Infinite Peripherals DPP-450 User manual

DPP—450 Printer
User Manual
ESC/POS Mobile Printer

DPP-450 User Manual
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Contact Information
Mobility Sales/ Technical Support Center
Infinite Peripherals, Inc.
17681 Mitchell N
Irvine, CA 92614
Toll-Free: [phone]
Office: [phone]
Website: ipcmobile.com
Headquarters/ Main Warehouse
Infinite Peripherals, Inc.
2312 Touhy Avenue
Elk Grove Village, IL 60007
Toll-Free: [phone]
Office: [phone]
Fax: [phone]
Legal Notice
“Made for iPhone” (MFi) means that an electronic accessory has been designed to connect specifically to the iPhone and has been
certified by the developer to meet Apple performance standards. Apple is not responsible for the operation of this device or its
compliance with safety and regulatory standards. Please note that the use of this accessory with an iPhone may affect wireless
performance.
Trademarks
Infinite Peripherals, Mobilize Your Enterprise, Linea Pro, Infinea Tab, and Infinea Omni are trademarks of Infinite Peripherals, Inc. All
other trademarks are the property of their respective owners.
iPad®, iPhone® and iPod touch® are trademarks of Apple®, Inc registered in the U.S. and other countries. Windows® and Windows
Phone® are registered trademarks of Microsoft Corporation. Android is a trademark of Google, Inc. Bluetooth® text marks and logos are
registered trademarks of Bluetooth SIG, Inc. Any use of these marks by Apple is under license.

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Table of Contents
Contact Information 2
Legal Notice 2
Trademarks 2
Overview 4
Guidelines for Use 4
Environmental 4
Mechanical 4
Electrical 5
Operational 5
Technical Specifications 6
Box Contents 7
Getting Started 8
Developing Applications 8
Accessories 8
DPP-450 Printer Features 8
Product Overview 9
Charging Your DPP-450 11
Charging LED Status 11
Replacing the Battery 12
Battery Disposal 12
Using Your DPP-450 13
Installing Standard Paper Rolls 13
Installing Label Paper Rolls 13
Attach Belt Clip 14
Print Labels 14
Set-up Label Printing 14
Set-up the Hardware 15
Configuration Menu Options 15
Diagnostic Self-Test 15
Hex Dump Mode 15
Print Current Settings 16
Change Settings 16
Set Memory Switches 16
DIP Switch Location 17
Adjusting Print Density 17
DIP Switch Settings 17
Printer LEDs 18
Bluetooth Connectivity 18
Initial Set-up 18
Set-up iOS Device 18
Set-up Android 19
Wifi Specifications W Model 19
Resident Command Set 20
Resident Command Set 21
Troubleshooting 22
Servicing Your Printer 22
Product Returns & Servicing 23
Disclaimer 23
Warranty 23
Symbols 23
Federal Communications Commission 24

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Overview
With the DPP-450 mobile printer you can print data from your smart phone via Bluetooth. Before using the printer, ensure the battery is
fully charged.
Guidelines for Use
Environmental
To prevent printer failure and/or serious personal injury,
avoid using the mobile printer under these conditions:
• Anywhere the printer may be exposed to dust, moisture, or
direct sunlight/heat.
• Slanted surfaces or surfaces subject to shocks or vibrations.
• Temperatures exceeding 60 degrees C or less than -20 degrees
C, or with relative humidity of 85% or more.
• Areas subject to electromagnetic noise or corrosive gas.
• If condensation exists on the mobile head, turn the power off
until the condensation evaporates completely.
Mechanical
To prevent the heating elements and driver’s integrated
circuit (IC) from exposure to static electricity, use caution
when handling the mobile head.
To prevent damage and/or contamination, avoid the following:
• Touching the dot line on the mobile head/driver IC with metal,
sandpaper, or your ngers.
• Volatile chemicals, such as thinners or benzene for maintenance
work.
• Opening the paper during printing.
• Pulling the paper out of the printer forcibly when the printer
cover is closed.
• Loose paper or paper blocking exit tray may cause the paper to
jam.
Note
If the paper jams in the paper exit tray, turn off the power to
the printer.
• Do not attempt to disassemble or repair the printer, AC adapter,
or power cord yourself. Contact Innite Peripherals at
https://ipcmobile.com/support/support-form

