Zebra QLN420, QLN220, QLN320 User Manual
QLn Series
Mobile Printers
TM
P1028026-005 Rev. A
User Guide
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QLn Series User Guide
Table of Contents
Proprietary Statements......................................................................................5
Document Conventions......................................................................................7
Cautions, Important, and Note...........................................................................7
Introduction to the QLn™ Series Printers........................................................8
QLn Series Technology......................................................................................9
Smart Battery......................................................................................................9
Printing Technology...........................................................................................10
Direct Thermal....................................................................................................10
QR Code..............................................................................................................11
Made for iPhone (MFi)........................................................................................11
Near Field Communication (NFC)..................................................................... 11
QLn Series Overview..........................................................................................12
Getting Ready to Print........................................................................................16
Installing the Battery..........................................................................................16
Battery Safety.....................................................................................................17
Charger Safety....................................................................................................17
Charging Status Indicators...............................................................................18
Battery Health Indicator.....................................................................................18
SC2 Dimensions.................................................................................................19
Model UCLI72-4 Quad Charger (AC18177-5).....................................................19
AC Power Adapter (p/n P1031365-024).............................................................21
Ethernet and Charging Cradles.......................................................................22
Printer Operation with Cradle...........................................................................26
Loading Media Procedure.................................................................................27
Loading Media in Peel-off Mode (QLn220/320)...............................................29
Loading Media in Peel-off Mode (QLn420)......................................................30
QLn Healthcare Printers....................................................................................31
Standard Control Panel.....................................................................................33
LCD Control Panel.............................................................................................35
Status Bar Icons ................................................................................................36
Main Menu Screen (QLn320/220)......................................................................38
Programmable LCD Settings............................................................................39
Home Menu Screen (QLn420 and QLn Healthcare Printers)..........................40
Verify the Printer is Working.............................................................................44
Printing a Conguration Label..........................................................................44
Connecting the Printer......................................................................................45
Cable Communication.......................................................................................46
RS-232C Communications.................................................................................46
USB Communications........................................................................................46
Providing Strain Relief for Communications Cable.........................................47
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QLn Series User Guide
Wireless Communications with Bluetooth.....................................................49
Bluetooth Networking Overview......................................................................49
WLAN Overview.................................................................................................52
Setting Up the Software....................................................................................52
Setting Up the Software....................................................................................53
Near Field Communication (NFC).....................................................................53
QLn Series Accessories....................................................................................55
Swivel Belt Clip..................................................................................................55
Soft Case............................................................................................................56
Hard Case...........................................................................................................56
Adjustable Shoulder Strap................................................................................57
Hand Strap..........................................................................................................58
Preventive Maintenance....................................................................................59
Extending Battery Life.......................................................................................59
General Cleaning Instructions..........................................................................59
Troubleshooting.................................................................................................62
Front Control Panel............................................................................................62
LCD Control Panil Indicators............................................................................63
Troubleshooting Topics....................................................................................64
Troubleshooting Tests......................................................................................66
Printing a Conguration Label.........................................................................66
Communications Diagnostics...........................................................................66
Specications.....................................................................................................71
Printing Specications......................................................................................71
Memory and Communications Specications ...............................................71
Label Specications..........................................................................................72
CPCL Font and Bar Code Specications and Commands.............................73
ZPL Font and Bar Code Specications and Commands................................74
Communication Ports........................................................................................75
Physical, Environmental and Electrical Specications..................................76
QLn Series Accessories....................................................................................80
QLn Series Accessories cont...........................................................................81
Appendix A.........................................................................................................82
Interface Cables (RS-232 Cables).....................................................................82
USB Cables.........................................................................................................83
Appendix B.........................................................................................................84
Media Supplies...................................................................................................84
Appendix C.........................................................................................................84
Maintenance Supplies.......................................................................................84
Appendix D.........................................................................................................85
Appendix E.......................................................................................................104
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QLn Series User Guide
Appendix F.......................................................................................................105
Battery Disposal..............................................................................................105
Product Disposal.............................................................................................105
Appendix G......................................................................................................106
Alert Messages................................................................................................106
Appendix H.......................................................................................................107
Using Zebra.com..............................................................................................107
Appendix I.........................................................................................................109
Product Support ...............................................................................................109
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QLn Series User Guide
Proprietary Statements
This manual contains proprietary information of Zebra Technologies Corporation. It is
intended solely for the information and use of parties operating and maintaining the equipment described herein. Such proprietary information may not be used, reproduced, or disclosed to any other parties for any other purpose without the expressed written permission
of Zebra Technologies Corporation.
