Initial Setup & Basic Operations DTG M Series Maintenance Manual
3.6.8.6 Making a Bi-Directional adjustment
The actual procedure is as follows.
1. Load a sheet of clean paper for printing in accordance with Section 3.6.4 "Loading Media
for Printing" p.49
2. Push the platen tray forwards so that about half of the platen is inside the printer. If the
platen is too high the platen LED will turn red and the platen will lower its self. If the
platen LED is yellow the printer is in platen gap lock mode, press both the UP and DOWN
buttons together to turn the lock mode off. The platen LED should go green to indicate all
is well and the optimum print head gap is now set.
3. To set the correct height press and hold the UP button, the platen will begin to rise until
the internal safety beam detects that the platen height is correct. The platen LED will go
red and the platen will stop moving, release the UP button and the LED will turn green
indicating that the platen height is now set. Refer to Section 3.6.5 "Checking media height"
p.51 for further information.
4. Press both the UP and DOWN buttons together to turn the lock mode on.
5. Press the EJECT button to ensure that the printer is not in “load mode”
When the printer bed is put into diagnostic mode as is done in preparation for the Bi-Directional
adjustment (by pressing & holding LOAD and EJECT buttons during power up in printer diagnostic
mode), the normal operation of the LOAD and EJECT buttons are suspended. That is, these buttons
will not control the movement of the Media Tray.
They do, however, set the status of the printer: If the LOAD button is pressed, the Load/Eject status
light will change to green, and the printer will “think” that media has been loaded. If the EJECT
button is pressed, the light will display red, and the printer will “think” that media is not loaded.
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