SPRT SP-L31 User manual

SPRT®
SP-L31
Portable Thermal Printer
User’s Manual
( ver 1.03)
Beijing Spirit Technology Development Co., Ltd
www.sprt-printer.com
1

CONTENTS
NOTICE........................................................................................................................ 1
Notice of Safety.................................................................................................... 1
Notice of Using..................................................................................................... 1
Notice of Storing................................................................................................... 2
Chapter 1 Outer Appearance and Model No.......................................................... 3
1.1 Outer Appearance................................................................................................ 3
1.2 Model No................................................................................................................3
Chapter 2 Characteristic Specification.....................................................................5
2.1 Printing Specification........................................................................................... 5
2.2 Other Specification............................................................................................... 6
Chapter 3 Operation Method.............................................................................. 7
3.1 Using Preparation................................................................................................. 7
3.1.1 Battery Installation......................................................................................7
3.1.2 Paper Roll Installation................................................................................8
3.1.3 Others.......................................................................................................... 9
3.2 Basic function usage............................................................................................ 9
3.2.1 Switch On.................................................................................................... 9
3.2.2 Switch Off.................................................................................................. 10
3.2.3 Paper Feeding (Manual Feeding)..........................................................10
3.2.4 Self-Test.................................................................................................... 11
3.2.5 Hexadecimal Printing.............................................................................. 11
3.2.6 Printer Parameters Setting..................................................................... 11
3.2.7 Battery Charging...................................................................................... 12
3.2.8 Enter Into Upgrade Mode....................................................................... 13
3.3 Printer Parameters Setting............................................................................... 13
3.4 Printer Interface Connection and Printing...................................................... 13
3.4.1 USB Connection.......................................................................................13
3.4.2 Bluetooth Connection.............................................................................. 14
3.5 Buzzer.................................................................................................................. 15
3.6 LCD indication.....................................................................................................15
Chapter 4 Other Information................................................................................... 17
4.1 Command Programming Manual.....................................................................17
4.2 Description of Black Mark Pre-print.................................................................17
Appendix A.................................................................................................................19
Appendix B.................................................................................................................22

1
NOTICE
Please read this manual carefully before using the printer!
Notice of Safety
Be sure to use the specified battery and power supply provided by our
company. Otherwise it may cause fire, explosion or damage printer,
meanwhile, the battery also may be damaged.
Don’t put battery into the fire, don’t disassemble or heat the battery, don’t be
short circuit, it may cause fire, explosion or damage printer, meanwhile, the
battery also may be damaged.
If the printer would not be used for a long time, be sure to take off the battery,
otherwise the battery may leak liquid which is corrosive liquid, if improper
operation causes battery leak liquid, and it paste in the skin or clothes, please
rinse it by clean water, if paste in the eyes, please rinse them thoroughly by
clean water and see a doctor. Please do not open the paper case cover when
it is printing or just when printing is finished, do not touch the printer head with
hand or body, overheat may cause scald.
Notice of Using
Pls do not print more than 1 meter receipt,or will cause damage to printer
head .
Water or other liquid should not be spilled into the printer, also the printer
should not be appeared in the rain, or else may cause printer damage. Please
do not open the paper case cover when it is printing, otherwise the printer may
work improperly. If printer is using USB connection to work, should not unplug
the USB cable, or else some printing data may be lost. When printer is using
bluetooth connection to work, the distance of communication should be within
10 meters, otherwise the printer doesn’t print or prints rubbish codes. Too high
（50℃）or too low（5℃） environment temperature and too high (85％) or too
low (20％) environment humidity both effect the printing quality. The printer
paper roll with poor quality or stored for too long time also may reduce the
printing quality even damage the printer. Under the black mark detecting mode,
the printer requires that the pre-printed black mark is accordant with the
printing rule of black mark (please refer to details in Chapter 4.2), otherwise
the black mark can not be detected correctly. Be sure to use up the power of
the battery before charge up it,as it can ensure the using life of the battery.
Notice of Storing
The printer should be placed in such an environment that the temperature is

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between-20℃and 60℃, and the relative humidity is between 10% and 95%. If
the printer will be stored for a long time, please be sure to take out the battery,
otherwise may damage the battery and printer.
Statement
This is a Class A product, which may cause radio interference in the living environment. In this
case, users may need to take practical measures to interfere with it.

