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Figure 5

A

7. Replacing the Printer Engine Board
Firmware (Figure 5)
• 

Remove the Printer Engine Board
Firmware IC4 (A).

• 

Install the upgraded Printer Engine
Board Firmware.

CAUTION: 

1) Make sure that the notch in
the replacement PROM aligns
with the notch in the PROM
socket.

2) Make sure all pins are
inserted into the PROM socket
and that no pins fold under the PROM.

GO TO THE NEXT PAGE FOR INSTALLATION INSTRUCTIONS !

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