RW-337D Service Manual I Page 28 of 61
6)
Install a new movable blade in the reverse steps.
Caution:
While disassembling the locking frame of printer, the force must be moderate to avoid damaging the cover of
printer;
Please do not drag the connecting cable while pulling the cable out of main control board to avoid breaking
the cable connector;
The print head is a thermal part. After the printing is over, please wait until it cools down completely before
the disassembly;
Please make sure that the connecting cable of cutter has been inserted into corresponding socket during the
installation;
Please avoid squeezing the cable in reassembly;
In reassembling the cutter, please position the cutter on fix plate correctly and fix screws firmly.
5.1.3 Main control board replacement
1)
Turn off the power and detach the communication cable;
2)
Disassemble the parts of bottom cover module with reference to section 4.2.1;
3)
Pull out the cables from main control board with moderate force, and then disassemble the main control
board with reference to section 4.2.2;
4)
Install a new control board in the reverse steps.
Caution:
While disassembling the locking frame of printer, the force must be moderate to avoid damaging the cover of
printer;
Please do not drag the connecting cable while pulling the cable out of main control board to avoid breaking
the cable connector;
Please use moderate force to take off the interface board in horizontal direction to avoid damaging the pins on
main control board;
Please make sure all the cables connect to their sockets firmly;
Please avoid squeezing the cable in reassembly;
In reassembling the main control board, please fix all screws firmly.
5.1.4 Paper feed motor replacement
1)
Turn off the power.
2)
Disassemble the printer cover after print head cooling down with reference to section 4.2.1;
3)
Pull out the paper feed motor cable from main control board with moderate force.
4)
Remove the two screws (M3X8) with cross screwdriver and take off the paper feed motor.
