Citizen LINE THERMAL PRINTER CT-S280 User manual

LINE THERMAL PRINTER
MODEL CT-S280
User’s Manual

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En
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This printer conforms to the following Standards:
The Low Voltage Directive 2006/95/EC, formerly 72/23/EEC,
the EMC Directive 2004/108/EC, formerly 89/336/EEC, the RoHS
Directive 2002/95/EC, and the WEEE Directive 2002/96/EC.
LVD:EN60950
EMC : EN55022 Class A
EN61000-3-2
EN61000-3-3
EN55024
This declaration is applied only for 230V model.
Declaration of Conformity
CITIZEN is a registered trade mark of Citizen Holdings Co., Japan
CITIZEN es una marca registrada de Citizen Holdings Co., Japón
Company names and product names in this manual are trademarks or
registered trademarks of relevant companies.
Copyright c 2009 by CITIZEN SYSTEMS JAPAN CO., LTD.

IMPORTANT: This equipment generates, uses, and can radiate radio frequency energy
and if not installed and used in accordance with the instruction manual, may cause
interference to radio communications. It has been tested and found to comply with
the limits for a Class A computing device pursuant to Subpart J of Part 15 of FCC
Rules, which are designed to provide reasonable protection against such interference
when operated in a commercial environment. Operation of this equipment in a
residential area is likely to cause interference, in which case the user at his own
expense will be required to take whatever measures may be necessary to correct
the interference.
CAUTION: Use shielded cable for this equipment.
Sicherheitshinweis
Die Steckdose zum Anschluß dieses Druckers muß nahe dem Gerät angebracht und
leicht zugänglich sein.
For Uses in Canada
This digital apparatus does not exceed the class A limits for radio noise emissions
from digital apparatus, as set out in the radio interference regulations of the Canadian
department of communications.
Pour L’utilisateurs Canadiens
Cet appareil numérique ne dépasse pas les limites de carégorie a pour les émissions
de bruit radio émanant d’appareils numériques, tel que prévu dans les réglements
sur l’interférence radio du départment Canadien des communications.

—1 —
GENERAL PRECAUTIONS
●Before using this product, be sure to read through this manual. After having read
this manual, keep it in a safe, readily accessible place for future reference.
●The information contained herein is subject to change without prior notice.
●Reproduction or transfer of part or all of this document in any means is prohibited
without permission from CITIZEN SYSTEMS.
●Note that CITIZEN SYSTEMS is not responsible for any operation results regardless
of missing, error, or misprinting in this manual.
●Note that CITIZEN SYSTEMS is not responsible for any trouble caused as a result
of using options or consumables that are not specified in this manual.
●Except explained elsewhere in this manual, do not attempt to service, disassemble,
or repair this product.
●Note that CITIZEN SYSTEMS is not responsible for any damage attributable to
incorrect operation/handling or improper operating environments that are not
specified in this manual.
●Data are basically for temporary use, not stored for a long period or permanently.
Please note that CITIZEN SYSTEMS is not responsible for damage or lost profit
resulting from the loss of data caused by accidents, repairs, tests or other
occurrence.
●If you find loss of information, error, or uncertain matter, please contact your
CITIZEN SYSTEMS dealer.
●If you find any disordered or missing page(s), contact your CITIZEN SYSTEMS
dealer for replacement.

—2 —
SAFETY PRECAUTIONS ... WHICH SHOULD BE STRICTLY OBSERVED
Before using this product for the first time, carefully read these SAFETY PRECAUTIONS.
Incorrect operation may result in unexpected accidents (fire, shock, or injury).
●After having read this Manual, keep it in a safe, readily accessible place for future
reference.
●Some of the descriptions contained in this manual may not be relevant to some printer
models.
In order to prevent injury hazard to operators, third parties or damage to property, special
warning symbols are used in this user’s manual to indicate important items to be strictly
observed.
The following describes the degree of hazard and damage that could occur if the printer
is improperly operated by ignoring the instructions indicated by the warning symbols.
This symbol is used to alert your attention to important items.
Neglecting precautions indicated by this symbol may result in fatal or serious injury.
WARNING
Neglecting precautions indicated by this symbol may result in injury or damage to
properties.
CAUTION
This symbol is used to alert you to the danger of electric shock or electrostatic
damage.
This symbol denotes a request to unplug the printer from the wall outlet.
This symbol is used to indicate the “information”on the use, or the like.
This symbol is used to indicate prohibited actions.

