Rhein Tech Laboratories Client: Zebra Technologies
360 Herndon Parkway FCC: Part 15.247
Suite 1400 Industry Canada: RSS-210
http://www.rheintech.com
M/N: QL420
FCC ID: I28-QL420352 Herndon, VA 20170
APPENDIX I: MANUAL
Please see the following pages.
Page 52 of 70
UMAN-QL4 Rev.B March, 2003
Proprietary Statement
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.
FCC Compliance Statement
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to Part 15 of FCC Rules. These limits are designed to provided reasonable
protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not
installed and used in accordance with the instruction manual, may cause harmful interference to
radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense.
WARNING: Exposure to Radio Frequency radiation. To conform to FCC RF exposure requirements this device shall be used in accordance with the operating conditions and instructions
listed in this manual. Note that there are several radio options available with this printer. Additional regulatory information is contained in later sections devoted to each radio individually.
NOTE: This unit was tested with shielded cables on the peripheral devices. Shielded cables
must be used with the unit to insure compliance.
Changes or modifications to this unit not expressly approved by Zebra Technologies Corporation could void the user’s authority to operate this equipment.
Canadian Compliance Statement
This Class B digital apparatus complies with Canadian ICES-003.
Cet appareil numérique de la classe B est conforme á la norme NMB-003 du Canada.
"IC:" before the equipment certification number signifies that the Industry Canada technical
specifications were met. It does not guarantee that the certified product will operate to the user's satisfaction.
Agency Approvals and Regulatory Information
• Built to UL and CSA standards
• Canadian STD RSS-210
• EN55022:1998 Class B European Electromagnetic Radiation Standard
• EN55022:1998 European Immunity Standard
• EN60950: 2000 Safety Standard
• NOM/NYCE (Mexico)
• C-Tick (Australia)
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 errors and disclaims liability result-
ing therefrom.
No Liability for Consequential Damage
In no event shall Zebra Technologies Corporation or anyone else involved in the creation, production, or delivery 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 system described therein are owned by Zebra Technologies Corporation. All rights are reserved. Unauthorized reproduction of this manual or the software in any of the system modules 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 liability.
All products and brand names are trademarks of their respective companies. All rights re-
Thank you for choosing our Zebra QL 420 Mobile Printer. This
rugged printer is sure to become a productive and efficient addition to your workplace thanks to its innovative design. Because
it’s made by Zebra Technologies Corporation, you’re assured of
world-class support for all of your bar code printers, software,
and supplies.
• This user’s guide gives you all the information you’ll need
to operate the QL 420 printer.
• The QL 420 uses the CPL programming language. To create and print labels using the CPL language, refer to the
Mobile Printer Programming Guide (available on our website at:
Label Vista™ label creation program.
• The QL 420 has an optional interpreter for the ZPL II
gramming Language which interprets commands up to X.8
firmware. The printer must be equipped with the optional
memory upgrade and appropriate application in order to
use this function. A ZPL II Program Guide (part #46530L)
can be used as reference for the ZPL II label design programming language. If either manual was not ordered
with the printer, simply call your re-seller or Zebra Technologies Corporation or visit the Zebra web site.
http://www.zebra.com/SS/manuals.htm)
Unpacking and Inspection
Inspect the printer for possible shipping damage:
• 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
material.
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.
and our
®
Pro-
QL 420 User’s Guide7
Belt Clip
Charger Jack
LI72 Charger
F
IGURE
2: I
NSTALLING THE BATTERY
Battery
Charger Jack
F
IGURE
3: S
INGLE CHARGER
8QL 420 User’s Guide
Getting Ready to Print
Battery
Installing the Battery
NOTE: Batteries are shipped uncharged. Remove
protective shrink-wrap and labels from new battery packs prior
to use.
1. Rotate the Belt Clip to allow access to the Battery compartment.
2. Insert the battery into the printer as shown in Figure 2,
3. Rock the Battery into the printer 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 (see “Charging the Battery” below and “Operator Controls”).
Charging the Battery
If you are using the LI 72 single battery charger:
Refer to Figure 3. Your battery charger may look slightly different from the ones illustrated.
1. Install the battery in the printer and plug the Charger into
the appropriate A.C. wall receptacle. Then insert the
charge cable into the battery charger jack.
2. The charger LED will indicate the status of the charger as
follows:
• A steady light indicates the battery is undergoing a fast
charge.
•A slow blinking light indicates the charger is in trickle
mode. The battery is ready for use.
•A rapidly blinking light indicates a problem with the battery.
The battery may have an internal short, or its charge monitoring circuitry may be malfunctioning. The battery should
not be used any further.
• Battery Packs may be charged either when installed in the
printer or when removed.
Do not attempt to charge batteries with the LI 72 while
printing. Attempting to print while charging can result in
improperly charged batteries.
continued on next page
QL 420 User’s Guide9
If you are using the Quad Charger:
The UCLI72-4 Quad Charger is designed to charge up to four
QL 420 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. Remove any protective shrink-wrap and labels from all battery packs prior to use. Plug a battery pack into any one of the
four charging bays as shown in Figure 4, noting the orientation of
the battery pack. Slide the battery pack into the charging bay until it stops. 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.
The indicators under the battery will allow you to monitor the
charging process per the table below:
AmberGreenBattery Status
OnOffCharging
OnFlashing80% charged (O.K. to use)
OffOnCompletely Charged
FlashingOffFault
Note: 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.
These times are for completely discharged batteries.
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.
