Assembly/Disassembly; Precaution For Parts Replacement - Oki ML420 Maintenance Manual

3.

ASSEMBLY/DISASSEMBLY

This section explains the procedures for removing and installing various assemblies and units
in the field.
Description is mainly limited to the removal procedure; installation should basically be performed
in the reverse sequence of the removal procedure.
3.1

Precaution for Parts Replacement

(1) Remove the AC cable and the interface cable before disassembling or assembling.
(a) Turn off the AC power switch. Remove the AC input plug of the AC cable from the
receptacle. Remove the AC cable from the inlet on the printer.
(b) To connect the AC cable again, connect it to the inlet on the printer first, then insert
the AC input plug into a receptacle.
AC receptacle
AC cable
(2) Do not disassemble the printer as long as it is operating normally.
(3) Do not remove unnecessary parts, and limit the disassembly area as much as possible.
(4) Use the designated service tools.
(5) Carry out disassembly in the prescribed sequence; otherwise, damage to the parts may
result.
(6) It is advisable to temporarily install screws, snap rings and other small parts in their original
positions to avoid losing them.
(7) Whenever handling the microprocessors, ROM, RAM IC chips and boards, do not use
gloves which may cause static electricity.
(8) Do not place the printed circuit board directly on the equipment or on the floor.
(9) If adjustment is specified in the middle of installation, follow the instructions.
42113901TH01 Rev.3
AC input plug
Inlet
Oki Data CONFIDENTIAL
Interface cable
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