5 Replacement
81
CL4NX/CL6NX Service Manual
5.7
Replacing the Power Supply Unit
CL4NX
Required tool:
• Phillips screwdriver (JIS #2 or equivalent)
1 Make sure that the printer is in power off mode, then disconnect the power cord from
the AC outlet.
2 Remove the left housing cover.
Refer to Section 5.1.1 Remove the Left
Housing Cover.
Refer to Section 5.8 Replacing the Interface
Board to remove the interface board if
applicable.
3 Disconnect all the cables from the
connectors on the main (CONT) PCB.
Refer to the step 3 of Section 5.5 Replacing the
Main (CONT) PCB for details.
4 Remove five screws . and then remove
the main (CONT) PCB assembly (with
bracket)
3.
5 Disconnect the cables from two
connectors $ on the power supply
unit
/.
6 Remove four screws 1 and then replace
the power supply unit
/.
7 Perform the assembly with the reverse
procedure.
After the replacement
• Power on the printer, check that the
printer operates correctly.
1
1
2
5
5
4
3