10QL 420 User’s Guide
1. Slide Battery
Pack into
Charger bay
2. Rock
Battery
Pack into
place
F
a
s
t C
h
a
F
a
u
lt
Amber
Indicator
Green indicator
Power Supply
r
g
e
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h
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R
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R
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F
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g
a
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e
lt
R
e
a
d
y
P
o
w
e
Charger Bay
r
Power
indicator
F
IGURE
4: Q
UAD CHARGER
The UCLI72-4 Quad Charger has a safety feature which
stops charging a battery after six hours regardless of its
charge state.
Battery Safety
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.
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.
Charger Safety
Use care in locating the Quad Charger. Do not place it in
locations where liquids or metallic objects may be dropped
into the charging bays. Do not block the ventilating slots on the
top and bottom covers. Insure that the Charger is plugged into
a power source which won’t accidently be turned off if you will
be charging batteries overnight.
QL 420 User’s Guide11
Loading the Media
You can operate this printer 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.
Installing the Media
1. Open the printer: Refer to Figure 5.
• Press the latch release button on the side of the printer as
shown at “1” below. The latch assembly will flip open automatically
• Pull up on the latch assembly as shown at “2” to unlatch
the Media Cover.
• Rotate the media Cover back as shown at “3”, exposing
the media compartment and the adjustable media supports.
Media Supports
F
IGURE
5: O
PENING THE
12QL 420 User’s Guide
QL 420
Media
Compartment
2. Load the media:
Loading media from an internal supply. Refer to Figure 6.
• Pull the media supports apart, insert the roll of media between them, and let the media supports close. Insure that
the media pulls off the core in the direction shown in Figure 6. The supports will adjust themselves to the width of
the media, and the media should be able to spin freely on
the supports.
Media Roll
Note direction
media pulls off the
roll.
Pull Media Supports
apart.
F
IGURE
6: I
NSTALLING MEDIA IN THE
QL 420 User’s Guide13
QL 420
continued on next page
2A. Load the media (continued):
Loading media from an external supply. Refer to Figure 7.
The QL 420 has a loading slot in the rear of the media compartment which allows you to use standard 4” (101.6 mm) wide
fan-fold media from an external supply. The external supply
must be designed such that it does not exert excessive drag as
media is fed through the printer, which could result in distorted
printing.
• Pull the media supports apart, insert a Media Spacer (Zebra part number BA16625-1) between them, and let the
media supports close. Insert the media from the external
supply through the rear feed slot, between the media
guides and up through the media compartment as shown.
Make sure the side of the media you will be printing on
faces the print head.
F
IGURE
7: I
NSTALLING MEDIA FROM AN EXTERNAL SUPPLY
14QL 420 User’s Guide
Media Spacer
p/n BA16625-1
Feed media
through rear
feed slot
Surface of
media to be
printed must
face the printhead
3. Close the Media Cover Refer to Figure 8.
• If you plan to use the printer in the tear-off mode, close the
media cover as shown at “2”, then rotate the latch assembly as shown until it locks into place, as shown at “4”.
• If you plan to use the printer in the peel-off mode, peel a
few labels off of the media and pull it out of the printer as
shown at “1”. Close the media cover as shown at “2”. Rotate the “EZ-Peel” peeler bar until it locks into place on the
latch, as shown at “3”, then rotate the Latch as shown until
it locks into place, as shown at “4”.
•Turn on the printer or press the Feed button 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 and will then be
ready for printing.
Pull Media out of
Printer
Media Cover
“EZ-Peel” Peeler Bar
Flip down if using
media in the peeloff mode.
Latch Assembly
F
IGURE
8: C
LOSING THE
QL 420 User’s Guide15
QL 420
Operator Controls
The QL 420 will come with one of two possible control panels.
The standard control panel is detailed below and in Figure 9.
The optional control panel (Figure 10) features an LCD which
allows easy display and selection of many printer functions detailed on following pages.
Standard Keypad
The standard keypad has three control buttons and two multipurpose indicators.
• The Power button turns the QL 420 on and off.
• The Feed button advances a length of media which is determined by the type of media being used. Label media
will be advanced to the next gap or bar sense marker.
Journal (plain) media will be advanced a length determined by the printer’s software.
• The Function button is controlled by a printer’s specific application to support such functions as:
Print a battery level report.
Print the Local Area Network (LAN) status
Print a Short Range Radio Frequency (SRRF) status
Print a media supply report
The green LED on the left side of the control panel indicates
the status of several printer features:
•A slowly blinking sequence indicates the printer’s battery
needs charging.
• Printers with a wireless QuickLink module installed: a
quickly blinking sequence indicates the printer has not established a link to either a Local Area Network or a compatible wireless equipped terminal.
• Printers with a wireless QuickLink module installed: A
steadily lit indicator shows that the printer has established
a wireless link, either to the LAN or to a compatible terminal.
A steadily lit green indicator on a non-wireless printer is a
power-on indicator.
The yellow LED on the right side of the control panel has two
indication conditions.
•A rapidly blinking yellow LED and a chime indicate that no
application has been loaded into the printer.
16QL 420 User’s Guide
• Printers with a wireless QuickLink module installed: a rapidly blinking LED indicates normal data transmission.
•A steadily lit yellow LED indicates an error condition. This
can be caused by one of the following:
1. The media cover is not completely closed and latched.
2. The printer is out of media.
Yellow LED
Steady Light indicates error
condition: out of media or
media cover not closed.
Green LED
Steady Light indicates power on
and/or established RF link.
Fast Blink indicates no RF link (on
RF equipped units only)
Slow Blink means low battery
Power Button
Press to turn unit
on. Press again to
turn unit off
Fast Blink indicates RF activity (on RF equipped units
only)
Fast blink with beeper indicates no application loaded
Feed Button
Press to advance the media one blank label or a
software determined length
of journal media.
F
IGURE
Function Button
Specific functions are under
printer application control.
