GRAPHTEC SignJet JS310-25ES Service Manual page 113

(5) Mount the print heads as shown in the picture below.
CAUTION:
When tightening the screws to the print heads, be sure to hold the jig from lower left direction to fit the
pins surely at the edge of frame.
Be sure that the printhead position alignment jig does not move during the alignment work.
(6) Remove the print head position alignment jig after you mount all print heads.
(7) Remove the foamed polystyrene that fixed the print head position alignment jig.
(8) Move the carriage to the cleaning position.
(9) Remove the print head position alignment jig.
(10) Perform final adjustment of the printhead position alignment following to section 8. Print head Adjustment
Procedures.
JS310-UM-251-9370
13. How to use the Print head position alignment jig
Rectangle hole for
mounting the print head
Attach the print head at lower left corner
of the rectangle hole.
Move the carriage to the cleaning position.
106
Screws must be tightening
with following order.
2nd
3rd
Print head
1st