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User’s Manual
SMP6200II
Thermal Printer Mechanism
Rev. 1.00
http://www.bixolon.com
SMP6200II
REVISION SHEET
Revision
REV. Date WRT CHK APL Page Description
1.00 14.11.17 M.W.LEE J.S.LEE J.T.KIM
- 2 -
Rev. 1.00
SMP6200II
■
Table of Contents
1. Specifications ............................................................................................................................. 13
2. Disassembly diagram ................................................................................................................ 15
3. Part names .................................................................................................................................. 16
4. Connector pin arrangement ...................................................................................................... 17
4-1 M
AIN
FPC
CABLE
(50-P
IN
) ........................................................................................................ 17
4-2 FPC
AUX CABLE
(BMS
OPTION
) ................................................................................................ 18
5. Thermal Printer Head ................................................................................................................. 19
5-1 S
PECIFICATIONS
....................................................................................................................... 19
5-2 B
LOCK
D
IAGRAM OF THE
H
EAD
................................................................................................. 19
5-3 P
RINTING POSITION OF TRANSFERRED DATA
.............................................................................. 20
5-4 D
IMENSIONS OF THERMAL DEVICE
............................................................................................. 21
5-5 E
LECTRICAL
C
HARACTERISTICS OF THE
T
HERMAL
H
EAD
............................................................ 22
5-6 T
HERMAL
H
EAD
D
RIVE
T
IMING
D
IAGRAM
................................................................................... 23
5-7 M
AXIMUM
C
ONDITION
............................................................................................................... 24
5-8 H
EAD
S
UPPLY
V
OLTAGE
........................................................................................................... 24
5-9 P
EAK CURRENT
........................................................................................................................ 24
5-10 P
ULSE
W
IDTH
C
ONTROL OF THE
H
EAD
.................................................................................... 25
5-10-1 Voltage pulse width ................................................................................................. 25
5-10-2 Calibration of the pulse width when temperature changes ..................................... 25
5-10-3 Example calculation of head operating pulse width ................................................ 26
5-10-4 Thermistor specifications ........................................................................................ 26
5-10-5 Detection of abnormal temperature of thermal head .............................................. 28
6. Step Motor (Paper Feed) ........................................................................................................... 29
6-1 S
PECIFICATIONS
....................................................................................................................... 29
6-2 E
XAMPLE DRIVE CIRCUITS
......................................................................................................... 29
6-3 D
RIVE SEQUENCE
(M
OTOR ROTATES IN COUNTERCLOCKWISE DIRECTION
) .................................. 31
6-4 M
OTOR
T
IMING
D
IAGRAM
.......................................................................................................... 32
6-5 D
RIVE
F
REQUENCY
A
CCELERATION
(A
CCELERATION
C
ONTROL
) ................................................ 32
7. Sensor ......................................................................................................................................... 34
7-1 P
APER
D
ETECTION
S
ENSOR AND
B
LACK
M
ARK
D
ETECTION
S
ENSOR
.......................................... 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 (Optional specifications) .... 36
7-2 P
LATEN
R
OLLER
B
LOCK
D
ETECTION
S
WITCH
............................................................................ 37
7-2-1 Sample external circuits ........................................................................................... 37
7-3 A
UTO
C
UTTER
.......................................................................................................................... 38
7-4 S
TEP
M
OTOR
(A
UTO
C
UTTER
) .................................................................................................. 40
7-4-1 Auto Cutter Drive Circuits ......................................................................................... 40
7-4-2 Auto Cut 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
7-5 O
PERATING
S
EQUENCE
............................................................................................................ 45
8. Case Design ............................................................................................................................... 46
8-1 M
OUNTING
P
OSITION
................................................................................................................ 46
8-1-1 Method of mounting the printer mechanism ............................................................. 46
8-1-2 Recommended Screws ............................................................................................ 48
Rev. 1.00
- 3 -
SMP6200II
8-1-3 Precautions during mounting the printer body .......................................................... 48
8-2 P
OSSIBLE
M
OUNTING
A
NGLE OF THE
P
RINTER
M
ECHANISM
....................................................... 48
8-3 I
NSTALLATION OF
P
LATEN
R
OLLER
B
LOCK
................................................................................. 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 blade .......................................... 55
12-1 D
ESIGNING 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 F
RAME GROUND CONNECTION METHOD
................................................................................... 63
16. Activation Control of Dots of Thermal Head ......................................................................... 63
17. Auto Cutter Error Handling ..................................................................................................... 63
18. Black Mark Position Design (Optional Specifications) ........................................................ 64
19-1 I
NSTALLATION OF THERMAL PAPER
.......................................................................................... 65
19-2 R
EMOVING THERMAL PAPER
.................................................................................................... 65
19-3 P
ROCEDURE TO CLEAR THERMAL PAPER JAM
........................................................................... 65
19-4 P
ROCEDURE TO CLEAR CUTTER JAM
........................................................................................ 65
19-5 P
RECAUTIONS WHEN INSTALLING
/
REMOVING THERMAL PAPER
.................................................. 66
19-6 C
LEANING THERMAL HEAD
...................................................................................................... 66
20. Appearance and Dimensions .................................................................................................. 67
※
Product Approval Sheet ........................................................................................................... 70
Rev. 1.00
- 4 -
SMP6200II
■
Precautions
Please read carefully and fully understand this user’s manual when you design printers or terminals using the printer mechanism (SMP 6200II).
