SEWOO WTP-100 User manual

WTP-100
Thermal Receipt printer
Technical manual

TECHNICAL MANUAL
TITLE : WTP-100 Document : 010608C
Revision : 01
06/ 08/ 2001
Page2
SEWOO TECH CO., LTD.

TECHNICAL MANUAL
TITLE : WTP-100 Document : 010608C
Revision : 01
06/ 08/ 2001
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TABLE OF CONTENTS
1. General Specifications
1.1 Printing Specifications
1.2 Character Specifications
1.3 Auto Cutter
1.4 Paper Roll Supply Device
1.5 Paper Specifications
1.6 Printable Area
1.7 Printing and Cutting Positions
1.8 Internal Buffer
1.9 Electrical Characteristics
1.10 EMI and Safety Standards Applied
1.11 Reliability
1.12 Environmental Conditions
2. Configuration
2.1 Interface
2.1.1 RS-232 serial interface
2.1.2 Specifications
2.1.3 Switching between on-line and off-line
2.1.4 Interface connector terminal assignments and signal functions
2.1.5 Serial interface connection example
2.1.6 Centronics parallel interface
2.1.7 Interface Connector
2.1.8 Parallel Interface
2.1.9 Data Receiving Timing(Compatibility Mode)
3. Connectors

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TITLE : WTP-100 Document : 010608C
Revision : 01
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3.1 Interface Connectors
3.2 Electrical Characteristics
3.3 Drawer kick-out Connector (Modular Connector)
◈ Control Command Summary
1. General Specifications
1.1 Printing Specifications
1) Printing method: Thermal line printing
2) Dot density: 203dpi × 180dpi. The number of dots per
25.4mm(1")
3) Printing direction: Unidirectional with friction feed
4) Printing width: 72mm(2.83"), 576 dot positions
5) Characters per line(default): Font A: 46
Font B: 61
6) Printed dot dimension: 0.11mm °0.13mm
7) Printing speed: High speed mode:
30.7lines/second maximum
(1/6inch feed) (at 24V, 20℃)
Approximately 130mm/sec maximum
(approximately 5.11inchs/sec maximum)
NOTE: Speeds are switched depending on the applied voltage to the printer and
head temperature conditions automatically.
NOTE: There may be variations in printing after switching the mode of the
printing speed. To prevent this for logo printing with ESC* command, using a
downloaded bit image is recommended. Change in printing speed does not
occur during down loaded bit image printing.
8) Paper feed speed: Approximately 150mm/second
(approximately 5.9 inches/second)
(continuous paper feeding)
9) Line spacing (default): 1/6 inch (4.23mm)
Programmable by control command.

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TITLE : WTP-100 Document : 010608C
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1.2 Character Specifications
1) Number of characters: Alphanumeric characters: 95
Extended graphics 128 × 7 pages
(including one space page)
International characters: 32
① English
② Hangul
③ Chinese (GB2312)
2) Character structure: Font A: 12 ⅹ 24
Font B: 9 ⅹ 24
Hangul,GB: 24 ⅹ 24
Font A is selected as the default
3) Character size:
Standard Double-height Double-width Double-width /
Double-height
W ⅹ
H(mm) CPL W ⅹ H(mm) CPL W ⅹ H(mm) CPL W ⅹ H(mm) CPL
FontA 12ⅹ24 1.25ⅹ
3.39 46 1.25ⅹ 6.77 42 2.5ⅹ 3.39 23 2.5ⅹ 6.77 23
FontB 9ⅹ24 0.875ⅹ
3.39 61 0.875ⅹ 6.77 61 1.75ⅹ 3.39 30 1.75ⅹ 6.77 30
Hangul, GB
24ⅹ24 3ⅹ 3.39 23 3ⅹ6.77 23 6ⅹ3.39 11 6ⅹ6.77 11
Space between characters is not included.
CPL = Characters per line
1.3 Auto Cutter
Partial cut: Cutting with one point center uncut
NOTE: To prevent dot displacement, after cutting, paper must be fed