Product Improvements
Since continuous product improvement is a policy of Zebra Technologies Corporation, all
specifications and signs are subject to change without notice.
Agency Approvals and Regulatory Information
Design Safety certified by TUV EN55022 Class B European Electromagnetic
EN60950-1: 2nd Ed. Safety Standard EN55024: European Immunity Standard
NOM (Mexico) RCM (Australia/NZ)
FCC part 15 Class B RoHS II
Canadian STD RSS-210
Liability Disclaimer
Inasmuch as every effort has been made to supply accurate information in this manual,
Zebra Technologies Corporation is not liable for any erroneous information or omissions.
Zebra Technologies Corporation reserves the right to correct any such error s and disclaims
liability resulting therefrom.
No Liability for Consequential Damage
In no event shall Zebra Technologies Corporation or anyone else involved in the creation,
production, or deliver y of the accompanying product (including hardware and software)
be liable for any damages whatsoever (including, without limitation, damages for loss of
business profits, business interruption, loss of business information, or other pecuniary
loss) arising out of the use of or the results of use of or inability to use such product, even
if Zebra Technologies Corporation has been advised of the possibility of such damages.
Because some states do not allow the exclusion of liability for consequential or incidental
damages, the above limitation may not apply to you.
Copyrights
The copyrights in this manual and the label print engine described therein are owned by
Zebra Technologies Corporation. Unauthorized reproduction of this manual or the sof tware
in the label print engine may result in imprisonment of up to one year and fines of up to
$10,000 (17 U.S.C.506). Copyright violators may be subject to civil liabilit y.
This produc t may contain ZPL®, ZPL II®, and ZebraLinktm programs; Element Energy Equalizer® Circuit; E3®; and AGFA fonts. Software © ZIH Corp. A ll rights reserved worldwide.
ZebraLink and all produc t names and number s are trademarks, and Zebra, the Zebra logo,
ZPL, ZPL II, Element Energy Equalizer Circuit, and E3 Circuit are registered trademarks of
ZIH Corp. All rights reserved worldwide.
Monotype®, Intellifont® and UFST® are trademarks of Monotype Imaging, Inc. registered in
the United States Patent and Trademark Of fice and may be registered in certain jurisdictions.
AndyTM , CG PalacioTM, CG Century SchoolbookTM, CG TriumvirateTM, CG TimesTM, Monot ype
KaiTM, Monot ype MinchoTM and Monotype SungTM are trademarks of Monotype Imaging, Inc.
and may be registered in some jurisdictions.
HY Gothic HangulTM is a trademark of Hanyang Systems, Inc.
AngsanaTM is a trademark of Unity Progress Company (UPC) Limited.
Andale®, Arial®, Book Antiqua®, Corsiva®, Gill Sans®, Sorts® and Times New Roman® are
trademarks of The Monotype Corporation regis tered in the United States Patent and Trademark Off ice and may be registered in certain jurisdictions.
Century Gothic™, Bookman Old StyleTM and Century SchoolbookTM are trademarks of The
Monot ype Corporation and may be registered in certain jurisdictions.
HGPGothicB is a trademark of the Ricoh company, Ltd. and may be regis tered in some jurisdictions.