—3 —
Do not use or store this product in a place where it will be exposed to:
●Flames or moist air
●Direct sunlight
●Hot airflow or radiation from a heating device
●Salty air or corrosive gases
●Ill-ventilated atmosphere
●Chemical reactions in a laboratory
●Airborne oil, steel particles, or dust
●Static electricity or strong magnetic field
•Neglecting these warnings may result in printer failure, overheating,
emission of smoke, fire, or electric shock.
PRECAUTIONS ON PRINTER INSTALLATION
Do not drop any foreign object nor spill liquid into the printer. Do not
place any object on the printer either.
●Do not drop any metallic object such as paper clip, pin or screw into
the printer.
●Do not place a flower vase, pot or cup containing water on the printer.
●Do not spill coffee, soft drinks or any other liquid into the printer.
●Do not spray insecticide or any other chemical liquid over the printer.
•A metallic foreign object, if accidentally dropped into the printer,
may cause printer failure, fire, or electric shock. Should it occur,
immediately turn the printer off, unplug it from the supply outlet,
and call your local CITIZEN SYSTEMS dealer.
Do not handle the printer in the following ways:
●Do not allow the printer to sustain strong impacts or hard jolts (e.g.,
trampling, dropping, striking with a hard edge).
●Never attempt to disassemble or modify the printer.
•Neglecting to handle properly may result in printer failure,
overheating, emission of smoke, fire, or electric shock.
●Do not hold the cover when carrying your printer. Otherwise, damage
to the equipment or malfunction may occur.
WARNING
Install, use, or store the printer out of the reach of children.
•Electric appliances could cause an unexpected injury or accident if
they are handled or used improperly.
•Keep the power cord and signal cables out of the reach of children.
Also children should not be allowed to gain access to any internal
part of the printer.
•The plastic bag the printer came in must be disposed of properly or
kept away from children. Wearing it over the head may lead to
suffocation.

—4 —
Place the printer on a flat, stable surface without vibration.
•Otherwise dropping may cause injury.
Do not use the printer under the following conditions.
●A state where the printer ventilation holes are blocked by a nearby
wall or something
●A state where any object is placed on the printer
●A state where the printer is covered or wrapped by a cloth or bed
clothing
•Be careful about internal heat buildup, which could cause fire and
deform the case.
●Avoid using the printer near a radio or TV set or from supplying it
from the same outlet as these appliances.
●Avoid using the printer interconnected with a cable or cord that has
no protection against noise. (For interconnections, use shielded or a
twisted pair of cables and ferrite cores, or other anti-noise devices.)
●Avoid using the printer with a device that is a strong source of noise.
•The printer may have an adverse effect on nearby radio or TV
transmissions. There may also be cases when nearby electrical
appliances adversely influence the printer, causing data errors or
malfunction.
CAUTION
Use the printer with its grounding post connected to a convenient
grounding facility.
•If leakage occurs electric shock may result.
Do not connect the printer’s grounding post onto any of the following
facilities.
●Utility gas piping
A gas explosion could result
●Telephone line ground
●Lightning rod
If lightning strikes a large surge of current may cause fire or shock.
●Utility water pipes
Plastic water pipes should not be used for grounding. (Those
approved by a Waterworks Department may be used.)
Before connecting or disconnecting the grounding lead to or from the
printer, always unplug it from supply outlet.

