BIXOLON SMP6300II User manual

User’s Manual
SMP6300II
Thermal Printer Mechanism
Rev. 2.00
http://www.bixolon.com

Rev. 2.00
- 2 -
SMP6300II
REVISION SHEET
Revisions
Design section
Revision
REV.
Date
WRT
CHK
APL
Page
Description
1.00 14.11.17 M.W.LEE J.S.LEE J.T.KIM
1.01 16.10.26 J.M.LEE M.J.LEE J.S.LEE 15,21,22,18
Add specification by TPH manufacturer,
Add Step motor code
1.01 17.01.24 M.W.LEE J.S.LEE J.S.LEE 44
Cutter sensor circuit diagram
modification
2.00
20.07.23
S.H.JEON
N.Y.KIM
J.S.LEE
ALL
250mm/s specification upgrade

Rev. 2.00
- 3 -
SMP6300II
■ Table of Contents
1. Specifications ............................................................................................................14
2. Disassembly diagram................................................................................................16
3. Part names .................................................................................................................17
4. Connector pin arrangement......................................................................................18
4-1 Main FPC cable (50pin)..........................................................................................18
4-2 FPC aux cable (BMS option)..................................................................................19
5. Thermal Printer Head.................................................................................................20
5-1 Specifications..........................................................................................................20
5-2 Block Diagram of the Head.....................................................................................20
5-3 Printing position of transferred data........................................................................21
5-4 Dimensions of thermal device.................................................................................22
5-5 Electrical Characteristics of the Thermal Head.......................................................23
5-6 Thermal Head Drive Timing Diagram .....................................................................24
5-7 Maximum Condition................................................................................................25
5-8 Head Supply Voltage..............................................................................................25
5-9 Peak current...........................................................................................................25
5-10 Pulse Width Control of the Head...........................................................................26
5-10-1 Voltage pulse width...................................................................................26
5-10-2 Calibration of the pulse width when temperature changes .......................26
5-10-3 Example calculation of head operating pulse width(SLT=0.5ms/line).......26
5-10-4 Thermistor specifications..........................................................................27
5-10-5 Detection of abnormal temperature of thermal head ................................28
6. Step Motor (Paper Feed) ...........................................................................................29
6-1 Specifications..........................................................................................................29
6-2 Example drive circuits.............................................................................................29
6-3 Drive sequence (Motor rotates in counterclockwise direction)................................31
6-4 Motor Timing Diagram............................................................................................32
6-5 Drive Frequency Acceleration (Acceleration Control).............................................32
7. Sensor.........................................................................................................................34
7-1 Paper Detection Sensor and Black Mark Detection Sensor....................................34
7-1-1 Absolute maximum rating ...........................................................................34
7-1-2 Electrical Characteristics ............................................................................34
7-1-3 Paper Detection Sensor Sample External Circuits .....................................35
7-1-4 Black Mark Detection Sensor Sample External Circuits .............................36
7-2 Platen Roller Block Detection Switch......................................................................37
7-2-1 Sample external circuits..............................................................................37
7-3 Auto Cutter .............................................................................................................38
7-4 Step Motor (Auto Cutter).........................................................................................40
7-4-1 Auto Cutter Drive Circuits ...........................................................................40
7-4-2 Auto Cutter Sensor(Home Sensor).............................................................41
7-4-3 Auto Cutter Flow Chart ...............................................................................43
7-4-4 Acceleration Step........................................................................................44
7-4-5 Auto Cutter Timing Diagram........................................................................45

