Page 1
P/N. 920-010511-03
Edition 1
April 02
EZ-4206/4216/4304 User’s Manual
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FCC COMPLIANCE STATEMENT
FOR AMERICAN USERS
This equipment has been tested and found to comply with the limits for a CLASS A digital device, pursuant to
Part 15 of the FCC Rules. These limits are designed to provide 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 instructions, 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.
EMS AND EMI COMPLIANCE STATEMENT
FOR EUROPEAN USERS
This equipment has been tested and passed with the requirements relating to electromagnetic compatibility
based on the standards EN50081-1 (EN55022 CLASS A) and EN61000-4-2/-3/-4/-5/-6/-8/-11 (IEC Teil 2,3,4).
The equipment also tested and passed in accordance with the European Standard EN55022 for the both
Radiated and Conducted emissions limits.
CAUTION
Danger of explosion if battery is incorrectly replaced
Replace only with the equivalent type recommended by the manufacture.
Dispose of used batteries according to the manufacturer’s instructions.
Specifications are subject to change without notice.
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EZ-4206/4216/4304 USER’S MANUAL ................................. 0
1. About The Printer.........................................................................3
1-1. I
1-2. P
1-3. C
1-4. G
1-5. P
1-6. C
2. Setting up Your Printer................................................................7
2-1. L
2-2. L
2-3. S
2-4. C
NTRODUCTION
RINTER WITH OPTIONS
ONTENTS
ENERAL SPECIFICATIONS
RINTER PARTS
OMMUNICATION PORT SPECIFICATIONS
OADING THE RIBBON
OADING
TRIPPER
ONNECTING THE PRINTER TO AN INTERFACE
A L
......................................................................................... 3
...........................................................................3
............................................................................................... 3
........................................................................4
....................................................................................... 5
.................................................... 6
...............................................................................7
ABEL ROLL
............................................................................9
................................................................................................ 9
..........................................10
3. Control Panel..............................................................................11
3-1. G
3-2. N
3-3. S
3-4. D
3-5. A
3-6. D
3-7. S
3-8. E
ENERAL MESSAGES
ORMAL OPERATION
ELF-TEST
UMP MODE
UTO SENSING
OWNLAND MODE
ETTING MODE
RROR MESSAGES
............................................................................................ 13
.......................................................................................... 13
....................................................................................... 14
..................................................................................14
...................................................................................... 14
..............................................................................11
..............................................................................12
.................................................................................15
4. Maintenance And Adjustments.................................................16
4-1. C
4-2. A
4-3. A
4-4. R
LEANING THE PRINTER HEAD
DJUSTING THE CUTTER
DJUSTING THE PRINTER HEAD PRESSURE
IBBON EXPANSION PRESSURE ADJUSTMENT
.................................................................16
.........................................................................16
..............................................16
...........................................17
4-5. T
All the MG-200 commands can be used for EZ-4206/4216/4304.
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ROUBLESHOOTING
................................................................................18
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1. About The Printer
1-1. Introduction
The EZ-Series is designed with the concept of…
User friendliness------------------------End user does not require training
Expandable features-------------------Features such as cutter and stripper are easily expandable by the user
The EZ-Series includes the following features:
l
Genuine 16-bit CPU with 16-bit circuit firmware design
l Easy to use LCD display
l
Internal memory that can download labels, pictures, and fonts
l
Y2K compliant Internal Time/Date clock can record the time automatically and functions when power is off
l Able to support large label rolls of 260 m in length and a 300 m ribbon
l
Optional memory (SRAM) can expand the printing length to 40 inches
l
Optional stripper
l Optional cutter
l
Free software bundled with every printer package, thus providing a complete solution
1-2. Printer With Options
Standard Stripper
Cutter
＊
Options can be purchased manufacturer installed or ordered at a later date＊
1-3. Contents
The contents comprise of the following:
<1>Printer <2>Power Cord <3> Ribbon
<4> Roll of Labels <5> CD (Software/Manual/Driver/DLL)
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1-4. General Specifications
Specifications EZ-4206\EZ-4216 EZ-4304
Resolution 203 dpi 300 dpi
Print speeds 2” ~ 6” 2” ~ 4”
Print length 10mm~406mm 10mm~152mm
Print width 25mm~104mm 25mm~108mm
Media Thickness: 0.06mm to 0.2mm
Roll size:
EZ-4206 Maxi. O.D. 6” (15.2 cm) on a 1” or 3” I.D. core
EZ-4216/EZ-4304 Maxi. O.D. 10” (25.4 cm) on a 1” or 3” I.D.