9: S
TANDARD CONTROL PANEL
continued
QL 420 User’s Guide17
LCD Control Panel
The optional LCD control panel has buttons for the power on/
off and media feed functions just as in the standard control panel. In addition, it has two keys which allow easy navigation and
selection of menu options affecting many printer functions.
The “Scroll” button allows scrolling through the various options
and settings. The “Select” button allows selection of the option
or function displayed on the screen.
Feed Button
Press to advance the
media one blank
label or a software
determined length of
journal media.
Scroll Button
Press to scroll
through the menu
choices on the
LCD.
Printer Status Icons
Indicates the status
of several printer
functions
Power Button
Press to turn unit on.
Press again to turn unit
off
F
IGURE
LCD
See LCD Functions Table for an
overview of menu options
10: O
PTIONAL
LCD C
ONTROL PANEL
18QL 420 User’s Guide
Select Button
Press to select a
menu choice on
the LCD.
The top of the screen has a row of status icons which indicate
the state of various printer functions:
Indicates that the printer is associated with a wireless Local Area Network (LAN). This icon is functional only with
QL 420N network printers.
A flashing icon indicates low battery status. You
should suspend any printing operations and recharge or
replace the Battery Pack as soon as is convenient.
A flashing icon indicates that the media cover is open or
not properly latched.
A flashing icon indicates that a file is being download-
ed to the printer.
A flashing icon indicates that the printer does not detect
any media. This could indicate an out of media condition,
or improperly loaded media.
In addition to the status icons, the LCD control panel can display many of the printer’s settings and functions as text. Applications can be written to allow the user to view and /or modify
these settings using the scroll and select keys on the display.
Refer to the “LCD Functions Table” on the following page for the
full set of printer features that can be made available with the
LCD panel.
The LCD has a backlighting option which allows viewing of the
screen in a dark environment, or provides better contrast in a
very bright environment. Use of the display backlight will decrease the time the printer will run between charges. Refer to
the section “Extending Battery Life” for more information.
QL 420 User’s Guide19
LCD Functions
FunctionDefault settingScroll & Select Options
Sensor TypeGap• Bar
• Gap
Baud Rate19200• 9600
• 19200
• 32400
Data Bits8• 7
•8
WLAN ID*Factory SetN/A
Value
Label Top000• Increase (+120 dots max.)
• Decrease (-120 dots max.)
Left Position000• Increase (+120 dots max.)
• Decrease (-120 dots max.)
LCD Contrast0• Increase
• Decrease
No-activity Timeout*60 sec.• 60 sec.
•5 min.
• 10 min.
• 30 min
• Custom
Tear-off Position00• Increase (+120 dots max.)
• Decrease (-120 dots max.)
Media TypeLabel• Label
• Journal
Media Width Sensing†Off• On
•Off
• Display Width
LCD BacklightOff• On
•Off
• Momentary On w/
time delay
Factory Reset No• No
(Resets all to• Yes
factory set values)
* Some parameters, such as the WLAN ID number and non-standard no-activity
time out values can be set using a PC running Zebra’s Label Vista label creation
program and a data cable link to the printer.
† Media width sensing is an option. Display for this option may not be visible, or
selection options may change, depending on the printer’s application.
20QL 420 User’s Guide
Verify the Printer Is Working
Before you connect the printer to your computer or portable
data terminal, make sure that the printer is in proper working order. You can do this by printing a configuration label using the
“two key reset” method. If you can’t get this label to print, refer to
“Troubleshooting”.
Printing a Configuration Label
1. Turn the printer off. Load the media compartment with
journal media (media with no black bars printed on the
back)
2. Press and hold the Feed Button.
3. Press and release the Power button and keep the Feed
button pressed. When printing starts, release the Feed
button.
The unit will print a line of interlocking “x” characters to insure all elements of the print head are working, print out the version of software loaded in the printer and then print two reports.
The first report indicates model, ROM version, serial number,
baud rate, etc. The second report prints out more detailed information on the printer’s configuration and parameter settings.
If no second report appears, there is no application loaded. (See
the Troubleshooting Section for a sample print-out and a further
discission on how to use the configuration label as a diagnostic
tool.)
Connecting the Printer
The printer must establish communications with a host terminal
which sends the data to be printed. Communications occur in
four basic ways:
• By a cable between the printer and its host terminal
• Linking to a host terminal via Infrared (usually by means of
the industry standard IrDA protocol)*
• By means of a Bluetooth™ short range radio frequency
link.
• By means of a wireless LAN (Local Area Network) per
802.11b specifications†.
* The IR option has not been released at time of printing
† The802.11b WLAN option has not been released at time of printing
QL 420 User’s Guide21
Cable Communications
CAUTION. The power should be turned off before
connecting or disconnecting the communications cable.
All QL 420 printers can communicate by cable; the specific cable supplied with your printer will vary with the host terminal. The
8- pin circular connector on your communications cable plugs
into the serial communications port on the side of the QL 420
printer, which is protected by a weather resistant flap. The connector is keyed to assure correct alignment; do not try to force
the cable if it does not plug in. The other end of the cable must
be plugged into the host terminal as shown in Figure 11, or to a
serial port on a computer (Figure 12.) Communications between
the terminal and the printer are controlled by the applications
QL 420
Communications
Port
F
IGURE
11: C
F
IGURE
12: C
22QL 420 User’s Guide
Communications Cable to Terminal
Part number varies. Refer to Appendix A.
ABLE COMMUNICATIONS
Serial Communications Cable to
Computer
Refer to Appendix A for part numbers.
OMMUNICATIONS WITH A
P.C.
running on the terminal and the printer.
