Citizen CBM-270 Service Manual page 11

9. Detaching the Control Board
(1) Remove one M3 ´ 8(BT) screw.
(2) Turn on the Power switch.
(3) Detach the board. Slightly opening outside the plastic part near the Power switch, slide it
upward to the near side of the printer body to detach.
10. Detaching the shielding plate.
* For Steps 5 to 9, carry out only those required for maintenance.
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CBM-270 Service Manual
CITIZEN