Rev. 2.00
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SMP6300II
7-5 Operating Sequence...............................................................................................45
8. Case Design...............................................................................................................46
8-1 Mounting Position...................................................................................................46
8-1-1 Method of mounting the printer mechanism................................................46
8-1-2 Recommended Screws...............................................................................48
8-1-3 Precautions during mounting the printer body............................................48
8-2 Possible Mounting Angle of the Printer Mechanism................................................48
8-3 Installation of Platen Roller Block...........................................................................49
8-3-1 Pivot center area of platen roller block .......................................................49
8-3-2 Mounting position of the platen roller block ................................................49
8-3-3 Parallel design of the platen roller block.....................................................50
8-3-4 Mounting platen roller block........................................................................50
8-3-5 Precautions during mounting platen roller block.........................................51
9. Recommended Placement of Thermal Paper..........................................................52
10. Designing Platen Roller Block Removal Lever......................................................53
11. Designing Thermal Paper Feed Holder..................................................................54
12. Designing the device to release the jamming of moving .....................................55
12-1 Designing the structure to clear the condition using tools.....................................55
12-1-1 Designing the structure to clear the condition using tools.........................55
12-1-2 Designing the structure to clear the condition by pressing the button with finger............56
12-1-3 Designing the structure to use knob wheel (optional specifications).........58
12-1-4 Designing the structure to clean the jam using hand driver......................59
13. Thermal Paper Exit Design .....................................................................................60
14. Precautions for Outer Case Design........................................................................62
15. Frame Ground..........................................................................................................63
15-1 Frame ground connection method........................................................................63
16. Auto Cutter Error Handling.....................................................................................63
17. Black Mark Position Design (Optional Specifications).........................................64
18. Printer Mechanism Handling Method.....................................................................65
18-1 Installation of thermal paper .................................................................................65
18-2 Removing thermal paper ......................................................................................65
18-3 Procedure to clear thermal paper jam...................................................................65
18-4 Procedure to clear cutter jam................................................................................65
18-5 Precautions when installing/removing thermal paper............................................66
18-6 Cleaning thermal head..........................................................................................66
19. Appearance and Dimensions..................................................................................67
※
Product Approval .....................................................................................................70

Rev. 2.00
- 5 -
SMP6300II
■
Precautions
Please read carefully and fully understand this user’s manual when you design printers or
terminals using the printer mechanism(SMP 6300II).
BIXOLON is not responsible for any damage or loss occurred due to your company’s
configuration parts or usage not included in this user’s manual or improper handling of the
printer mechanism.
The printer mechanism is designed and manufactured for the purpose of installation to
general purpose electronic equipment. Contact sales department of BIXOLON if it is to be
used for products with higher responsibilities involved with injury to body or life and
property loss as additional design or performance verification will be necessary.
The sample circuits included in this document were not verified for intellectual properties.
You must check the intellectual properties related to these circuits sufficiently before using
them.
BIXOLON makes continuous improvements for better functions and quality of the product.
The specifications of the product and contents of this manual are subject to change
without prior notice due to this reason.
Check the latest user’s manual when you purchase the printer mechanism.

Rev. 2.00
- 6 -
SMP6300II
※
Safety Precautions
Take care with the following items when designing products such as terminals using the
printer mechanism, and include precautions required for user’s manual so that users of the
products such as terminals can use the products safely.
a) Precautions when cutting thermal paper
Before cutting thermal paper, check whether thermal paper supply is in stop state.
Paper powder can be generated due to the operation of automatic cutter. As the paper
powder could cause problems with electric circuits, design the system so that paper
powder does not pile up over the control device or power supply device.
b) Precautions with cutter blade
Thermal paper can be easily installed by isolating the platen roller block from the printer
main body with this printer mechanism. The fixed cutter blade will be exposed if the
platen roller block is open. In order to prevent injury to users by touching the blade
while cutter is in operation or replacing the thermal paper, design the structure with a
cover on outer case or attach a warning label to warn the users for safe operation.
c) Precautions with portable blade drive
Set the control so the motor does not operate when platen roller block is open. And
design the paper exit so that users are not injured by touching the cutter while the
cutter is in operation.
d) Precautions for preventing overheating of thermal head
When the thermal device of thermal head remains activated continuously due to a
malfunction, the overheating of the thermal head may cause a fire. Design the system
so that the thermal head does not malfunction even under abnormal conditions.
e) Precautions of temperature rise of thermal head
The temperature of the thermal head and peripheral devices is very high during printing.
Design the system so that users do not get a burn injury by touching the thermal head.
Attach a warning label so that users use the product safely.
When cleaning the thermal head, recommend cleaning work after the thermal head has
cooled down. Leave enough space between the thermal head and outer case when
designing the outer case for faster cooling of the thermal head.

Rev. 2.00
- 7 -
SMP6300II
f) Precaution about temperature rise of the motor
The temperature of step motor and the peripheral device is very high during or right after
printing. Design the outer case so that users do not get a burn injury by touching the
motor. Attach a warning label so that users can use the product safely. Leave enough
space between the motor and outer case when designing the outer case for cooling the
motor.
g) Precautions on sharp edges of the printer mechanism
The printer mechanism has many sharp corners and rough surface on the metal parts.
Design the outer case so that users do not get injured by touching the sharp edges,
and attach a label for the safety of users.
h) Precautions when driving the motor
Hair can be rolled into the platen roller and gears when they are closed.
Design the control so that the printer driver motor does not operate when the outer
case and platen roller block are open. Also, design the outer case so that external
objects do not contact the platen roller and gears, so preventing objects from jamming.
Attach a warning label so that users can use the device safely.