IR Communications
(This option not released at time of printing)
Printers equipped for infrared (IR) communications are identified by a small “IR” logo on the unit’s label. IR allows wireless
communications between the printer and the host terminal. IR
units can also communicate with a cable as detailed above, however, IR functions are disabled when the cable is plugged in. QL
420 units with the IR option can be configured to conform to the
standard IrDA communications protocol
Linking a Printer to an IrDA Host
IrDA compliant terminals will automatically initiate communications to the printer. First insure that there is a direct line of sight
between the printer and the terminal that will be sending data.
The IR window on the front of the QL 420 must face the corresponding window on the terminal to properly send and receive
signals. An IrDA compliant terminal will seek out any linkable devices and establish communications between them, even turning
the printer on if necessary.
PRELIMINARY SPECIFICATIONS
1M (39”)
Area of IR Window
F
IGURE
13: IR C
QL 420 User’s Guide23
OMMUNICATIONS
Wireless Communications with Bluetooth™
The following section only applies when the Bluetooth Module (FCC ID: I28MD-BTC2-E)
is installed in the QL 420 printer (note that only one of the radio options can be installed in the printer at one time).
“Bluetooth” is a worldwide standard for the exchange of data
between two devices via radio frequencies. Bluetooth radios are
relatively low powered to help prevent interference with other devices running at similar radio frequencies. This limits the range
of a Bluetooth device to about 10 meters (about 32 feet).
Both the printer and the device it communicates with must follow the Bluetooth standard.
Exposure to Radio Frequency Radiation
The radiated output power of this internal wireless radio is far
below the FCC radio frequency exposure limits. Nevertheless,
this Bluetooth radio must be used in such a manner that the
antenna is 2.5 cm or further from the human body.
The radio and antenna are mounted internally in this printer in
such a way that, when the printer is used in a standard
configuration (belt clip, soft case, shoulder strap), the 2.5 cm
distance from the users body will be met. Do not use the printer
in an unauthorized manner.
The internal wireless radio operates within guidelines found in
radio frequency safety standards and recommendations. The
level of energy emitted is far less than the electromagnetic
energy emitted by wireless devices such as mobile phones.
European Regulatory Information for this Radio
AUSBDKFIN
FDGRIRE
ILUXNLP
ESUK
Note: -Member states in the EU with restrictive use for this device are
crossed out!
This device is also authorized for use in all EFTA member states (CH, ICE,
LI, NOR)
Important Notice:
This device is a portable RF printer intended for commercial and industrial
use in all EU and EFTA member states except in France where restrictive
use applies.
Please refer to the regulatory information pages in the user manual for
further details.
Europe EU Declaration of Conformity
This device complies with the essential requirements of the R&TTE
Directive 1999/5/EC. The following test methods have been applied in
order to prove presumption of compliance with the R&TTE Directive 1999/
5/EC:
24QL 420 User’s Guide
•EN 300 328-2 V1.2.1 (2001-12)- Technical requirements for
spread spectrum radio equipment
•EN 300 328-2 V1.1.1 (2000-09)- EMC requirements for spreadspectrum radio equipment
In France there are restrictions in the use of this device. A restricted
frequency band exists in France. When operating this device on French
territory you may only use channels 10 and 11 (2457 and 2463 MHz). It is
not allowed to operate this device at any other frequency supported by the
device. For more information see http://www.anfr.fr/
Bluetooth™ Networking Overview
In order to exchange data, two Bluetooth enabled devices
must establish a connection. Bluetooth software is always running in the background, ready to respond to connection requests.
One device (known as the
connection with another. The second device (the
server
) then accepts or rejects the connection. A Bluetooth en-
master
or the
client)
must request a
slave
or the
abled QL 420 will normally act as a slave, but in theory any Bluetooth device can be either a master or a slave. This miniature
network is sometimes referred to as a “piconet” and can consist
of several Bluetooth enabled devices.
Each Bluetooth QL 420 has a unique Bluetooth Device Address
(BDA) loaded into its Quick Link module when manufactured.
For the most part, communications using the Bluetooth protocol
are initiated and processed without any operator intervention,
much like the IrDA system described previously.
QL 420 User’s Guide25
Wireless Local Area Network (WLAN) Module Using CF
Radio
The following section only applies when the CF (Compact Flash) WLAN module (With
FCC ID: I28MD-QL4137) is installed in the QL 420 printer (note that only one of the
radio options can be installed in the printer at one time). The FCC ID number label is
on the front of the module and can be read with the module installed.
WARNING: Use of the QL 420 with the radio module marked
“with FCC ID: I28MD-QL4137” meets the FCC requirements for
radio frequency (RF) radiation exposure in the standard body
worn configuration with no minimum separation. In this
configuration, which applies whether the belt clip or shoulder
strap is used, the face of the printer from which paper is
transported is facing away from the user’s body. The standard
configuration must always be used when the printer is body
worn.
The printer with this radio option has been SAR tested. The
maximum SAR value measured was 1.1W/kg averaged over 1
gram.
European Regulatory Information for this Radio
AUSBDKFIN
FDGRIRE
ILUXNLP
ESUK
Note: -Member states in the EU with restrictive use for this device are
crossed out!
This device is also authorized for use in all EFTA member states (CH, ICE,
LI, NOR)
Important Notice:
This device is a portable RF printer intended for commercial and industrial
use in all EU and EFTA member states except in France where restrictive
use applies.
Please refer to the regulatory information pages in the user manual for
further details.