Radiation Standard
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QLn Series User Guide
UniversTM is a trademark of Heidelberger Druckmaschinen AG, which may be registered in
certain jurisdictions, exclusively licensed through Linotype Library GmbH, a wholly owned
subsidiary of Heidelberger Druckmaschinen AG.
Futura® is a trademark of Bauer Types SA registered in the United St ates Patent and Trademark Off ice and may be registered in some jurisdictions.
Tru eTy p e® is a trademark of Apple Computer, Inc. registered in the United States Patent and
Trademark Of fice and may be registered in certain jurisdictions.
All other product names are the propert y of their respective owners.
“Made for iPod”, “Made for iPhone”, and “Made for iPad” mean that an electronic accessory
has been designed to connect speci fically to iPod, iPhone, or iPad, respectively, and has
been certified by the developer to meet Apple per formance 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 accessor y with iPod, iPhone, or iPad may affect wireless
performance.
Bluetooth® is a registered trademark of the Bluetooth SIG.
© 1996 –2009, QNX Soft ware Systems GmbH & Co. KG. All rights reser ved. Published under license by QNX Soft ware Systems Co.
All other brand names, product names, or trademarks belong to their respective holders.
©
2015 ZIH Corp.
Certified by:
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QLn Series User Guide
Document Conventions
The following conventions are used throughout this docu-
ment to convey certain information:
Cautions, Important, and Note
Caution • Warns you of the potential for electrostatic discharge.
Caution • Warns you of a potential electric shock situation.
Caution • Warns you of a situation where excessive heat could cause
a burn
Caution • Advises you that failure to take or avoid a specific action
could result in physical harm to you.
Caution • Advises you that failure to take or avoid a specific action
could result in physical harm to the hardware.
Important • Advises you of information that is essential to complete a
task.
Note • Indicates neutral or positive information that emphasizes or
supplements important points of the main text.
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QLn Series User Guide
Introduction to the QLn™ Series Printers
Thank you for choosing our Zebra® QLn™ Series Mobile
Printers. You will find these rugged printers will become a
productive and efficient addition to your workplace thanks
to their innovative design and state of the art features. Zebra
Technologies is the leader in industrial printers with worldclass support for all of your bar code printers, software, and
supplies.
This user’s guide gives you the information you will need to
operate the QLn420, QLn320, and QLn220 printers, including
QLn Healthcare and Made for iPhone® (MFi) printers. MFi printers provide Apple co-processor (MFi) support which allows an
Apple device such as an iPhone or iPad® to authenticate and
connect over Bluetooth®.
These printers use CPCL and ZPL programming languages.
To create and print labels using the CPCL and ZPL languages, refer to the Programming Guide for CPCL and ZPL (p/n
P1012728-008). See Appendix G for instructions on how to access manuals on zebra.com.
QLn Series Software Utilities:
• Zebra Net Bridge™ : printer configuration, fleet management
• Zebra Setup Utility: single printer configuration, quick setup
• Zebra Designer Pro: label design
• Zebra Designer Drivers: Windows® driver
• OPOS Driver: Windows driver
• Multiplatform SDK
(These utilities can be found on the Zebra website at
http://www.zebra.com/us/en/support-downloads.html.
See Appendix G.)
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QLn Series User Guide
Unpacking and Inspection
• Check all exterior surfaces for damage.
• Open the media cover (refer to “Loading the Media” in the
Getting Ready to Print section) and inspect the media compartment for damage.
In case shipping is required, save the carton and all packing ma-
terial.
Reporting Damage
If you discover shipping damage:
• Immediately notify and file a damage report with the shipping
company. Zebra Technologies Corporation is not responsible for any damage incurred during shipment of the printer
and will not cover the repair of this damage under its warranty policy.
• Keep the carton and all packing material for inspection.
• Notify your authorized Zebra re-seller.
QLn Series Technology
The QLn420, QLn320 and QLn220 use several technologies
made popular in other Zebra Mobile Printer product lines, as
well as newer technologies.
