GRAPHTEC SignJet JS310-25ES Service Manual page 47

Connecting the inlet tubes
(14) Open the rear panel, and then remove the two screws holding rear of the main board cover.
(15) Open the front panel, and then detach the main board cover from the grooved pins.
(16) Remove the main board cover from the right side as shown in the below picture.
(17) Remove the two screws holding the fixer, and then detach the fixer.
JS310-UM-251-9370
6. Initial Ink Induction Procedure
Open the rear panel.
Main board cover
Remove the screws.
Open the front panel.
Main board cover
Main board cover
Fixer
Remove the screws.
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