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Operational
Use only specified paper or equivalent in your printer. Other
paper can reduce the life of the printer head and decrease
the printing quality. Store the paper in a cool, dry, and dark
location.
Note
Any substances with Sodium (Na+), Potassium (K=),
or chlorine (CI-) can reduce the life of the printer head
remarkably.
Ensure the paper is stored in a cool, dry, dark place. We
recommend you do not expose the paper to bright light for
extended periods of time, organic solvents, or vinyl chloride
film, erasers, or adhesive tapes. In addition, do not store the
paper in high temperature or humidity environments, damp
areas or areas with exposure to direct sunlight. If pasting
printed pages, only use water-based glue, that is starch glue,
synthetic glue, and so forth.
Important: Do Not
• Store the paper on diazo print paper or on wet, freshly made
paper copies.
• Handle the paper with wet hands or hard objects since it can
cause tears, ngerprints, or smudges.
• Expose the paper
* To bright light or extended periods of time.
* To organic solvents.
* To vinyl chloride lm erasers, or adhesive tapes.
• Store the paper
* In high temperatures, high humidity, damp areas.
Note
If the printer is used continuously under improper conditions
can lead to failure, fire, and/or electric shock. This may void
your warranty. If a fault condition continues, contact https://
ipcmobile.com/support
Electrical
Turn off the printer and disconnect the AC adapter from the
power outlet when/IF these happen:
• Smoke, odd smells, or unusual noises are emitted by the printer.
• Metallic objects are dropped, or any liquid is spilled inside the
printer.
• Printer is not in use.
Important: Do Not
• Connect or disconnect the AC adapter with wet hands as this
can result in electric shock, short circuit, and failure.
• Use any AC adapter or power cord or place heavy objects on
top of the printer as this may cause damage to the cord and/or
create a re or electric shock.
• Bend the power cord or place heavy objects on top of it as this
can cause damage the cord and/or cause re or electric shock.
• Drop any metallic objects or spill liquids such as coffee, water
into the printer.
• Do not touch the head as it is hot after printing. Ensure the
thermal head is cool before replacing the paper or cleaning the
printer head.
• Remove the cable or adapter from the connector or the
receptacle by gripping the connector or the plug. In addition,
never pull the cable itself since this may cause damage to the
cable and/or adapter.

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Technical Specifications
Printing
Printing Method Direct line thermal printing
Printing Speed 100mms/s maximum standard
62.5mm/s Peeler
DC7.4 printing ratio 12.%% Standard paper
Print Width 48mm/384 dots per line
Resolution 203 x 203dpi (8 x 8 dot/mm)
Dot Pitch Horizontal and vertical: 0.125mm (8 dots/mm)
Printable Font Sizes A: 48 characters per line
B: 64 characters per line
Loadable Font Sizes C: 48 characters per line
D: 48 characters per line
Logo Registration One black and white with 384 x 248 dots
Input Buffer 30 Kbytes
Resident Barcodes 1D: EAN13, EAN8, UPC-A, UPC-E, Code 39 /93/128, Codabar, 2 of 5 interleaved
2D: PDF417, QR Code
Emulation ESC/POS, Eltron, ZPL
Thermal Paper 25.4mm to 58mm +0/-1mm x 45mm diameter
60um thickness
Reliability Thermal head: 50 km/31 miles
Mechanism MCBF: 15,000,000 lines
Physical
Compatibility Apple iOS, Window O/S, Win CE, Window Mobile, Windows Phone 8.x, Android O/S
Dimensions L x W x H 88mm x 120mm x 64mm (3.46” x 4.72” x 2.52”)
Weight 420 grams (14.8 oz) with battery
Electrical
Battery Capacity User-replaceable, rechargeable Li-ion battery
7.4V / 110mAH
Battery Life ~3 hours charging time
~20,000 lines per fully charged battery
Power Supply AC adapter: DC 9V, 1A
AC 100-240V 13.A, 50/60 Hz
Connectivity Bluetooth MFi/SPP
mini USB 2.0 portRS232C port / maximum 115200b
(Optional) Bluetooth 2.0 class 2 SPP
(Optional) Bluetooth 3.0 class 2 SPP, iPod accessory protocol
(Optional) Wireless LAN 802.1b
Environmental
Operating Temperature
Relative Humidity
+10°C to +50°C (14°F to +122°F)
30% to 85%
Storage Temperature
Relative Humidity
-20°C to +60°C (-4°F to +140°F)
10% to 90%
Drop Rating 1.5m (4.92 feet)