Smart Battery
The QLn Series battery pack is a high capacity, smart Lithium
Ion battery that contains electronics which allow the printer to
monitor its operating parameters. Among these are the number
of charge cycles it has undergone and its date of manufacture.
Using these parameters, the printer’s software can monitor the
battery’s condition and alert the user when to recharge or remove
the battery from service.
Operating Temperature Charging Temperature Storage Temperature
-200C to +550C
(-4oF to 131oF)
The QLn Series printers will only function properly with genuine Zebra
smart battery packs.
00C to +400C
(32oF to 104oF)
-250C to +650C
(-13oF to 149oF)
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QLn Series User Guide
The smart battery’s health has three states: GOOD, REPLACE,
and POOR. The battery health factor determines whether or not
the printer can operate and what is communicated to the user via
the display.
# of Charge Cycles Health Power-up Message
<300 GOOD None
>300 but <550 REPLACE “Battery Diminished
_
Consider Replacing” *
>550 but <600 REPLACE “Warning-Batter y
_
Is Past Useful Life” *
>600 POOR “Replace Battery
_
Shutting Down” **
* Warning accompanied by one long beep.
** Warning will flash on and off accompanied by beeping at a
rate of once per second. After 30 seconds the printer will shut
down.
Note • Power down the printer before removing the battery to minimize
the risk of corruption.
Printing Technology
The QLn Series printers use the Direct Thermal method to print
human readable text, graphics and barcodes. It incorporates a
sophisticated print engine for optimal printing under all operational conditions.
Direct Thermal
Direct thermal printing uses heat to cause a chemical reaction on specially treated media. This reaction creates a dark mark
wherever a heated element on the printhead comes in contact
with the media. Since the printing elements are arranged very
densely at 203 d.p.i. (dots per inch) horizontal and 200 d.p.i. vertical, highly legible characters and graphic elements may be
created a row at a time as the media is advanced past the printhead. This technology has the advantage of simplicity, as there
is no requirement for consumable supplies such as ink or toner. However, since the media is sensitive to heat, it will gradually
loose legibility over long periods of time, especially if exposed to
environments with relatively high temperatures.
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QLn Series User Guide
QR Code
The QR barcode includes human readable text (URL) which
links the user to printer information and short videos on topics
such as buying supplies, features overview, loading media, printing a configuration report, cleaning instructions, and accessory
information. (See Page 13 for each printer’s URL address.)
Made for iPhone (MFi)
QLn printers support communication with Apple devices
running iOS 5 or later over a standalone Bluetooth 3.0 radio
and the BT3.0 radio included with the 802.11n (dual) radio.
Only printers with the “M” in the ninth digit spot of the part
number support this feature, i.e. QNx-xxxxxMxx-xx.
Near Field Communication (NFC)
A passive NFC tag with the Bluetooth printer address will provide instant access to printer-specific information via an NFCenabled smartphone.
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QLn Series User Guide
QLn Series Overview
Figure 1: QLn320 Shown
13
3
1
2
12
4
5
14
11
9
1. Platen Roller
2. Black Bar Sensor
3. Media Support Disks
4. Tear Bar
5. Label Presence Sensor
6. Peeler Lever
7. Peeler Bail
8. Latch Release Lever
9. Key Pad
10. Strap Post
11. Status Screen
12. Printhead
13. Media Cover
14. Gap Sensor
3
6
7
8
10
15. Belt Clip
16. Battery
17. USB/RS-232 Comm Por ts
18. MAC Address Label
19. Docking Contacts
20. DC Input
21. NFC (Print Touch Icon)
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QLn Series User Guide
17
15
16
18
19
Note: Scanning the QR code with a smartphone will provide printer-
specific information at www.zebra.com/qln220-info and
www.zebra.com/qln320 -info.
