SII DPU-S245 Use and care manual

DPU-S245 SERIES
THERMAL PRINTER
TECHNICAL REFERENCE
U00117152801

DPU-S245 SERIES THERMAL PRINTER TECHNICAL REFERENCE
Document Number U00117152801
First Edition August 2009
Second Edition February 2010
Copyright © 2009, 2010 by Seiko Instruments Inc.
All rights reserved.
Seiko Instruments Inc. (hereinafter referred to as “SII”) has prepared this technical reference for use by SII
personnel, licensees, and customers. The information contained herein is the property of SII and shall not be
reproduced in whole or in part without the prior written approval of SII.
SII reserves the right to make changes without notice to the specifications and materials contained herein and
shall not be responsible for any damages (including consequential) caused by reliance on the materials
presented, including but not limited to typographical, arithmetic, or listing errors.
is a trademark of Seiko Instruments Inc.
IrDA Protocol Stack ｢μDeepCore(r)1.1」(C)ITX E-Globaledge Corp. All Rights Reserved.
ESC/P is trademarks of SEIKO EPSON CORPORATION.
BHT-Ir is trademarks of DENSO CORPORATION.
Bluetooth is registered trademarks of Bluetooth SIG, Inc.

PREFACE
This technical reference describes the DPU-S245 series thermal printer.
(hereinafter referred to as “printer”)
Read the User’s Guide supplied with the printer for details regarding basic operation and maintenance
procedures.
DPU-S245 series have the following models.
･DPU-S245-00A-E
(Standard model)
･DPU-S245-01A-E
(Bluetooth supporting model)
The printer complies with EU RoHS Directive (2002/95/EC)

【Manual Configuration】
CHAPTER 1: TERMS USED IN THIS MANUAL
･This chapter describes the basic terms that are frequently used in this technical reference.
CHAPTER 2: SPECIFICATIONS
･This chapter describes the printer main body and thermal paper specifications.
CHAPTER 3: INTERFACE
･This chapter describes 4 types of the interface specifications which are required to connect the host
device with the printer.
CHAPTER 4: FUNCTION SETTINGS
･This chapter describes the function settings, test print and hex dump mode.
CHAPTER 5: LAMP DISPLAYAND SWITCH FUNCTION
･This chapter describes the printer status by lamp display and functions of switches.
CHAPTER 6: COMMAND DESCRIPTIONS
･This chapter describes the function of commands supported by the printer.
APPENDIX A: CHARACTER SETS (CHARACTER CODE TABLE)

