Toshiba e-STUDIO2330C Service Manual page 1221

[B] Details of the signals
1. CTRON signal and KCTRON 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. Since TD62385 and TD62308 are used as the driver, the mechanical counter can be
driven directly.
Only with the KCTRON signal, the counter will make "Double count" if 08-352 (count setting of large
size paper) is set to "1" or "2".
<CTRON KCTRON>
Single count
<KCTRON>
Double count
2. CTRCNT signal and KCTRC 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.
The KCTRC signal enables to accept copies when the key counter 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 becomes ON, and becomes "High" at 50 ms or more after the EXTCTR signal
becomes OFF.
However, if copying is interrupted due to forced toner supply or similar, this signal is "High" until the
copying is available.
This is the signal for the coin controller.
<MCRUN>
OFF
ON
<CTRON>
OFF
ON
<EXTCTR>
OFF
ON
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OFF
ON
200ms
OFF
ON
200ms
Fig. 29-1
Min. 30ms
Fig. 29-2
29 - 3
100ms 200ms
Min. 50ms
e-STUDIO2330C/2820C/2830C/3520C/3530C/4520C
EXTERNAL COUNTERS
29