1-16
Features and General Specifications
Rev.B
Interface Connector Pin Assignments
TM-U200D printer status and signals
Pin number
Signal name
I/O
Function
1
FG
-
Frame ground
2
TXD
O
Transmit data
3
RXD
I
Receive data
4
RTS
O
Same as the DTR signal
6
DSR
I
This signal indicates whether the host computer can receive data.
SPACE indicates that the host computer can receive data, and MARK indicates
that the host computer cannot receive data.
When DTR/DSR control is selected, the printer transmits data after confirming this
signal (except when transmitting data by
DLE EOT
and
GS a
).
When XON/XOFF control is selected, the printer does not check this signal.
Changing the DIP switch setting enables this signal to be used as a reset signal
for the printer.
The printer is reset when the signal remains MARK for 1 ms or more.
7
SG
-
Signal ground
20
DTR
O
1) When DTR/DSR control is selected, this signal indicates whether the printer is
busy. SPACE indicates that the printer is ready to receive data, and MARK
indicates that the printer is busy. The busy condition can be changed by using
DIP SW 1-8 as follows:
20
DTR
O
2) When XON/XOFF control is selected:
This signal indicates whether the printer is correctly connected and is ready to
receive data. SPACE indicates that the printer is ready to receive data. The
signal is always SPACE except in the following cases:
❏
During the period after the power is turned on until the printer is ready to
receive data.
❏
During the self test.
25
INIT
I
Changing the DIP switch setting enables this signal to be used as a reset signal
for the printer (see the DIP switch settings in the “Buttons and Switches” section
of this chapter). The printer is reset when the signal remains SPACE for 1 ms or
more.
Printer
DIP SW 1-8 status
ON
OFF
1. During the period from when the power is turned on
(including resetting using the interface) to when the
printer is ready to receive data.
BUSY
BUSY
2. During the self-test
BUSY
BUSY
3. During paper feeding using the paper feed button.
-
BUSY
4. When the printer stops printing due to a paper-end.
-
BUSY
5. When an error has occurred.
-
BUSY
6. When a temporary abnormality occurs in the
power supply voltage
-
BUSY
7. When the receive buffer becomes full. (*1)
BUSY
BUSY
O
ff-l
in
e
Содержание TM U200D - B/W Dot-matrix Printer
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Страница 145: ...Rev B Disassembly Assembly and Adjustment 5 49 TM U200D U200PD Technical Manual ...
Страница 146: ...5 50 Disassembly Assembly and Adjustment Rev B ...
Страница 147: ...Rev B Disassembly Assembly and Adjustment 5 51 TM U200D U200PD Technical Manual ...
Страница 148: ...5 52 Disassembly Assembly and Adjustment Rev B ...
Страница 154: ...Appendix A 6 Rev B Main Circuit Board A Parts Layout ...
Страница 155: ...Rev B Appendix A 7 TM U200D U200PD Technical Manual Main Circuit Board C Parts Layout ...
Страница 156: ...Appendix A 8 Rev B RS 232 Serial Interface Circuit Board Parts Layout ...
Страница 168: ...Rev B A 20 TM U200D U200PD Technical Manual Case Unit Lubrication Points Diagram 2 color Print Version ...
Страница 169: ...Rev B A 21 TM U200D U200PD Technical Manual Case Unit Lubrication Points Diagram ...