Ribbon Max.110mm width; 300 meters length; I.D. 1”
Memory Fonts, Graphics, Formats and Double-byte characters storage
Programming Godex EZ series Programming Language (EZPL)
Label Create Software – QLabel-III
Windows Driver
DLL
Bar codes Code 39, Code 93, Code 128 (subset A,B,C), UCC 128, UPC A / E (add on 2 & 5), I 2 of
5, EAN 8 / 13 (add on 2 & 5), CODABAR, POSNET, EAN 128, DUN 14
2D Bar codes MAXICODE, PDF417
Fonts Internal CG Triumvirate fonts, and download fonts rotatable 0, 90, 180, 270 degrees
Graphics BMP, PCX file; Support ICO, WMF, JPG, EMF file through software
Front Panel LCD Display with Backlight
LED: Power, Status
Key: Feed, Stop, Pause
Sensing Sensor type: Label gap sensing, Black mark sensing
Detection: Label length auto sensing and/or Program Command setting
Real Time Clock Standard
Firmware Downloadable
Interface RS-232
Centronics parallel
Environment Operating Temperature: 40°F to 104°F (5°C to 40°C)
Operating Humidity: 30%~85%
Storage Temperature: -40°F to 122°F (-20°C to 50°C)
Storage Humidity: 10%~90%
Options Expanded memory module
Cutter
Stand Alone Data Terminal Keypad
Stripper
USB
Datamatrix Code and QR Code
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1-5. Printer Parts
Use the following diagram to familiarize yourself with the features and components of the EZ-Series printer
P1 POWER JACK P14 LABEL ROLL STAND
P2 PARALLEL PORT P15 LABEL ROLL CORE
P3 SERIAL PORT P16 RIBBON SUPPLY SPINDLE
P4 POWER SWITCH (POWER) P17 RIBBON REWIND SPINDLE
P5 TOP COVER P18 LOCK SWITCH (2EA, LEFT/RIGHT)
P6 FRONT COVER P19 RIBBON ROLLER (LONG)
P7 TROUBLE INDICATOR (STATUS) P20 TEAR BAR
P8 POWER INDICATOR (POWER) P21 RIBBON ROLLER (FRONT)
P9 LCD DISPLAY PANEL P22 PRINTER HEAD
P10 STOP KEY P23 RIBBON ROLLER (SHORT)
P11 PAUSE KEY P24 PAPER FIX BAR
P12 FEED KEY P25 LABEL GUIDE
P13 PRINTER HEAD ASSEMBLY P26 REPLACEABLE RUBBER ROLLER
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1-6. Communication Port Specifications
Parallel Interface
Handshake : DSTB to printer and BUSY to host.
Interface cable : DB25 Male (IBM-PC) 36 position parallel printer cable.
Pin out : Tabulated below.
PIN NO. FUNCTION TRANSMITTER
1
2-9
10
11
12
13
14-16
17
18
19-30
31
32
33
34-36
Serial Interface
Serial port is set at the factory with baud rate 9600, no parity, 8 data bits, 1 stop bit, and XON/XOFF protocol as
well as RTS/CTS.
The connector is RS-232 DB9 female. The pin assignments are listed below.
PIN NO. 1 2 3 4 5 6 7 8 9
FUNCTION +5 V TXD RXD N/C GND DTR/CTS N/C DTR/CTS N/C
PC to serial port (pin to pin) description.
PC
RXD 2 2 TXD
TXD 3 3 RXD
GND 5 5 GND
DSR 6 6 DTR/CTS
RTS 8 8 DTR/CTS
USB Interface
The connector is USB Type A. The pin assignments are listed below.
PIN NO. 1 2 3 4 5
FUNCTION USBVCC D- D+ GND
PC to USB port (pin to pin) description.
PC
USBVCC 1 1 USBVCC
D- 2 2 DD+ 3 3 D+
GND 4 4 GND
NOTE: Verify that the USB driver is installed before connecting the printer and PC via USB port. In addtion USB
port and parallel port cannot be used simulataneouly.