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. 1.00
- 5 -
SMP6200II
※
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. 1.00
- 6 -
SMP6200II
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. 1.00
- 7 -
SMP6200II
※
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 and then apply Vp
- Shutdown: Cut off Vp and cut off Vdd b) Surge voltage between Vp and GND must be lower than 10 V. c) Connect 0.1 uF capacitor between Vdd and GND near to the connector to prevent noise. d) Connect the smallest possible wire resistance (less than 50m Ω ) 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. 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.
Rev. 1.00
- 8 -
SMP6200II
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. (Max 10 ms) 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 you turn on the power for the first time after installing the product or when you separate the platen roller block and close it, be sure to move the paper feed motor forward 4~8 steps. Otherwise, the first line will overlap when printing. Check performance while actually using the device.
Rev. 1.00
- 9 -
SMP6200II
※
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. 1.00
- 10 -
SMP6200II
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. 1.00
- 11 -
SMP6200II
■
Characteristics of SMP6200II 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 150mm/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. 1.00
- 12 -
SMP6200II
1. Specifications
Printing type Thermal Dot Line Printing
Resolution 8dots/mm(W) x 8dots/mm(H)
Number of dots per line 432dots
Printing width 54mm
Max. 150mm/s Printing speed
Paper feed gap
Paper width
0.125mm
58 0, -1 mm
Max. 80mm Paper diameter
Head temperature sensing
No paper sensing
Platen roller block sensing
Via thermistor
Via photo interrupter
Via mechanical switch
Operating voltage
Power consumption
24 DCV±10% (Vp line: TPH, Step motors)
5 DCV±5% (Vdd line: Logic)
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 25 o C and rated energy)
Activation pulse resistance: 100million
Abrasion resistance: 100Km
Auto cutter: 1,000,000 cuts
Impact resistance
Recommended paper
Package: Bixolon standard package
Height: 75 cm
Directions: 1 corner, 3 edges and 6 surfaces
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)
Weight
Temperature range
Humidity range
78.8mm x 46.2 (58.6)mm x 22mm
168g
Operating: 0°C to 45°C Storage: -20°C to 60°C (no condensation)
Operating : 10 to 80% RH Storage : 90% RH
Rev. 1.00
- 13 -
SMP6200II
Operating conditions
For temperature
/ humidity
Printing quality is guaranteed
Printer can be operated
Rev. 1.00
- 14 -
2. Disassembly diagram
SMP6200II
Rev. 1.00
- 15 -
SMP6200II
3. Part names
No. Part No. Part name Descriptions
1 AF05-00009A
2 AF05-00028A
3 KF05-00048A
Ass’y Frame main
Frame main+Shaft lever lock+
Lever lock L, Lever lock R,
TPH+Bracket tph+Tapedouble face
FPC+Photo interrupter+Switch
+Jump wire+R Chip
PC(Lupoy GP-2100) 4 KM05-00025A
5 KS05-00018A Spring
6 K105-00020A Step motor pf Φ 15-2
단
Bipolar
Q’ty A/S
1 Y
1 Y
1 Y
1 Y
1 Y
10 KD05-00046A
11 KC05-00015A
12 KC05-00012A
Frame gear
Screw
13 KC05-00014A Screw
14 KC05-00023A
15 6001-001380 Screw
POM
POM
POM
ZnDc
M1.7*3
M1.7*7
M1.7*2
M1.7*3
M2*2.5
1
1
1
1
Y
Y
Y
Y
1 N
1 N
1 N
4 N
2 N
16 6002-001121
17 KC05-00021A Screw
18 6001-000009
19 AU05-00005B Ass’y cutter
20 AR05-00020A Ass’y Platen roller block
M2*4
M2*1.5
M1.7*1.5
SMP6200II
Platen roller+Gear roller+
Bracket cutter fixing+Bracket slide roller
2 N
1 N
2 N
1 Y
1 Y