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Chapter 1 Outer Appearance and Model No
1.1 Outer Appearance
[CHARGE]: Battery Charging Indicator [ERROR]: Error
Indicator
[FEED]: Feed Button [MODE]: Mode Button
1.2 Model No.
SP-L31/SP-L31BT4/SP-L31BTDM Support USB and Bluetooth Interface as
default

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Chapter 2 Characteristic Specification
2.1 Printing Specification
Printing Method: Thermal line
Paper Width: 79.5mm±0.5mm，57.5±0.5mm，44±0.5mm
Effective Printing Width: 72mm，48mm，37.5mm；
Resolution: 8dots/mm(203dpi)
Dots in each line: 79.5mm: 576dots/line
57.5mm: 384dots/line
44mm: 300dots/line
Printing Speed: 80mm/s (thermal paper), 67mm/s (label paper)
Paper Thickness: 0.06mm~0.08mm(thermal paper) and 0.06-0.15mm (label
paper)
Printable Content:
Character set: GB18030(Chinese) BIG5(traditional Chinese),
GB12345(traditional Chinese), Shift+JIS(Japanese), ASCII, Self-defined
character and figure
Barcode:
1D:UPCA,UPCE,EAN13,EAN8,CODE39,ITF25,CODABAR,CODE93,CODE
128
2D: PDF417,QR CODE,DATA Matrix
2.2 Physical Parameters
Dimension (W×L×H): 105(L) X109(W) X51(H) mm
Physical Weight: 360g (excluding roll paper)
Paper Width: 80mm, 58mm and 44mm
Paper Roll Diameter: Max 40.0mm
Interface: USB, Bluetooth
Printing Head Life: 50km
2.3 Environmental Parameters
Operating Temp: 0℃~50℃
Operating Humidity: 10%~80%
Storage Temp: -20℃~60℃
Storage Humidity: 10%~90%
2.4 Other Specification
● Paper Loading Method: Easy Paper Loading
● Paper Tear: Manual Paper Tear
● Black Mark Location: available(details please see 4.2 pre-printed black mark
manual).
● Printing Control Command: ESC/POS compatible command set, CPCL

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command set,
(Refer to<SP-L31 Printer Command Program Manual >for details).
● Power Supply: 7.4V/1400mAh rechargeable polymer lithium battery.
● Low Power Alarm: When the electric of battery will run out, the battery icon
on the printer screen will flash.
● Auto-sleeping: the printer will fall into sleep after in 5 seconds without
button operation or receiving data , and can be awaken by
pressing 【FEED】button, 【MODE】button or sending data to it.
● Battery Charging: quick charging, it will be fully charged about 2 hours;
● Battery Duration: under 25% printing density, more than 200 meters; the
standby time is over 4days. (These parameters are just for reference. Long
term usage will cause the capacity decline, and can not ensure the time of
printing.)
Chapter 3 Operation Method
3.1 Using Preparation
3.1.1 Battery Installation
1. Put the battery into the battery slot from the side with pins and press the
other side into case. (as below Pic.)
3.1.2 Paper Roll Installation
1. Hold both sides of the paper case cover, and open it. (Pic.1)
2. Pay attention to use paper that effective printing side is outside in the