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TITLE : WTP-100 Document : 010608C
Revision : 01
06/ 08/ 2001
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approximately 1mm(14/360 inches) or more before printing.
1.4 Paper Roll Supply Device
1) Supply method: Drop-in paper roll
2) Near-end sensor:
a) Detection method: Microswitch
b) Paper roll spool diameter: Inside: 12mm(.47″ )
Outside: 18mm(.71″)
c) Near-end adjustment: Adjusting screw
d) Remaining amount: Fixed position #1 (approximately
23mm(0.9″ )) #2 (approximately
27mm(1.06″ ))
NOTE: You can use a command to stop printing upon detection of a
paper near-end.
1.5 Paper Specification
1) Paper type: Specified thermal paper
2) Form: Paper roll
3) Paper width: 79.5 ± 0.5mm(3.13"±0.02")
4) Paper roll size: Roll diameter: Maximum 83mm
Take-up paper roll width: 80 ± 0.5, 1.0mm(3.15"±
0.020", 0.04")
5) Paper roll spool diameter: Inside: 12mm(.47")
Outside: 18mm(.71")
NOTE: Paper must not be pasted to the paper roll spool.
1.6 Printable Area
1) Paper roll
The printable area of a paper with width of 79.5± 0.5mm(3.13"±0.02") is
72.2 ± 0.2mm(2.84"±0.008")(576dots) and the space on the right and left
sides are approximately 3.7 ± 2mm(0.15"±0.079").
a=79.5±0.5mm(3.13"±0.02")
a b=0.125mm±0.05mm(.056"±.002")
c=69mm±0.2mm(2.84±.008")
b d=3.7±0.2mm(0.15"±0.079")
□□ □ ……………□□ e=3.7±0.2mm(0.15"±0.079")
c [All the numeric values are typical.]
d e
< Figure 1.1 Paper Roll Printable Area >

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TITLE : WTP-100 Document : 010608C
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1.7 Printing and Cutting Positions
Manual-cutter position
Auto-cutter blade position
Center of the print dotline
< Figure 1.2 Printing and Cutting Positions >
NOTE: Numeric values used here are typical values; the values may vary slightly
as a result of paper slack or variations in the paper. Take the notice into account
when setting the cutting position of the auto-cutter.
1.8 Internal Buffer
1) Receive buffer: 8kbyte
1.9 Electrical Characteristics
1) Supply voltage: +24 VDC ± 7%
2) Current consumption (at 24V):
Operating: Approx. 1.5A(at ASCII Printing)
Peak: Approx. 10A(at print duty 100%, For 10
seconds or less)
Stand-by: Approx. 0.15A
1.10 EMI and Safety Standards Applied
1) Europe: EMI – EN55022 CLASS A
EMS – EN61000-3-2
EN61000-3-3
EN50082-1
Safety Standard: EN60950
2) North America: EMI - FCC Part#15 Class A
Safety Standards- UL(1950), c-UL(No.950)
1.11 Reliability
1) MCBF: 60 million lines
(based on an average printing rate of 12.5% with paper

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thickness in the range 65 ㎛ to 75 ㎛).
25 million lines
(based on an average printing rate of 12.5% with paper
thickness in the range 76 ㎛ to 150 ㎛)
2) Cutter Life: 3.0 million cuttings
(if the paper thickness is between 65 and 100 ㎛)
1.12 Environmental Conditions
1) Temperature: Operating: 5° to 45°C (41° to 113°F)
Storage: -10° to 50°C (14° to 122°F)
(except for paper)
2) Humidity: Operating: 10 to 90%RH
Storage: 10 to 90%RH (except for paper)
[RH]
90
80
60
Relative humidity
40 Operating environment
range
20
10
0 0 10 20 30 40 50
Ambient temperature [°C]
< Figure 1.3 Operating Temperature and Humidity Range >

TECHNICAL MANUAL
TITLE : WTP-100 Document : 010608C
Revision : 01
06/ 08/ 2001
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2. Configuration
2.1 Interface
2.1.1 RS-232 serial interface
2.1.2 Specifications
Data transmission: Serial
Synchronization: Asynchronous
Handshaking: DTR/DSR or XON/XOFF control
Signal levels: MARK= -3 to – 15V: Logic “ 1”
SPACE= +3 to +15V: Logic “ 0”
Baud rage: 4800, 9600, 19200, 38400 bps
Data word length: 7 or 8 bits
Parity Settings: None, even, odd
Stop bits: 1 or more
Connector (printer side): Female DSUB-25 pin connector
NOTE: The data word length, baud rate, and parity depend on the
DIPswitch settings.
2.1.3 Switching between on-line and off-line

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The printer does not have an on-line/off-line switch.
The printer goes off-line:
• Between when the power is turned on (including reset using the
interface) and when the printer is ready to receive data.
• During the self-test.
•When the cover is open.
• During paper feeding using the paper feed button.
• When the printer stops printing due to a paper-end (in cases when
an empty paper supply is detected by either paper roll end detector
or the paper roll near-end detector with a printing halt feature by
ESC c4).
• During macro executing stand by status.
• When a temporary abnormality occurs in the power supply voltage.
• When an error has occurred.
2.1.4 Interface connector terminal assignments and signal functions
2.1.5 Serial interface connection example
Host side Printer side
TXD ………………………………… RXD
DSR ………………………………… DTR
RXD ………………………………… TXD
DTR ………………………………… DSR
FG ………………………………… FG
SG ………………………………… SG
NOTES: ◦ Set the handshaking so that the transmit data can be
received.
◦ Transmit data to the printer after turning on the power and
initializing the printer.
PIN SIGNAL I/O DESCRIPTION
2 TXD - Printer transmit data line RS-232C level
3 RXD - Printer receive data line RS-232C level
4, 20 DTR Output Printer handshake to host line RS-232C level
6 DSR Input Data Send Ready
1,7 GND - System Ground

