Disassemble Lower Board Cover; Disassemble The Main Control Board And The Main Control Boardprotection Film - SNBC BTP-R880NPI Service Manual

10.

4.2.2 Disassemble lower board cover

4.2.3 Disassemble the main control board and the main control boardprotection film

Take off the lower body, separate it from the mechanism
and finish disassembling the printer housing
Disassemble two ST2.9tapping screws and separate the
hook of the bottom circuit board cover from the circuit
board cover to take off the bottom circuit board cover.
Unscrew the four M3*5 screws fixing the main control
board and separate the main control board from the
mechanism.
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BTP-R880NPII Service Manual