—5 —
PRECAUTIONS IN HANDLING THE PRINTER
Please observe the following precautions for power source and power
cord:
●Do not plug or unplug the power cord with a wet hand.
●Use the printer only at the specified supply voltage and frequency.
●Use only the specified AC adapter with the printer.
●Check to make sure that the supply outlet from which the printer is
powered has a sufficient capacity.
●Do not supply the printer from a power strip or current tap shared
with other appliances.
●Do not plug the power cord into a supply outlet with dust or debris
left on its plug.
●Do not use a deformed or damaged power cord.
●Do not move the printer while the printer power is on.
•Neglecting to handle properly may result in printer failure, emission
of smoke, fire, or electric shock.
•An overload may cause the power cord to overheat or fire or the
circuit breaker to trip.
●Do not allow anything to rest on the power cord. Do not place the
printer where the power cord will be trampled on.
●Do not use or carry the printer with its power cord bent, twisted, or
pulled.
●Do not attempt to modify the power cord unnecessarily.
●Do not lay the power cord in the neighbor of a heating device.
•Neglecting these cautions may cause wires or insulation to break,
which could result in leakage, electric shock, or printer failure. If a
power cord sustains damage contact your CITIZEN SYSTEMS dealer.
●Do not leave things around the supply outlet.
●Supply power to the printer form a convenient wall outlet, readily
accessible in an emergency.
•The printer may not be immediately shut down in an emergency.
●Insert the power plug fully into the outlet.
●If the printer is not to be used for a long time, leave it disconnected
from its supply outlet.
●Hold the plug and connector when plugging or unplugging the power
cord or signal cable after turning off the printer and the appliance
connected to it.
WARNING

—6 —
Caution label is attached on the position shown in the following figure. Carefully
read the precautions in handling before using the printer.
THIS LABEL INDICATES THE
RISK OF ANY INJURY DUE TO
“HIGH TEMPERATURE”OF
THE PRINT HEAD.
To prevent possible malfunction or failure observe the following.
●Avoid operating the printer without paper properly loaded.
●Avoid the use of paper not complying with specifications.
•May result in poor print quality.
●Avoid using torn pieces of paper or spliced with plastic adhesive
tapes.
●Avoid forcibly pulling already loaded paper by hand.
●Avoid wedging the paper in by the paper cover.
•May jam paper. To release, refer to “Removing Jammed Paper”in
this manual.
●Avoid using a sharp pointed device to operate panel keys.
Be sure to firmly insert the cable plug into its mating socket.
•A cross connection may damage the printer’s internal electronics or
the host system’s hardware.
•Neglecting this caution may result in malfunction or failure.
To prevent injury and printer failures from worsening, observe the
following:
●Do not touch the printing surface of the thermal head.
●Do not touch any of the moving parts (e.g., paper cutter, gears, active
electrical parts) while the printer is working.
●In case of trouble do not attempt to repair the printer. Ask CITIZEN
SYSTEMS service for repair.
●Be careful that the paper cover does not entrap your hands or fingers.
●Be careful with sharp edges on the printer. Don’t allow them to injure
you or damage property.
•May result in electric shock, burn, or injury.
•If the printer emits smoke, an odd smell, or unusual noise while
printing, immediately abort the current print session and unplug
the printer from the supply outlet.
CAUTION

—7 —
Observe the following precautions for daily maintenance.
●When cleaning the printer, always turn it off and unplug it from the
supply outlet.
●Use a soft, dry cloth for cleaning the surface of the printer case.
●For severe stains, use a soft cloth slightly dampened with water.
●Never use organic cleaning solvent such as alcohol, paint thinner,
trichloroethylene, benzene, or ketone. Never use a chemically
processed cleaning cloth.
●To remove paper chips, use a soft brush.
●When transporting the printer, remove the roll paper form its paper
holder.
CAUTION
•The thermal head is at a dangerously high temperature immediately
after printing. Allow it to cool off before launching maintenance
work.
DAILY MAINTENANCE

—8 —
THE TABLE OF CONTENTS
1. GENERAL OUTLINE ...................................................................9
1.1 Features ..........................................................................................9
1.2 Unpacking .....................................................................................10
1.3 Model Classification .....................................................................10
1.4 Basic Specifications ..................................................................... 11
2. EXPLANATION OF PRINTER PARTS ....................................... 12
2.1 Printer Appearance ......................................................................12
2.2 Paper Cover Inside .......................................................................14
2.3 Other Built-in Functions ............................................................... 14
3. PREPARATION .......................................................................... 15
3.1 Connecting the AC Adapter and AC Power Cord ......................15
3.2 Connecting Interface Cables .......................................................16
3.3 Installing the Printer ..................................................................... 17
3.4 Setting DIP Switch .......................................................................18
3.5 Adjusting the Paper Near-end Sensor ........................................19
4. MAINTENANCE AND TROUBLESHOOTING ..........................20
4.1 Setting/Replacing Paper Rolls .....................................................20
4.2 Removing Jammed Paper ...........................................................21
4.3 Cleaning the Print Head ...............................................................21
4.4 Self-printing ..................................................................................22
4.5 Hexadecimal Dump Printing ....................................................... 22
4.6 Error Indication .............................................................................23
5. OTHER .......................................................................................24
5.1 External Views and Dimensions ................................................. 24
5.2 Printing Paper ...............................................................................25
5.3 Manual Setting of Memory Switch .............................................26