Note: Tapping the Zebra Print TouchTM icon with a Near Field
Communication (NFC) enabled smartphone will provide instant
access to printer-specific information. For more information about
NFC and Zebra products, go to
http://www.zebra.com/n fc
.
Bluetooth pairing applications via NFC is also possible. Please see
Zebra Multi-platform SDK for more information.
21
20
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QLn Series User Guide
Figure 2: QLn420 Shown
13
4
1
2
3
14
5
7
11
9
1. Platen Roller
2. Black Bar Sensor
3. Media Support Disks
4. Tear Bar
5. Label Presence Sensor
6. Peeler Lever
7. Peeler Bail
8. Latch Release Lever
9. Key Pad
10. Strap Post
11. Status Screen
12. Printhead
13. Media Cover
14. Gap Sensor
12
6
8
10
15. Belt Clip
16. Battery
17. DC Input
18. MAC Address Label
19. Docking Contacts
20. USB/RS-232 Comm Ports
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QLn Series User Guide
15
16
17
18
19
Note: Scanning the QR code with a smartphone will provide printer-
specific information at www.zebra.com/qln420-info.
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QLn Series User Guide
15
Getting Ready to Print
Battery
Installing the Battery
Important • Batteries are shipped in sleep mode to preserve their
maximum capacity while in storage prior to initial use. Plug in the AC
adapter (see Pg. 19) or insert the bat tery into the Smart Charger 2 or
Quad Charger (see Pg. 17) to wake it up before using for the first time.
1. Locate the battery compartment on the bottom of the
printer.
2. Swivel the belt clip (if present) to access battery compart-ment.
3. Insert the battery into the printer as shown in Figure 1. (It
is not possible to insert the pack in an incorrect orientation.)
4. Rock the battery into the compartment as shown until it
locks in place.
When the battery is first installed, the control panel indicators may briefly turn on and then go off which indicates the
battery is not fully charged.
Figure 3: Installing the Battery (QLn220 Shown)
Belt Clip
Battery
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QLn Series User Guide
Battery Safety
Caution • Avoid accidental short circuiting of any battery. Allowing
battery terminals to contact conductive material will create a short
circuit which could cause burns and other injuries or could start a
fire.
Important • Always refer to the Important Safety Information data
sheet shipped with each printer and the Technical Bulletin shipped
with each battery pack. These documents detail procedures to
ensure maximum reliability and safety while using this printer.
Important • Always dispose of used batteries properly. Refer to
Appendix E for more battery recycling information.
Caution • Use of any charger not approved specifically by Zebra for
use with its batteries could cause damage to the battery pack or the
printer and will void the warranty.
Caution • Do not incinerate, disassemble, short circuit, or expose to
temperatures higher than 65oC (149oF).
Charger Safety
Do not place any charger in locations where liquids or metallic
objects may be dropped into the charging bays.
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QLn Series User Guide
Smart Charger-2 (SC2) Single Battery Charger (P1031365-063)
The Smart Charger-2 (SC2) is a charging system for use with
the 2-cell and 4-cell lithium-ion smart batteries used in the
QLn Series printers.
Charging Status Indicators
The SC2 uses a LED indicator to indicate the charge state in
either Green, Yellow, or Amber as detailed below.
DC Power Input Indicator Battery Status
Present Green Battery not present
Present Green Fully charged
Present Yel l ow Charging
Present Amber Fault
Present Off Present and Battery
Health = POOR
There will also be a battery charging graphic to indicate that
this LED is the charging status indicator .
Battery Health Indicator
The SC2 features a tri-color (Yellow/Green/Amber) LED to indicate the health of the battery pack. An evaluation of the battery health begins upon insertion of the battery in the charger
and results in the appropriate LED being illuminated as shown
below. The LED will remain illuminated as long as input power
is applied.