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Box Contents
• Before using your DPP-450 printer, remove the printer and all included accessories from the shipping carton and verify the contents
against the packing list.
• Retain all packing materials, invoice, and bill of lading. This may be required to return the unit for servicing later, or to process a claim
with the shipping carrier.
• Inspect carefully the contents inside the box carefully for any signs of damage. Do not use if any sign of damage. Notify your Innite
Peripherals account executive or contact technical support at https://ipcmobile.com/support/technical-services
• Ensure the battery pack is fully charged before rst use.
DPP-450 Printer (1)
Belt Clip (1)
Power Supply (1)
Note
Box contents and SKUs vary based on your order configuration.
RS-232 Interface Cable (1)

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Getting Started
Refer to these sections to help you get the DPP-450
printer ready for use:
What to do Section
Charge the DPP-450
Lithium-ion battery pack
fully before first use.
Charging Your DPP-450
Load DPP-450 print
media, that is thermal
paper.
Using Your DPP-450
Install software from
the SDK onto your
mobile device to use the
features of the printer.
Developing Applications
Set-up Bluetooth pairing
to communicate with the
printer.
Bluetooth Pairing
Developing Applications
Software is not provided with your mobile printer. Please
contact your reseller or Infinite Peripherals for Third Party
software solutions.
Integrating the printer with your mobile application requires
the use of the Infinite Peripherals Software Developers
Kit (SDK). The SDK incorporates an API specifically for
developing applications with your printer.
To download the InfineaSDK or IPCMPPrinterSDK, access
our Development Portal at https://developer.ipcmobile.com/
Accessories
Visit our website at https://ipcmobile.com or contact your
Infinite Peripherals account representative for additional
information about our current and future product
accessories.
DPP-450 Printer Features
The mobile thermal printer captures data from personal
computers and other host systems through serial (RS232C),
USB, or Bluetooth (MFi or SPP) connectivity. The versatile
functionality built-in the printer allows you to use the data
output application of your choice.
Key Features
• Maximum 100mm per second, high-speed (standard unit)
• Maximum 62.5mm per second (peeler unit)
• Water and dust resistant with case (IP54)
• Drop ‘n load design
• Multiple settings: adjustable line spacing, variable paper
guide, paper feed, print density
• Print capability for barcode and 2-dimensional code
printing HEX-dump and test printing, large characters,
graphic by bit image, downloaded and user-dened
characters, table layout
• Page mode for portrait/inverse images, clockwise 90
degrees/counter-clockwise, 90 degrees, and overlapping
printing
• Registered graphic data
• Command system for ESC/POS
• Different character codes supported
Physical Features
Buttons
• Power - press to turn power On/Off
• Feed - press to feed paper through the printer
• Print - press to congure printer settings
• Paper cover release - press to open the paper cover
LED Indicators
• Power - status of the printer and battery pack
• Status - operational printer status
• Air - Bluetooth connection status
Covers
• USB/Serial - wired interface cover
• Battery - cover for battery compartment
• DC - adapter and DC jack cover
Misc
• Paper Guide - adjustment for width of paper
• Stopper - paper guide lid
• Peeler unit - use to remove the label from a label roll

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Product Overview
Power Button
Print Button
Paper Cover Latch
Paper Cover
Battery Location
USB/RS232C Port
Paper Feed Button
Battery Charging Jack

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Charging Your DPP-450
Before operating the DPP-450 printer, ensure the battery
pack is charged for at least 3 hours. Monitor the battery
status after the initial charge. If the battery is fully charged,
but the operating time is too short, replace the battery.
Note
Ensure the input cord is connected to the AC adapter before
charging the battery.
To prevent electrical damage to your printer and/or battery
pack, only use the approved AC charger provided with the
printer.
1. Pull the DC jack port tab backwards.
2. Insert the AC adapter into the port.
3. Introduce the AC adapter plug into an appropriate power
outlet to begin charging.
Charging LED Status
Battery LED indicators display the modes of operation
such as connection status and charging and/or low battery
conditions.
Color LED Status Action
Solid Red Paper is empty Load paper roll
Flashes Red Printer error Reboot printer
Solid Green Printer charged
Flashes
Green
Printer in process of charging
White Printer is off
AC
Adapter
Input Cord
DC Jack Port

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Replacing the Battery
Disconnect all cables and AC adapter before removing the battery.
1. Turn off the printer.
2. Open the cover to the battery compartment on the bottom of the printer.
3. Remove the battery.
4. Place a new battery pack into the battery compartment.
5. Replace the cover.
Battery Cover
Battery Locking Lever
Battery Disposal
All spent batteries must be disposed of in accordance with
Federal law. This includes taking the battery to a recycling
center or hazardous waste collection site.

