Citizen CL-S400DT User manual

Technical Manual
CL-S400DT
Thermal Label & Barcode Printer
PZY90001-00
1.00E-1108

CL-S400DT ii
NOTICE
This document contains proprietary information of Citizen Systems Japan Co, Ltd. No part of this
document or its contents shall be used or reproduced without the express permission of Citizen
Systems Japan Co, Ltd.
CITIZEN®is a registered trade mark of CITIZEN HOLDINGS CO., LTD., Japan.
CITIZEN®es una marca registrada de CITIZEN HOLDINGS CO., LTD., Japón.
Datamax®is a registered trademark of Datamax Bar Code Products Corporation.
Zebra®is a registered trade mark of ZIP corp.
TrueTypeTM is a trademark of Apple Inc.
UFSTTM is a trademark of Monotype Imaging, Inc.
Other product names used in this document may be registered trademarks or trademarks of their
respective companies.
Copyright ©2011 by CITIZEN SYSTEMS JAPAN CO., LTD.

iii
CL-S400DT
CHAPTER 1SPECIFICATIONS
CHAPTER 2 OPERATING PRINCIPLE
CHAPTER 3 DISASSEMBLY AND MAINTENANCE
CHAPTER 4 TROUBLESHOOTING
CHAPTER 5 PARTS LISTS
CHAPTER 6 CIRCUIT DIAGRAMS
APPENDICES

CL-S400DT iv
Safety Precautions
To prevent personal injury or property damage, the following shall be strictly observed.
The degree of possible injury and damage due to incorrect use/maintenance or improperly
following instructions is described below.
Indicates a situation which, if not observed and handled properly,
could result in death or serious injury.
Indicates a situation which, if not observed and handled properly,
could result in injury or property damage.
: This is a mark to call attention to the reader.
Before starting disassembly/reassembly or mechanical adjustment, be sure to
disconnect the power cord from the power source. Otherwise, electric shock may occur.
Observe the following in maintenance work:
- Do not disassemble/reassemble or adjust the machine, if it functions properly.
Particularly, do not loosen screws on any component, unless necessary.
- After completing an inspection and before turning on the power, be sure to check that
there is no abnormality.
- Never try to print without media.
- Check that the media is properly set.
- Do not lay anything on the cover or lean against it during maintenance or while the
printer is in operation.
- During maintenance, be careful not to leave parts or screws unattached or loose
inside the printer.
- When handling a printed circuit board, do not use gloves, etc., which can easily
cause static electricity. Since ICs, such as CPU, RAM and ROM, might be destroyed
by static electricity, do not touch lead wires or windows unnecessarily.
- Do not put the printed circuit boards directly on the printer or on the floor.
- When disassembling or reassembling, check wires for any damage and do not pinch
or damage them. Also, run wires as they were.
Warning
Caution
Warning
Caution

Chapter 1 Specifications
1-1 CL-S400DT
CHAPTER 1
SPECIFICATIONS

Chapter 1 Specifications
CL-S400DT 1-2
CHAPTER 1 SPECIFICATIONS
TABLE OF CONTENTS
1-1. General Specifications ...................................................................................................... 1-3
1-2. Printable Area ................................................................................................................... 1-7
1-3. Printing Position Accuracy .............................................................................................. 1-8
1-4. Adjustable Sensor........................................................................................................... 1-9