Strobe
Data 0-7
Acknowledge
Busy
Paper empty
Select
N/C
Chassis Ground
N/C
Signal Ground
N/C
Fault
Signal
N/C
EZ-Series
EZ-Series
1 1 +5V
4 4 N/C
7 7 N/C
9 9 N/C
5 5
host
host
printer
printer
printer
printer
host
printer
ground
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2. Setting up Your Printer
EZ-Series printer modes:
Thermal Transfer Mode: Ribbon is needed for printing.
Direct Thermal Mode: No Ribbon is needed. Direct thermal paper must be used.
Refer to Chapter 3-2 (General Messages) to set up the correct Printing Mode. When choosing Thermal Transfer
Mode, perform the following the steps to load the ribbon
2-1. Loading The Ribbon
1. Open the top cover (P5).
2. By pressing toward the cap-side, take out the
ribbon supply spindle (P16) and the rewind
spindle (P17) (see Fig. 2-1).
3. Install a new ribbon onto the supply spindle
(P16), and install an empty paper core onto
the rewind spindle (P17).
4. Replace the supply spindle (P16) and rewind
spindle (P17).
Fig. 2-1
5. Press the two lock keys (P18) to loosen the
printer head assembly (P13) (see Fig. 2-2).
Fig. 2-2
6. Lift the printer head assembly (P13), and
lower the paper fix bar (P24) (see Fig. 2-3).
Fig. 2-3
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7. Load the ribbon between the ribbon roller
(short) (P23) and paper fix bar (P24); then
wrap the front edge of the ribbon around the
paper core of the rewind spindle (P17) and
secure with a piece of tape or label (see Fig.
2-4).
Fig. 2-4
8. Return the paper fix bar (P24) to its original
position (see Fig. 2-5).
9. Load the paper (Refer to Chapter 2-2).
Fig. 2-5
10. Lower and lock the printer head assembly
(P13) (see Fig. 2-6).
11. Close the top cover (P5)
12. Turn the power on (P4), and set up the mode
for thermal transfer.
13. Press the feed key (P12), to release some
paper.
Fig. 2-6
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2-2. Loading A Label Roll
1. Open the top cover (P5).
2. Take out the label roll core (P15) and load
the paper roll.
3. Put the paper roll in the label roll stand (P14).
4. Press the lock keys (P18) to loosen the
printer head assembly (P13).
5. Lift the printer head assembly (P13), and
load the paper under the paper fix bar (P24)
(see Fig. 2-2-1).
Fig. 2-2-1
6. Adjust the label guide (P25) in accordance to
the width of the label (see Fig. 2-8).
7. Lower the paper fix bar (P24).
8. Load the ribbon. (Refer to Chapter 2-1).
9. Lower and lock the printer head assembly
(P13).
10. Close the top cover (P5).
11. Turn the power on (P8). Refer to Chapter 3-2
(General messages) to set up the correct
paper.
12. Press the feed key (P12) to release some
paper.
Fig. 2-2-2
2-3. Stripper
The Stripper (peeler) helps separate the printed label from the liner paper one at a time. Only when the separated
label has been taken away will another label be automatically printed.
1. Turn the power off (P4) and open the top
cover (P5) (We are assuming that the paper
roll and ribbon are already installed).
2. Press the lock keys (P18) to loosen the
printer head assembly (P13).
3. Lift the printer head assembly (P13) and
move the stripper down to open.
Fig. 2-3-1
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4. Load the label roll with 4 inches of liner paper
past the stripper of platen (see Fig. 2-3-2).
Fig. 2-3-2
5. Return the stripper to the original position and
make sure the first label is located at the back of
the replaceable rubber roller (P26) (see Fig. 2-3-
3).
6. Lower the printer head assembly (P13) and
fasten it.
7. Power on (P4). Refer to Chapter 3-2 (General
Messages) to set up the stripper function.
Fig. 2-3-3
8. If the liner paper does not appear to be in the
right position under the stripper roller, re-adjust
the label roll (loosen the printer head assembly
and lift up the stripper to adjust the label).
9. Return the stripper and printer head assembly
(P13) after adjustment.
10. Simply print and labels will automaticlly be
separated from the liner. Printer will print a new
label only when the first label is taken away (see
Fig. 2-3-4).