Rev. 1.00
- 16 -
SMP6200II
4. Connector pin arrangement
4-1 Main FPC cable (50-Pin)
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
5 CUT_2A
6 CUT_1A
7 NC
Auto cutter motor
Auto cutter motor
Auto cutter motor connection
8 EARTH
9 EARTH
10 NC
11 FEED_2B
12 FEED_1B
44
45
46
47
48
49
50
39
40
41
42
43
15
16
17
18
19
20
COVER_SW2
COVER_SW1
VH
VH
VH
VH
21 NC
22 CLK
23 nLAT
24 nSTB1
25 TH
26 GND1
27 GND
28 GND
29 GND
30 GND
31 GND
32 GND
33 GND
34 GND
35 GND
36 GND
37 GND
38 VDD
VDD nSTB3 nSTB2
SI
VH
VH
VH
VH
VH
PS_IN
GND
PS_OUT
Platen roller detector switch
Platen roller detector switch
TPH Supply voltage
TPH Supply voltage
TPH Supply voltage
TPH Supply voltage
TPH Strobe 1
Thermistor
TPH Logic voltage
TPH Strobe 3
TPH Strobe 2
TPH Data input
TPH Supply voltage
TPH Supply voltage
TPH Supply voltage
TPH Supply voltage
TPH Supply voltage
Paper End Sensor Input
Paper End Sensor Ground
Paper End Sensor output
Rev. 1.00
- 17 -
SMP6200II
※
User recommended connector
- Number of terminals
50 pin with 0.5
㎜
pitch
- Recommended connector
KYOCERA ELCO: 04 6274 050 000 xxx
MOLEX: 501951-5019
Caution)
Using Non-ZIF-type connector could cause shorting failures between the t erminals due to the peeling of FPC plated film. ZIF-type connectors must be used.
4-2 FPC aux cable (BMS option)
PIN NO SIGNAL
1 BMS_IN
Description
Black Mark sensor input
2
3
GND
GND
Black Mark sensor Ground
Black Mark sensor Ground
4 BMS_OUT
※
User recommended connector
- Number of terminals: 4 pins with 1.0
㎜
pitch
Black Mark sensor Output
- Recommended connector: YEONHO, 10022HS-04
Rev. 1.00
- 18 -
SMP6200II
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”.
Split printing with three block and 144 dots each can be supported. Split printing can reduce the peak current.
5-1 Specifications
Printing width
Total number of dots
Dot density
Dot pitch
Average resistance
5-2 Block Diagram of the Head
54mm
432 dots / Line
8 dots/mm (Dot Size 0.125 X 0.125)
0.125mm
R ave
= 800 Ω ± 3%
/STB: Strobe(Low active)
/LAT: Latch(Low active)
CLK: Clock
DI: Data in
TM: Thermistor
Rev. 1.00
- 19 -
SMP6200II
※
Relationship between /STB terminal and thermal device activation
Block No.
1
/STB number Heating element number
/STB1 1 ~ 144
Dots / STB
144
2 /STB2 145 ~ 288 144
3 /STB3 289 ~ 432 144
5-3 Printing position of transferred data
(SMP6200II)
Rev. 1.00
- 20 -
5-4 Dimensions of thermal device
SMP6200II
Rev. 1.00
- 21 -
5-5 Electrical Characteristics of the Thermal Head
SMP6200II
Ta = 25
℃
±10°C
Item
Supply voltage
Logic voltage
Logic current
Input voltage
Data input current
(DI)
Strobe input current (/STB)
Clock input current
(CLK)
Latch input current
(/LAT)
Clock frequency
Clock pulse width
Data set up time
Data hold time
LAT width
LAT set up time
LAT hold time
STB set up time
Symbol
L I
L I
H I
IL
IH
IL
DI
H I
IH
STB
STB
CLK
MIN. TYP.
MAX. Umix
V
H
- V
V
DD
4.75 V
I
DD
- mA
CLK
/2
H V
H V
IH
IL
0.8 - V
DD
V /STB,DI,
0 0.2 V
/LAT,CLK
H I
IH
DI - - 0.5
㎂
-
-
-
-
-
-
-
-
-0.5
0.5
-30
1.5
㎂
㎂
㎂
㎂
V
비고
IH
=5V
V
IL
=OV
L I
IL
CLK - - -1.5
H I
IH
LAT
L I
IL
LAT
-
- fCLK tw CLK tsetup DI thold DI
-
120
50
50 tw LAT tsetup LAT
100
200 thold LTA 50 tsetup STB 300
-
-
-
-
-
-
-
-
-
-
Driver output delay time
1.5
-1.5
-
-
-
-
4
-
-
-
㎂
㎂
㎂
MHz ns ns ns ns ns ns ns
See 3-2-5
Rev. 1.00
- 22 -
5-6 Thermal Head Drive Timing Diagram
SMP6200II
※
V
H
can fluctuate in big amplitude if the sufficient driver output delay time cannot be guaranteed. Design the circuit so that V
H does not exceed the peak voltage (Vp).