v
TABLE OF CONTENTS
Section Page
CHAPTER 1
TERMS USED IN THIS MANUAL
CHAPTER 2
SPECIFICATIONS
2.1 PRINTER SPECIFICATIONS............................................................................................. 2-1
2.2 SPECIFIED THERMAL PAPER SPECIFICATIONS.......................................................... 2-3
2.2.1 Dimensions of Timing Mark Position............................................................................. 2-4
2.3 SPECIFIED BATTERY PACK SPECIFICATIONS............................................................. 2-6
2.4 PRECAUTIONS FOR USE................................................................................................. 2-7
CHAPTER 3
INTERFACE
3.1 SERIAL INTERFACE SPECIFICATIONS (RS-232C CONFORMITY) .............................. 3-1
3.2 USB INTERFACE SPECIFICATIONS................................................................................ 3-4
3.3 INFRARED INTERFACE SPECIFICATIONS..................................................................... 3-5
3.3.1 Physical Specifications.................................................................................................. 3-5
3.3.2 IrDA Specifications........................................................................................................ 3-5
3.3.3 BHT-Ir Specifications.....................................................................................................3-8
3.4 BLUETOOTH INTERFACE SPECIFICATIONS................................................................. 3-9
CHAPTER 4
FUNCTION SETTINGS
4.1 FUNCTION SETTING ........................................................................................................ 4-1
4.1.1 Function Settings(SWDIP1) .......................................................................................... 4-2
4.1.2 Function Settings(SWDIP2) .......................................................................................... 4-4
4.1.3 Function Settings(SWDIP3) .......................................................................................... 4-6
4.1.4 Function Settings(SWDIP4) .......................................................................................... 4-8
4.1.5 Function Settings by Switch Operation....................................................................... 4-10
4.1.6 Function Settings by Commands ................................................................................ 4-12
4.2 TEST PRINT..................................................................................................................... 4-13
4.3 HEX DUMP MODE...........................................................................................................4-14
CHAPTER 5
LAMP DISPLAY AND SWITCH FUNCTION
5.1 PRINTER STATE LAMP DISPLAY.................................................................................... 5-1
5.2 ERROR RECOVERY PROCEDURE................................................................................. 5-2
5.3 POWER SWITCH............................................................................................................... 5-3
5.4 FEED SWITCH................................................................................................................... 5-3
CHAPTER 6
COMMAND DESCRIPTIONS
6.1 THE SUMMARY OF COMMAND FUNCTION................................................................... 6-1
6.2 FUNCTION CODES........................................................................................................... 6-5
6.3 CHARACTER CODES ....................................................................................................... 6-5
6.3.1 JIS Code System...........................................................................................................6-5
6.3.2 Shift JIS Code System .................................................................................................. 6-7
6.4 MEMORY............................................................................................................................ 6-9
6.4.1 External RAM Memory.................................................................................................. 6-9
6.4.2 FLASH Memory........................................................................................................... 6-16

vi
6.5 COMMAND DESCRIPTION............................................................................................. 6-18
6.5.1 Command Format ....................................................................................................... 6-18
6.5.2 Formatting Commands................................................................................................ 6-19
6.5.3 Line Spacing Commands............................................................................................ 6-23
6.5.4 Tab Setting Commands............................................................................................... 6-25
6.5.5 Print and Paper Feed Commands............................................................................... 6-27
6.5.6 Print Position Commands............................................................................................ 6-29
6.5.7 1-byte Character Set Selection Commands................................................................ 6-31
6.5.8 1-byte Characters Definition Commands.................................................................... 6-34
6.5.9 Character Decoration Commands............................................................................... 6-36
6.5.10 Character Pitch Adjustment Command....................................................................... 6-40
6.5.11 Kanji Character Set Selection Commands.................................................................. 6-43
6.5.12 Kanji Character Definition Commands........................................................................ 6-45
6.5.13 Kanji Character Decoration Commands ..................................................................... 6-47
6.5.14 Kanji Character Pitch Adjustment Command.............................................................. 6-50
6.5.15 Image Command......................................................................................................... 6-53
6.5.16 Stamp.......................................................................................................................... 6-57
6.5.17 Other Commands........................................................................................................ 6-61
6.5.18 Ruler Line Commands................................................................................................. 6-62
6.5.19 Optional Font Commands ........................................................................................... 6-66
6.5.20 Bar Code Commands.................................................................................................. 6-69
6.5.21 Routine Commands..................................................................................................... 6-81
6.5.22 Page Mode.................................................................................................................. 6-86
6.5.23 Status Commands.......................................................................................................6-91
6.5.24 Character Set Command............................................................................................. 6-95
6.5.25 Auxiliary Function Commands .................................................................................... 6-97
6.5.26 Download Mode ........................................................................................................ 6-109
6.6 DEFAULTS..................................................................................................................... 6-114
6.7 INITIAL AUTOMATIC STATUS TRANSMISSION ......................................................... 6-116
6.8 COMMAND INDEX......................................................................................................... 6-117
APPENDIX A
CHARACTER SETS (CHARACTER CODE TABLE)
A.1 CHARACTER CODE TABLE.............................................................................................A-1
A.2 INTERNATIONAL CHARACTER SETS.............................................................................A-3
A.3 KANJI CODE TABLE..........................................................................................................A-4
A.4 KANJI QUARTER SIZE CHARACTER SET......................................................................A-5

