
Contents
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About This Manual ................................................................................................................................... 1
1.0 Introduction.................................................................................................................................. 1
1.1 Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.2 Printer Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
2.0 Installation ................................................................................................................................... 4
2.1 Label Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.2 Label Roll Core Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.3 PC Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.3.1 Store Format - Autoform Capability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.3.2 Deleting the AUTOFR Form From the Printer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.0 Accessories ................................................................................................................................. 9
3.1 Stripper Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.2 Cutter Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.0 Control Panel ............................................................................................................................. 16
4.1 LED Status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.2 Feed Key Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.3 Self-Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.4 Auto-Sensing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.5 Dump Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.6 See-Through Sensor On/Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.7 Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
5.0 Maintenance and Adjustments.................................................................................................. 19
5.1 Print Head module Installation/Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5.2 Thermal Print Head Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
5.3 Cutter Adjustment (Paper Jams) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
6.0 Appendix .................................................................................................................................... 22
6.1 Control Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
6.2 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
6.3 Compliance Statements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
6.4 Serial Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
6.5 USB Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
6.6 Internal Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
6.7 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
RL-22DT/42-DT Limited Warranty........................................................................................................... 26
© 2011 Rice Lake Weighing Systems. All rights reserved. Printed in the United States of America.
Specifications subject to change without notice.
February 2011
i

ii RL-22DT/RL-42DT Operation Manual

About This Manual
LED Light
Feed key
Power Switch
Cover Option
button
This manual is intended for use by qualified service
technicians responsible for installing and servicing the
RL-22DT/RL-42DT printers.
Authorized distributors and their employees
Danger of explosion if battery is incorrectly
replaced. Replace only with the equivalent
type recommended by the manufacturer.
Dispose of batteries according to the
manufacturer’s instructions.
can view or download this manual from the
Rice Lake Weighing Systems distributor
www.ricelake.com.
site at
1.0 Introduction
After unpacking, check to make sure all accessories are included:
• Barcode printer
• Power cord
• Switching power
1.1 Safety Instructions
• Keep the equipment away from humidity.
• Before you connect the equipment to the power outlet, check the voltage of the power source.
• Disconnect the equipment from the voltage of the power source to prevent possible transient
over-voltage damage.
• Don’t pour any liquid near the equipment, as it may result in electric shock.
• Only qualified service personnel should open the equipment.
• Don’t repair or adjust energized equipment alone under any circumstances. Someone capable of
providing first aid must always be present for your safety.
•USB cable
• Label
1.2 Printer Parts
Figure 1-1. Outside of printer
RL-22DT/42DT Operation Manual - Introduction 1

Print Head Lift
Label Roll Holder
Print Mechanism
Label Roll Core
Label Guides
Front Cover Piece
Platen Cover
Platen Cover
Label Sensor
Label Roller
Figure 1-2. Inside of printer
Figure 1-3. Inside of printer
2 RL-22DT/42DT Operation Manual

Figure 1-4. Back of printer
Power Socket
USB Port
Fan-Fold Label Insert
Serial Port (RS-232)
Bottom Case Cover
Hang Holes
Figure 1-5. Bottom of printer
RL-22DT/42DT Operation Manual - Introduction 3

2.0 Installation
This section contains instructions on installing labels, the label roll core switch, and software and driver
installation.
2.1 Label Installation
1. Place the printer on a horizontal surface
and open the top cover.
2. Press and release the lock of the label roll
core.
3. Pull up the label roll holder and lift the
label roll core upward.
4. Place a new label roll onto the label roll
core.
4 RL-22DT/RL-42DT Operation Manual

5. Flip the label roll core downward and
pull back the label roll holder.
6. Pull and lock the label roll core to the
original position.
7. Put the label under the label guide and
stretch it frontward.
RL-22DT/RL-42DT Operation Manual - Installation 5

8. Pull the label guide inward and make it
fit the edge of the label.
9. Close the top cover to complete the label
installation.
6 RL-22DT/RL-42DT Operation Manual