Rev. 1.00
- 23 -
SMP6200II
5-7 Maximum Condition
(Ambient temperature of the printer head: 25
℃
)
Items Maximum condition Condition
Supply Voltage (V
H
) 26.4V
V
P
<28.0V
V
P
: Peak of V
H
Supply Energy (E
O
)
0.21 mj/dot
0.28 mj/dot
S.L.T. = 0.83ms
S.L.T. = 1.25ms
Substrate Temperature (Tsub)
Logic Supply Voltage (V
DD
)
65
℃
7V
Thermistor Temperature
Include Peak Voltage
Logic Input Voltage (Vin)
5-8 Head Supply Voltage
Input voltage on TPH side is as follows.
Item
Head drive voltage
Head logic voltage
-0.5 ~ VDD+0.5
V
V
H
DD
Voltage range
24V ± 10%
5.0V ± 5%
5-9 Peak current
The peak current during the operation of the head can be calculated using the following equation in most cases. Take extreme care with the voltage drop in the circuit.
N х
V
H
I
P
= ------------------
Rave
Rave: Average resistance (800
Ω
)
I
P
: Peak current (A)
N: Number of dots driven simultaneously
V
H
: Head drive voltage
Rev. 1.00
- 24 -
SMP6200II
5-10 Pulse Width Control of the Head
5-10-1 Voltage pulse width
Control the width of the pulse depending on the operating voltage to maintain stable printing quality. The head pulse width can be obtained using the following equation.
(R
COM х N + Rave + R
IC
) 2
T o
= E o х ---------------------------------------------
V
H
2 х Rave
T
O
: Pulse width per period (ms)
E
O
: Nominal energy (0.17mJ)
R
COM
: Common resistance (0.05
Ω
)
R
IC
: Driver saturation resistance (50
Ω
)
5-10-2 Calibration of the pulse width when temperature changes
Detect temperature changes by reading the thermistor resistor values built into the thermal head. It is advisable to calibrate the pulse width to adjust the energy with the thermal head for the temperature changes of the thermal head and installation environment temperature.
Stop printing if the detected temperature exceeds 60
℃
. Pulse width per period is calculated using the following equation.
(25-T
X
) х C
T on
= T
25 х { 1+ -------------------}
230
T on
: Pulse width at operating temperature (Tx)
T
25
: Pulse width at the operating temperature of 25
℃
T
X
: Operating temperature
C: Coefficient of thermal paper
(Set C=1 when using Hansol 65 GSM)
Rev. 1.00
- 25 -
※
Operating temperature and head pulse width
Usage Temperature and Head Pulse width
Pluse width(µs)
325
300
275
250
225
5 15 25
Temperature(°C)
35
SMP6200II
45
5-10-3 Example calculation of head operating pulse width
Thermistor temperature (
℃
Head pulse width (usec)
) 5 15 25 35 45
300 284 270 258 250
※
Control the thermal head by adjusting the active pulse width to increase the printing density as shown in the above example. Voltage higher than necessary and pulse width higher than specified can significantly shorten the life of thermal head.
5-10-4 Thermistor specifications
- Electrical Specifications of Thermistor
▷ Rating
1) Operating temperature: -20 ~ +80 ℃
2) Time constant: Max. 30 sec (in the air)
▷ Electrical Requirements
1) Resistance R
25
: 30 k Ω ± 5% (at 25 ℃ )
2) B value: 3950 K ± 2%
Rev. 1.00
- 26 -
SMP6200II
R
X
=R
25
×EXP{B×(1/T
X
-1/T
25
)}
(T: Absolute Temperature)
200
180
160
140
120
100
80
60
40
20
0
-20 -10 0 10 20 30 40
TEMPERATURE ℃
50 60 70 80
Temperature(
℃)
R std (k Ω ) Temperature(
℃)
R std (k Ω )
-20 316.97
-15 234.22
-10 175.07
45
50
55
-5 132.29 60
13.03
10.75
8.92
7.45
0 100.99 65 6.25
5 77.85 70 5.27
10 60.57 75
15 47.53 80
4.47
3.80
20 37.61 85
25 30.00 90
30 24.11 95
3.25
2.79
2.41
35 19.51 100 2.09
40 15.89 105 1.81
Rev. 1.00
- 27 -
SMP6200II
※
Recommended Thermistor circuit
V
DD
10㏀ 10㏀/F
10㏀/F
TH
TH
25
H_TMP
LM393
-
+
TPH Thermistor
3㏀/F
100㎋ 100㎋
GND 26
Ground
User side
Printer side
5-10-5 Detection of abnormal temperature of thermal head
In order to protect the thermal head and to guarantee the safety of the user, abnormal temperature of the thermal head must be detected from both hardware and software sides.