vii
Section Page
TABLES
Table 1-1 Character Types and Relationship between 1-byte and 2-byte Characters................ 1-1
Table 2-1 Printer Specifications.................................................................................................... 2-1
Table 2-2 Thermal Paper Provided by SII.................................................................................... 2-3
Table 2-3 Specified Thermal Paper Specifications ....................................................................... 2-3
Table 4-1 Function Settings (SWDIP1) ........................................................................................ 4-2
Table 4-2 Function Settings (SWDIP2) ........................................................................................ 4-4
Table 4-3 Function Settings (SWDIP3) ........................................................................................ 4-6
Table 4-4 Function Settings (SWDIP4) ........................................................................................ 4-8
Table 5-1 Printer Status Signals................................................................................................... 5-1
Table 5-2 Error Recovery Procedure ........................................................................................... 5-2
Table 6-1 Command Summary .................................................................................................... 6-1
Table 6-2 Memory Sizes Right After Initialization......................................................................... 6-9
Table 6-3 Number of Bytes for Memory Control Information ....................................................... 6-9
Table 6-4 Commands for Allocating or Freeing Memory Area................................................... 6-10
Table 6-5 GS 'p' 0 Used Memory Capacity of PDF417 Print Command.................................... 6-11
Table 6-6 GS 'p' 1 Used Memory Capacity of QR Code Print Command.................................. 6-12
Table 6-7 GS 'p' 2 Used Memory Capacity of Data Matrix Print ................................................ 6-13
Table 6-8 Data Matrix Symbol Sizes.......................................................................................... 6-14
Table 6-9 GS 'p' 3 Used Memory Capacity of MaxiCode Print .................................................. 6-15
Table 6-10 Default Settings...................................................................................................... 6-114

viii
Section Page
FIGURES
Figure 1-1 Relationship between Input Buffer and Line Buffer .................................................... 1-1
Figure 1-2 Line Spacing ............................................................................................................... 1-2
Figure 1-3 Character Spacing ...................................................................................................... 1-2
Figure 2-1 Dimensions ................................................................................................................. 2-2
Figure 2-2 Dimensions of Timing Mark Position (Back of thermal paper).................................... 2-4
Figure 6-1 Program Sample 1.................................................................................................... 6-22
Figure 6-2 Print Sample 1........................................................................................................... 6-22
Figure 6-3 Program Sample 2.................................................................................................... 6-24
Figure 6-4 Print Sample 2........................................................................................................... 6-24
Figure 6-5 Program Sample 3.................................................................................................... 6-30
Figure 6-6 Print Sample 3........................................................................................................... 6-30
Figure 6-7 Program Sample 4.................................................................................................... 6-33
Figure 6-8 Print Sample 4........................................................................................................... 6-33
Figure 6-9 Program Sample 5.................................................................................................... 6-41
Figure 6-10 Print Sample 5......................................................................................................... 6-42
Figure 6-11 Program Sample 6.................................................................................................. 6-51
Figure 6-12 Print Sample 6......................................................................................................... 6-52
Figure 6-13 Program Sample 7.................................................................................................. 6-56
Figure 6-14 Print Sample 7......................................................................................................... 6-56
Figure 6-15 Program Sample 8.................................................................................................. 6-60
Figure 6-16 Print Sample 8......................................................................................................... 6-60
Figure 6-17 Program Sample 9.................................................................................................. 6-61
Figure 6-18 Print Sample 9......................................................................................................... 6-61
Figure 6-19 Program Sample 10................................................................................................ 6-65
Figure 6-20 Print Sample 10....................................................................................................... 6-65
Figure 6-21 Program Sample 11................................................................................................ 6-68
Figure 6-22 Print Sample 11....................................................................................................... 6-68
Figure 6-23 Program Sample 12................................................................................................ 6-76
Figure 6-24 Print Sample 12....................................................................................................... 6-77
Figure 6-25 Program Sample 13................................................................................................ 6-78
Figure 6-26 Print Sample 13....................................................................................................... 6-78
Figure
6-27 Program Sample 14................................................................................................ 6-79
Figure 6-28 Print Sample 14....................................................................................................... 6-80
Figure 6-29 Program Sample 15................................................................................................ 6-85
Figure 6-30 Print Sample 15....................................................................................................... 6-85
Figure 6-31 Program Sample 16................................................................................................ 6-90
Figure 6-32 Print Sample 16....................................................................................................... 6-90
Figure 6-33 Program Sample 17................................................................................................ 6-94
Figure 6-34 Print Sample 17....................................................................................................... 6-94
Figure 6-35 Program Sample 18................................................................................................ 6-96
Figure 6-36 Print Sample 18....................................................................................................... 6-96
Figure 6-37 Program Sample 19.............................................................................................. 6-104
Figure 6-38 Print Sample 19..................................................................................................... 6-104