Chapter 1 Specifications
1-1. General Specifications
1-3 CL-S400DT
1-1. General Specifications
Printing
Printing method Direct thermal
Main scanning line density: 203 dots/inch (8 dots/mm)
Sub-scanning line density: 203 dots/inch (8 dots/mm)
Resolution
Head 864 dots (effective dots: 832 dots)
Max. print width 104 mm 4.1 inch
Max. print length 812.8 mm 32 inch
Print density Print density is adjustable with software
Printing speed setting 6, 5, 4, 3 or 2 inches per second.
2-4 inches per second with optional peeler.
Print mode
Batch mode Normal printing (single or multiple sheets)
Tear off mode Feeds back media to the tear-off position after printing is completed.
Cut mode *1Prints while cutting at designated sheet units.
The following two kinds of cut mode operations are available.
• Backfeed
• Cut through
(Cut through refers to stopping present printing to cut the previously
printed label when it reaches the cut position. After cutting, printing
restarts but a gap may be created at the seam of the printing at this
time.)
Peel mode *1Peels labels from the liners after printing them.
Media
Types of media Roll, fanfold (continuous thermal media, thermal die-cuts, continuous
thermal tags, continuous thermal tickets)
Kinds of media Thermal-transfer media
Recommended media
*2
Heat-transfer media: label media (150LA-1 Ricoh)
tag media (130LHB Ricoh)
Max. media width 118.0 mm 4.65"
Min. media width 19.5 mm 0.77"
Min. label width 19.5 mm 0.77"
Min. label pitch *36.35 mm 0.25"
Max. media thickness 0.254 mm 0.01"
Max. media length 812.8 mm 32"
Min. media length 6.35 mm 0.25"
Min. media thickness 0.0635 mm 0.0025"
Max. external diameter: 127mm 5"Roll media diameter
Media core: 25.4 to 76mm
Min. media core external diameter
(when using label media): 50.8mm
1 to 3"
2"
*1: Options can be separately purchased.
*2: If you wish to use other media, please contact the shop where you bought this item.
*3: When a media pitch of less than 1 inch is used, activate the "Small Media Adjustment"
setting in the "Page Setup".

Chapter 1 Specifications
1-1. General Specifications
CL-S400DT 1-4
Bar code
For Datamax®emulation
One-dimension • Code 3 of 9 • UPC-A • UPC-E • EAN-13 (JAN-13)
• EAN-8 (JAN-8) • Interleaved 2 of 5 • Code 128
• HIBC (Modulus 43-used code 3 of 9) • Codabar (NW-7)
• Int 2 of 5 (Modulus 10-used Interleaved 2 of 5) • Plessey
• Case Code • UPC 2DIG ADD • UPC 5DIG ADD • Code 93
• Telepen • ZIP • UCC/EAN 128 • UCC/EAN128 (for K-MART)
• UCC/EAN128 Random Weight • FIM
Two-dimension • UPS Maxi Code • PDF-417 • Data Matrix • QR Code • Aztec
• RSS
For Zebra®emulation
One-dimension • Code 11 • Interleaved 2 of 5 • Code 39 • EAN-8 • UPC-E
• Code 93 • Code 128 • EAN-13 • Industrial 2 of 5
• Standard 2 of 5 • ANSI CODABAR • LOGMARS • MSI • Plessey
• UPC/EAN Extensions • UPC-A • POSTNET • Planet
Two-dimension • Code 49 • PDF-417 • CODA BLOCK • UPS Maxi Code
• Micro PDF-417 • Data Matrix • QR Code • RSS • TLC39
Font
For Datamax®emulation
1. Seven kinds of fixed pitch font
Overseas, English fonts and European fonts
2. OCR fonts
OCR-A*4, OCR-B*4
3. Proportional fonts
CG Triumvirate smooth font
CG Triumvirate bold smooth font
(6, 8, 10, 12, 14, 18, 24, 30, 36, 48 points)
• Character set: Conforms with code page 850 standards
4. TrueTypeTM rasterizer *5
For Zebra®emulation
1. Five kinds of fixed pitch font
Overseas, English fonts and European fonts
2. OCR fonts
OCR-A*4, OCR-B*4
3. Proportional font
CG Triumvirate Condensed Bold
4. True type™ rasterizer*5
*4:The OCR font may have a low recognition rate according to the reader.
*5:It is equipped with UFSTTM and TrueTypeTM rasterizer that are licensed from Monotype Imaging,
Inc.