Europe EU Declaration of Conformity
This device complies with the essential requirements of the R&TTE
Directive 1999/5/EC. The following test methods have been applied in
order toprove presumption of compliance with the R&TTE
Directive 1999/5/EC:
•EN 300 328-2 V1.2.1 (2001-12)- Technical requirements for spreadspectrum radio equipment
•EN 301 489-17 V1.1.1 (2000-09)- EMC requirements for spreadspec-trum radio equipment
In France there are restrictions in the use of this device. A restricted
frequency band exists in France. When operating this device on French
territory you may only use channels 10 and 11 (2457 and 2463 MHz). It is
not allowed to operate this device at any other frequency supported by the
device. For more information see http://www.anfr.fr/
26QL 420 User’s Guide
Wireless Local Area Network (WLAN) Module Using
PCMCIA Radio
The following section only applies when the PCMCIA WLAN module (FCC ID: I28QL420352) is installed in the QL 420 printer (note that only one of the radio options can
be installed in the printer at one time). The FCC ID number label is on the front of the
module and can be read with the module installed.
WARNING: Use of the QL 420 with the radio module marked
with FCC ID: I28-QL420352 meets the FCC requirements for
radio frequency (RF) radiation exposure in the standard body
worn configuration with no minimum separation. In this
configuration, which applies whether the belt clip or shoulder
strap is used, the face of the printer from which paper is
transported is facing away from the user’s body. The standard
configuration must always be used when the printer is body
worn. This configuration maintains the required 1 cm separation
distance.
The printer with this radio option has been SAR tested. The
maximum SAR value measured was 1.04. W/kg averaged over
1 gram.
European Regulatory Information for this Radio
AUSBDKFIN
FDGRIRE
ILUXNLP
ESUK
Note: -Member states in the EU with restrictive use for this device are
crossed out!
This device is also authorized for use in all EFTA member states (CH,ICE, LI, NOR)
This device is a portable RF printer intended for com-
0336
Europe EU Declaration of Conformity
This device complies with the essential requirements of the R&TTE
Directive 1999/5/EC. The following test methods have been applied in
order to prove presumption of compliance with the R&TTE Directive 1999/
5/EC:
• EN 300 328-2 V1.2.1 (2001-12)- Technical requirements for spreadspectrum radio equipment
• EN 301 489-17 V1.1.1 (2000-09)- EMC requirements for spreadspectrum radio equipment
In France there are restrictions in the use of this device. A restricted
frequency band exists in France. When operating this device on French
territory you may only use channels 10 and 11 (2457 and 2463 MHz). It is
QL 420 User’s Guide27
mercial and industrial use in all EU and EFTA member
states except in France where restrictive use applies.
Please refer to the regulatory information pages in the
user manual for further details.
Important Notice:
continued on next page
not allowed to operate this device at any other frequency supported by the
device. For more information see http://www.anfr.fr/
WLAN Overview
QL 420 Printers can be equipped with a radio in the standard
PCMCIA footprint using the industry standard 802.11 or 802.11b
protocol. These printers will have the FCC I.D. number of the radio on the product label. They allow wireless communication as
a node within a local area network, (LAN) and its wireless capabilities allow communications from any point within the LAN’s perimeter. Methods of establishing communications to the QL 420
will vary with each LAN application.
QL 420
be identified by the text “Network Printer” and FCC ID number
I28-QL420352
Methods of establishing communications to the QL 420 will
vary with each LAN application. General information on establishing WLAN communications can be found in the Programmers
Manual available on -line at:
Network Printers printers with the PCMCIA module can
on the front of the unit.
http://www.zebra.com/SS/manuals.htm
More information and LAN configuration utilities may also be
found in Zebra’s Label Vista™ program (version 2.8 and later).
Label Vista may be downloaded from the Zebra website at:
http://www.zebra.com/SD/product_LabelVista.htm
PRELIMINARY SPECIFICATIONS
28QL 420 User’s Guide
Setting Up the Software
The QL 420 uses Zebra’s CPL Programming language which
was designed for mobile printing applications. CPL is fully described in the Mobile Printing Systems Programming Manual,
available on-line from Zebra’s website at:
http://www.zebra.com/SS/manuals.htm
You can also use Label Vista™, Zebra’s Windows™ based label creation program which uses a graphical interface to create
and edit labels in the CPL language. Label Vista is available either on-line at Zebra’s website, or on the Zebra accessories CD
(part number 46984).
The QL 420 with its optional memory upgrade can support an
interpreter for ZPL II
desktop printers. To use ZPL II, refer to the ZPL II Programming
Guide. If you choose to use a third party label preparation system, follow the installation instructions included in the package.
®
, the programming language used by Zebra
.
QL 420 User’s Guide29
Using the Accessories
Belt Clip
Refer to Figure 14.The QL 420
is equipped with a belt clip. To
use: hook the clip over your belt,
and ensure that the clip is securely attached to the belt. The
belt clip will pivot to allow you to
move freely while wearing the
printer.
F
IGURE
14: THE QL 420 B
Clip printer to
belt
Printer can
pivot freely
ELT CLIP
Pull Strap here
to lengthen
Adjustable Shoulder
Strap
Refer to Figure 15. If
your printer is equipped
for the shoulder strap option: snap each end of
Pull Strap here
to shorten
the shoulder strap into
the “D” rings in the top of
the printer. Slide the
buckle away from or towards the printer until you
achieve the desired
length.
F
IGURE
15: O
PTIONAL SHOULDER STRAP
30QL 420 User’s Guide
Snap in to “D”
rings on printer
Hold Buckle
Preventive Maintenance
Extending Battery Life
• Never expose the battery to direct sunlight or temperatures over 104° F (40° C).
• Always use a Zebra charger designed specifically for Lithium-Ion batteries. Use of any other kind of charger may
damage the battery.
• Choose the media that is easiest to “burn.” An authorized
Zebra re-seller can help you determine the optimum media for your application.
• If you print the same text or graphic on every label, consider using a pre-printed label.
• Choose the correct print darkness, and print speed for
your media.