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TITLE : WTP-100 Document : 010608C
Revision : 01
06/ 08/ 2001
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< Figure 2.1 Serial transmission bit frame >
< Figure 2.2 Line transmission with protocol >
2.1.6 Centronics parallel interface
1 Bi
t
7 or 8
Bit
N
one o
r
1 Bit
1 or 2
Bit

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Revision : 01
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2.1.7 Interface Connector
<D-SUB 25 Female Serial Port> <D-SUB Centronics
Parallel Port>
PIN SIGNAL I/O DESCRIPTION
1 STROBE- Input Synchronize signal Data received
2-9 DATA0-7 Input Data bit Transmitted 0-7
10 ACK- Output Data receiving competed
11 BUSY Output Impossible to printer data receiving
12 PE Output Paper empty
13 SELECT Output Printer’ s status for ON/OFF line
14 AUTO FEED- Input ND
15 NC -
16 GROUND - System Ground
17 CHASSIS GND - System Ground
18 LOGIC-H - +5V
19-30 GROUND - System Ground
31 INIT- Input Initialize
32 ERROR- Output Printer Error
33 GROUND - System Ground
34 NC -
35 +5V - +5V
36 SELECT IN- Input ND

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TITLE : WTP-100 Document : 010608C
Revision : 01
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2.1.8 Parallel Interface
1) Specifications
Data transmission: 8-bit parallel
Synchronization: STROBE pulse supplied by host computer.
Handshaking: ACK and BUSY
Connector: D-SUB 25(male) or equivalent
DATA Data n Data n+1
THold-1
nStrobe
tSetup tSTB tHold-2
Busy Peripheral Busy
tReady tBUSY
nAck
tReply tACK tnBUSY
tNext
2.1.9 Data Receiving Timing (Compatibility Mode)
Specifications
Characteristics Symbol Min [ns] Max [ns]
Data Hold Time (host) tHold-1 -- 500
Data Hold Time (printer) tHold-2 -- --
Data Setup Time tSetup -- 500
STROBE Pulse Width tSTB -- 500
READY Cycle Idle Time tReady -- --
BUSY Output Delay Time tBUSY 0 500
Data Processing Time tReply 0 ∞
ACKNLG Pulse Width tACK 500 10 ㎲
BUSY Release Time tnBUSY 0 ∞
ACK Cycle Idle Time tNEXT -- 0
*The printer latches data at a nStrobe ↓timing

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TITLE : WTP-100 Document : 010608C
Revision : 01
06/ 08/ 2001
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3. Connectors
3.1 Interface Connectors
Refer to Section 2.1, Interface
3.2 Electrical Characteristics
1) Input Voltage: DC 24V ± 10%
2) Current Consumption: Operating: Approx. 1.5 A (at ASC∥ printing)
Peak: Approx. 10 A (at print duty 100%, For 10 seconds or
less)
Stand-by: Approx. 0.15 A
3) Power Connector

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TITLE : WTP-100 Document : 010608C
Revision : 01
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3.3 Drawer Kick-out Connector (Modular Connector)
The pulse specified by ESC p or DLE DC4 is output to this connector.
The host can confirm the status of the input signal by using the
DLE EOT, GS a, or GS r commands.
1) Pin assignments: Refer to Table 2.2.2
2) Connector model:
Printer side: DAEEUN DEK-623PCB-6-B or Equivalent
User side: 6-position 6-contact (RJ12telephone jack)
< Drawer Kick-out Connector Pin Assignments >
Pin Number Signal Name Direction
1 Frame GND -
2 Drawer kick-out drive signal 1 Output
3 Drawer open/close signal Input
4 +24V -
5 Drawer kick-out drive signal 2 Output
6 Signal GND -
+24V is output through pin 4 when the power is turned on. However, pin 4 must
by used only for the drawer.
< Figure 3.1 Drawer Kick-out Connector >
3) Drawer kick-out drive signal
Output signal: Output voltage: Approximately 24V
Output current: 1A or less
CAUTION: To avoid an overcurrent, the resistance of the drawer kick-out
solenoid must be 24 Ω or more.
Output waveform: Outputs the waveforms in Figure 3.2 to the points A and B

