Details Of The Signals - Toshiba e-STUDIO556 Service Manual

13.2.2

Details of the signals

1. TORON signal and KCTRON signal (output signals)
The TOLON signal is a count signal synchronized with an electronic counter for the equipment. This
signal is turned to a low level (ON) every time the counter counts up.
This output signal also drives each mechanical counter directly.
* If "1" or "2" is set for the setting code 08-6010 (counter setting for large-sized paper), a sheet of
large-sized paper is counted as two sheets only when the KCTRON signal is turned to a low level.
The CTRON signal, which is output from the LGC board, is used for both copy key cards and coin
controllers.
The KCTRON signal also output from the LGC board is for key copy counters.
2. KCTRC signal (input signal)
This signal is a connection signal that detects whether each counter is installed or not. The counter
is installed when this signal is at a low level.
When this signal is at a high level, copying with the counter is disabled.
Note that the loop of the counter harness (J590) must be cut off and the signal turned to a high level
when a key copy counter is installed. (The loop does not need to be cut off and the signal must be
kept at a low level when a copy key card or a coin controller is installed.)
This signal is used commonly among key copy counters, copy key cards and coin controllers.
3. MCRUN signal (output signal)
This signal is turned to a low level while the equipment performs copying.
When copying is interrupted due to forcible toner supply or another reason, however, this signal
remains at a high level until the equipment becomes ready for copying again.
This signal, which is output from the LGC board, is used for both copy key cards and coin
controllers.
4. EXTCTR signal (output signal)
This signal is turned ON, since it is synchronized with the turning OFF of the exit sensor.
A coin controller counts up the degree of usage of copy cards by means of this signal.
This signal, which is output from the LGC board is used only for coin controllers.
5. BKCTR signal, MNCTR signal (input signal)
The BKCTR signal is turned to a low level (ON), it is synchronized with the TOLON signal when
paper is fed from a drawer or the bypass tray. This signal is for counting print jobs for the front side
of the paper.
The MNCTR signal is turned to a low level (ON), it is synchronized with the TORON signal when
paper is fed from the ADU. This signal is for counting print jobs for the back side of the paper.
This signal, which is output from the LGC board is used only for copy key cards.
6. SIZE3,SIZE2, SIZE1, SIZE0 signal (output signal)
These four signals are output in combination corresponding to the size of the copy paper.
This signal, which is output from the LGC board, is used only for copy key cards.
7. CTRCN2 signal (output signal)
This signal enables copying with each counter. Copying is enabled when this signal is at a low level.
Copying is disabled when it is at a high level.
This signal is used for both copy key cards and coin controllers.
8. L/S signal (output signal)
When large size paper (A3 / A3 wide / LD) is selected or paper size is not specified with the manual
feeding, it outputs "Low" in real time. In other cases, it outputs "High". The setting change for large
size paper is performed with F/W.
This is the signal only for the coin controller.
9. B/W signal (output signal)
If the black mode is selected, it outputs "Low" in real time. In other cases, it outputs "High". This is
the signal only for the coin controller.
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e-STUDIO556/656/756/856(Ver03)
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