FabiaTech FB2642, Руководство пользователя

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Bit 7: This signal may become active during data entry, when the printer is
off-line during printing, or when the print head is changing position or in
an error state. When Bit 7 is active, the printer is busy and cannot accept
Bit 6: This bit represents the current state of the printer’s ACK signal. A 0 means
the printer has received the character and is ready to accept another.
Normally, this signal will be active for approximately 5 microseconds before
receiving a BUSY message stops.
Bit 5: A 1 means the printer has detected the end of the paper.
Bit 4: A 1 means the printer is selected.
Bit 3: A 0 means the printer has encountered an error condition.
data.
Printer Control Latch & Printer Control Swapper
The system microprocessor can read the contents of the printer control latch by
reading the address of printer control swapper. Bit definitions are as follows:
X X
1 2 3 4 5 6 7 0
STROBE
AUTO FD XT
INIT
SLDC IN
IRQ ENABLE
DIR(write only)
NOTE: X represents not used.
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