Rev. 2.00
- 8 -
SMP6300II
※
Design Precautions
Take precautions with the following items when designing products such as terminals
using the printer mechanism.
a) The sequence of applying power is as follows.
- Startup: Apply VDD(3.3VDC, 5VDC)and then apply VH(24VDC, Vset)
- Shutdown: Cut off VH(24VDC, Vset) and cut off VDD(3.3VDC, 5VDC)
b) The head power (VH) must have a TVS diode less than 28V
c) To prevent noise from the Logic power supply, put a 0.1µF Cap near the connector.
d) Connect the smallest possible wire resistance (less than 50mΩ) between the power
supply device (Vp and GND) and the printer mechanism (terminal connection). Keep
the distance from the signal wire to reduce electrical interference.
e) Cut Vp voltage when not printing to protect the thermal head from electrolytic corrosion.
Design the product so that the GND signal of the thermal head and frame ground of the
mechanism maintain the same electric potential.
f) Use C-MOS IC for CLK, /LAT, DI, /STB signals of the thermal head.
g) Do not use /STB terminal while turning on or off the power or when the printer is not
printing.
h) Always monitor the platen roller block detection switch and the output of the paper
detection sensor. Never activate the thermal head when platen roller block is open and
there is no paper.Activating the thermal head incorrectly will reduce the life of thermal
head and platen roller or damage them.
i)Always monitor the platen roller block detection switch and the output of the paper
detection sensor. If the platen roller is open without thermal paper, never try to activate
the cutter driver motor.Activating the cutter driver motor incorrectly will reduce the life
of the cutter.
j) Temporary pause time between thermal head activation for the same thermal device
must be longer than 0.1 msec. Precautions must be taken when using 1-split printing or
period of thermal activation time becomes longer. The thermal head might be damaged
if it is activated for a long time without pause.
k)Applying excessive energy to the thermal head may overheat or damage the device.

Rev. 2.00
- 9 -
SMP6300II
l) Noise and vibration during printing may differ depending on the pulse speed of the motor.
Check performance by actually using the device.
m) Paper feeding force may decrease depending on the pulse speed of the motor. Check
performance by actually using the device.
n) In order to prevent degradation of printing quality due to reverse rotation of the paper
drive system, install/remove the platen roller block or feed the thermal paper by more
than 20 steps during initialization after cutting using the cutter.
o) If the printer mechanical device is not used for a long time after cutting the thermal
paper, the paper may jam. In order to prevent this situation, feed the paper up or print
by more than 2 mm after cutting.
p) Do not feed the thermal paper backwards. If the thermal paper falls off from the
thermal head or platen roller, the printer mechanical device may not able to feed paper
anymore or it may be jammed.
q) Do not move partially cut paper forwards or backwards. The paper feeding system may
be damaged.
r) Continuous printing may cause problems to the printer mechanism because of
accumulated heat in the step motor. Therefore, when there is a need to print for longer
than few minutes, stop the printing in the middle and restart printing after the step has
sufficiently cooled down. Check performance by actually using the device.
s) Door pivot system in the outer case that holds platen roller block must be installed by
pressing the center of platen roller block. If only one end of the platen roller block is
pressed and installed, it might cause a problem such as printing defects, paper jam, cut
failure, or damage to the cutter blade. Check performance by actually using the device.
Mark the instruction to install platen roller block by pressing the center.
t) If the main body with the moving cutter blade and platen roller block with the fixed cutter
blade are not positioned correctly, it might cause printing defects, paper jam, or cutting
failure. Therefore special care must be taken to position the outer case correctly when
installing it.
u) Provide sufficient space so that the lever can be removed easily with the fingers when
designing the outer case.
v) Chattering might occur at the mechanical operating contact in auto cutter switch.
Therefore, you must configure hardware chattering protection circuit or apply software
chattering compensation program.