• Use software handshaking (XON/XOFF) whenever possible.
• Select Tear-Off mode whenever possible (Peel-Off mode
uses more power).
• If your printer has the optional LCD display, use the display backlight only when necessary. Turn it off whenever
it is not needed.
• Pull the battery out of the printer if the printer won’t be
used for a day or more and you’re not performing a maintenance charge.
• Consider purchasing an extra battery.
• Remember that any rechargeable battery will lose its ability to maintain a charge over time. It can only be recharged a finite number of times before it must be replaced.
continued on next page
QL 420 User’s Guide31
Cleaning
CAUTION- Use only cleaning agents specified below. Zebra
Technologies Corporation will not be responsible for damage
caused by any other cleaning materials used on this printer.
Clean the printer with either the cleaning pen supplied with the
printer or a cotton swab saturated with alcohol.
WARNING: To avoid possible personal injury or damage to
the printer, never insert any pointed or sharp objects into the
printer.
AreaMethodInterval
Use the supplied cleaning pen or 70%
Printhead
(Figure 16)
I
Platen
Roller
(Figure 16)
isopropyl alcohol on a cotton swab to
clean the print elements from end to end
(the print elements are located in the thin
gray line on the printhead).
Rotate the platen roller and clean it
thoroughly with the cleaning pen or 70%
isopropyl alcohol and a cotton swab.
Units with linerless platens: Rotate
platen & clean bearing points only.
Avoid
use of alcohol on the surface of linerless
platens!
After every five
rolls of media (or
more often, if
needed)
Linerless media
requires more
frequent cleaning.
Peel bar
(Figure 16)
Tear bar
(Figure 16)
Exterior
Interior
(Figure 16)
Media Rollers
(Figure 16)
Clean thoroughly with the cleaning pen or
70% isopropyl alcohol and a cotton swab.
Clean thoroughly with the cleaning pen or
70% isopropyl alcohol and a cotton swab.
Water-dampened cloth
Brush/air blow. Insure the Bar Sensor, Gap
Sensor and Label Present Sensor windows
are free of dust.
Units with linerless platens:
Clean inside surfaces of edge guides and
media support rollers with the supplied
cleaning pen or 70% isopropyl alcohol on a
cotton swab.
Clean thoroughly with the cleaning pen or
70% isopropyl alcohol and a cotton swab.
Units with linerless platens: Rotate media
rollers & clean bearing points only.
use of alcohol on the surface of the
media rollers!
32QL 420 User’s Guide
Avoid
As needed
After every five
rolls of media
(or more often,
if needed)
After every five
rolls of media
(or more often,
if needed)
Peeler Bar Rollers
Tear Bar
Printhead
Elements
Bearing Points
Linerless Platens only
Label Presence
Sensor
Peeler Bar
Media Roller
Platen surface
Avoid using alcohol
on linerless platen
surface
Edge Guides, Inner
surfaces on both
sides.
Units with linerless
platens only.
Bearing Points
Linerless Platens only
F
IGURE
Bar Sensor
16: C
Media Roller
Avoid using
alcohol on
linerless
media roller
surfaces
LEANING THE
QL 420
QL 420 User’s Guide33
Gap Sensor
Troubleshooting
Standard Control Panel
If the printer is not functioning properly, refer to the chart below
to find the state of the two LEDs on the Control Panel. Then refer to the Troubleshooting topic referenced in the chart to resolve
the problem.
Media Cover not closed
SteadyFast BlinkNormal RF activity8
SteadyFast Blink,No application8
Beeper Sounds
Optional LCD Control Panel
The top of the display shows several icons which indicate various printer functions. Check the indicator status, then refer to the
Troubleshooting topic referenced in the chart to resolve the problem.
Status IconConditionIndicationRef. to Topic
SteadyRF Link establishedn/a
OffNo RF Link6
FlashingLow Battery3, 6, 7
FlashingHead latch not closed9, 11
FlashingPrinter is receiving a file8
FlashingOut of media,9, 11
Blank Screenn/aNo application1,13
34QL 420 User’s Guide
Troubleshooting Topics
1. No power
• Check that battery is installed properly
• Recharge or replace battery as necessary.
2. Media does not feed:
• Be sure print head is closed and latched.
• Check spindle holding media for any binding.
• If unit is equipped with label presence sensor:
Insure most recently printed label is removed.
Also insure label sensor is not blocked.
3. Poor or faded print or flashing:
• Clean print head.
• Check battery and recharge or replace as necessary
• Check quality of media.
4. Partial/missing print:
• Check media alignment
• Clean print head.
• Insure printhead is properly closed and latched.
5. Garbled print:
• Check baud rate.
6. No print:
• Check baud rate
• Replace battery
• Check cable to terminal
• Establish RF Link (Wireless units only) or restore LAN
associativity (QL 420N models only)
• Invalid label format or command structure — put printer in
Communications Diagnostic (Hex Dump) Mode to diagnose
problem.
7. Reduced battery life
• Check battery date code — if battery is one to two years old,
short life may be due to normal aging.
• Recondition battery.
• Replace battery.
8. Yellow error light or flashing:
• No application or application corrupted: reload program.
• If using wireless communications: flashing indicator is normal
while data is being transmitted or received.
continued on next page
QL 420 User’s Guide35
9. Yellow error light always on, or flashing:
• Check media is loaded and print head is closed and
securely latched.
10. Skips labels:
• Check media for top of form sense mark or label gap.
• Check that the maximum print field has not been exceeded
on label.
• Insure bar/ or gap sensor is not blocked or
malfunctioning
11. Communication Error:
• Check media is loaded, head is closed and error
light is off.
• Check baud rate.
• Replace cable to terminal.