—9 —
1. GENERAL OUTLINE
The CT-S280 is a thermal line printer designed for use with a broad array of
terminal equipment including, data, POS, and kitchen terminals.
With extensive features, it can be used in a wide range of applications.
1.1 Features
●Compact design.
●Paper drop-in mechanism facilitating paper handling and head cleaning.
●High speed (80 mm/s) printing.
●Low-noise printing.
●Built-in input buffer.
●Barcode printing.
●Page mode. Now you can arrange pages freely.
●Registration of user-defined characters and logos into flash memory.
●A variety of functions selectable with memory switch.
●The printer allows horizontal or wall mounting installation.
●Various kinds of customization are permitted.
●2-color printing is supported.

— 10 —
CT-S 280 RS U - WH
Case color
WH: Cool white
BK: Black
Destination (Letters + Power cord)
J: Japan
E: Europe
U: USA
1.3 Model Classification
The printer models are classified by the following designation method:
Interface
PA: Parallel IEEE 1284 compliant
RS: Serial RS-232C compliant
UB: USB
Model name
1.2 Unpacking
When unpacking the printer, confirm that the following are provided:
●Printer: 1
●AC adapter: 1
●AC power cord: 1
●Sample paper roll: 1 roll
●Quick start guide: 1
●CD-ROM: 1
Printer
AC adapter
Sample paper roll AC power cord
CD-ROM
Quick start guide
* The AC power cord plug will vary depending of the region.

— 11 —
Item Specifications
Model CT-S280RSU CT-S280RSE CT-S280RSJ
CT-S280PAU CT-S280PAE CT-S280PAJ
CT-S280UBU CT-S280UBE CT-S280UBJ
Print method Line thermal dot print method
Print width 48 mm/384 dots
Dot density 8 (horizontal) ×8 (vertical) dots/mm (203 dpi)
Print speed 80 mm/s (Fastest, print density: Standard level)
Number of print columns Font A: 32 columns; 12 ×24 dots horizontal and vertical
Font B: 42 columns; 9 ×24 dots
Font C: 48 columns; 8 ×16 dots
Kanji Font A: 16 columns
Kanji Font C: 24 columns
Character size Font A: 1.50 ×3.00 mm
Font B: 1.13 ×3.00 mm
Font C: 1.00 ×2.00 mm
Kanji Font A: 3.00 ×3.00 mm
Kanji Font C: 2.00 ×2.00 mm
Character type Alphanumeric, International, PC437/850/852/857/858/860/863/
864/865/866/WPC1252/Katakana/Thai code 18
Kanji (JIS level 1, level 2), Kana, JIS C 6226-1983
User-defined logo/character User-defined characters and logos can be registered in flash
memory.
Types of bar code UPC-A/E, JAN (EAN) 13/8 columns, ITF, CODE 39, CODE 128,
CODABAR, CODE 93
Line spacing 4.23 mm (1/6 inch) settable with command
Paper roll Thermal paper roll: 58 mm ×φ83 mm
Paper thickness: 0.065 to 0.075 mm
Interfacing Serial (RS-232C compliant), Parallel (IEEE 1284 compliant), USB
Input buffer 4k bytes/45 bytes
Supply voltage DC 8.5 V ±5%
Power consumption Standby: Approx. 2 W, Printing: Approx. 18 W (Approx. 26 W max.)
AC adapter Rated input: AC 100 to 240 V, 50/60 Hz
Rated output: DC 8.5 V, 2.5 A
Weight Approx. 430 g
Outside dimensions 106 (W) ×170 (D) ×116.5 (H) mm
Operating temperature and humidity 5 to 40°C, 10 to 85% RH (No condensation)
Storage temperature and humidity −20 to 60°C, 10 to 90% RH (No condensation)
Reliability Print head life:
Pulse resistance: 1 ×108pulses (Printing rate 12.5%)
Wear resistance: 50 km (At normal temperature/humidity
with recommended paper used)
Safety standard *
VCCI Class A, UL, C-UL, FCC Class A, TUV, GS, CE marking
Note:
*: Represents the safety standards acquired when CITIZEN SYSTEMS-made adapters (28AD series)
are used.
1.4 Basic Specifications

