Prusa Research i3 MK2.5S Multi Material Upgrade 2S, Руководство пользователя

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7. Finally, screw the Festo fitting back in and press the right button to continue the print.
How to solve a problem related to filament
​ load - slow flashing:
You need to get access to the tip of the problematic filament.
1. Roll with filament spool until the end of the filament reach end PTFE tube between
MMU2S unit and filament buffer.
2. Catch the end of the filament, cut approximately 10 cm of the filament and create a
sharp tip.
3. Insert the filament back into the white PTFE tube.
4. Press the
​ middle button ​ to start the loading sequence.
5. Push the filament until it’s caught by the drive gear.
6. If the LED switches to
​
red-green flashing
​
, press the
​
right button
​
to continue the
print.
7. If the LED turns red, repeat the process.
13.3 All five LEDs blinking red
All five simultaneously red-blinking LEDs indicate that there is a string of filament loaded
through the selector, while the selector needs to move to the side. Moving the selector would
cause the filament to break - this means the filament must be unloaded at first. This case
occurs usually when the printer is turned off during the printing so the filament is not
unloaded properly.
1. Using the Allen key, press the reset button on the right side of MMU2S unit.
2. Wait until the first LED turns green.
3. Select on LCD menu option Unload filament.
4. Select type of filament and wait for preheat.
5. Filament will be automatically unloaded.
13.4 All five LEDs blinking red and green
MMU2S unit can now deal with a state in which the Trinamic drivers were not able to provide
enough power for steppers. A possible cause can be a broken MMU2S power supply wiring,
connectors etc. Please check that all connectors are properly plugged into the MMU2S
board and make sure that the cables are in good condition. Also, make sure that the screws
on the Einsy terminal box for the power cables are properly tightened. If this state is
detected, the MMU2S unit rehomes and automatically continues printing. If the problem
occurs three times in a row, the MMU2S unit stops printing and starts flashing continuously
with red and green LEDs. Printing can be restored by restarting MMU2S unit using the
button on the right side of MMU2S unit.
13.5 Selector not moving
If the selector is not moving smoothly or if it cannot reach a certain position, the cause is
usually one of following issues:
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