Chapter 1 Specifications
1-1. General Specifications
1-5 CL-S400DT
Symbol set
PC866U Ukraina*6, PC Cyrillic, ISO 60 Danish/Norwegian, DeskTop,
ISO 8859/1 Latin 1, ISO 8859/2 Latin 2, ISO 8859/9 Latin 5, ISO
8859/10 Latin 6, ISO 8859/7 Latin/Greek, ISO 8859/15 Latin 9, ISO
8859/5 Latin/Cyrillic, ISO 69: French, ISO 21: German, ISO 15:
Italian, Legal, Math-8, Macintosh, Math, PC-858 Multilingual,
Microsoft Publishing, PC-8, Code Page 437, PC-8 D/N, Code Page
437N, PC-852 Latin 2, PC-851 Latin/Greek, PC-862 Latin/Hebrew, Pi
Font, PC-850 Multilingual, PC-864 Latin/Arabic, PC-8 TK, Code Page
437T, PC-1004, PC-775 Baltic, Non-UGL, Generic Pi Font, Roman-8,
Roman-9, ISO 17: Spanish, ISO 11: Swedish, Symbol, PS Text, ISO
4: United Kingdom, ISO 6: ASCII, Ventura International, Ventura
Math, Ventura US, Windows 3.1 Latin 1, Wingdings, Windows 3.1
Latin 2, Windows 3.1 Baltic (Latv, Lith), Windows 3.0 Latin 1,
Windows Latin/Cyrillic, Windows 3.1 Latin 5
Control language
Conforms to Datamax®programming language and Zebra®
programming language
Outline of electronic devices
CPU 32-bit RISC CPU
ROM Standard equipment: FLASH ROM 8MBytes (User area 1MByte)
RAM For Datamax®emulation:
Standard equipment: SDRAM 16MBytes (User area 1MByte)
For Zebra®emulation:
Standard equipment: SDRAM 16MBytes (User area 4MByte)
Media detection sensors
Transparent sensor Detects media gap between labels, notches on tags, and media end
Reflective sensors Detects reflective mark on back of media and media end.
Label peeling sensor *1-
Communication interfaces
Serial 2400 4800 9600 19200 38400 57600 115200 bps
USB USB2.0 (Full Speed: 12Mbps)
Communication interface options
Parallel IEEE1284 (Compatible, Nibble, ECP mode)
Network Ethernet
Indications and switches
LCD, LED LCD and LED (POWER, Error)
Buzzer Alarms, errors, etc.
Operating panel keys PAUSE, FEED, STOP, MODE
Head-up detection
sensor
Detects head open.
Power switch Turns power on and off.
*6:“PC866U Ukraina” is available for Datamax®emulation only.

Chapter 1 Specifications
1-1. General Specifications
CL-S400DT 1-6
Power supply
120V (-10%+6%), 1.5A, 60Hz (U.S.A., Canada)120V version
UL60950-1, CSA No. 950, FCC Part 15 Subpart B (Class A)
220V-240V (-10%+6%), 1.0A, 50/60Hz (Europe)220V version
EN60950-1, EN55022 (Class A), EN55024, EN61000-3-2,
EN61000-3-3
Power consumption (max. value)
120V version 50W (operating at 12.5% printing duty), 1.5W (standby (When
Standby Mode is in effect))
220V version 45W (operating at 12.5% printing duty), 1.6W (standby)
Others
Environment Operating temperature conditions:
Operating temperature: 0 to 40°C,
Printing guarantee temperature: 5 to 35°C,
Humidity: 30 to 80%, condensation free
(Conditions: ventilation, and natural convection)
Storage temperature conditions
Temperature: -20 to 60°C
Humidity: 5 to 85%, condensation free
(Conditions: Stored with the cover open and without paper installed,
ventilation, and natural convection)
[Operating and printing assurance condition] [Storage assurance condition]
External dimensions Approx. 206 (W) X 218 (D) X 150 (H) mm
Approx. 8.1 (W) X 8.6 (D) X 5.9 (H) inches
Weight Approx. 3.0 kg (6.6 lb.)
Accessories Test label media, CD-ROM (User's Manual), Quick Start Guide,
Power cord, “Shaft, Paper”, “Flange, Paper Wide”
Option Auto-cutter unit, Peeler unit, IEEE1284 Parallel I/F board, Ethernet I/F
board
0 535 40
30
40
80
Humidity %
Operating assurance temperature
Printing assurance temperature
Temperature °C
-20 60
5
85
Humidity %
Temperature °C
Storage assurance
temperature

Chapter 1 Specifications
1-2. Printable Area
1-7 CL-S400DT
1-2. Printable Area
The printable area of the printer is as follows:
When media is set to the printer, it must be aligned with the media guides at the left of the printing
mechanism. Though the available maximum media width is 118 mm (4.65"), there are unprintable
areas on both sides: 2.5 mm (0.10") width on the left side and 11.5 mm (0.45") width on the right
side.
The left side unprintable area applies for any size media.
Maximum media width: 118 mm (4.65")
104.0 mm (4.09”)
11.5 mm (0.45")
Reference edge
Unprintable area
Printable area
Media guides
Direction of media feed
2.5 mm (0.10")

