j) RTC (IC403)
The RTC (real time clock) uses the backup lithium battery after power-off of the
printer to provide the clock information required for the time-based functions such
as cleaning.
k) Battery (BAT451)
The SRAMs and the RTC are powered by this backup battery. Backup battery life is
about 6.3 years.
l) LED (LED401)
This LED turns green when +5V is being supplied to the system controller for the
operation of the controller's logic.
m) LED (LED571)
This LED, located at the end of the 8-LED row, flashes red when the CPU on the
system controller operates correctly (this LED is off during initialization).
n) LED (LED572 to LED578)
These 7 LEDs in the 8-LED row are used for factory default settings or for future
development.
o) Dip SW (SW401)
This dipswitch is for the the R&D / factory use.
p) Button SWs (SW402 and SW571)
These button switches are for the R&D / factory use.
Do not operate those dip switch/button switches used for the factory and
R&D to avoid possible malfunctions or failures.
Part 5: 6.2.4 Checking the Dip SW Set-Up in the System Controller (page 5-
for information on the factory default settings.
4-51
Part 4: Technical Reference
BJ-W9000
CAUTION
NOTE
Содержание BJ-W9000
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