▷
Detection of abnormal temperature with software
When the software detects a temperature higher than 60 C from the thermistor of the thermal head, the software must stop the operation of the heating element, and reactivate the heating element when the temperature drops below 50
°
C.
Continuous operation of thermal head at a temperature above 60°C may reduce the life of thermal head significantly.
▷
Detection of abnormal temperature through hardware
The thermal head might overheat if the software to detect abnormal temperature does not operate properly if there are problems in the control system. Overheated thermal head may result in damage to the thermal head and injury to the user.
Hardware circuits to detect abnormal temperature must be used along with the software to detect abnormal temperature to guarantee the safety of the user. (The damage to the thermal head may not be avoided even when the hardware detects an abnormal temperature if there is a problem in the control system.)
Design the hardware to detect the following abnormal conditions using comparators or other similar sensors.
1) Overheating of the thermal head (Around 90
°
C or higher)
2) Improper connection of thermistor (Thermistor might be shorted or opened.)
Cut the supply voltage to the thermal head if condition (1) or (2) is detected.
Activate the error mode for proper measure before reusing the system.
Rev. 1.00
- 28 -
6. Step Motor (Paper Feed)
6-1 Specifications
Item
Type
Drive method
Excitation type
Terminal voltage
Wiring resistance
Motor control current
Motor drive pulse
6-2 Example drive circuits
- 3.3V Drive circuit
Specifications
PM type Step Motor
Bi-polar chopper
2-2 Phase
Vp: DC 21.6V ~ DC 26.4V
26 Ω /Phase ±10%
0.33A/Phase
1225 pps Max.
SMP6200II
Rev. 1.00
- 29 -
5V Drive circuit
SMP6200II
Limit the maximum motor drive time in order to prevent overheating of the motor.
When the motor runs continuously, the drive ratio should not exceed 30%.
- Maximum drive time: 100 seconds (1225 pps)
- Pause time for maximum drive: 233 seconds
- Drive ratio: 30%
Drive time
Drive ratio (%) = ---------------------------------- x 100
Drive time + Pause time
The temperature of the motor may rise differently depending on operating conditions.
Maintain the temperature of the external case of the motor below 85
℃
. Check performance while actually using the device.
Rev. 1.00
- 30 -
SMP6200II
6-3 Drive sequence (Motor rotates in counterclockwise direction)
Motor drive input pulse Step 1 Step 2 Step 3 Step 4
Motor drive output pulse Step 1 Step 2 Step 3 Step 4
※
H: High / L: Low
※
Precaution in designing motor control circuit and software
In order to stop the motor, apply excitation for one step period using the same phase as the last phase of the printing step.
Rev. 1.00
- 31 -
6-4 Motor Timing Diagram
SMP6200II
6-5 Drive Frequency Acceleration (Acceleration Control)
Acceleration control is required to maintain driving power when driving the motor.
Drive the motor according to the acceleration step in the table shown below.
The procedure for accelerating the motor is as follows.
- Produce the step signal start time
- Produce the first step during the first step acceleration time
- Produce the second step during the second step acceleration time
- Produce the nth step during the nth step acceleration time
- After the motor accelerates to reach the drive speed, drive the motor with constant speed
Printing can be done during acceleration.
Maximum printing speed depends on the drive method of thermal head. Set the acceleration step as follows.