1-1
CHAPTER 1
TERMS USED IN THIS MANUAL
This chapter describes the terms used in this manual.
INPUT BUFFER AND LINE BUFFER
When the DPU-S245 (hereinafter it is referred to as “printer”) receives data (character codes and
commands) from the host devices, it stores the data in the printer input buffer. The input buffer has
a capacity of 4K bytes (4096 bytes). Then, the printer retrieves data from the input buffer. If data is
character code, data is stored into the line buffer. If data is command, data is executed as
command immediately.
The printer inputs character codes to the line buffer until the amount of character codes reaches
the amount to be printed on one line, then prints the characters. The printer repeats this operation
to print all the character data.
The relationship between the input buffer and line buffer is illustrated in Figure 1-1.
Figure 1-1 Relationship between Input Buffer and Line Buffer
1-byte characters and 2-byte characters
The printer can print two-size characters; 1-byte size characters and 2-byte size characters.
Table 1-1 lists the character types which can be printed by 1-byte size and 2-byte size characters.
Table 1-1 Character Types and Relationship between 1-byte and 2-byte Characters
Character Types
1-byte characters Katakana character (ANK)
Extended graphics character (IBM Compatible)
Codepage 1252
2-byte characters Kanji, User-defined characters
* The size of a character to be printed differs depending on the font specified. (See 2.1 Printer Specifications.)
One Line of Characters
is Printed.
Line Buffer Print Operation
Input Buffer
Host Device

1-2
Line Spacing
Line spacing is the space between the lines of printed characters (See Figure 1-2).
ABC
ABC Line Spacing
Figure 1-2 Line Spacing
This printer use a line thermal print mechanism, therefore, a paper feed step is necessary before
printing characters or bit images.
The line feed command with printing feeds the paper for height of characters or bit images.
Therefore, a paper feed amount which is smaller than character or bit image height is ignored.
Printing with underline feeds the paper 4 dot lines in addition to the character height.
Line feeding without printing feeds the paper for specified line feed amount.
Character Spacing
Character spacing is the space between each character in the horizontal direction (See Figure
1-3).
A
B
Character Spacing
Figure 1-3 Character Spacing
Line
The word “line” in this manual indicates a line of characters. For example, the sentence “the printer
feeds paper one line” indicates that the printer feeds paper a line of characters.
Dot Line
The words “dot line” in this manual indicate a line of dots in the vertical direction. For example, the
sentence “the printer feeds paper by one dot line” indicates that the printer feeds paper by the
space of 1 dot.
Notation in the Technical Reference
Hexadecimal
Hexadecimal is showing as follows;
Example: 0AH (a hexadecimal unit 'H' is added behind a hexadecimal number.)
Character string
A character string is showing as follows;
Example: 'G' (a character string 'G' is enclosed with a single quotation mark.)

