Epson 440 Manuale Utente

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Chapter 1 Product Description
Rev. A
1-29
1.7.3 
C206 PSB/PSE Board
The C206 PSB/PSE board is a switching regulator type power supply unit and constantly supplies stable
logic and power voltages to the printer mechanism and the main control board. Also, since this C206
PSB/PSE board has the power switch in the secondly side of the circuit, it is possible to keep supplying
electricity to the C200 MAIN control board for 30 seconds even after the power switch is turned off. Using
this time difference, even when mis-operation is done by the user such as turning off the power during
the middle of printing work, it prevents unexpected trouble with the printhead from occurring, by
transferring the printhead to the cap position before complete shut down. The C206 PSB Board is for
AC100 - 120V input voltage and the C206 PSE Board is for AC220 - 240V input voltage.
1.7.4 
C206 PNL Board
The C206 PNL board is located in the panel case where is in the right bottom of the front of printer and
consists of 3 switches, 4 LEDs.
AC input (CN1)
FUSE (F1)
Q1
FET (Switching)
PC1
Photo-coupler
Power line to
C200 MAIN/Mechanism
(CN2)
Figure 1-14. Exterior view of C206 PSB Power Supply Board
Figure 1-15. Exterior view of C206 PNL Board