Rev. 2.00
- 10 -
SMP6300II
w) Printing quality cannot be guaranteed if thermal paper other than specified paper is
used, and it may reduce the life of the thermal head.
x) The detection range of the paper detection sensor changes depending on the input and
output resistance value. Refer to the paper sensor detection sample external circuits in
7-1-3. Check performance by actually using the device.
y) When initially turning on the power after product design or closing the platen roller block
after disassembly, make sure to move the paper feed motor forward by 4~8 steps.
Otherwise, the characters on the first line may overlap. Check performance by actually
using the device.

Rev. 2.00
- 11 -
SMP6300II
※
Handling Precautions
Incorrect handling of the printer mechanism will reduce the efficiency and damage the
system. Precaution must be taken with the following.
* When paper other than specified thermal paper is used.
- Printing quality may drop due to low thermal sensitivity.
- The thermal head will be worn out quickly due to rough surface of the thermal paper.
- Printer might be jammed as the thermal layer of the thermal paper might stick to the
thermal head, which may generate noise as well.
- Maintainability of the thermal paper is lower so that color of the printed matter changes.
- Electrolytic corrosion may occur due to poor quality paper.
- Cutter may malfunction due to uneven thickness of thermal paper. (Uneven mechanical
strength and paper density.)
a) When the printer mechanism is left unused for long time
Printing quality may drop due to the deformation of platen roller block. In this case, feed
the thermal paper for a short period to correct the deformation of the roller. Paper
feeding may become difficult when the thermal head touches with the roller without
paper for long time. If this occurs, take out the platen roller and install the paper again
before using it.
b) Do not clean the coating of the cutter (moving cutter blade and fixed cutter blade) with
oil. The performance of the cutter may drop.
* Do not disassemble the platen roller block during printing or cutting. It might cause
damage to the mechanical devices of the printer.
c) The reduction gear may obstruct the installation the platen roller block. In this case,
separate the platen roller and install it again.
d) Never pull out the thermal paper while installing platen roller block. It might damage the
mechanical device of the printer.
e) Do not apply force to the platen roller block during printing or cutting. It might degrade
the printing quality and paper cutting may not work.
f) Wear antistatic clothes while handling the printer mechanism, and touch the metal
pieces before starting work to discharge the static electricity built up on the body in
order to prevent damage to the thermal head by static electricity. Take extreme care
with the thermal device and connection terminal of the thermal head.
g) Do not scratch or tap the thermal head with a sharp or heavy object. It might damage
the thermal head.

Rev. 2.00
- 12 -
SMP6300II
h) When printing at high speed in an environment of low temperature or high humidity,
water drops might form on the printer mechanism due to steam generated by the
thermal paper and the thermal paper might be damaged. Do not apply power until the
water drops are completely dried out.
i)After turning off the power to the printer mechanism, do not connect or separate the
printer mechanism connection terminal (printer connection terminal).
j) Do not apply force to FPC while connecting or separating the connection terminal
(printer connection terminal). FPC might be damaged.
k) Provide warning instructions so that users do not change the thermal paper exit angle or
pull out the thermal paper during printing or cutting. It might cause a problem such as
printing defects, paper jam, or cutting failure.
l) Provide warning instructions to users to carry out printing and cutting after removing the
completely cut thermal paper. If the printing or cutting continues without removing the
cut paper, it might cause a problem such as a paper jam or to the cutting paper
depending on the mounting position.
m) When replacing the thermal paper due to damage to the thermal paper or printing
defects, provide warning instructions to users not to touch the thermal head or sensor.
n) Do not use a paper roll with the glued or folded tip. When using this type of paper,
replace with new paper before the tip of the paper roll appears.
o) Never unscrew the screws holding the corresponding parts of the printer mechanism.
Unscrewing them may degrade the performance of the printer mechanism and the
cutter.
p) The printer mechanism is not waterproof and is susceptible to water drops. Do not let it
touch the water and do not operate with wet hands. It might damage the printer
mechanism or cause a fire.
q) The printer mechanism is susceptible to dust. Do not use the printer mechanism in a
dusty place. It might damage the thermal head or paper drive system.

Rev. 2.00
- 13 -
SMP6300II
■
Characteristics of SMP6300II Printer Mechanism
This printer mechanism has the following characteristics.
* Integrated cutter
- Guillotine-type cutter is included.
* High speed printing
- Printing speed can be up to 250mm/s printing.
* High resolution printing
- Smooth and accurate printing using the high-density printing head of 8 dots/mm.
* Small and economic size
- Printing function and cutting function are combined into a small-sized system.
* No cutter jam
- Cutter jam does not occur due to paper jam or unclosed cover.
* High reliability auto cutter
- Cutting life of more than one million cuts is guaranteed.
* Easy mounting platen roller block
- The structure enables automatic mounting of the fixed cutter blade and the outer case
can be designed easily.
* Low noise
- Printing noise is low due to thermal printing type.