Rev. 1.00
- 32 -
SMP6200II
※
Acceleration step
Step Speed (pps) Step time (usec) Step
12
13
14
15
16
17
8
9
10
11
3
4
5
1
2
6
7
18
19
20
21
22
23
30
31
32
24
25
26
27
28
29
44
45
46
47
48
49
40
41
42
43
33
34
35
36
37
38
39
50
51
52
53
54
55
62
63
64
56
57
58
59
60
61
591
612
631
650
667
684
413
438
459
482
504
526
548
570
193
211
235
259
287
322
360
391
100
104
110
116
123
131
140
150
162
176
1692
1633
1585
1539
1500
1462
2419
2284
2179
2074
1984
1900
1825
1754
5194
4728
4262
3855
3482
3110
2778
2560
10010
9633
9132
8632
8136
7642
7148
6656
6167
5681
909
901
893
888
883
878
1011
993
980
968
955
942
929
919
Step time
(usec)
1421
1395
1370
1339
1306
1275
1244
1216
1190
1167
1147
1121
1101
1088
1073
1060
1042
1027
1076
1088
1100
1110
1119
1126
960
974
989
1007
1020
1033
1047
1061
908
919
932
944
840
857
872
892
Speed
(pps)
667
684
704
717
730
747
766
784
804
822
Step
87
88
89
90
76
77
78
79
80
81
72
73
74
75
82
83
65
66
67
68
69
70
71
84
85
86
Step time
(usec)
876
873
870
868
865
863
860
858
855
852
840
837
835
832
850
847
845
842
820
818
817
816
829
826
824
822
1177
1180
1184
1187
1191
1195
1198
1202
Speed
(pps)
1142
1146
1149
1152
1156
1159
1163
1166
1170
1173
1206
1211
1214
1217
1220
1222
1224
1225
Rev. 1.00
- 33 -
SMP6200II
7. Sensor
7-1 Paper Detection Sensor and Black Mark Detection Sensor
7-1-1 Absolute maximum rating
(Ta = 25
℃
)
Parameter Symbol Rating Unit
Input
Forward current
Reverse current
IF
VR
50
5
Input
Output
Power consumption
Collector-Emitter voltage
Emitter-Collector Voltage
Collector current
Collector power consumption
PD
VCEO
VECO
Ic
Pc
75
30
3
20
50
Output
Storage temperature
7-1-2 Electrical Characteristics
TSTG -30~+100
℃
Parameter
Input
Forward current
Reverse current
Collector current
Output
Leakage current
Falling/Rising time
Symbol MIN.
TYP.
VF -- -- 1.3 V
IC 180 --
ICECO -- -- tf/tr -- 25/30
MAX.
IR 10
440
0.2
--
Unit
㎂
㎂
㎂
㎲
(Ta = 25 o
C)
Conditions
IF=10 ㎃
VR =5V
VCE=5V
IF=10 d=1
㎜
VCE=5V
IF=10
㎃
Vcc=2V
Ic=0.1
㎃
RL=1
㏀
Rev. 1.00
- 34 -
7-1-3 Paper Detection Sensor Sample External Circuits
- 3.3V Drive Circuits
SMP6200II
- 5V
구동회로
Paper detection
Paper is detected
Paper is not detected
Signal level of paper detection sensor (PS_OUT)
Low
High
※
As the detection voltage difference changes depending on the reference voltage of
LM393 and input/output resistance of the sensor for paper detection, check performance by actually using the device.
Rev. 1.00
- 35 -
SMP6200II
7-1-4 Black Mark Detection Sensor Sample External Circuits (Optional specifications)
- 3.3V Drive circuits
- 5V
구동회로
Black mark detection black mark is detected black mark is not detected
Signal level of black mark detection sensor (BMS_OUT)
High
Low
※
As the detection voltage for black mark identification depends on the density, check performance by actually using the device.
If there is anything wrong in performance, adjust the density of black mark or resistance value of *1) to set the product to optimum state.
Rev. 1.00
- 36 -
SMP6200II
7-2 Platen Roller Block Detection Switch
7-2-1 Sample external circuits
- 3.3V Drive circuits
Platen Roller Block
Platen Roller Block is detected
Platen Roller Block is not detected
- 5V Drive circuits
Cover switch signal level
Low
High
Platen Roller Block
Signal level of Platen Roller Block detection switch (SW1)
Platen Roller Block is detected
Platen Roller Block is not detected
High
Low
※
In case of Cover switch for detecting Platen Roller Block, chattering can be caused by mechanism operating condition. So, chattering protection circuit in hardware or chattering protection program in software is compulsory and the performance should be tested by actual device first.
Rev. 1.00
- 37 -
SMP6200II
7-3 Auto Cutter
To cut the paper automatically after printing
- Cutting paper: Single layer thermal paper of general paper (Thickness: 50~100
㎛
)
- Rated voltage
Motor: DC 24V±5
％
Current consumption: Max. 0.66A
Switch: DC 5V±5
％
(Current consumption: MAX 5
㎃
)
- Paper cutting guaranteed life
Paper thickness of 65
㎛
: Cut 1,000,000 times
Guaranteed life depends on the thickness of the paper
- Cutting period: less than 30 cycle/min
- Cutting speed: maximum 0.5sec / 1 Cycle
- Environment condition
Operation temperature and humidity: 0 ~ 45 , 10~80%RH (non -condensing)
Storage temperature and humidity: -20 ~ 60 , 90% RH
- Paper cutting condition
Thermal paper cutting mode of the auto cutter can be selected to Full Cut or Partial
Cut by changing the number of drive steps of cutter drive motor.