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in Figure 3.3
t 1 (ON time) and t 2 (OFF time) are specified by ESC p or
DLE DC4.
t1 x 2ms : t2 x 2ms
< Figure 3.2 Drawer Kick-out Drive Signal Output Waveform >
4) Drawer open/close signal
Input signal level (connector pin 3): “L”= 0 to 0.8V
“H”= 3 to 5V
< Figure 3.3 Drawer Circuitry >

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NOTE: 1. Use a shielded cable for the drawer connector cable.
2. Two driver transistors cannot be energized simultaneously.
3. The drawer drive duty must by as shown below.
ON time
≤ 0.2
(ON time + OFF time)
4. Be sure to use the printer power supply (connector pin 4) for the drawer
power source.
5. The resistance of the drawer kick-out solenoid must not be less than the
specified. Otherwise, an overcurrent could damage the solenoid.
6. Do not connect telecommunication network to the drawer kick-out
connector.
Control command summary
No. Command Function
1 HT Horizontal tab
2 LF Print and line feed
3 CR Print and carriage return
4 FF Print end position label to start printing
5 CAN Cancel print data in page mode
6 DLE EOT Real-time status transmission
7 DLE ENQ Real-time request to printer
8 DLE DC4 Generate pulse at real-time
9 ESC FF Print data in page mode
10 ESC SP Set character right-side spacing
11 ESC ! Set print mode
12 ESC $ Select/cancel user-defined character set
13 ESC % Define user-defined characters
14 ESC & Turn underline mode on/off
15 ESC * Set bit image mode
16 ESC - Turn underline mode on/off
17 ESC 2 Set 1/6 inch line spacing
18 ESC 3 Set line spacing using minimum units
19 ESC = Select peripheral device
20 ESC ? Cancel user-defined characters
21 ESC @ Initialize printer
22 ESC D Set horizontal tab positions
23 ESC E Select emphasized mode
24 ESC G Select double-strike mode
25 ESC J Print end feed paper using minimum units
26 ESC L Select page mode

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27 ESC M Select character font
28 ESC R Select international character set
29 ESC S Select standard mode
30 ESC T Select print direction in page mode
31 ESC V Set/cancel 90° cw rotated character
32 ESC W Set printing area in page mode
33 ESC ₩ Set relative position
34 ESC a Align position
35 ESC c 3 Select paper sensor(s) to output paper-end signals
36 ESC c 4 Select paper sensor(s) to stop printing
37 ESC c 5 Enable/disable panel buttons
38 ESC d Print and feed paper n lines
39 ESC p General pulse
40 ESC t Select character code table
41 ESC { Set/cancel upside-down character printing
42 GS ! Select character size
43 GS $ Set absolute vertical print position in page mode
44 GS * Define downloaded bit image
45 GS / Print down-loaded bit image
46 GS : Start/end macro definition
47 GS B Turn white/black reverse printing mode on/off
48 GS H Select printing position of HRI characters
49 GS I Transmit printer ID
50 GS L Set left margin
51 GS P Set horizontal and vertical motion units
52 GS V Cut paper
53 GS W Set printing area width
54 GS ₩ Set relative vertical print position in page mode
55 GS ^ Execute macro
56 GS a Enable/disable Automatic Status Back(ASB)
57 GS b Turn smooting mode on/off
58 GS f Select font for HRI characters
59 GS h Set bar code height
60 GS k Print bar code
61 GS r Transmit status
62 GS v 0 Print raster bit image
63 GS w Set bar code width
< Add >
1 ESC I Full cut
2 ESC m Partial cut

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‘ Command Descriptions
Command Notation
[Name] The name of the control command.
[Format]
The code sequence.
In this description, < > H denotes hexadecimal numbers, < >denotes
decimal numbers and < > B denotes binary numbers.
[ ] k indicates the contents of the [ ] should be repeated k times.
[Range] The allowable range for the arguments.
[Description] Description of the command function.
[Notes]
If necessary provides important information on setting and using the
printer command.
[Default] The default values for the commands.
[Reference] List related commands.
[Example] Example of using the commands.

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The numbers denoted by <>H is hexadecimal.
The numbers denoted by <>B is binary.
Print Commands
The ADP series supports the following commands for printing characters and advancing
paper.
HT
[Name] Horizontal tab
[Format] ASCII HT
Hex 09
Decimal 9
[Description] Moves the print position to the next tab position.
This command is ignored unless the next tab position has been set.
[Notes] Horizontal tab positions are set using “ ESC D” .
If this command is received when the printing position is at [printing
area width +1], the printer executes print buffer-full printing of the
current line and horizontal tab processing from the beginning of the next
line.
[Reference] ESC D