Battery Indicator Health Status
None or non-smart Off
Smart battery present Green GOOD
Smart battery present Yell ow CAPACITY DIMINISHED
Smart battery present Flashing yellow PAST USEFUL LIFE
Smart battery present Amber UNUSABLE-REPLACE
(discard per Instructions in
Appendix E
Note • For detailed information on the SC2, refer to the
Smart Charger 2 User Guide (p/n P1040985-001).
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QLn Series User Guide
Figure 2: Smart Charger-2 (SC2)
Smart Battery
Charge Status Icon Health Status Icon
SC2 Dimensions
Charg e S tat us
LED Indicator
Health Status
LED Indicator
Height Width Length
65.1 mm (2.56 in.) 101.5 mm (4 in.) 120.9 mm (4.75 in.)
Model UCLI72-4 Quad Charger (AC18177-5)
The UCLI72-4 Quad Charger is designed to charge up to four (4)
QLn Series battery packs simultaneously. Batteries must be removed from the printer to be charged in the Quad Charger.
1. Ensure that the charger has been installed properly per the
Quad Charger instruction manual. Ensure that the power indicator on the front panel is on.
2. Plug a battery pack into any one of the four charging bays as
shown in Figure 3, noting the orientation of the battery pack.
Slide the battery pack into the charging bay until it stops and
then rock the battery pack back until it snaps into place. The
amber indicator directly under the battery being charged will
turn on if the battery is properly inserted.
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QLn Series User Guide
The indicators under the battery will allow you to monitor the
charging process per the table below:
Amber Green Battery Status
On Off Charging
On Flashing
Off On Completely Charged
Flashing Off Fault-Replace
Important • A fault condition is caused by a problem with the battery.
The charger may indicate a fault because the battery is too hot or cold
to charge reliably. Try to charge the battery again when it returns to the
room’s ambient temperature. If the amber indicator starts flashing on
the second attempt, the battery should be discarded. Always dispose of
batteries in a proper manner as described in Appendix F.
Figure 3: Quad Charger
80% charged (O.K.
to use)
Battery
1. Slide Battery Pack
into Charger bay.
2. Rock Battery Pack into place.
Amber
Indicator
Green
Indicator
Power Indicator
Quad Charger Cycle Times :
Battery Status Standard Pack Extended Pack
Battery 80% Charged <2 Hrs. <4 Hrs.
Battery Fully Charged < 3 Hrs. <5 Hrs.
Note • These times are for completely discharged batteries.
Power Supply
Charger Bay
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QLn Series User Guide
Battery packs which are only partially discharged will take less
time to reach their charged state. Batteries which have reached
80% of their charge capacity may be used, however, it is recommended that you allow the batteries to reach a full charge to
maintain maximum battery life.
The UCLI72-4 Quad Charger has a safety feature which stops charging a
battery after six hours regardless of its charge state. If not fully charged,
it might be indicative of a battery that needs to be replaced.
Use care when installing the UCLI72-4 Quad Charger so that you do not
block the ventilating slots on the top and bottom covers. Ensure that the
charger is plugged into a power source which will not accidently be
turned off if you will be charging batteries overnight.
AC Power Adapter (p/n P1031365-024)
Figure 4: Charging the Battery Pack with the AC Power Adapter
AC Adapter
DC Input
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QLn Series User Guide
AC Power Cord
(varies with
geographic
location)
• Open the protective cover on the printer to expose the DC
input charger jack.
• Connect the appropriate AC power cord for your location to
the adapter and then plug the power cord into an AC receptacle.
• Plug the barrel plug from the AC adapter into the charger
jack on the printer.
• The printer will power up and begin charging. The printer
can be left on or turned off at this point. Charging will continue in either state.
Note • Batteries are shipped in sleep mode to preserve their maximum
capacity while in storage prior to initial use. Plug in the AC adapter (see
Pg. 19) or insert the battery into the Smart Charger 2 or Quad Charger (see
Pg. 17) to wake it up before using for the first time.
While it’s possible to charge the battery when using the printer, charge
times will increase under this condition.
