of the printer. You may find it easier to have
the printer in the ejected position prior to disconnecting the power source.  You may wish to release the Print Head from it’s home position on the Capping
Station prior to disconnecting power from the printer (press Ink button on top of Head Unit once, once Print Head has moved slightly to the left, kill the mains power to the printer).

Please note that photographs used throughout this guide may show either the DTG
HM1 Kiosk or the DTG Eclipse, however the procedures described will relate equally
well to both of these printer models.

1 Remove Head Unit Covers

1.1 Release Print Head
Release the Print Head from it’s locked / home position (if you haven’t already done
so as per above) by manually releasing the Carriage Lock:

Remove the rubber

grommet from the right
side panel of the Head
Unit. Using a flashlight
to see inside the
exposed hole in the
casing of the Head Unit,
fit a small, flat bladed
screwdriver into the slot
in the end of the white
nylon shaft which is
visible in the hole. Turn
the screw driver
anticlockwise until you
feel some resistance, the Print Head should now be free.

(Turning this shaft manually drives the Capping
Station / Wiper Blade & Carriage Lock mechanisms).

1.2 Head Unit Front Cover & Exhaust Fan Connection

Remove the front cover from
the Head Unit, by firstly
removing 6 blue screws as
marked here by the yellow
circles and small blue arrows,
then gently lifting the cover
slightly up and then forward.
Lay the cover on the printing
bed.

Note that the ink mist exhaust fan
on the left hand side of this cover
is connected by two wires to the
main body of the head unit and
you will need to disconnect these
wires before you can move the
cover completely away from the
printer:

1.3 Head Unit Rear Cover & Ink Tube Channel Covers
Remove the ink bottle compartment cover(s).

The rear cover for the Head
Unit is indicated by the arrows.
The three small circles indicate
the screws that must be
removed – remember that
there are another three screws
on the other side of the printer
(in the corresponding
locations) which also must be
removed.
The top screw on each side
actually secures the Ink Tube
Channel Cover (as shown).
Once you have removed this screw
this Channel Cover will be free to be
removed (remove it – both sides).

Once all screws indicated have been
removed, the rear cover for the Head
Unit should be free to be removed, by
lifting it straight up. Be sure to free the ink tubes from the Ink Tube Channel(s) as you are lifting the cover.

2 Remove Front Frame Assembly

2.1 Disconnect Gap Sensor (RHS)
Disconnect the wires for the Gap
Sensor on the right side of the
printer head unit.

2.2 Remove Frame Assembly Screws

Release the guide pin as indicated in this photograph, then remove the front frame assembly by gently sliding it forward.

3 Disconnect Waste Ink Tube Extention

Pull the waste ink tubes from the waste ink bottle .

For the HM1, you may need to remove the waste ink bottle compartment divider for better access.

Remove the waste ink tube
extensions by releasing the clamps

that secure the extensions to the
waste ink tubes, and pulling the
extensions free. The clamps can be
released by squeezing the “wings”
of the clamp together.

4 Disconnect Pump Motor Connector & Earth Cable
Remove the screw that secures the Earth
Cable (brown cable shown here), and
disconnect the Pump Motor Connector
from the Relay Connector.

5 Remove Ink System Guide
Plate Remove the two screws that secure the Ink System Guide Plate and remove it:

6 Remove Screws for Ink System and Right Support Frame
Remove the two screws that secure
the ink System Unit

Remove the two screws that secure
the Right Support Frame for the Ink
System Unit, and remove the Right
support Frame.

7 Remove the Ink System Unit
Remove the Ink System Unit by gently maneuvering it forward and slightly downwards.
When the Ink System Unit is
removed from the Printer
Mechanism, the Paper EJ Lock
Release Cam may drop off. In such
case, correctly install it referring to
the picture right.

8 Ink System Unit Replacement & Printer Reassembly
When replacing the Ink System
Unit, be sure to align the
positioning holes on the Right
Support Frame with the Guide Pins
on the Main Frame.

Reassembly should be a relatively simple matter of following the above disassembly
procedure in reverse.

Download the PDF Replacing the Ink System in a DTG HM1