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printing paper face when you install the new paper roll. (Pic.2)
3. Pull out a part of paper and put them in the middle of the paper out orifice.
(The end of paper is beyond the tear cutter.)
4. Shut down paper case cover and cut off the redundant paper
5. Use the Optional Paper Holder (80mm/58mm/44mm), put paper roll with
different width into the holder accordingly. (Pic. 3)
6. Repeat Steps 3~4.
（Pic.1） （Pic.2） （Pic.3）
3.1.3 Others
Open and close the door instruction: When closing the door, insure to close
right and left side at the same time.
Abnormal operation instructions: Paper blocking is not allowed at the outlet.
Placement direction: Hand-held flat printing when printing, to ensure the
stability of the paper roll as far as possible.
3.2 Basic function usage
Printing Mode: Standard Mode and Logistics Mode.
Paper Type: Thermal paper, Black mark paper and Label paper.
Logistics Mode: Way Bill online mode, Receipt online mode, Invoice online
mode. Label paper ( 79.5mm width ) as default under Way bill mode. Receipt

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paper ( 58mm width ) as default under Receipt mode. Black mark paper
( 44mm width ) as default under Invoice model.
Standard Mode: Standard 80mm mode, Standard 58mm mode, Standard
44mm mode. Standard thermal paper as default under Standard mode.
Set the Printing mode and Paper type by Setting Tool (Way Bill mode and
Invoice mode)
3.2.1 Switch On
Press【POWER】button about 1 second later you will hear ‘one low one
high ’prompt tone. The LCD shows “Loading...”, then the printer turns into work
mode when loosen the【POWER】button. The LCD shows printer parameter.
3.2.2 Switch Off
Under status of switch on,the printer will send out the prompt tone of ‘one low
one high ’ after pressed the【POWER】button for 1 second, the LCD turns off,
then loosen the【POWER】button, the printer is off.
3.2.3 Paper Feeding (Manual Feeding)
A. Standard Mode:
Under the normal work status and apply to thermal receipt paper, press
【FEED】button, the paper feeding begins, and stop when loosen 【FEED】
button. When the printer apply to black mark paper and label paper, press
【FEED】
button, the printer begins to feed paper and stops over the position of
black mark/label spacing. If the paper is not the black mark/ label paper, the
printer stops automatically after feeds paper for 30cm. And alarm the error of
paper end for label paper.
B. Logistics Mode:
Under the normal work status and apply to receipt, press【FEED】button, the
paper feeding begins, and stop when loosen【FEED】button. When the printer
apply to invoice and waybill, press【FEED】button, the printer begins to feed
paper and stops over the position of black mark/label spacing. If the paper is
not the black mark/ label paper, the printer stops automatically after feeds
paper for 26cm. And alarm the error of paper end for waybill.
3.2.4 Self-Test
After receiving the printer, user can check its current setting and status at
anytime.
Self-test way is as below: Power off, then hold down the 【FEED】button and
press the power button at the same time. Then loosen the【FEED】button when
you hear ‘one low one high ’prompt tone and LCD shows “Loading...”, the

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current setting and status will be printed out.
3.2.5 Hexadecimal Printing
The function of hexadecimal printing is to print the information received from
host machine by hexadecimal numbers and corresponding characters. It will
be convenient to debug application.
Into hexadecimal printing: Power off, hold down the
【MODE】
button and press
the power button at the same time. Then loosen the power button and press
the【FEED】button when you hear ‘one low one high’ prompt tone of power on
and LCD shows “Loading...". After that you may loosen the 【MODE】button
and【FEED】button. The printer turns into the hexadecimal printing mode and
print the presentation.
Quit hexadecimal printing :The way to quit hexadecimal printing mode is
switch off the printer or press the 【FEED】button for three times. The printer
will also print the presentation which shows that the printer have quit
hexadecimal printing mode.
3.2.6 Printer Parameters Setting
This function may set some simple printing parameters. There’re two methods
of entering into parameter setting mode, which can set different parameters.
A. Under the state of power off, hold down the 【FEED】button and press the
【POWER】button at the same time. Then loosen the【POWER】button and
【MODE】button orderly when you hear ‘one low one high prompt tone and
LCD shows “Loading...”. The printer turns into the parameters setting mode.
Press the 【FEED】button or【MODE】button, LCD shows the first item which
can be set parameters and the current numerical value. (Refer to Appendix
A.)
Quitting parameter setting: Hold down【MODE】and【FEED】buttons, then
loosen 【MODE】button and 【FEED】button. Saving the set parameter and
exiting the parameter setting mode. The setting parameters won’t be saved if
you directly press the 【POWER】button to turn off the printer.
B. Under the state of standby power, press the【MODE】button to enter the
parameter setting mode. Use the【MODE】button to select the setting
parameter item, and use the 【FEED】button to select the sub-menu of
parameter item.(Refer to Appendix B.)
Wait for 5 min. to save parameters value automatically.

