Service manual

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EPSON LQ-300+ Revision C
Disassembly and Assembly Disassembly and Assembly 60
4.2.4 Board Assembly and Panel Removal
1. Remove the upper housing. (See 4.2.2 "Upper Housing Removal".)
2. Remove the panel FFC from the connector of panel board assembly.
3. Remove 3 screws (CBP, 3x10, Torque: 0.78-0.98N.M) securing the panel board
assembly to the lower housing.
4. Remove the panel board assembly from the lower housing.
Figure 4-5. Board Assembly and Panel Removal
4.2.5 C395 MAIN Board Assembly Removal
1. Remove the upper housing. (See 4.2.2 "Upper Housing Removal".)
2. Remove the printer mechanism. (See 4.2.3 "Printer Mechanism Removal".)
3. Remove 2 hexagon nuts securing the serial interface connector to the lower shield
plate.
4. Remove the serial interface connector from the installation hole of the lower shield
plate.
5. Remove 2 screws (CP, 3x4, Torque: 0.48-0.78N.M) securing the parallel interface
to the lower shield plate.
6. Remove the option FFC and panel FFC from CN12 and CN13 on the board.
7. Remove the harness from the P/S board assembly from CN8.
8. Remove 3 screws (CBP, 3x10, Torque: 0.78-0.98N.M) securing the main board
assembly to the lower housing.
Panel Board Assembly
CBP (3x10)
Panel FFC
A D J U S T M E N T
R E Q U I R E D
When the main board assembly is replaced, perform destination
setting and Bi-D adjustment.