Rev. 2.00
- 14 -
SMP6300II
1. Specifications
Printing type
Thermal Dot Line Printing
Resolution
8dots/mm(W) x 8dots/mm(H)
Number of dots per line
576dots
Printing width
72mm
Printing speed
Max. 250mm/s
Paper feed gap
0.125mm
Paper width
80 0, -1 mm
Paper diameter
Max. 80mm
Head temperature
sensing
Via thermistor
No paper sensing
Via photo interrupter
Platen roller block
sensing
Via mechanical switch
Operating voltage
24VDC±10% (V
H
line: TPH, Step motors)
2.7 to 3.6VDC, 4.75 to 5.25VDC (VDD line: Logic)
Power consumption
Head: 4 A (at 144 dots, 24V)
Motor auto cutter: 0.66A (Max. current)
Motor paper feed: 0.66A (Max. current)
Head Logic: 0.1A
Paper cutting type
Guillotine
Paper cutting method
Full cut and Partial cut
Cutter operating time
Approx. 0.5s/cycle
Cutting period
Max. 30 cuts/min.
Paper feeding load
Max. 100gf
Product life
(at 25oC and rated
energy)
Activation pulse resistance: 100million
Abrasion resistance : 100Km
Auto cutter : 1,000,000 cuts
Impact resistance
Package: Bixolon standard package
Height: 75 cm
Directions: 1 corner, 3 edges and 6 surfaces
Recommended paper
A. TF50KS-E (Paper thickness: 65 µm) of Nippon paper Industries Co., Ltd
B. PD 160R (75 µm) of New Oji Paper Mfg, Co., Ltd.
C. P350 (62 µm) of Kanzaki Specialty Paper, Inc.(USA)
D. Hansol Thermo 65 (65 µm) of Hansol Paper Co., Ltd.(Korea)
Dimension (WxLxH)
100mm x 46.2 (58.6)mm x 22.2mm
Weight
210g
Temperature range
Operating: 0°C to 45°C Storage: -20°C to 60°C (no condensation)
Humidity range
Operating: 10 to 80% RH Storage: 90% RH

Rev. 2.00
- 15 -
SMP6300II
Operating conditions
For temperature
/ humidity
Printer can be operated
Printing quality is guaranteed

Rev. 2.00
- 16 -
SMP6300II
2. Disassembly diagram

Rev. 2.00
- 17 -
SMP6300II
3. Part names
No. Part No. Part name Descriptions Q’ty A/S
1 AF05-00011A Ass’y Frame main
Frame lower+Shaft lever lock+
Lever lock L, Lever lock R,
1 Y
2 AE05-00029D Ass’y TPH(AOI)
TPH+Bracket tph+Fpc
+Photo interrupter+Switch
1 Y
AE05-00036B Ass’y TPH(Rohm)
TPH+Bracket tph+Fpc
+Photo interrupter+Switch
3
KM05-00041B
Frame upper
PC(Lupoy GP-2100)
1
Y
4
KS05-00020A
Spring pressure
SUS304 WPB,Ø0.45
3
Y
5
K105-00020A
K105-00020B
KF04-00090A
Step Motor-PF Ø 15-2단Bipolar 1 Y
6
KM05-00036A
Gear Deceleration A
POM(White)
1
Y
7
KM05-00037A
Gear Deceleration B
POM(White)
1
Y
8
KM04-00660B
Gear Deceleration C
POM(Blue)
1
Y
9
KM05-00046B
Frame Gear
POM
1
Y
10
KC05-00015A
Screw Machine
M1.7*3
1
N
11 KC05-00012A Screw Taptite M1.7*7 1 N
12
KC05-00014A
Screw Machine
M1.7*2
1
N
13
KC05-00023A
Screw Taptite
M1.7*3
4
N
14
KC05-00019A
Screw Tapping
M2*3
2
N
15
6002-001121
Screw Taptite
M2*4
3
N
16
KC05-00021A
Screw Machine
M2*1.5
1
N
17
6001-000009
Screw Taptite
M1.7*2.5
2
N
18 AU05-00007B Ass’y Auto cutter
(한국제, 일본제 복수)
Frame cutter drive+
Cutter drive+Step motor ac+
Gear cutter A,B+Guide cutter drive
+Frame cover ac
1 Y
19 AR05-00022A 플래튼 롤러 블럭
(Ass’y
platen roller block)
(한국제, 일본제 복수)
Platen roller+Bracket cutter
fixing+Bush bearing L,R+
Bracket slide roller
+Cutter fixing+Spring cutter A
1 Y