12. Label Jam:
• Open head release latch and media cover.
• Generously apply alcohol to printer in area of
jammed label.
13. Blank LCD Screen (only for units with optional LCD
control panel)
• No application loaded or application corrupted: reload
program.
Troubleshooting Tests
Printing a Configuration Label
To print out a listing of the printer’s current configuration follow
these steps:
1. Turn the printer off. Load the media compartment with
journal media (media with no black bars printed on the
back)
2. Press and hold the Feed Button.
3. Press and release the Power button and keep the Feed
button pressed. When printing starts, release the Feed
button.
36QL 420 User’s Guide
Sample Configuration Label
Print Head Test
End of First Report
Unit Serial Number
Application Number
Report appears only on
units with wireless
options installed.
Units with no wireless
options will print an
empty line and resume
This example has a
Bluetooth™ module
installed. (refer to
pages 24-25 for more
details.)
F
IGURE
17: C
ONFIGURATION LABEL
continued on next page
QL 420 User’s Guide37
Sample Configuration Label (continued)
Peripherals installed:
In this example the
LCD display option is
not installed.
Flash Memory Size
Maximum Label Size
F
IGURE
17A: C
ONFIGURATION LABEL
38QL 420 User’s Guide
Resident Fonts
Pre-scaled font (.cpf)
listed separately
Files Loaded in Printer
Memory (will include
Pre-scaled or Scalable
Fonts)
Amount of Memory
Available
Communications Diagnostics
If there’s a problem transferring data between the computer
and the printer, try putting the printer in the Communications Diagnostics Mode (also referred to as the “DUMP” mode). The
printer will print the ASCII characters and their and their text representation (or the period ‘.’, if not a printable character) for any
data received from the host computer
To enter Communications Diagnostics Mode:
1. Print a configuration label as described on pg. 37.
2. At the end of 2nd diagnostics report, the printer will print:
“Press FEED key to enter DUMP mode”.
3. Press the FEED key. The printer will print: “Entering
DUMP mode”.
Note: If the FEED key is not pressed within 3 seconds, the printer will print “DUMP mode
not entered” and will resume normal operation.
4. At this point, the printer is in DUMP mode and will print the
ASCII hex codes of any data sent to it, and their text representation (or “.” if not a printable character).
Additionally, a file with a “.dmp” extension containing the ASCII
information will be created and stored in the printer’s memory. It
can be viewed, “cloned” or deleted using the Label Vista application. (Refer the Label Vista documentation for more information.)
To terminate the Communications Diagnostics Mode and return
the printer to normal operations:
1. Turn the printer OFF.
2. Wait 5 seconds.
3. Turn the printer ON.
Calling the Help Desk
If the printer fails to print the configuration label, or you encounter problems not covered in the Troubleshooting Guide, contact
the Help Desk. Help Desk addresses and phone numbers for
your area can be found in Appendix D of this manual. The Help
Desk will need the following information:
• Model number/type (e.g. QL 420)
• Unit serial number (Found on the large label on the back
of the printer, also found in the configuration label printout.
Refer to Figure 17)
• Product Configuration Code (PCC) (15 digit number found
on the small label on the back of the unit)
QL 420 User’s Guide39
Specifications
NOTE.- Printer specifications are subject to change without notice.
Printing Specifications
Print Density203 dots/inch (8 dots/mm)
Print WidthUp to 4.09“ (103.8 mm)
Print Speed3” per second (76.2 mm per
Print Head Life,1,964,160” (50 Km) nominal
calculated
Distance from.571” (14.5 mm)
Print Element116 dots
to Top of Form
second)
Memory/Communications Specifications
Flash Memory1 MB flash (standard)
SRAM Memory1MB SRAM (standard)
StandardRS-232 serial port (8 Pin circular DIN connector)
CommunicationsConfigurable Baud rate (from 9600 to 57.6 Kbps),
Optional WirelessBluetooth compatible 2.4 GHz SRRF link
Communications
parity and data bits.
Software (X-ON/X-OFF) or hardware (DTR/STR)
communication handshake protocols.
Infrared wireless link (meets IrDA 1.1 communications
specifications) 2,400 to 115,200 Baud rate*
Optional wireless LAN capabilities comply with 802.11
and 802.11b protocols*
* The IR and WLAN options have not been released at time of printing.
40QL 420 User’s Guide
Label Specifications
Label/Tag Width2" to 4.1" (50.8 mm to 104.1 mm)
Max. Label/20" (508 mm) with standard memory
Tag Length
Inter-label Gap..08" to .16" (.12" preferred)
Label Thickness.0025” to .0065” (.064 mm to .165 mm)
Tag Thickness.0060” (.152 mm) maximum
Label Roll Size:
Max. Diameter2.625" (66.7 mm) O.D.
Media RequirementsMinimum mark width: 0.5” (12.7mm) perpendicular to
2 mm to 4 mm (3 mm preferred)
Use Zebra-brand direct thermal media that is outside
wound. Media may be reflective (black mark) sensing
or transmissive (gap) sensing, die-cut, continuous,
fanfold or linerless.
For die-cut labels, use only full auto dies.
The reflective media black marks should extend past
the centerline of the roll.
Black Mark Dimensions:
edge of media, centered within the width of the roll.