Fig. 2-3-4
Note: When not using the stripper funtion, make sure the mode is not selected and the stripper is
closed. We suggest that the minimum label height be more than 25 mm.
2-4. Connecting The Printer To An Interface
1. Be sure the power key (P4) of the printer is off.
2. Plug the power adaptor into the power jack (P1).
3. Connect the printer to an interface via parallel (P2) or serial port (P3).
4. Turn the power key (P4) on. The printer name will be displayed on the LCD and Vx.xxx represents the edition.
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3. Control Panel
3-1. General Messages
LCD
DISPLAY
EZ-XXXX
Vx.xxx
NOW IN
SELFTEST
NOW IN
DUMPMODE
AUTO
SENSOR
EZ-XXXX
RESET
EZ-XXXX
PAUSE
EZ-XXXX
CANCEL
PRESS
FEED KEY
PROGRAM
LOADING
LOADING
COMPLETE
SETTING
MODE
STATUS POWER
(FLASH)
LED
GREEN GREEN 1
GREEN GREEN 3
GREEN GREEN 3
GREEN 3
GREEN GREEN 1
GREEN GREEN
GREEN GREEN
RED GREEN
RED
GREEN GREEN 1
GREEN GREEN 1
GREEN 1
BEEP
Vx.xxx represents the edition.
Press the feed key; then turn on the power. Release the feed key after
3 seconds. (printer will begin self-test mode)
Press the feed key; then turn on the power. Release feed key after
paper output stops, and printer is ready to print in dump mode
Press the pause key; then turn on the power. Release the pause key
after 3 beeps, printer will automatically detect the paper
Press the pause key first; then press the stop and feed key. After 2
seconds, printer will reset the system
Press the pause key and printer will stop printing. It will continue
printing if you press the pause key a second time
Press and hold the stop key until CANCEL displayed on the LCD
screen. The printer will stop printing and is ready for the next operation
If you open the printer head assembly while it is printing, a message
will be diplayed saying “Press Feed Key”. Pressing the feed key will
return the printer back to the printing status
Loading the program
Loading program complete
Press the pause button first, while holding down the pause button
press the feed key and the printer will enter the “set up” status. Press
the stop key after set up and the printer will be ready for printing.
DESCRIPTION
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3-2. Normal Operation
Press the pause key when printer is in normal status, then press the stop and feed
PAUSE KEY
If the pause key is pressed during normal status the LCD will display “EZ-XXXX
PAUSE” and the printer will not accept any print jobs.
If the pause key is pressed in the middle of a print job, printing will momentarily pause.
When the pause key is pressed again, printing will continue from wh ere it left off. Note
that the LCD will display at which label the pause occurred and count backwards when
printing resumes.
FEED KEY
The paper will advance and stop at the top of paper if pressed (the stop position depands on the setting). When
using the continuous paper (plain paper), the paper is fed in a certain amount of feed and stopped. When using
the label paper, the paper is fed until the top of the paper is detected. If the sensor can not detected the label
paper, perform an Auto sesing as described on page14.
STOP KEY
If the stop key is pressed in the middle of a print job, printing will be cancelled. The
LCD will display ”xxxxxxxx CANCEL”
Press the stop key and printer will stop printing and is ready for the next operation
RESET
Resetting the printer.
1.
key.
2. After 2 seconds, the LCD will display “EZ-XXXX RESET”. Only after the stop and
feed keys are released will the printer be reset.
3. The printer will beep once to inform user that printer has been reset.
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3-3. Self-Test
The self-test function helps you to check if the printer works well. To have self-test,
please follow the steps.
1. Turn the power off and press the feed key (P12).
2. Turn the power on (with the feed key pressed). Immediately release the feed key
when the printer beeps 3 times
3. The LCD will display “NOW IN SELFTEST” and the printer will print the following
contents.
4. Disable the Self-test, please power off the printer at least 2 seconds, than power
on again.
EZ-XXXX LABEL PRINTER
VERSION : Vx.xx
CODE 39 EAN 8 EAN 13
CODE 93 UPC E UPC A
I 2/5 CODABAR CODE 128
MAXI CODE PDF417
3-4. Dump Mode
When enter the dump mode, the printer will print out the echo of the received ASCII. Use this function to debug
your software when the printer does not perform as you expect. To get in the dump mode, follow the steps as
below:
1. Turn the power off and press the feed key (P12).
2. Turn the power on (with the feed key pressed).
3. Release the feed key after the printer stops out-putting paper (about 3-4
seconds).
