Maintenance Precautions - OKIDATA Pacemark 3410 Service Manual

3.1.03 Maintenance Precautions

1. Do not disassemble the unit if it is operating normally.
2. Before starting disassembly and assembly, always power OFF the unit and detach the AC power cord.
3. Detach the interface cable, if installed.
4. Do not remove parts unnecessarily. Try to keep disassembly to a minimum.
5. Use the recommended maintenance tools.
6. When disassembling, follow the listed sequence. Failure to follow the correct sequence may result in
damaged parts.
7. Since screws, collars and other small parts are easily lost, they should be temporarily attached to the
original positions.
8. When handling circuit boards use extreme care. Integrated circuits (microprocessors, ROM, and RAM)
can be destroyed by static electricity.
9. Do not place printed circuit boards directly on conductive surfaces.
10. Follow the recommended procedures when replacing assemblies and units.
11. Perform the printhead gap adjustment when any of the items listed below occur.


Print Quality is darker on one side of the document.


Parts / Assemblies are replaced.
Printhead (3.2.01)
Platen Assembly (3.2.16)
Carriage Shaft (3.2.22)
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Service Guide PM3410
Chapter 3 Maintenance & Disassembly
Page: 33