Mark length: 0.094” (2.4 mm) parallel to edge of
media
Font/Bar Code Specifications
Five resident scalable and rotatable fonts
Fonts AvailableDownloadable pre-scaled fonts via Label Vista™
available from 12-48 pt.
software
Optional international character sets
Codabar
UCC/EAN 128
1D Bar Codes AvailableCode 93
2D Bar Codes AvailableMaxiCode
Rotation Angles0°, 90°, 180°, and 270°
Code 39
EAN 8/JAN 8, 2 and 5 digit extensions
EAN 13/JAN 13, 2 and 5 digit extensions
lnterleaved 2 of 5
MSI/Plessey
FIM/POSTNET
UPC-A, 2 and 5 digit extensions
UPC E, 2 and 5 digit extensions
PDF 417
QL 420 User’s Guide41
Physical/Environmental/Electrical Specifications
3.0”
[76.2 mm]
8.2 “
[208 mm]
6.1”
[154.9mm]
F
IGURE
18 O
VERALL DIMENSIONS
3.5”
[89 mm]
7.8”
[198.0 mm]
Weight
w/ battery,2.0 lbs. (.9 kg. )
excluding media
& wireless optons.
Temperature
Operating5° to 122° F (-15° to 50° C)
Storage-13° to 158° F (-25° to 70° C) Range
Relative Humidity
Operation10% to 80% (non-condensing)
Storage10% to 90% (non-condensing)
ElectricalBattery: 7.4V (nominal) Lithium-Ion
Chargers: External single battery charger Model LI72,
120-230 VAC depending on model selected.
External 4-bay charger Model UCLI72-4, 120 VAC
42QL 420 User’s Guide
Communications Port
Signal
Pin#NameTypeDescription
1RXDinputReceive Data
2TXDoutputTransmit Data
3CTSinputClear To Send from host
4RTSoutputRequest To Send
set high when printer
is ready to accept command
/data
5GNDGround
6NCNo Connect
7DSRinputData Set Ready
low to high transition turns
printer on, high to low
transition turns printer off
(if enabled)
8DTRoutputData Terminal Ready
set high when printer is on
(set to battery voltage for
“S” versions)
2
4
1
6
5
3
7
8
F
IGURE
19 C
OMMUNICATIONS PORT
(8 pin Circular DIN)
continued on next page
QL 420 User’s Guide43
Accessories
• Adjustable shoulder strap
• Protective soft case
• Extra battery packs
• 120-230 VAC battery charger
• Quad Charger
• Desk Mount
•Vehicular Mount w/ external fanfold media storage
• DC-DC run/charge units (input ranges from 12 to 60 VDC)
• AC run/charge unit (110 to 240 VAC input)
• Data cables
For details, call your authorized Zebra re-seller.
44QL 420 User’s Guide
Appendices
Appendix A
Interface Cables
Part Number ´BL11757-000; 8-Pin DIN to 9-Pin DB PC Cable
This part is also available as a coiled cable under Part Number
BL15063-1.
For Use With a Personal Computer
Pin 9
Female Plug
DB-9 Pin
(to P.C.)
PC Signals Printer Signals
Pin 1
(TXD)
(RXD)
(RTS)
(CTS)
(GND)
(DTR)
(DSR)
Shield
3
2
7
8
5
4
6
1
2
3
4
5
7
8
(RXD)
(TXD)
(CTS)
(RTS)
(GND)
(DSR)
(DTR)
Shield
3
5
7
8
6
4
1
8 Pin
Male Plug
(to printer)
2
QL Series User’s Guide Appendices47
Appendix A
INTERFACE CABLES
BL11537-212’/Coiled6 Pin MiniDIN8 Pin DIN Over-molded
BL13309-18’ /Coiled6 Pin Mini DIN8Pin DINAuto ON/OFF
CableCordTerminalPrinter
BL13298-18’ /Coiled6 Pin MiniDIN8 Pin DIN Over-moldedAuto ON/OFF
To insure maximum printer life and consistent print quality and
performance for your individual application, it is recommended
that only media produced by Zebra be used. Advantages include:
• Consistent quality and reliability of media products.
• Large range of stocked and standard formats.
• In-house custom format design service.
• Large production capacity which services the needs of
many large and small media consumers including major
retail chains world wide.
• Media products that meet or exceed industry standards.
For more information call Zebra Technologies Corporation at
+1.866.230.9495 (U.S., Canada and Mexico) and ask to speak to
a Media Sales Representative.
Appendix C
Maintenance Supplies
In addition to using quality media provided by Zebra, it is recommended that the printer be cleaned as prescribed in the maintenance section. The following items are available for this
purpose:
• Cleaning Pen (10 pack), Reorder No. AN11209-1
• Cleaning Kit with Cleaning Pen, and Cotton Swabs, Reorder No. AT702-1
QL Series User’s Guide Appendices51
Appendix D
Product Support
When calling with a specific problem regarding your printer,
please have the following information on hand:
• Model number/type (e.g. QL 320)
• Unit serial number (Found on the
large label on the back of the printer)
• Product Configuration Code (PCC)
(15 digit number
found on the small
label on the back of
the unit)
Contact the Help Desk at:
Zebra Technologies Corporation
30 Plan Way
Warwick, Rhode Island 02886-1012 USA
Telephone: +1 401.739.5800
Fax:+1 401.732.7808
e-mail:risupport@zebra.com
Serial Number
Label
Configuration
Label
QL 320 SHOWN
In Europe:
Zebra Technologies Europe, Limited
Zebra House
The Valley Centre, Gordon Road
High Wycombe
Buckinghamshire HP13 6EQ, United Kingdom
Telephone: +44 1494 768298
Fax:+44 1494 768210
e-mail:tseurope@zebra.com
Ask for Customer Support
52QL Series User’s Guide Appendices
A
Accessories 44
B
Battery, charging 9
while printing 9
Battery, installing 9
Battery life, tips 31
Belt clip 30
Bluetooth Device Address (BDA).
Communications: wireless via
Bluetooth™
C
Charger, battery
LI 72 (single charger) 9
quad charger charging times 10
quad charger indicators 10
UCLI72-4 Quad Charger 10