Toshiba e-Studio477s, Service Manual, Page: 335 / 482

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EXTERNAL COUNTERS
10 - 3
10
10.2.2 Details of the signals
1. CTRON signal (output signals)
These signals are synchronized with electronic counter of the equipment and they become “Low”
when one sheet of paper is counted up. They are the signals for coin controller, and output from the
LGC board.
Fig.10-1
2. CTRCNT signal (input signals)
The CTRCNT signal enables to accept copies when the coin controller is connected, and copies can
be accepted with “Low”. In case of “High”, “Set Key Counter” appears and copies cannot be made.
3. MCRUN signal (output signal)
The MCRUN signal is changed to “Low” during copying. It becomes “Low” at 30 ms or more before
the CTRON signal is turned ON, and “High” at 50 ms or more after the EXTCTR signal goes OFF.
However, if copying is interrupted due to forced toner supply or similar, this signal is “High” until
copying is made possible again. This is the signal for the coin controller.
Fig.10-2
4. EXTCTR signal (output signal)
The EXTCTR signal is synchronized with “Exit sensor ON” and becomes “Low” (ON) for 200 ms.
The coin controller counts the number of times with this signal.
This is the signal only for the coin controller.
Fig.13-1
OFF
ON
<CTRON KCTRON>
Fixed time
Single count
OFF
ON
<MCRUN>
<EXTCTR>
<CTRON>
OFF
ON
OFF
ON
Fixed time
Fixed time
OFF
ON
<EXTCTR>
Fixed time
<PIS-EXIT: Paper exit sensor>
With paper
Without paper
(Paper length / Feeding speed)