Stratasys J850 User Manual page 105

Stratasys J850/J835 User Guide
13. Remove the driver card by releasing the latch at the points shown.
14. Release the upper and lower screws that secure the print head in the block.
DOC-18001 Rev. H
Figure 4-107 Releasing the driver-card latch
(If necessary, you may use a 4-mm hex (Allen) key to loosen the screws.)
Figure 4-108 Releasing the print-head locking screws
4 Operating and Maintaining the Printer
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