단위
: mm
Rev. 1.00
Full Cut Partial Cut
- 38 -
SMP6200II
- Full cut:
Forward full cut: 121 steps after sensor OFF
Backward full cut: 25 steps after sensor ON
Forward full cut
121 step
OFF
CUT_SENSOR
ON
Backward full cut
Hold time(17ms) 25 step
Full cut
- Partial cut:
Forward partial cut: 80 steps after sensor OFF
Backward partial cut: 25 steps after sensor ON
Forward partial cut
80 step
OFF
CUT_SENSOR
ON
Backward partial cut
Hold time(17ms) 25 step
Partial cut
Rev. 1.00
- 39 -
7-4 Step Motor (Auto Cutter)
Type
Drive method
Excitation method
Motor drive voltage
Wiring resistance
Motor control current
Motor drive pulse
7-4-1 Auto Cutter Drive Circuits
- 3.3V Drive Circuits
PM type stepping motor
Bi-polar chopper
2-2 Phase
Vp: 21.6V~26.4V
30 Ohm/Phase +-10%
0.33A/Phase
700pps Max.
SMP6200II
Rev. 1.00
- 40 -
SMP6200II
- 5V Drive Circuits
24V DC
5±0.25VDC
100㎋x2 10㏀x2
12㏀
+
100㎋
100㎌/35V
100㎋
PH1
PH2
I01/I02
I11/I12
1㏀
1㏀
1㏀
1㏀
10㎋x4
56㏀
470㎊
56㏀
470㎊
8
LOGIC
11
PHASE
1
LOAD
24
OUT
1 A
17
3
PHASE
2
OUT
1 B
14
1
13
2
12
9
5
I
02
I
01
OUT
2 A
20
OUT
2 B
23
I
12
I
11
RC
1
RC
2
A2919SLB
SENSE
1
15
E
SENSE
E
2
1
2
16
22
21
10
4
V
R E F1
V
R E F2
6
18
7
GROUND
GROUND
GROUND GROUND
19
RB060L-40
CUT_2A
CUT_2B
RB060L-40
CUT_1A
RB060L-40
RB060L-40
CUT_1B
1㏀
1㏀
1.5Ω/1W 4.7㎋
1.5Ω/1W
4.7㎋
7-4-2 Auto Cut Sensor(Home Sensor)
Absolute maximum rating
Input
(LED)
Output
(Photo-TR)
Parameter
Forward current
Reverse current
Power consumption
Collector-Emitter voltage
Emitter-Collector Voltage
Collector current
Collector power onsumption
Symbol Rating
(Ta = 25 ℃ )
Unit
I
F
50 ㎃
V
R
5 V
P
D
80 ㎽
V
CEO
30 V
V
ECO
4.5 V
Ic 30
㎃
Pc 80 ㎽
Tstg -40~+85 ℃
Rev. 1.00
Storage temperature
- 41 -
SMP6200II
-
Electrical Characteristics
(Ta = 25
℃
)
Input
Parameter Symbol MIN.
TYP. MAX. Unit Conditions
Forward current
Reverse current
Collector current
V
F
-- 1.8 2.3 V
I
F
=50 ㎃
I
I
R
10
㎂
C
0.1 -- 5
㎃
V
R
=5V
V
CE
=5V
I
F
=5
㎃
Leakage current I
CEO
-- -- 0.1
㎂
V
CE
=10V
Output
Collector-emitter
Saturation Voltage
V
CE(sat)
-- -- 0.4 V
Falling/Rising time tf/tr -- 30 150
㎲
I
F
=20
㎃
Ic=0.1
㎃
Vcc=5V
Ic=0.1
㎃
R
L
=1
㏀
- Sensor Drive circuits
Caution)
Chattering may occur due to mechanically operating contact in auto cutter switch, and you must configure chattering prevention circuits in hardware and software compensation program to prevent chattering.
Chattering prevention compensation program is applied by software in this example
Rev. 1.00
- 42 -
SMP6200II
7-4-3 Auto Cutter Flow Chart
Cutter Execution Command
Cutter_ Sensor = H
Yes
Forward 1 Step,
Step_ Counter++
If Step_ Counter > 50, Cutter Error
Cutter_ Switch = L
*1)
Yes
Forward X Steps
Partial Cut X = 80
Full Cut X = 121
17 msec Stop
Backward 1 Step,
Step_Counter++
No
No
`
Backward 1 Step,
Cutter_
Yes
Sensor
Yes
Step_ Counter++
= H *1)
Backward 25 Steps
Step_ Counter <146
No
No
Yes
No
Cutter_
Sensor
= H *1)
Step_ Counter <146
Yes
Backward 25 Steps
Stop and Cutter Stand-by
*1)
Auto Cutter sensor can cause chattering by circuit operating characteristic.