2-1
CHAPTER 2
SPECIFICATIONS
2.1 PRINTER SPECIFICATIONS
Table 2-1 Printer Specifications
Item Specification
Total number of dots 384 dots/line
Effective dot number 384 dots/line
Resolution 8 dots/mm
Printing width / paper width 48 / 58mm
Printing speed Maximum 100mm/s *1
Printing figure number 24 dots 1-byte characters :24 characters
(right character space is 4 dots)
24 dots 2-byte characters :12 characters
(left character space is 0 dot, right character space is 8 dots)
Character size
(height x width)
24 dots 1-byte characters :24 x 12 dots
16 dots 1-byte characters :16 x 8 dots
24 dots 2-byte characters :24 x 24 dots
16 dots 2-byte characters :16 x 16 dots
Character set Katakana character set *2
Extended graphics character set
Codepage 1252 character set
JIS 1st and 2nd level of Kanji *2
Interface Serial (RS-232C conformity)
USB (Ver.2.0 conformity)
Infrared (IrDAVer.1.2 / BHT-Ir protocol conformity)
Bluetooth (Ver.2.0+EDR conformity) *3
Input buffer size 4K bytes
Dimensions (width x depth x height) 83mm x 130mm x 45mm
Mass Approx. 280g (including the battery pack, excluding paper)
Operating temperature and humidity
range Temperature:-10 to 50°C Humidity: 30 to 80%RH (Non condensing)
Storage temperature and humidity
range Temperature: -30 to 70°C Humidity: 5 to 90%RH (Non condensing)
EMC VCCI Class B, FCC Class B, Industry Canada Class B,
CE (EMC)
The wireless
telegraph law
regulation conformity FCC, IC, CE (R&TTE), Radio Law of Japan
Regulations
Safety CE (LVD)
Countries under the regulations Japan, USA, Canada, EU, EFTA
*1: Using AC adapter, printing ratio is 7.5% or lower, thermal head temperature is 25°C.
*2: SII Japanese font set installed (at shipping).
*3: Only for Bluetooth-supporting model.

2-2
Dimensions
83
130
45 1.3
63.5
75.2
9.7 38
Unit : mm
Figure 2-1 Dimensions
Paper
Outlet

2-3
2.2 SPECIFIED THERMAL PAPER SPECIFICATIONS
Table 2-2 Thermal Paper Provided by SII
Item Specifications
Model TP-S245L-1
Type Normal paper roll
Paper width 0
１-
58 mm
Outside diameter 38mm max.
Paper thickness 59±5μm
Printing surface of Paper roll Outside
Table 2-3 Specified Thermal Paper Specifications
Item Specifications
TF50KS-E2D Nippon Paper Industries Co.
TP50KJ-R Nippon Paper Industries Co.
TL69KS-LH Nippon Paper Industries Co.
PD160R-63 Oji Paper Co., Ltd.
PD160R-N Oji Paper Co., Ltd.
P220VBB-1 MITSUBISHI PAPER MILLS LIMITED
AP50KS-FZ Jujo Thermal
AP50KS-D Jujo Thermal
AF50KS-E Jujo Thermal
F5041 Mitsubishi Hi-Tech Paper
P5045 Mitsubishi Hi-Tech Paper
KT55F20 Papierfabrik August Koehler AG
P300 Kanzaki Specialty Papers
P350 Kanzaki Specialty Papers
KIP370 Kanzaki Specialty Papers
KIP470 Kanzaki Specialty Papers
KF50 KANZAN
Paper mode*Paper roll
KPR440 KANZAN
Paper width 0
１-
58 mm
Outside diameter 38.1mm max.
Inside diameter 8mm min.
Spectral reflectivity Black, near-infrared reflectance should be 6% and below.
Printing surface of Paper roll Outside
* Use each specified thermal paper in an applicable thermal paper mode.