Chapter 1 Specifications
1-3. Printing Position Accuracy
CL-S400DT 1-8
1-3. Printing Position Accuracy
By factory default, the printing start position is 2.5 mm (0.10") away from the left end of the media
and 1 mm (0.04") backward the leading edge of the label, U-shaped notch, or black mark.
2.5 mm (0.10") is the necessary value to avoid printing in the unprintable area as mentioned in "1-2.
Printable Area".
The printing start position will deviate from the ideal position as follows:
1 ± 2 mm*
2
(0.04 ± 0.08")
Reference edge
(Paper guides)
Printable area
Direction of media feed
Ideal printing start position
Actual printing start position*
1
2.5 ± 1 mm*
3
(0.10 ± 0.04")
100 ± 2 mm*
4
(39.4 ± 0.08")
Maximum media width: 118 mm (4.65")
Unprintable area
2.5 mm
(0.10")
*1: Actual printing start position. May deviates from the ideal one in the indicated range.
*2: Deviation of vertical positioning when printing position is set to 0.
*3: Deviation of horizontal positioning when printing position is set to 0.
*4: Deviation of vertical printing position when 100 mm is specified from the printing start
position.
1 mm (0.04")
Unprintable area

Chapter 1 Specifications
1-4. Adjustable Sensor
1-9 CL-S400DT
1-4. Adjustable Sensor
Adjustable sensor consists of two media sensors; the upper sensor (transparent sensor) and the
bottom sensor (reflective sensor).
To use the adjustable sensor as “Transparent Sensor”, both upper sensor (transparent sensor) and
bottom sensor (reflective sensor) are used by aligning their position.
Meanwhile, to use it as “Reflective Sensor”, the bottom sensor (reflective sensor) alone is used by
aligning it with a black mark on the back of media.
By factory default, the adjustable sensor position is set to 59mm (2.32") from the paper guides at
the left.
For details about the media sensors, refer to "2-1-3 Media Detection Mechanism".
Moveable range of sensors
Upper sensor:
1.2 to 58.2 mm (0.05 to 2.29")
Lower sensor:
2 to 59 mm (0.05 to 2.32")
59 mm (2.32")
(Factory default)
T: Upper sensor
(Phototransistor)
S: Lower sensor
(Photodetector)
S: Lower sensor
(Light emitter)
Maximum media width: 118 mm (4.65")
104.0 mm
(
4.09"
)
11.5 mm
(0.45")
Media guides
Direction of media feed
2.5 mm
(
0.10"
)
Unprintable area
Unprintable area
Center
Printable area
Media

Chapter 2 Operating Principles
CL-S400DT
CHAPTER 2
OPERATING PRINCIPLES

Chapter 2 Operating Principles
CL-S400DT 2-2
CHAPTER 2 OPERATING PRINCIPLES
Table of Contents
2-1. Operation of Each Mechanism ....................................................................................... 2-4
2-1-1. Locations of Main Electrical Parts ...................................................................... 2-4
2-1-2. Media Feed Mechanism..................................................................................... 2-5
2-1-3. Media Detection Mechanism.............................................................................. 2-6
(1) Detecting labels/U-shaped notches of tag................................................. 2-6
(2) Detecting black marks on tag .................................................................... 2-7
(3) Detecting continuous media ...................................................................... 2-7
(4) Controlling the amount of light emitted from the light emitter .................... 2-7
2-1-4. Print Head Up/Down Detection Mechanism....................................................... 2-8
2-1-5. Head Balance Adjustment Mechanism ..............................................................2-9
2-1-6. Media Thickness Adjustment Mechanism .......................................................... 2-10
2-2. Operation of Control Parts .............................................................................................. 2-12
2-2-1. Configuration of Printer ...................................................................................... 2-12
(1) AC Inlet & Power Switch/Filter & Power Supply section............................ 2-13
(2) SA Main PCB............................................................................................. 2-13
(3) Operation panel (SA LCD PCB) ................................................................ 2-13
(4) Thermal print head (SA2 Head)................................................................. 2-13
(5) Sensors ..................................................................................................... 2-14
(6) SA, Motor................................................................................................... 2-14
(7) Serial I/F (RS-232C) .................................................................................. 2-14
(8) USB (Universal Serial Bus) I/F .................................................................. 2-14
(9) Parallel I/F (IEEE1284) (Option)................................................................ 2-14
(10) Ethernet Board (Option)........................................................................... 2-14
2-2-2. Memory Map ...................................................................................................... 2-15
2-2-3. Sensors .............................................................................................................. 2-16
(1) Head up sensor ......................................................................................... 2-16
(2) Adjustable sensor ...................................................................................... 2-17
(3) Head temperature sensor.......................................................................... 2-19
2-2-4. Drivers................................................................................................................ 2-20
(1) Motor driver................................................................................................... 2-20
(2) Head control circuit.................................................................................... 2-21
(3) Head control circuit.................................................................................... 2-22
2-2-5. Other circuits ...................................................................................................... 2-23
(1) Regulator circuits....................................................................................... 2-23
(2) Reset circuit............................................................................................... 2-24
(3) Clock circuit ............................................................................................... 2-24
(4) Operation panel circuit............................................................................... 2-25
(5) USB I/F control circuit................................................................................ 2-26
(6) RS232C I/F circuit ..................................................................................... 2-26
(7) Optional I/F circuit...................................................................................... 2-27
2-3. Operation Panel.............................................................................................................. 2-28
2-3-1. Normal operation mode...................................................................................... 2-28