Ethernet and Charging Cradles
The cradle is an expansion base intended for use with the
QLn Series printers. There is a four bay cradle (QLn-EC4) or
a single bay option (QLn-EC) for use with the QLn220 and
320, as shown on pages 23 and 24. There is also a single bay
Ethernet and charging option for the QLn420 (QLn420-EC) as
shown on page 24.
The QLn-EC/EC4 cradles provide charging power to the
docked printer as well as providing a standard 10/100Mb/S
Ethernet port for communication to the printer. The QLn420EC also provides charging power to the docked printer, as well
as a standard 10/100Mb/T Ethernet port for
communication to the printer. All cradles also supply battery
charging power to the docked printer and acts as a supplemen-
tary power source for a functioning QLn printer.
All QLn Ethernet cradles feature two LED’s to indicate the
status of the cradle: Solid green to indicate when power is
provided to the input of the cradle; and blinking green to indi-
cate Ethernet activity.
The cradle allows the user to dock the printer easily and re-
move it with the push of a button. The printer shall remain
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QLn Series User Guide
operable while docked, i.e. display is viewable, charge LED status is viewable, and printer controls and data entry are available.
The printer will still print while docked and the user shall be able
to replace the media as well.
LED Status Indication
Solid Green Power On
Blinking Green Ethernet Activity
Note • Remove the “Docking Cradle Access” label on the bottom of the
QLn320 or QLn220 printers before docking the printer in the cradle.
DOCKING CRADLE ACCESS
Note • Clean the docking contacts with a Zebra cleaning pen to remove
any residue lef t behind by the label.
The QLn420 does not use the above label over the docking
contacts, but instead includes a plastic docking contacts cover
secured by two screws. Remove the screws to remove the
docking contacts cover from the printer and expose the docking
contacts (as shown below).
Docking Contacts
Docking Contacts
Cover
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QLn Series User Guide
Figure 5: Ethernet Cradle (4-Bay for QLn220/320)
Docking Bay
Ethernet
Status Indicator
Release
Button
Power Status
Indicator
Height Width Length
66,7 mm (2.62 in.) 579,9 mm (22.83 in.) 150,57 mm (5.93 in.)
Note • The QLn220 and 320 extended battery capacity is not compatible
with the QLn-EC and EC4 cradles.
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QLn Series User Guide
Figure 6: Ethernet Cradle Single Bay (QLn220/320)
Release Button
Ethernet Status
Release Button
Indicator
Cradle Height Width Length
QLn-EC 66,7 mm
(2.62 in.)
QLN420-EC 66,2 mm
(2.60 in.)
171,28 mm
(6.74 in.)
137,7 mm
(5.42 in.)
Figure 7: Ethernet Cradle (QLn420)
Release Button
150,57 mm
(5.93 in.)
219,6 mm
(8.64 in.)
AC Adapter
Ethernet Status
Indicator
Power Status
Indicator
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QLn Series User Guide
Printer Operation with Cradle
• All QLn Series printers will charge when placed in their
supported cradles.
• Only QLn Series printers that have the Ethernet option in-
stalled
will connect to an Ethernet network. Check the
PCC code on the back of the printer (see Appendix
D for location). Codes of the form QNx-xxxxx0xx-xx
do not support Ethernet, and codes of the form QNxxxxxxExxxx or QNx-xxxxxMxx-xx do support Ethernet
(where “x” means don’t care). You can also check the
“Communications” sub-menu on the LCD (see Main
Menu Screen on page 38). After selecting this sub-menu,
any communication options not installed will be so indicated.
• When power is applied to the cradle and the printer is
docked, the printer charge LED indicates the charge status
of the printer (see Figure 18).
• Docking the printer in the cradle will automatically turn
the printer on to ensure it is available to be managed remotely.
• When the printer detects input power from the cradle, and
the presence of a live Ethernet link, it will automatically
reboot and connect to the Ethernet network.