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Installing Label Paper Rolls
You can drop and load a new paper roll into the printer
easily. Ensure the paper head is cool before placing the
paper roll into the printer.
1. Press the Paper Cover Release button to open the cover.
2. Slide the peeler up as shown.
3. Thread the label through the peeler, and then close the
paper cover securely.
Using Your DPP-450
Installing Standard Paper Rolls
The printer head should be cool before replacing the paper
roll. If the printer head is hot, touching it can result in
injuries.
1. Press the Paper Cover Release button down to open the
cover.
2. To set the paper size, pull the green lever, and then slide it
right for a small roll or left for a large roll.
3. Insert the new paper roll, and then pull the end of the
paper roll so that it is showing outside of the paper feed
area slightly.
4. Close the cover.

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Print Labels
Depending on the paper width, paper position, and tolerance,
the left and right margin calculated space may shift
approximately +/- 1mm on the right and left sides.
(Optional) The Gap Sensor (transparent photo interrupter)
and Black Mark Sensor (reflective photo interrupter) are at
the top of the form.
Set-up Label Printing
1. Set the paper sensor to marking detector using the FF
command.
2. Ensure the marking height is 3mm to 6mm.
Note
If over 6mm, the marking is not detected within 360 and
detects it as the end of the paper.
3. Once marking is selected, press the Feed button to feed
the paper to the next marking position.
4. To adjust the sensitivity of the sensor, type the ESC CSL
command.
Note
Be aware of the printing position variances, +/-2mm
at the top/bottom and +/- 1mm on the left and right
margins.
5. Set the end of the paper with at least 10mm excess from
the cutter.
Attach Belt Clip
The printer is designed to be worn on a belt with the belt clip
accessory.
Note
Use only the supplied screws to prevent damage to the
printer. Failure to use the recommended screws may not
fasten the belt clip securely to the printer. This may cause
the printer to separate from the belt clip using use.
1. Using your ngers, insert the two screws provided
through the holes on the belt clip.
2. Tighten the screws with an appropriate screwdriver.

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Diagnostic Self-Test
You can enter printer modes in your printer via the
Feed button. These modes are used to help developers
in debugging programming and communication issues.
1. Press the Power button and Feed button at the same
time to turn on the printer, which also starts the self-
test.
2. When the Status LED illuminates and the printer
begins printing, release the Feed button.
3. Once the self test is completed, the printer is in
Standby mode.
Hex Dump Mode
1. To print computer data in hexadecimal numbers and
characters, press and hold the Feed button, then press
the Power button.
2. When the printer beeps and the Power LED is green,
release the Feed button.
3. Hexadecimal numbers and characters from the host
system are printed in Dump mode.
4. Press the Power button again to cancel Hex Dump mode.
Configuration Menu Options
These characters are supported:
• Western - 1252
• CE - 1250
• Turkish - 1254 or 857
• Baltic - 1257 or 775
• Cyrillic - 1251
• Greek - 1253 or 737
• Hebrew - 1255 or 862
• Arabic - 1256, 1256A, 1256F
• Thai - 874
• English - 437
• Latin 1 - 850
• Portuguese - 860
• Latin 2 - 852
• Bulgarian - 856
• VISCII
Set-up the Hardware
1. Turn on the printer.
2. Press and hold the Power button until the Status LED
blinks red.
3. Once the LED stops blinking, release the button. The
printer is in Hardware Set-up Mode.
4. Press the Feed button to print the current settings. The
Hardware Conguration menu is displayed.
5. Press one of the following:
• Print to navigate between options.
• Feed to select an option.
• Power to return to the previous option.