Rev. 2.00
- 18 -
SMP6300II
4. Connector pin arrangement
4-1 Main FPC cable (50pin)
FPC plating specification (gold and tin plating)
PIN NO
SIGNAL
Description
1
CUT_OUT
Auto cutter Sensor Photo collector
2
CUT_GND
Auto cutter sensor Photo cathode and emitter
3
CUT_2B
Auto cutter motor
4
CUT_1B
Auto cutter motor
5
CUT_2A
Auto cutter motor
6
CUT_1A
Auto cutter motor
7
NC
No connection
8
EARTH
Mechanism Earth
9
EARTH
Mechanism Earth
10
NC
No connection
11
FEED_2B
Feeding motor
12
FEED_1B
Feeding motor
13
FEED_2A
Feeding motor
14
FEED_1A
Feeding motor
15
COVER_SW2
Platen roller detector switch
16
COVER_SW1
Platen roller detector switch
17
Vset
TPH Supply voltage
18
Vset
TPH Supply voltage
19
Vset
TPH Supply voltage
20
Vset
TPH Supply voltage
21
NC
No connection
22
CLK
TPH Clock
23
nLAT
TPH Latch
24
nSTB2
TPH Strobe 2
25
nSTB1
TPH Strobe 1
26
TH
TPH Thermistor
27
GND
TPH Ground
28
GND
TPH Ground
29
GND
TPH Ground
30
GND
TPH Ground
31
GND
TPH Ground
32
GND
TPH Ground
33
GND
TPH Ground
34
GND
TPH Ground
35
GND
TPH Ground
36
GND
TPH Ground
37
GND
TPH Ground
38
VDD
TPH Logic voltage
39
VDD
TPH Logic voltage
40
nSTB4
TPH Strobe 4
41
nSTB3
TPH Strobe 3
42
SI
TPH Data input
43
Vset
TPH Supply voltage
44
Vset
TPH Supply voltage
45
Vset
TPH Supply voltage
46
Vset
TPH Supply voltage
47
Vset
TPH Supply voltage
48
PS_IN
Paper End Sensor Input
49
GND
Paper End Sensor Ground
50
PS_OUT
Paper End Sensor output

Rev. 2.00
- 19 -
SMP6300II
※User recommended connector
- Number of terminals
50 pin with 0.5㎜pitch ZIF Type
- Recommended connector
KYOCERA ELCO : 04 6274 050 000 xxx
MOLEX : 501951-5019
Caution)
Using non-ZIF type connectors could cause shorting failures between the terminals due
to the peeling of FPC plated film. ZIF type connectors must be used.
4-2 FPC aux cable (BMS option)
PIN NO SIGNAL Description
1
BMS_IN
Black Mark sensor Input
2
GND
Black Mark sensor Ground
3
GND
Black Mark sensor Ground
4
BMS_OUT
Black Mark sensor Output
※User recommended connector
- Number of terminals: 4 pins with 1.0 ㎜pitch
- Recommended connector: YEONHO, 10022HS-04

Rev. 2.00
- 20 -
SMP6300II
5. Thermal Printer Head
Thermal head is configured with a thermal device and thermal head drive that drives and
controls the thermal device. Data input from the DI terminal is “High” for printing and “Low”
for not printing. Data from DI terminals are transferred to the shift registers at the rising
edge of the CLK.
After transferring one line of data, the data is stored to the latch register by making the
/LAT signal “Low”. Depending on the stored printing data, the thermal device is activated
by making /STB signal “Low”.
Strobe(/STB) can split print 4 block independently. Split printing can reduce the peak
current.
5-1 Specifications
Printing width 72mm
Total number of dots
576 dots / Line
Dot density 8 dots/mm (Dot Size 0.125 X 0.125)
Dot pitch
0.125mm
Average resistance
R
ave
= 800 Ω ± 3%(AOI)
Rave = 780 Ω ± 3%(ROHM)
5-2 Block Diagram of the Head