P4T
Zebra
®
MM4 Mobile Mount
Vehicular Mount for Qln420, QL420
and P4T/RP4T Mobile Printer Series
Safety Guide and Installation Instructions
P1005089 Rev. C
January, 2013
Special Notices
The following notices emphasize certain information in the guide. Each serves a special
purpose and is displayed in the format shown:
Note: Note is used to emphasize any signicant information.
Caution: Indicates information that, if not followed, can result in damage to software, hardware,
or data.
Caution: This symbol indicates a potentially hazardous situation which, if not avoided, can result
in personal injury.
Caution: This warning symbol indicates a potentially hazardous situation which, if not avoided,
may be a shock hazard.
Warning: This warning symbol indicates an imminently hazardous situation which, if not
avoided will result in death or serious injury. Before you work on any equipment, be aware of the
hazards involved with electrical circuitry and be familiar with standard practices for preventing
accidents.
General Warnings and Cautions
Caution: Only trained and qualied personnel should be allowed to install, replace, or service this
equipment.
Caution: Read the installation instructions before you connect the system to its power source.
Note: Zebra Technologies Corporation is not liable for personal injury or damage to any equipment
caused by the improper mechanical installation of this equipment or improper connection to any
power source. Check with the vehicle manufacturer or dealer for installation assistance in order
to prevent the voiding of the vehicle warranty or maintenance contract.
Warning: Risk of ignition or explosion. Explosive gas mixture may be vented from the vehicle
battery. Work only in a well ventilated area. Avoid creating arcs and sparks at the battery
terminal
pg. 2 of 13 P1005089 Rev. C
MM4 Mobile Mount Safety and Installation Guide
Introduction
NOTE: Zebra Technologies Corporation is not liable for personal injury or damage to any equipment
caused by the improper mechanical installation of this equipment or improper connection to any
power source. Check with the vehicle manufacturer or dealer for installation assistance in order
to prevent the voiding of the vehicle warranty or maintenance contract.
The MM4 Mobile Mount system is designed to integrate a Zebra™ QLn420, QL 420 or a
P4T series mobile printer and optionally a Zebra DC/DC power supply into the electrical and
mechanical systems of a vehicle. Once installed it will provide intelligent charging capabilities
for the printer’s battery and protection from accidental damage to the printer.
The DC/DC modules are supplied separately from the MM4 installation Kit (p/n AK18926-3
for QL 420 & P4T and P1050667-035 for QLn420). They should be installed in accordance with
their installation guides and under the supervision of properly trained and qualified personnel.
The installation and safety warnings in this manual pertain only to the mechanical
installation of the MM4 mobile mount. Follow them closely to ensure safe, reliable
performance of the QLn420, QL 420 or P4T Printer in a mobile environment
It is important that the vehicle’s electrical system be functioning properly. The vehicle’s
charging circuit must work properly and vehicle-generated electrical “noise” must be
minimized and within specifications.
The vehicle charging circuit must neither undercharge nor over-charge the vehicle battery.
Defective ignition wiring, damaged insulation, or faulty vehicle electrical components can
cause electrical noise and excess electrical noise can be severe enough to defeat the electrical
filtering that is built into the printer. When this happens, computers and printers can behave
unpredictably.
NOTE: All of these systems must be connected in strict accordance with the instructions in this
document. Failure to install this equipment per these instructions will void the warranty.
P1005089 Rev. C pg. 3 of 13
Tools Required for Installation
• An electrical drill, drill bits 1/4”(6 mm))
• Taps-1/4-20 and #6-32 (M6 and M3).
• Common hand tools.
References
• The QLn Series, QL Plus Series, and P4T/RP4T User Guides
• The RCLI-DC Mobile Charger Installation Guide, or
• The 50W. DC/DC Power Supply P4T (AT18488-1) Installation Guide
Contents of the MM4 Mobile Mount Package
• The Mobile Mount Bracket Assembly
• The Lift Truck Mounting Bracket
• The Fanfold Bin
• A plastic bag containing mounting hardware, and the Fanfold Spacer
• This Guide
Introduction to Installation
The MM4 Mobile Mount allows you to mount a QLn420, QL 420 or P4T printer into virtually
any vehicle. A separately supplied DC/DC power supply appropriate to each printer model can
provide a source of power to run and charge the printer’s battery from the vehicle’s electrical
system.
Installation of the DC/DC power supply is covered in the Installation Guide supplied with
each system.
In most installations, the power cable is wired to the vehicle’s battery power system
indirectly through a power take-off point. Some models of the DC/DC supplies offer the
option of accessing input power from the vehicle’s cigarette lighter or power adapter.
CAUTION: Under no circumstances should the equipment be attached directly to the vehicle’s
battery or an AC power source without a proper fuse.
Since each situation or equipment type may pose unique requirements, mounting hardware
selection and mechanical installation shall be the responsibility of the installer. Zebra
recommends using self-locking (ESN) nuts, bolts, and/or lock washers for installing the mount.
The mount is pre- drilled for 1/4” (M6) mounting hardware.
Your tasks are to:
• Mechanically install the MM4 Mobile Mount
• Install the DC/DC converter system (if used in this installation) according to the
appropriate Installation Guide
• Connect the Data I/O cable from the data terminal (if used) and the output cable from the
DC/DC supply system to the printer.
Decide where you will mount the printer, then proceed with the following instructions.
Installing a Terminal
When you are installing the MM4 Mobile Mount, you may also be installing a terminal at
the same time. Follow the terminal manufacturer’s instructions for installing their unit. If the
printer and terminal are linked together with a data cable it typically should be no longer than
six (6) feet (183 cm).
Some installations may require the terminal and printer to communicate via radio frequency
(RF) rather than cables.
Plan your installation with these considerations in mind, and locate the printer so that the
operator can easily load printing media and operate the printer’s controls.
pg. 4 of 13 P1005089 Rev. C
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