2-4
2.2.1 Dimensions of Timing Mark Position
Unit : mm
Figure 2-2 Dimensions of Timing Mark Position (Back of thermal paper)
58 +0/-1.0
11
7
5
b. Cut Position
a. Print start position
Unavailable
pre-print area
9.5

2-5
(1) Example of use of the marked paper roll
An examples of use of the marked paper roll shown Figure 2-2 is explained as below.
(a) Set the function setting of Paper Mode to “Mark Roll Paper”.
(b) Insert the thermal paper.
(c) Set the page length as the length from the beginning of the current mark to the beginning of the
next mark.
(d) Set the skip amount (non-printing area) in order to avoid printing at cutting position.
(e) Print data within the printable area.
(f) Use Form Feed command to find the beginning of the next mark.
The print start position after the beginning of the next mark is placed at position 'a', and the paper
cut position is placed at 'b' as shown in Figure 2-2.
Repeat steps (e) to (f).
(NOTE) When Mark Position Correct of SWDIP 4-5 is set as Enable, the printer operates
paper feeding to backward 5 mm just before printing process after placing print
start position.
If this function set as Enable, use the marked paper roll with 40mm or longer
length of mark distance to prevent paper jamming from feeding paper backward.

2-6
2.3 SPECIFIED BATTERY PACK SPECIFICATIONS
Item Specification
Model BP-L0715-A1-E
Available printing lines 1* 20000 lines min.
Battery Cycle Life 2* 300 cycles
*1: 25C, character spacing is 4 dots, line spacing is 34 dots, TF50KS-E2D selection, print density is 100%,
continuous printing with 'H' 1-byte characters, serial communication, fully charged with 8.4 V by specified battery charger.
*2: 25C, charged in the printer with specified AC adapter, print ratio is 12.5%, charged with 70%* or more of fully charged.
* the rate in environment of 0 to 50C becomes 40% or more.

2-7
2.4 PRECAUTIONS FOR USE
Always print the two-dimensional bar code and ladder bar code (its bar is to be printed verticality to
the printer) within 0 to 40°C to ensure the bar code's reading accuracy.
The two-dimensional bar code and ladder bar code printing always requires the low speed mode to
ensure its reading accuracy. Set the print speed to the low speed mode by using Motor Speed
Select (GS 'E') command.
The height of the ladder bar code requires over 10 mm to ensure its reading accuracy.
Be aware, in particular, that reverse printing and ruled line tend to increase the ratio.
* Parts where many black dots are used when viewed in the direction vertical to the paper feed direction.
Use of the battery pack at low temperature will run out of power in a shorter time.
When printing ruled lines, a 2-dot configuration is needed. In case of a 1-dot configuration, the
printed lines may be invisible.
Always use the printer within the shadowed range depicted in figure below Relationship between
Temperature and Humidity.
When using a Bluetooth interface, the radio environment around the printer may cause a failure in
communications. This is due to the specifications of Bluetooth, which is a radio communications
standard.
0 10 20 30 40 50
90
80
70
[°C]
[% RH]
60
Temperature
Humidity
10
20
50
40
30
40°C, 80%RH
50°C, 47%RH

2-8
When handling this product, be aware of static electricity. If the static electricity is discharged, this
could case communication failure. When this problem occurs, disconnect the USB connector that
is connected to the host device and wait few seconds before connect it again.
When the printer is left unused for a long period of time, a white powder appears to the surface of
platen. (This is the powder by which an ingredient of a thermal paper was recrystallized.)
If the powder appears to the platen, wipe the platen with ethanol and use the printer after ethanol
has dried completely.
Also, make sure not to adhere ethanol except the platen area. If ethanol adheres except the platen
area, wipe it off immediately.
(NOTE) Refer to "SAFETY PRECAUTIONS" and "OPERATING PRECAUTIONS" on DPU-
S245 SERIES USER'S GUIDE which be included with the printer for other
precautions.

