Stratasys J4100 User Manual page 94

Stratasys J4100 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-26000 Rev. C
Figure 4-92 Releasing the driver-card latch
(If necessary, you may use a 4-mm hex (Allen) key to loosen the screws.)
Figure 4-93 Releasing the print-head locking screws
4 Operating and Maintaining the Printer
4-69