4. The printer will print the following: “DUMP MODE BEGIN” and the LCD will also
show “NOW IN DUMPMODE”.
5. Now when you print, printer will output the commands.
6. Compare the print out to the commands that were originally sent.
NOTE: Press the feed key if you would like to return to normal status and the printer
will output “OUT OF DUMP MODE” (turning off the power for 2 seconds also returns
the printer to normal status).
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3-5. Auto Sensing
downloading Firmware and full traditional or simplifed Chinese
Auto sensor is able to automatically detect and record gap paper or black mark label
height. With the Auto sensor, label height does not need to be specified when
printing.
1. Turn the power off and press the pause key (P12).
2. Turn the power on (with the pause key pressed). Immediately release the feed
key when the printer beeps 3 times and the LCD will display “AUTO SENSOR”.
3. After auto sensor detection, the LCD will display the label type and height. For
example: When ” 00000224 ” is displayed:
If using Gap paper, 224 dots include the label height plus gap.
If Black mark paper is used, 224 dots includes the label height plus black line width
(dots:mm is equivalent to 8:1).
3-6. Downland Mode
Special software is needed to utilize the Download mode for
charater sets, if needed.
1. Follow the software instructions to download.
2. The LCD will display “Program Loading” when
downloading begins
3. The LCD will display ”Loading Complete” when
downloading is complete.
3-7. Setting Mode
The setting mode allows user to manually choose settings for various printing
requirements such as printing mode, option setup, paper setup, and COM port setup.
1. To enter the setting mode, hold the Pause key first, then press the Feed key until
SETTING MODE displayed on the LCD.
2. Various setting can be chosen once the pause and feed keys are released.
3. Under Setting Mode, the Feed, Pause and Stop keys have the following functions:
FEED: scan through list of options
PAUSE: enter or select option
STOP: exit option
An asterisk “＊ ” will appear in front of the selected option.
4. When leaving Setting Mode you will be asked whether you wish to save.
Printing Mode
Option Set
Paper Set
COM Port Set
Auto Sensor
Setting Review
Thermal Transfer: requires use of ribbon
Direct Thermal: does not require ribbon
Strip mode
Cutter mode
Option OFF
Black Mark: media with black lines
Gap Paper
Plain Paper
Baud Rate: 4800 / 9600 / 19200 / 38400 bits
Parity Set: None / Odd / Even Parity
Data Lengh: 7 / 8 bits
Stop bit: 1 / 2 bits
Auto mode: Setting the sensor detect by auto
Gap mode: Setting the sensor detect by see through
Black mode: Setting the sensor detect by black mark
Allows you to scan through the option selections made
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3-8. Error Messages
times
times
times
times
BLACK LINE (out of black liner
times
times
Filename
times
Filename
times
times
LCD
DISPLAY
Waiting Red Green
Ribbon
End
Paper
Out
Paper
Jam
Syntax
Error
Memory
Full
No found
Repeat
Stripper
Error
STATUS POWER
LED
Red Green
Red Green
Red Green
Red Green
Red Green
Red Green
Red Green
Red Green
BEEPER DESCRIPTION SOLUTION
4 beeps 2
consecutively
3 beeps 2
consecutively
2 beeps 2
consecutively
2 beeps 2
consecutively
2 beeps 2
consecutively
2 beeps 2
consecutively
2 beeps 2
consecutively
2 beeps 2
consecutively
2 beeps 2
consecutively
Printer head assembly is not
properly closed
Out of Ribbon Change the ribbon
Out of paper or paper is too
transparent to be detected
Cannot find the GAP or
paper)
Command not correct Check all the command, may
The printer’s memeory was full Erase some data you do’t
Could not found the filename
from printer memeory
The printer’s memeory have
the same name is use
The strip function not working Make sure the label did not
Make sure the printer head is
securely closed
Reload paper or re-adjust the
“auto sensor”
Check the paper jam
be some parameters lose or
wrong
need or expanding the
memory (option)
Use the ~X4 command to print
all files name in memeory
Change the filename and
download again
leave under the strip sensor
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4. Maintenance And Adjustments
4-1. Cleaning The Printer Head
The printer head may be covered with dust or label printout is unclear, thus the printer head should be cleaned.