Chapter 2 Operating Principles
2-3
CL-S400DT
(1) LED............................................................................................................ 2-28
(2) LCD (Liquid crystal display)....................................................................... 2-28
(3) Keys........................................................................................................... 2-28
2-3-2. Test mode........................................................................................................... 2-30
(1) Self print mode .......................................................................................... 2-30
(2) Hex dump mode ........................................................................................ 2-31
(3) Menu list print mode .................................................................................. 2-32
2-3-3. Factory/Service mode ........................................................................................ 2-34
(1) How to enter Factory/Service Mode ............................................................. 2-34
(2) How to print the Factory Mode Settings menus............................................ 2-36
(3) How to change the settings in Factory mode ............................................ 2-39
(3-1) Submenu table in Factory mode................................................... 2-39
(3-2) Setting submenu in Factory mode................................................ 2-42
(4) How to operate submenus in Service mode.............................................. 2-43
(4-1) Submenu table in Service mode ....................................................... 2-43
(4-2) Submenu operation in Service mode................................................ 2-44
2-4. Interface.......................................................................................................................... 2-46
2-4-1. Serial Interface ................................................................................................... 2-46
(1) Specifications............................................................................................. 2-46
(2) Signal line and pin assignment.................................................................. 2-46
(3) Protocol ..................................................................................................... 2-47
2-4-2. USB Interface..................................................................................................... 2-48
(1) Specifications............................................................................................. 2-48
(2) Signal line and pin arrangement................................................................ 2-48
2-4-3. Parallel Interface (Option) .................................................................................. 2-48
(1) Specifications............................................................................................. 2-48
(2) Signal line and pin assignment.................................................................. 2-49
(3) Parallel port status signals when an error occurs...................................... 2-49
(4) Compatible timing specification ................................................................. 2-50

Chapter 2 Operating Principles
2-1. Operation of Each Mechanism
CL-S400DT 2-4
2-1. Operation of Each Mechanism
This printer is a direct thermal label & barcode printer comprised of the following mechanisms:
media feed, label/tag detection, print head up/down detection, head balance adjustment and media
thickness adjustment.
This section describes the operation of each of these mechanisms.
2-1-1. Locations of Main Electrical Parts
The following figure shows the locations of main electrical parts.
Part name Description
Unit, Motor This motor feeds media.
SA2 Head Up SW
(Head Up Sensor)
This sensor is a mechanical switch to detect the print head position;
up or down.
SA Adjust Sensor U
(Adjustable sensor
(Transparent sensor))
This sensor consists of a phototransistor and is used to detect a
label stuck on liner and a U-shaped notch on tag by the
combination of this sensor and the light emitter of the “SA Adjust
Sensor L”. The sensor also detects a media end.
SA Adjust Sensor L
(Adjustable sensor
(Reflective sensor))
This is a reflective type photointerrupter that detects a black mark
on the back of media and media end.
SA2 Head This is a thermal head consisting of a head driver and thermal
elements. Used to print on media by heating the thermal elements.
It incorporates two thermistors to detect the temperature of “SA2
Head”.
SA Main PCB Controls entire printer system.
100V 200V
0
1
2
3
4
5
Unit Motor
SA Head Up SW
SA Adjust Sensor L
SA Adjust Sensor U
SA2 Head
SA LCD PCB
SA Main PCB
SA Power Supply

