2. MAJOR UNIT REPLACEMENT

EO18-33018

2.3 Replacing the MAIN PC Board

6)Remove the two B-3x6 screws and the two SMW-3x6 screws, then remove the MAIN PC board from the MAIN PCB support frame.

MAIN PC Board

B-3x6 Screw

MAIN PCB Support Frame

SMW-3x6

7)Replace the MAIN PC board with a new one, and reassemble in the reverse order of removal.

MAIN PC Board

8)After replacing the MAIN PC board, perform the following operations.

(1)Perform a RAM clear.

(2)Restore the printer system setting according to the printout of the parameter settings.

(3)Perform a media sensor adjustment.

(4)Perform a test print to print to confirm that the printer works properly.

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Toshiba B-852-R manual Main PC Board 3x6 Screw Main PCB Support Frame SMW-3x6