• For printers with an 802.11 radio, this interface will be
turned off when the Ethernet link is active. It will turn
back on if the Ethernet link is no longer active.
• For printers with a Bluetooth radio, this interface will remain
active while the printer is in the cradle.
• The serial and USB ports will remain active while the printer
is in the cradle.
• The DC input barrel jack connector (see Figure 7) cannot
be used while the printer is in the cradle. The DC barrel
jack should be plugged directly into the cradle instead.
Note • The printer provide over voltage protection such that no damage
occurs when voltages from 0-36V are applied at the DC Power jack. Upon
application of voltage greater than 36V, the DC line fuse will permanently
open to reduce fire hazard. The battery is only charged when 12VDC is
applied using the Zebra AC adapter.
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QLn Series User Guide
Loading the Media in the QLn Series Printers
You can operate QLn Series printers in one of two different
modes: Tear-Off or Peel-Off. Tear-Off mode allows you to tear
off each label (or a strip of labels) after it is printed. In Peel-Off
mode, the backing material is peeled away from the label as it
is printed. After you remove this label, the next one is printed.
Loading Media Procedure
1. Open the printer (Refer to Figure 7).
• Press the Media Cover Button on the side of the printer as
shown in “1” below. The Media Cover will open
automatically.
• Rotate the Media Cover back completely as shown in “2”, exposing the media compartment and adjustable media supports.
Figure 8: Opening the Printer
Media Cover
Media
Compartment
Media Supports
(opposite support
not visible)
Latch Release
Lever
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QLn Series User Guide
2. Pull the media supports apart as shown in Figure be-
4
low. Insert the roll of media (in the orientation shown) between
the supports and let the supports secure the media in place. The
supports will adjust themselves to the width of the media, and
the media roll should be able to spin freely on the supports.
Figure 9: Loading Media
3. If you plan to use the printer in tear-off mode, close the
media coveras shown below.
Pull Media out of
Printer
Close Media Cover
Note • Please refer to the Programming Guide (P1012728-xxx) for
information on changing the setting to adjust the media feed length via a
Set-Get-Do (SGD).
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QLn Series User Guide
Loading Media in Peel-off Mode (QLn220/320)
• If you plan to use the printer in the peel-off mode, peel a
few labels off of the media and load the media as previously described.
• Push the peeler lever forward to release the peeler bail into
the “up” position as shown at “3” and “4” in Figure 10.
• Close the media cover to lock the peeler bail in place. The
media will feed between the peeler bail and platen.
Figure 10: Activating Peeler Bar (QLn320 Shown)
Peeler Bail (Pull up
and ip down if using
media in pell-o mode
4
Peeler Lever
Latch Release
Lever
• Turn on the printer or press the Feed button on the front of
the printer if the printer is already on. The printer will advance the
media to the next label, if printing labels. If you are printing on
journal media, the printer will advance a short strip of media.
To disengage the peeler bail, first open the media cover as pre-
viously described. The peeler bail will automatically return to the
Up position.
Press straight down on the peeler bail to lock it in place in its
original home position.
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QLn Series User Guide
Loading Media in Peel-off Mode (QLn420)
• If you plan to use the printer in the peel-off mode, peel a
few labels off of the media and load the media as previously
described.
• Close the media cover.
• Lift up on the peeler lever located on the side of the printer
below the media cover button.
• Lock the peeler lever in the “up” position to fully engage
the peeler bail.
Figure 11: Activating Peeler Bar (QLn420 Shown)
Peeler Bail
Media Cover
Button
Peeler Lever
• Turn on the printer or press the Feed button on the front
of the printer if the printer is already on. The printer will
advance the media to the next label, if printing labels.
If you are printing on journal media, the printer will advance
a short strip of media.
Note • Peeler will not work with most synthetic label stock since that
media is softer and tends to adhere to its liner. However, the QLn420
printer is fully capable of printing on synthetic labels.
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QLn Series User Guide
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