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3.2.7 Battery Charging
The battery will run out after a period of usage. When it nearly runs out, printer
will give a alarm through the battery indicator flashing on LCD, at this time,
user needs to charge up the battery
The charging method is as following: connecting the adapter to the power
socket with 220V, 50HZ, then plug the power charging plug to the power
socket of the printer, so the power charging begins. During the course of
power charging, the charging indicator【CHARGE】goes red, and【CHARGE】
turns to blue when the charging is full. Please don’t use printer when it’s
charging.
3.2.8 Enter Into Upgrade Mode
In the shutdown state, press the [MODE] key and [FEED] key at the same time,
press the [power] key. When hearing the `one low one High'boot prompt sound,
quickly release the pressed button, and the printer enters the program upgrade
mode. At this time, LCD display upgrade mode.
Note: Only USB interface supports online program upgrade.
3.3 Printer Parameters Setting
Users can set more parameters by using the specified〈SP-L31 Setting Tools〉
software through computer. The setting includes: language、font、printing
density、default code page、Bluetooth device name and password, printing
mode etc. The setting method please refer to the <SP-L31Setting Tools
Software Help>, offered with the software together.
3.4 Printer Interface Connection and Printing
3.4.1 USB Connection
The SP-L31 printer of standard accessories includes Mini USB cable which
connects printer and main device. The USB type belongs to the slave device
type. Pins description of Mini-USB as below:

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Pin
Function
Notes
1
V Bus
Power +5V
2
Data-
3
Data+
4
Blank
5
GND
Ground
3.4.2 Bluetooth Connection
The devices, such as Hand-held device, laptop and other information terminal
devices with Bluetooth can drive SP-L31 to print by the Bluetooth interface.
SP-L31 portable printer is compatible with Bluetooth2.0 standard and dual
Bluetooth( IOS Bluetooth 4.0 and Android Bluetooth 2.0) . Power class is
CLASS 2, effective communication distance is 10meters. The Bluetooth of the
printer belongs to the slave device. The initial name of the printer is SP-L31 BT
Printer, the initial password is ‘1234’; users can change the printer name and
password by using<SP-L31 Setting Tools> software. Please see the details in
help file of <SP-L31 Setting Tools>.
Before working, SP-L31 Portable Thermal Printer need to be pairing with
primary device，matching begins with the host device. Usual matching course
is as below:
1. Switch on printer;
2. Host device searches for the outer Bluetooth device;
3. If there are other Bluetooth devices, please select SP-L31 Printer;
4. Enter the password ‘1234’;
5. Pairing finished.
Please see details in primary device Bluetooth function instruction for
reference.
Notice:
1, When pairing, please make SP-L31 BT switch on.
2. Once SP-L31 has paired with the host successful, it can’t be paired with

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other Bluetooth device until it unconnected with the host.
3, The power indicator flashing after paired successful. Printer LCD shows the
connection state.
3.5 Buzzer
There is also a buzzer to indicate various status of the printer. The meanings
are as below:
One low one high: power on;
One high one low: power off;
Circulation continuous two lows: printer at mistakes status
3.6 LCD indication
Turn on the printer, the LCD shows “Loading...”, and shows the relevant
information after printer initialization. If printer didn’t receive any data or
connect with any device within 5 min., the display will turn off showing
automatically. But it’ll show again until printer receive data or connect with
device.
Logistics mode:
①When the icon is , it means there’s no Bluetooth connection; When the
icon is , it means the Bluetooth is on connecting state.
②It shows the different printing modes, waybill online model, receipt online
mode, and invoice online mode.
③The current capacity level of printer battery icon. The different icons
shows the current battery level. When it comes to low battery
level and need to charge, it’ll become to show this icon with flickering
④Printer current state is showed by text.

