5 Replacement
75
S84-ex/S86-ex Service Manual
5.6
Replacing the Operator Panel KB PCB
Required tool:
• Phillips screwdriver
1 Make sure that the printer is in power off mode, then disconnect the power cord from
the AC outlet.
2 Remove two screws attaching the
operator panel assembly to the center
frame.
3 Disconnect the connector on the rear of
the operator panel assembly .
4 Remove four screws , attaching the
operator panel KB PCB to the
operator panel assembly .
5 Press the catch on the right side of
operator panel assembly and
remove the operator panel KB PCB
.
Replace the defective operator panel
KB PCB
with a new operator panel
KB PCB.
6 Perform the assembly with the reverse
procedure.
After replacement
• Adjust the print darkness.
Refer to Adjustment of the Print Darkness in chapter 5 of S84-ex/S86-ex operator manual.
• Adjust the pitch.
Refer to Adjusting the Print Position in chapter 5 of S84-ex/S86-ex operator manual.
• Adjust the offset.
Refer to Adjusting the Media Stop Position in chapter 5 of S84-ex/S86-ex operator manual.
• Adjust the buzzer volume.
Refer to Adjusting the Buzzer Volume in chapter 4 of S84-ex/S86-ex operator manual.
• Adjust the display brightness.
Refer to Adjusting the Display Brightness in chapter 4 of S84-ex/S86-ex operator manual.