3-1
CHAPTER 3
INTERFACE
This chapter describes 4 types of the interface specifications which are required to connect the host device
with the printer.
Irrespective of the interface used, amount of the input buffer in the printer is 4k bytes, and transmission
buffer is 768 bytes. If the transmission buffer becomes the condition of the buffer full, the printer waits data
processing until the buffer can be received data. Be aware that printing process does not performed in that
meantime.
3.1 SERIAL INTERFACE SPECIFICATIONS (RS-232C CONFORMITY)
(1) General specifications
Item Specification
Synchronization Asynchronous
Signal level MARK = –3.0 to –15.0 V: Logic '1'
SPACE= +3.0 to +15.0 V: Logic '0'
Baud rate 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200 bps
Data bit length 7 bits or 8 bits
Stop bit length 1 bit or 2 bits
Parity None, odd or even
Reset Break signal input to RXD (20ms or longer)
(2) Pin assignment
Pin No. Name I/O Function
1 N.C. - No connection
2 TXD O Sends data from the printer to the host device.
3 RXD I
Receives data from the host device.
Break signal input (SPACE) resets the printer.
4 - - Internally connected with pin No.6.
5 GND - Signal ground
6 - - Internally connected with pin No.4.
7 CTS I Outputs SPACE when the host device can receive data.
8 RTS O Outputs SPACE when the printer can receive data.

3-2
(3) Connector
3260-8S3: HIROSE ELECTRIC CO., LTD. or equivalent
(4) Examples of connection with the host device (a standard personal computer)
(5) Data reception
Busy control
In Busy Control, RTS outputs MARK until the printer is ready to receive data after power ON.
After the printer is ready, RTS outputs SPACE and the received data is input to the input buffer.
When there are 33 bytes or less remaining in the input buffer, RTS outputs MARK. The host
device does not transmit data during RTS outputs MARK. When the input buffer is ready to
receive data (there are 65 bytes or more in the input buffer) after stopping data reception, RTS
once again outputs SPACE. If an error occurs in the printer, RTS outputs MARK and inhibits data
entry until the error is cleared. If an error is cleared, RTS outputs SPACE again.
For RTS output when an error occurs, the setting is changed by Busy Output When Error Occurs at
function setting.
Xon/Xoff control
In Xon/Xoff control, TXD outputs Xon code (11H) from power ON until the printer is ready to receive
data. Received data is input to the input buffer. When there are 65 bytes or less remaining in
the input buffer, TXD outputs Xoff code (13H). The host device does not transmit data while Xoff
code is received. When the input buffer is ready to receive data (there are 129 bytes or more in
the input buffer) after stopping data reception, TXD once again outputs Xon code. When this
control method is selected, the RTS signal always outputs SPACE. If an error occurs in the printer,
TXD outputs Xoff code and inhibits data entry until the error is cleared. When the error is cleared,
TXD outputs Xon code again.
For Xoff code transmission when an error occurs, the setting is changed by Busy Output When
Error Occurs at function setting.
Data reception error in serial communication
When Parity is selected as Yes by the function setting, a '!' is printed next to data in which a parity
error occurred and a '?' is printed next to data in which any other error (framing error, etc.) occurred.
If a serial data reception error occurs, no error indication other than the printing of '!' and '?' is
performed (for example, the ERROR lamp does not light).
CTS 7
DTR 6
GND 5
DSR 4
RXD 3
TXD 2
Host device
Printer
N.C. 1
RTS 8
20 DTR
7 S.G
6 DSR
5 CTS
4 RTS
3 RXD
2 TXD
1 F.G
CTS 7
DTR 6
GND 5
DSR 4
RXD 3
TXD 2
Host device
Printer
N.C. 1
RTS 8
7 RTS
6 DSR
5 S.G
4 DTR
3 TXD
2 RXD
8 CTS
SHELL
SHELL
(Shield)
SHELL
SHELL
(Shield)
8-pin – 25-pin 8-pin – 9-pin
81