FK Irons ONE INTRO User manual

USER MANUAL
and Wireless for All

INDEX
Safety Notice
Intro
Overview
Operation
Removing the battery
Charging the battery
Adjusting Needle Depth
Additional Information
& Troubleshooting
3
4
5
6
7
8
9
10

3
USER MANUAL
CLASS III SYMBOL
A Class III appliance is designed to be supplied from a separate/safety
extra-low voltage (SELV) power source. The voltage from a SELV supply is
low enough that, under normal conditions, a person can safely come into
contact, without the risk of electrical shock. The extra safety features built
into Class I and Class II appliances are, therefore, not required. For medical
devices, compliance with Class III is not considered sufcient protection,
and further, more-stringent regulations apply to such equipment.
TECHNICAL DATA
SAFETY NOTICE
This device is only for use by trained tattoo artists and not for use by children or persons of reduced physical, sensory
or mental capabilities.
BARRIER PROTECTING YOUR MACHINE
We strongly suggest the use of barrier products to protect your machine. For a visual demonstration
of barrier protection methods, please visit our FK Irons YouTube channel.
Operating Voltage: 5-12V DC
Current: UP TO 1.0A
Ambient Temperature: +10 to +35 °C
Relative Humidity: 30 to 75%
Dimensions (Ø X L): H124 x W36.7
Weight: Approx. 213g (7.5oz)
Battery Cell: Panasonic NCR 18500A

4
USER MANUAL
ONE INTRO
FK ONE
Premium quality. Sophisticatedly simple.

5
USER MANUAL
Compact Battery Housing
Quick-Twist
Battery Hatch
Control Buttons
SPECIFICATIONS
• Output Voltage: 5-12V
• Increment/decrement voltage interval: 0.5V*
• Maximum output current: 1A
• Charger Input: USB-C
• Size: H 124mm x W 36.7mm
• Weight: Without battery 195g (6.87oz)
with battey 213g (7.5oz)
• Battery Life: ~ 6-10 Hours
(based on operating parameters)
Panasonic NCR 18500A
Flat-Top Rechargable Battery
9-Watt Motor
Click-Grip Needle
Depth Adjustment
Redesigned, ergonomic grip
for functional comfort and
modular grip compatibility
OVERVIEW
124mm
36.7mm

6
USER MANUAL
OPERATION
OPERATING THE ONE
LED indicator
Voltage up
Center button
Voltage down
Battery level check: Press and
hold power button until white.
A blinking colored light indicates
remaining charge.
Voltage Selection: Using the Voltage up and
Voltage down buttons you can cycle through
the diffrent setting. A solid color equals a whole
value (Ex. Solid green indicates 10V). Blinking
color is a half increment (Ex. Flashing green
indicates 10.5V).Use the power button to start
and stop the machine.
14 - 0%
97 - 60%
100 - 98%
59 - 40%
39 - 15%
5V 12V
11V6V
10V7V
9V8V
Bluetooth connection for an
update for FK ONE:
1. Press UP+CENTER buttons
simultaneously to activate the
Bluetooth, where the LED will turn
DARK BLUE to indicate that the
Bluetooth turned on.
2. Use DarkLab application to
Update FK ONE.
3. After the update is completed,
the Bluetooth is disconnected
by DEFAULT.

7
USER MANUAL
REMOVING THE BATTERY
CHANGING THE BATTERY
The ONE is compatible with
the Panasonic NCR 18500A
Flat-Top Battery. To detach the
cap, ensure you have a rm
grip on the body of the ONE
and Grip. Turn the cap counter-
clockwise and pull away. Slide
the battery out of the battery
housing. To replace battery,
slide new battery into housing.
Battery must sit correctly to
ensure power electric leads
align correctly. Avoid contact
with the ONE power leads while
changing battery.
Turn power off before removing
battery from machine.
Twist the cap as
shown and remove.
Slide battery out of
battery housing.
Twist clockwise to
close/activate battery.
Twist counter-clockwise to open. Push
down & keep twisting counter-clockwise to
deactivate battery. NOTE: Cap is shipped in
the OFF position.

8
USER MANUAL
CHARGING YOUR BATTERY
HOW TO
CHARGE
YOUR
BATTERY
First, plug the eFest Slim K2 charger
into a wall outlet using the included
power adapter. Next, insert the
Panasonic 18500A battery into one
of the charging bays on the eFest
Slim K2 charger. Be sure to insert
the battery with the positive (+)
end facing up, and the negative (-)
end facing down.The eFest Slim K2
charger will automatically detect the
type of battery you have inserted
and display the battery life on the
screen.Once the battery is fully
charged, the eFest Slim K2 charger
will automatically stop charging and
display a message indicating that
the charging process is complete.
You can then remove the battery
from the charger and use it as
needed.

9
USER MANUAL
ADJUSTING
NEEDLE
DEPTH
To adjust needle depth, hold
the machine body while turning
the Grip. A counter-clockwise
turn decreases depth, while a
clockwise turn increases depth
(also known as needle hang).
Each time you turn the grip you
can feel the tactile feedback
of the ratcheting mechanism.
Each “click” displaces your
needle 0.2 mm and allows you
to set your needle precisely
without involuntarily turning
while tattooing.
ADJUSTING NEEDLE DEPTH
Turning the grip as shown
increases needle depth.
Turning the grip as shown
decreases needle depth.
Increases needle depth Decreases needle depth

10
USER MANUAL
VOLTAGE PARAMETERS
While voltage is a parameter that will vary from artist to artist, the ONE has been tested
to operate at a minimum voltage of 5 Volts to a maximum voltage of 12 Volts.
Depending on the type of needle conguration, or brand you use, feel free to adjust the voltage to
obtain the desired performance.
WARRANTY
Darklab warrants that the device will perform efciently when used as intended. Should this product
prove to be defective due to manufacturing issues, Darklab will repair/replace the device free of charge.
This warranty will be void if the device shows signs of having been tampered, disassembled, handled
roughly, dropped, overexposed to moisture or damage resulting in compromised functionality.
HANDY TIPS
The following tips will help you get the most out of your ONE and avoid potential issues:
• Do not exceed the suggested voltage
• Use only FDA-approved cold sterilization solutions for disinfection
• NOT AUTOCLAVABLE
ADDITIONAL INFORMATION
TROUBLESHOOTING
1.- Machine Manufacturer
FK Irons: 1771 NW 79th Avenue, Doral, Florida 33126
2.- Servicing Your Machine
As for any mechanical device, FK Irons strongly suggests that you service your device once a
year to ensure all working parts are working as expected. This ensures the optimal condition of
all working parts, including internal machine clean up and fresh lubrication. Routine servicing will
ensure that your machine remains functioning as intended. Service is subject to fees.
3.- Warning
Disconnect machine from any power source before making any adjustments.
For service inquiries, please contact [email protected].
For additional tips and tutorials, please visit Youtube.com/FKirons