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Print Current Settings
The function set mode switches register functions in memory
manually.
1. Once the printer is turned on, release the Power button
when Hardware Setup begins printing.
2. To print the memory switch data, press the Feed button.
Change Settings
In the Function Setting mode, press the Feed button to
select a setting. Press the Power button to move to the next
setting.
1. In Function Setting mode, press the Feed button at the
Enter Setup prompt.
2. Change the settings, as needed:
• Restore factory default
• Change Memory Switch
* Enable Sound
* Execute <CR> As <LF>
• Change Baud Rate
• Change Auto Off Time
• Change Print Darkness
• Change Character Table
• Change Pairing Info
• Change USB Device Class
3. At the Store Setting prompt, press Feed to store the
settings.
Set Memory Switches
If needed, you can reset the memory switches to the factory
defaults.
Note
The memory switch is selected by values; 0=No or 1=Yes.
1. Change Memory Switches
• Enable Sound — Buzzer on or off.
• Execute <CR> As <LF> — Disable CR or Enable CR.
• Disable <LF> After <CR> — Enable LP after CR (only the
switch NO3=0) or Disable LP after CR.
• Default Small Font — 0=Font A (24x12) or 1=Font B
(16x9).
• Use Gap Sensor — 0=BM sensor or 1=GAP sensor.
• Black Mark Mode — Disable black mark detection or
Enable black mark detection.
• Disable Discoverable — Bluetooth discovery mode or Not
Bluetooth discovery mode.
• Enable USB Interface —Disable USB function or Enable
USB function.
• USB in Device Mode — USB not used device or USB used
in device.
2. Change Baud Rate that affects the printer’s
communications speed (RS):
• 2400 bps
• 4800 bps
• 9600 bps
• 19200 bps
• 31200 bps
• 38400 bps
• 57600 bps
• 115200 bps

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DIP Switch Settings
With the different methods of communication in the DPP-
450, ensure the DIP switches remain as the factory default,
unless needed. Two different operational modes, which
detect current conditions differently are determined by the
SW2 switch:
• Continuous Paper Mode.
• Black Mark Mode — Determines the proper alignment
for the starting print position on indexed media with
printed data.
Switch Off On
SW1 Enable Bluetooth Disable Bluetooth
SW2 Continuous Paper
Mode
Black Mark Mode
SW3 None Xon / Xoff protocol
SW4 Normal operation
mode
Protocol mode
DIP Switch Location
1. To locate the DIP switch settings, turn the printer to
the back side, and then press down on the battery cover
latch.
2. To remove the battery cover, lift it upwards, and remove
the battery.
3. Turn the desired switch On or Off, as needed.
* 1st - Bluetooth enable or disable
* 2nd - Peeler Mode or Standard Mode (default)
* 3rd - Xon/Xoff - enable or disable software control
* 4th- Protocol Mode
Adjusting Print Density
Paper sensitivity is based on the type of thermal paper
used. For the best print quality, select the proper print
density. If the print head is overheated, it may result in poor
performance and longevity.
The default print density is 100%, which allows for proper
print quality. You can adjust the density to one of these
percentages:
• 60%
• 75%
• 90%
• 100%
• 120%
• 140%
• 160%

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Printer LEDs
No Error
Detected Description
Standby Printer is offline.
Power LED: None
Status LED: Green
Initialization Sets the printer’s memory offline. After
initialization is complete, the printer is
offline.
Power LED: Green
Status LED: Red
Waiting Error
Cancellation Status
Specific error conditions occur such as
paper roll empty, paper cover open, and so
forth. Press the Feed button for standby
mode.
Power LED: None
Status LED: Red
Temperature Error Print head temperature is increased by
continuous printing. If the print head
temperature exceeds 70 degrees C, the
print head stops automatically to prevent
overheating. The printer goes offline and
only resumes printing when the print head
temperature returns to 60 degrees C or
below.
Power LED: Green > No LED Off
Status LED: No LED (Off) > Red
Paper Empty When the paper roll reaches the end, the
status LED illuminates.
Power LED: Off
Status LED: Red
Battery Low Power LED: Green
Status LED: No LED (Off)
Paper Cover Open Power LED: Off
Status LED: Red
Charging Power LED:
Green > Green > No LED (Off)
Status LED: No LED (Off)
Charging Complete Power LED: Green
Status LED: No LED (Off)
Bluetooth Connectivity
Enable Bluetooth on your printer before pairing your iOS
device or Android device.
Initial Set-up
Press Feed after each entry.
1. To scroll down to the Pairing information, tap Print.
2. Tap Yes or No
• Disable Authentication = No.
• Change Pairing = Yes.
• Save Pairing = Yes
Set-up iOS Device
1. Access Settings > Bluetooth.
2. Tap to turn on green button.
3. Tap the name of the printer, IPC DPP-450, and then Pair
to connect.
4. Conrm DPP-450 is displayed in My Devices.

