Input/Output Functions - SANEI ELECTRIC ?TP-5820A Instruction Manual

2-2. Input/output functions

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1. STROBE [input]
Command signal for reading data
At the fall of the signal, data is latched.
2. DATA0 to 7 [Input]
8-bit parallel data signal
3. BUSY [Output]
Signal indicating whether or not data is acceptable.
Note: During paper insertion, READY
paper has not completely reached the top. So shake by hand after paper has been fed
completely.
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4. ACK [Output]
Data input end acknowledge signal. After the signal is output, data is acceptable.
5. Paper end signal (PE) [Output]
When the thermal paper remainder becomes the amount equivalent to 7 lines (about 27
mm) from the top section, the PE terminal is at the "HIGH" level, and LED is ON. At this
time, the BUSY output is HIGH.
Note: At paper insertion, data entry performed unloaded (empty) printing when the LED
is OFF and paper has not completely reached the top.
6. Paper feed signal (FEED
The FEED switch is provided at the panel. Paper is fed as long as the switch is pressed
during roll paper insertion. However, this signal is ignored during printing or when an
input signal data of no less than one character has been received.
At the I/O connector, the FEED
printer head is in the home position (far right), the "LOW" level signal is confirmed and
paper is fed by line. While the switch is ON, paper is fed.
It requires the 100 ƒÊ s or more duration of the LOW level.
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7.Error signal (ERROR
When an error condition (paper clogging and the like) occurs during printing or paper
feeding, output to the printer mechanism is turned OFF.
In addition, the error output is at "LOW" level, and the BUSY output is at the "HIGH"
level. Data is not receivable. To reset the error state, enter the RESET signal or turn OFF
the power supply once.
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8. Reset (RESET ) [Input]
Like in POWER ON resetting, the printer is initialized.
All the input data is cleared by the LOW level signal, and paper is fed by line.
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) [Input]
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is provided. (dedicated to the switch input) When the
) [Input]
is established after the FEED
18
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OFF though the