1-20
Features and General Specifications
Rev.B
Interface Connector Pin Assignments
TM-U200PD printer status and signals
NOTES:
❏
A prefix "n" to signal names refers to "L" active signals. To the host provided with none of the signal lines listed
above, both-way communication fails.
❏
For interfacing, signal lines shall use twisted pair cables with the return sides connected to signal ground level.
❏
Interfacing conditions shall be all based on the TTL level to meet the characteristics described below. In addition,
both rise time and fall time of each signal shall be 0.5Js or less.
❏
Data transmission shall not ignore the signal nAck or Busy. An attempt to transmit data with either signal, nAck or
Busy, ignored can cause lost data. (Data transmissions to the printer shall be made after verifying the nAck signal
or while the Busy signal is at the "L" level.)
❏
Interface cables shall be as minimum required short in length as possible.
NC: No Connect
ND: No Defined
Pin number
Source
Compatibility Mode
Nibble Mode
Byte Mode
1
Host
nStrobe
HostClk
HostClk
2
Host/Ptr
Data0(LSB)
Data0(LSB)
Data0(LSB)
3
Host/Ptr
Data1
Data1
Data1
4
Host/Ptr
Data2
Data2
Data2
5
Host/Ptr
Data3
Data3
Data3
6
Host/Ptr
Data4
Data4
Data4
7
Host/Ptr
Data5
Data5
Data5
8
Host/Ptr
Data6
Data6
Data6
9
Host/Ptr
Data7(MSB)
Data7(MSB)
Data7(MSB)
10
Printer
nAck
PtrClk
PtrClk
11
Printer
Busy
PtrBusy/Data3,7
PtrBusy
12
printer
PError
AckDataReq/
Data2,6
AckDataReq
13
Printer
Select
Xflag/Data1,5
Xflag
14
Hostr
nAutoFd
HostBusy
HostBusy
15
NC
ND
ND
16
GND
GND
GND
17
FG
FG
FG
18
Printer
Logic-H
Logic-H
Logic-H
19-30
GND
GND
GND
31
Host
nInit
nInit
nInit
32
Printer
nFault
nDataAvail/Data0,4
nDataAvail
33
GND
ND
ND
34
Printer
DK_STATUS
ND
ND
35
Printer
+5V
ND
ND
36
Host
nSelectIn
1284-Active
1284-Active
Summary of Contents for TM U200D - B/W Dot-matrix Printer
Page 2: ...technical manual TM U200D U200PD EPSON English 4005680 ...
Page 4: ...EPSON SEIKO EPSON CORPORATION Printed in Japan E9608130 0000SE ...
Page 145: ...Rev B Disassembly Assembly and Adjustment 5 49 TM U200D U200PD Technical Manual ...
Page 146: ...5 50 Disassembly Assembly and Adjustment Rev B ...
Page 147: ...Rev B Disassembly Assembly and Adjustment 5 51 TM U200D U200PD Technical Manual ...
Page 148: ...5 52 Disassembly Assembly and Adjustment Rev B ...
Page 154: ...Appendix A 6 Rev B Main Circuit Board A Parts Layout ...
Page 155: ...Rev B Appendix A 7 TM U200D U200PD Technical Manual Main Circuit Board C Parts Layout ...
Page 156: ...Appendix A 8 Rev B RS 232 Serial Interface Circuit Board Parts Layout ...
Page 169: ...Rev B A 21 TM U200D U200PD Technical Manual Case Unit Lubrication Points Diagram ...