MX-M350/M450 N/U UNPACKING AND INSTALLATION 6 - 6
<3> Reattach the paper tray of the main unit.
5) Connect the power supply I/F harness to the PCU PWB of the
main unit of the printer.
<1> Remove the screw that fixes the harness cover of the main
unit of the printer and slide the harness cover up to remove it.
Process the harness cover as shown in the illustration.
<2> Connect the power supply I/F harness connector (red, 22pin)
to CN11 (red connector) of the PCU PWB of the main unit of
the printer.
Connect the connector (white, 4pin) of power supply I/F har-
ness to the I/F connector (white, 4pin) of the main unit.
Remove the M4 screw shown in the illustration, insert the cir-
cle terminal of ground harness, and it fixes again.
<3> Reattach the harness cover to its original position and fix it
with the removed screw.
At this time, ensure that the power supply I/F harness is
arranged as shown in the illustration.
• Fix the harness securely to the wire saddle.
6) Adjust the position of the paper guides of the upper paper tray
of the stand/paper drawer.
Refer to "Setting and adjustment" described later.
7) Carry out the off center adjustment.
C. AR-MU2
1) Turn off the main switch of the main unit of the printer.
Turn the main switch located on the front side of the main unit
to the "OFF" position.
Then, remove the power plug of the main unit from the outlet.
Harness cover
Cut out.
Screw
Connector
CN11
Wire saddle
Harness cover
Power supply
I/F harness
Screw
Wire saddle
<Parts included>
Front mounting plates:
2 pcs.
Rear mounting plates:
2 pcs.
Screws (M4x8):
4 pcs.
"OFF"
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