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3.4 Static Electricity
The electrostatic charge accumulated in clothing can damage electrical components
and alter their electrical characteristics.
Before disassembling the printer to service it, use a wriststrap or other grounded metal
object to discharge the static electricity. The following parts must not be touched
before you have discharged the static electricity from your body:
• Logic board, carriage board
• Motor control board
• Cable connectors and contacts
• BJ cartridge signal contacts
Part 1: Safety and Precautions
BJC-7100
1-14
Static Damage!
Carriage Motor
Carriage Board
BJ Cartridge Signal Contacts
Logic Board
Paper Feed Motor
Figure 1-17 Electrical System of Printer