—12 —
2. EXPLANATION OF PRINTER PARTS
2.1 Printer Appearance
Paper cover
Power switch
Cover open button
Operation panel
●Paper cover
Paper is located inside this cover.
●Cover open button
To refill or replace paper, open the paper cover by pushing this button.
●Power switch
This switch turns the printer power ON/OFF.

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●POWER LED
Lights when the printer power is on and goes off when the printer power is
off. May blink or light in a special mode or in case of a failure.
●FEED switch
Pressing this switch once causes a paper feed of one line. Pressing the switch
continuously causes the paper to feed continuously.
●ERROR LED
Lights or blinks when paper is empty or in case of a failure.
The interval length of blinking shows the type of error.
POWER LED ERROR LEDFEED switch
Rear Connectors
Operation Panel
●Power connector
Connects to the cable from AC adapter.
●Interface connector (Serial, parallel, etc.)
Connects to the interface cable.
Power connector
Interface connector
(Serial, parallel, etc.)

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2.2 Paper Cover Inside
●Paper cutter
Used to cut paper at the time of paper setting or at the end of printing.
●Print (thermal) head
Prints characters and/or graphic data on thermal paper.
●Paper-end sensor
Stops printing when this sensor detects paper end.
●Paper feed roller
Feeds paper as part of print mechanism.
●Paper-near-end sensor
Detects paper low state. Changes the setting in accordance with the inner
diameter of paper roll or setting status.
2.3 Other Built-in Functions
●User memory
Allows registration of user-defined characters and logo data on the nonvolatile
memory. Data registered remains even after the printer power is off.
●Memory switch
Setting of various kinds of functions can be registered on the nonvolatile
memory. The setting registered is valid even if the printer power is turned
off. In addition, memory switch setting can be changed by manual operation.
Paper-near-end
sensor
Print (thermal)
head
Paper cutter Paper-end sensor
Paper feed roller

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3. PREPARATION
3.1 Connecting the AC Adapter and AC Power Cord
1. Turn off the printer power.
2. Plug in the cable connector of the AC adapter to the power connector at the
rear of the printer.
3. Connect the AC power cord to the inlet of the printer, and insert the AC
power-cord plug into a suitable wall outlet.
CAUTION!
●Use only the specified AC adapter with the printer.
●When disconnecting a cable, do not pull out by the cable. Always hold the plug.
●Always keep the AC power supply away from other noise generating equipment.
●Do not pull the power cord. Otherwise fire, electric shock, or power disconnection
may result.
●If lightning is approaching, unplug the AC power cord from the wall outlet. Otherwise
fire or electric shock may result.
●Keep the power cord away from heat generating appliances. Otherwise the shield of
power cord may be fused resulting in a fire or electric shock.
●If the printer is not to be used for a long time, leave it disconnected from its supply
outlet.
●Lay the cable not to be caught by the leg or the like.
Inlet
Cable connector
AC adapter
AC power cord

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Printer
Pin Signal
2TXD
3RXD
4RTS
6 DSR
7SG
20 DTR
PC
Signal Pin
FG 1
TXD 2
RXD 3
CTS 5
DSR 6
SG 7
DTR 20
3.2 Connecting Interface Cables
Turn off the printer and unplug the power connector. Then follow the procedure
for interface cable connection.
Orient the interface cable terminal correctly and insert it into the interface
connector.
CAUTION!
●When disconnecting the cable, always hold the connector.
●Lay the cable not to be caught by the leg or the like.
Serial Interface Parallel Interface
For serial interface cable, use the one with the following connection.
25-pin - 25-pin cable 9-pin - 25-pin cable
Printer
Pin Signal
1FG
2 TXD
3 RXD
4RTS
6 DSR
7SG
20 DTR
PC
Signal Pin
RXD 2
TXD 3
DTR 4
SG 5
DSR 6
CTS 8
USB Interface