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It shows running when the printer working normally.
It shows printing when the printer received data.
It shows paper end, abnormal temperature, abnormal volage or cover open
alarm according to the printer working errors when printer work.
B. Standard mode:
①When the icon is , it means there’s no Bluetooth connection; When the
icon is , it means the Bluetooth is on connecting state.
②It shows the different paper type, 80mm, 58mm and 44mm.
③The current capacity level of printer battery icon. The different icons
shows the current battery level. When it comes to low battery
level and need to charge, it’ll become to show this icon with flickering
④Printer current state is showed by text.
It shows USB connected when the printer connect with main device via
USB.
It shows USB communicating when the printer received data via USB
connection.
It shows Bluetooth connected when the printer connect with main device via
Bluetooth and open the COM port.
It shows USB and Bluetooth connected when the printer connect with main
device via both Bluetooth and USB.
It shows Bluetooth communicating when the printer received data via
Bluetooth connection.
Chapter 4 Other Information
4.1 Command Programming Manual
<SP-L31 Technical Manual> is a technical manual for engineer to develop
printer utility, and users can claim our company for it.

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4.2 Description of Black Mark Pre-print
If user use pre-print black mark to locate the receipt, please be sure to abide
by the following black mark pre-print regulation when print the black mark
paper, if not ,it will cause that the printer can not identify the black mark.
The black mark pre-print regulations are as below:
Printing Position: As the picture above, the black mark should be printed on
the right or left edge of the side of words.
Width range: width≥7mm
Height range: 4mm≤height≤6mm
Reflectivity of infrared ray : <10% (infrared ray reflectivity of other parts of the
black mark paper is>65%)
HPS: it is the distance between edges of black mark and loading position.
4.5mm≤Hps≤6.5mm

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Appendix A
Setting introduction:
【MODE】
button is “set” button， when press it once , the set
become the next one and it will print the present set value;【FEED】button to
set the set value, when press it once , the set become the next one and it will
print the present set value.
After setting, press【MODE】and【FEED】button togethrer, it’ll save the current
value, and printer enters into normal operation state. Or it won’t save the
value.
General Setting:
Language Setting:

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Font
Setting:
Paper sensor sensitivity Setting:
80mm/58mm/44mm Paper Type Setting:
Black Mark Location Setting:
Power off Setting:
Printing Direction Setting:

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Appendix B
Setting introduction:
【MODE】
button is SET button, when press it once, the set
become the next one and it will print the present set value;【FEED】button to
set the set value, when press it once , the set become the next one and it will
print the present set value.
After setting, it’ll quick the Setting mode automatically and save the current
value after 5 min.
General Setting:
Language Setting:
Density Setting:
Visible Bluetooth Setting:

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Label Sensor Setting:
Put the 80mm label paper directly into printer under Logistics mode ( set as
label paper under Standard mode) . Press【MODE】, adjust the setting items
to label sensor setting, then press 【FEED】, the printer will feed paper by
260mm, and print out the self-test paper for max power voltage, min voltage,
set threshold voltage and the voltage difference between the max and min
voltage. It’ll save the value after 5min.
Black Mark Sensor Setting:
Put the 44mm black mark paper directly into printer under Logistics mode ( set
as black mark paper under Standard mode) . .Press【MODE】, adjust the
setting items to black mark sensor setting, then press 【FEED】 , the printer will
feed paper by 260mm, and print out the self-test paper for max power voltage,
min voltage, set threshold voltage and the voltage difference between the
max and min voltage. It’ll save the value after 5min.