Chapter 3 Disassembly And Assembly; Notes For Assembly And Disassembly - Epson TM-L90 series Service Manual

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Chapter 3
Disassembly and Assembly

Notes for Assembly and Disassembly

Always observe the following precautions when disassembling and assembling the printer.
CAUTION:
Wear a grounded wrist band when handling the internal circuit boards to prevent
damage from static electricity.
When removing an internal circuit board, place it on an anti-static rubber sheet or
similar surface to prevent damage from static electricity.
Be careful not to subject the circuit boards to shock or vibration, because this may
damage them.
Do not touch the circuit board or cable terminals with your hands to prevent
contamination that may result in a malfunction.
Always remove the power supply unit from the printer before working. Power is
flowing to the internal circuit boards even if you turn the printer off at the power
supply switch. You may damage the printer if you work while the power supply is still
attached.
Remove all peripheral equipment connected to the printer before starting work.
Do not perform any work that is not described in this chapter. Doing so may result in
injury or damage to the printer.
Do not touch the FPC or FFC pins.
Hold circuit boards only by their edges.
Rev.C
TM-L90 Service Manual
Disassembly and Assembly 3-1