Chapter 2 Operating Principles
2-1. Operation of Each Mechanism
2-5 CL-S400DT
Part name Description
SA Power Supply Converts AC to DC24 V and feeds it to the “SA Main PCB”.
SA LCD PCB Consists of LCD, LED and switches for operation.
2-1-2. Media Feed Mechanism
The major components of the media feed mechanism are:
(a) Unit, Motor
(b) SA2 Platen
(c) Gear Train (Gear Reduction 1, Gear Reduction 2, Gear Idle)
By closing the cover, media is pushed against the “SA2 Platen”.
As the “Unit, Motor” (stepping motor) turns counterclockwise viewing from the right side of the
printer, the “SA2 Platen” turns counterclockwise via the gear train (“Gear Reduction 1”, Gear
Reduction 2” and “Gear Idle”) and media is fed forward by the friction force produced between the
“SA2 Platen” and the “SA2 Head”.
When the “Unit, Motor” turns clockwise, media is fed backwards.
One step of the “Unit, Motor” feeds media by 1/16 mm (0.0025").
1
2
3
4
5
Gear Reduction 1
Gear Reduction 2
Gear Idle
SA2 Platen
Unit, Motor
SA2 Head
Media
Thermal elements

Chapter 2 Operating Principles
2-1. Operation of Each Mechanism
CL-S400DT 2-6
2-1-3. Media Detection Mechanism
The major components of the media detection mechanism are:
(a) SA Adjust Sensor U (Upper sensor (transparent sensor) of the adjustable sensor)
(b) SA Adjust Sensor L (Lower sensor (reflective sensor) of the adjustable sensor)
The adjustable sensor consists of the transparent sensor (upper sensor) and the reflective sensor
(Lower sensor). The transparent sensor consists of 1 phototransistor and the reflective sensor
consists of a reflective type photointerrupter.
The following table shows how the sensors detect a label, U-shaped notch or black mark.
(1) Detecting labels/U-shaped notches of tag
For detecting labels on the liner or U-shaped notches of tag, both transparent sensor (upper
sensor) and reflective sensor (lower sensor) are used.
In this case, both sensors need to be aligned with a label center or with a U shape notch.
* Media Sensor menu: See Through (default)
Detecting labels:
The light emitted from the light emitter of the transparent sensor passes through the label and
reaches the phototransistor of the reflective sensor. Since the amount of light that can pass
through the liner part alone and the label part (label stuck on the liner) differs, the current
flowing into the phototransistor also differs. Therefore the output voltage level changes
accordingly.
From the difference in output of the phototransistor, the CPU on the “SA Main PCB” can
distinguish between the liner part and label part so that it can detect the leading edge of label.
Also, media end can also be detected from the difference in output of the phototransistor.

Chapter 2 Operating Principles
2-1. Operation of Each Mechanism
2-7 CL-S400DT
Detecting U-shaped notches of tag:
For detecting U-shaped notches of tag, the same principle as for detecting label applies,
except that the light is directly falls on the phototransistor of the reflective sensor through a
notch.
(2) Detecting black marks on tag
For detecting black marks on tag, only reflective sensor is used and it needs to be aligned with
the mark.
* Media Sensor menu: Reflective
The light emitted from the light emitter of the reflective sensor is reflected by the tag (at other
than the black mark) and reaches the photodetector of the reflective sensor. At the black mark,
the light is not reflected. The CPU on the “SA Main PCB” detects the black mark by sensing the
output of the phototransistor. Also, media end is detected by monitoring the output.
(3) Detecting continuous media
For detecting continuous media, only the reflective sensor is used.
* Media Sensor menu: None
In this case, only media end is detected by the reflective sensor.
(4) Controlling the amount of light emitted from the light emitter
The amount of light emitted from the light emitter is well controlled according to the selected
sensor by the Media sensor menu (“See through” or “Reflective”) for label, U-shaped notch,
black mark or continuous media.