This will prolong the printer head life.
1. Press the lock keys (P18) to loosen the printer
head assembly (P13).
2. Lift the printer head assembly (P13) to uncover
the whole printer head (P22).
3. Use a soft cloth soaked with isopropyl alcohol to
remove the stuck label and clean the printer head
surface (P22) (see Fig. 4-1-1).
Fig. 4-1-1
4-2. Adjusting The Cutter
1. A cutter adjusting hole is present on both
sides (A) (see Fig. 4-2)
2. The cutter will not function properly if there is
a paper jam. Turn the power off and use a
#M3 hexagon wrench inserted into hole ”A”,
and open the cutter from right to left.
3. Turn on the power after clearing the paper
jam. The cutter will return to the correct
position automatically.
A
Fig. 4-2
4-3. Adjusting The Printer Head Pressure
When opening the top cover, you will see two screws right on the top of the printer head assembly. When
different paper material or ribbon material is used, you may need to adjust the printer head pressure, by turning
these two screws to decrease the pressure or vice versa. If the pressure between the right and left sides of
printer is not balanced, please readjust these two screws.
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4-4. Ribbon Expansion Pressure Adjustment
When printing different textures of labels, or using different ribbon materials, due to certain material effects,
ribbon wrinkles or insufficient pulling force may occur, therefore ribbon pressure needs to be adjusted at some
point.
To adjust the ribbon pressure, please open the top printer cover, and on the left of the ribbon supply spindle
(P16) is the ribbon adjustment knob. Please turn it clockwise or counterclockwise to control the ribbon pressure
high and low. After adjustment, please print again to check the effect.
Ribbon pressure adjustment procedures:
1. Install the ribbon supply spindle (P16) onto the printer head assembly (P13).
2. Secure the ribbon supply spindle (P16), then adjust the ribbon pressure knob.
Clockwise: increase ribbon supply pressure
♦
♦ Counterclockwise: decrease ribbon supply pressure
PRINTER HEAD ASSEMBLY
Note : please do not over adjust the pressure and avoid making unnecessary adjustment.
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4-5. Troubleshooting
PROBLEM RECOMMENDED SOLUTION
LED does not light (eventhough
power key is already turned on)
Printer is working but nothing is
printed on the labels
Label stuck w Remove the stuck labels and use a soft cloth soaked with alcohol to
Only part of the label is printed w Label or ribbon caught on printhead
Difficult to load the label roll w Check to see if labels are stuck in the printer
When printing, some dots are
missing
Printing position is not correct w Check the gap sensor, it may be covered with dust.
Label printing jumps to next label w Check the label height setting.
Label printing is not very clear w Check the printer darkness setting.
Paper is not properly cut w Check label loading, it may not be loaded in the proper position.
Paper cannot be cut off or unusual
cutting
Label peeling is not working
correctly
Garbage appears when printing
length is over 16 inches
Please contact your agent for help if the above information cannot help you.
w Check the power connecter.
w Check if the roll is loaded with labels facing up or if the paper is the
correct type.
w The printer driver setting in use may not be correct.
w Make sure to use the correct label roll and printing mode.
clean the adhesive glue.
w Check to see if it is a software problem.
w Margin settings may be incorrect.
w Check the ribbon.
w Printer head not completely locked.
w Adjust the printer head pressure screws.
w Clean printer head with alcohol (if the label glue is stuck to printer head,
wipe carefully with a soft cloth soaked with alcohol).
w The printer head may damage, please contact your agent.
w Check the label setting.
w Do the Auto-sensing again.
w Check the label guide, it may not be in the proper position.
w Contact your distributer, and make sure they use qualified label liner
material.
w Check the gap sensor, it may be covered with dust.
w Do the Auto-sensing.
w Check the printer head to see if it’s covered with dust or ribbon residue.
w Check to choose the correct label and ribbon.
w Check the stop position setting
w Check the material and thickness of your paper with that of the cutter
specifications.
w Check the cutter.
w Open the print head the paper may be stuck.
w Check the printer strip sensor, it may be covered with dust
w Check label installation.
w Open the print head the paper may be stuck.
w Check if additional memory is installed.
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