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Wifi Specifications W Model
WPA2 or another security setting may be configured. Refer
to the communication and security setting guide for details.
Note
Data larger than 270 KB can overload the printer buffer and
prevent the print job from finishing properly.
Contents Information
Hardware WiFI standard IEEE 802.11b
Speed Rate Maximum 11Mbps
Channel 1 to 13
Security 64/128 WEP, WPA-PSK, WPA2-PSK
Software WiFi protocol TCP, IP, Socket, ARP, RAPP
Port 1 to 9999 (default 9100)
Mode Infrastructure / Adhoc
SSID Alphanumeric character, SP, -, _
Maximum 32 columns character
string
IP address
setting
0.0.0.0 to 255.255.255.255
IP address
Sub-net mask
Gateway
Set-up Android
1. Access Settings > Bluetooth.
2. Tap IPC DPP-450 and OK to connect to the printer.
3. Conrm DPP-450 is displayed in Paired Devices.

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Resident Command Set
Command Command
1 BLE Sounds Buzzer 41 ESC D Set horizontal tab position
2 HT Horizontal Tab 42 ESC E Set/cancel emphasized mode
3 LF Print a line/Paper feed 43 ESC F Fill/invert page are page mode
4 FF Print/paper to black mark position 44 ESC G Set/cancel double-strike mode
5 CR Based on flags 2,3,4 45 ESC I Set/cancel italic print
6 DC2= Image LSB/MSB selected 46 ESC J Print paper feed n/203”
7 DC3( Start Ruled Line Sequence 47 ESC L Set page mode
8 DC3+ Ruled line On 48 ESC N Read programmed serial #
9 DC3- Ruled line Off 49 ESC R Select country
10 DC3A Ruled Line A 50 ESC S Set serial port bps speed
11 DC3B Ruled Line B 51 ESC T Print short self-test
12 DC3C Clear ruled line buffer 52 ESC U Set/cancel underlined printing
13 DC3D Set single dot in ruled line buffer 53 ESC V Set/cancel 90°right turned char print
14 DC3 F Ruled line pattern set 54 ESC W Set max print speed
15 DC3 L Ruled line set 55 ESC Y Set intensity level
16 DC3 M Ruled line combination mode 56 ESC X Set maximum print speed
17 DC3 P Ruled line 1 dot line print 57 ESC Z Return diagnostic data
18 DC3 p Ruled line n dots line print 58 ESC \ Set relative horz position
19 DC3 v Ruled line image write 59 ESC ] Load default settings from flash memory
20 CAN Canceling print job in page mode 60 ESC ^ Save current settings in flash memory
21 ESC FF Print data in page mode 61 ESC_ Load factory settings
22 ESC RS Buzzer sounds 62 ESC Read battery voltage/thermal head temp
23 ESC SP Set character spacing 63 ESC a Align characters
24 ESC # Set Euro symbol position 64 ESC b Print increase text line height
25 ESC $ Specify absolute horizontal print position 65 ESC c5 Enable/disable LF button
26 ESC % Set/cancel download printing char set 66 ESC d Print/feed paper by n-lines
27 ESC & Set/cancel character set 67 ESC i Feed paper backwards
28 ESC ! Specify text print mode 68 ESC o Temp feed paper forward
29 ESC * Print graphics 69 ESC pair= Enable/disable pairing/save BT mode
30 ESC + Switch off the printer 70 ESC pwd= Program new BT PIN
31 ESC - Set/cancel underlining 71 ESC r Full command for buzzer
32 ESC . Print self-test/diagnostics 72 ESC s Read printer settings
33 ESC 2 Specify 1/6” line feed rate 73 ESC u Set code table
34 ESC 3 Specify line feed rate n/203” 74 ESC v Transmit printer status
35 ESC < Change to opposite print direction 75 ESC x Set time interval automatically turn off printer
36 ESC = Data input control 76 ESC y Set USB response strings
37 ESC > Set print direction 77 ESC { Set/cancel 180° turned characters print
38 ESC ? Read magnetic stripe card 78 GS FF Print page mode/return to standard mode
39 ESC @ Initialize printer 79 GS $ Specify page mode absolute vertical position
40 ESC CAL Black mark mode sensor calibration 80 GS ) Set printer flags/memory switches