Chattering protection circuit (hardware) or program (software) is compulsory.
No
Cutter Error
Rev. 1.00
- 43 -
SMP6200II
7-4-4 Acceleration Step
Step Speed(pps)
1 237
2 252
3 269
4 289
5 313
6 340
7 372
8 411
9 446
10 488
11 521
12 558
13 579
14 601
15 625
16 640
17 657
18 679
19 685
20 691
21 698
22 700
Step time (usec)
4224
3968
3712
3456
3200
2944
2688
2432
2240
2048
1920
1792
1728
1664
1600
1562
1523
1472
1459
1446
1434
1428
Rev. 1.00
- 44 -
7-4-5 Auto Cutter Timing Diagram
Feeding Motor
Feeding Feeding stop Feeding
SMP6200II
Feeding stop
PH1
PH2
I01/I02
I11/I12
CUT_SENSOR
Partial cut
Start step
7-5 Operating Sequence
stop start
1 step first dot line
2 step secon d dot line
Pause standby
Stop step Start step
Full cut
Stop step
FEED_1A
FEED_2A
FEED_1B
FEED_2B
CLK
DAT nLAT nSTB1 nSTB2 nSTB3
※
One strobe in case of thermal printer head consists of 144 dots, and adjust automatically to 2-split or 3-split depending on the number of dots if you want to maintain the constant maximum current consumption.
Rev. 1.00
- 45 -
SMP6200II
8. Case Design
8-1 Mounting Position
8-1-1 Method of mounting the printer mechanism
The following picture shows the dimensions required to set the position and mount the printer mechanism.
Fig
8-1
Position holes and boss dimension for mounting the mechanism
Rev. 1.00
- 46 -
SMP6200II
Rev. 1.00
Fig 8-2 Dimension related to mounting
- 47 -
SMP6200II
8-1-2 Recommended Screws
- JIS B1111 M2.6 Cross Fluted Pan Head Machine Screw
8-1-3 Precautions during mounting the printer body
- Care must be taken not to make excessive impact, deformation, or twist while mounting the printer. Otherwise, it might cause degradation of printing quality, paper tilting, paper jam, or printing noise.
- Mount the printer on a flat surface and set the printer so that it does not move.
- Care must be taken to avoid damage in FPC such as folding or denting while mounting the printer main body.
8-2 Possible Mounting Angle of the Printer Mechanism
The printer mechanism can be mounted within a 120 range as shown in the following picture.Check performance by actually mounting the device.
Rev. 1.00
Fig 8-3 Possible Mounting Angle of the Mechanism
- 48 -
SMP6200II
8-3 Installation of Platen Roller Block
8-3-1 Pivot center area of platen roller block
When installing or removing the platen roller block, the pivot center area of the pivot system of the platen roller block of the outer case and the position of the platen roller block must be within the shaded area in Fig 8-4.
8-3-2 Mounting position of the platen roller block
The platen roller block can be mounted in the area between min 50 mm and max 200 mm from the outer case, and the installation area depends on the distance
Rev. 1.00
Fig 8-4 Pivot Center Area of Platen Roller Block
- 49 -
SMP6200II
8-3-3 Parallel design of the platen roller block
When the platen roller block is mounted on the printer mechanism, two blocks must be aligned to be parallel. Otherwise it might cause cutting failure and reduce life of cutter.
Check performance after installation.
※
The degree of parallel alignment must be within -1
°
~ +1
°
.
8-3-4 Mounting platen roller block
Fig 8-5 dimension drawing shows the position and usage of holes to mount the platen roller block on the pivot system of the outer case.
The dimensions of 14.6 mm and 10.1 mm in the picture that determine the mounting position of the platen roller block are important numbers that define the mounting performance of platen roller block and cutting status, and these dimensions must be controlled exactly as shown in the picture when designing the outer case. Incorrect dimensions may cause serious problems such as incomplete cutting or partial cutting
Fig 8-5 Dimensions related to the mounting of the platen roller block
- Holes at ‘a 2’ positions are for setting the position of the platen roller block, design the boss for these two holes. The size and height of the boss shall be within Φ 2, and1.2mm respectively.
- Holes at ‘b 3’ positions are for fixing the platen roller block using screws.
※
Recommended screws specifications: M2.6 x 4 Tapping Screws
Rev. 1.00
- 50 -
SMP6200II
Fig 8-6 Dimensions of mechanism related to the mounting of the platen roller block
* The distance from the head heating line to cutting line is approximately 7.5mm.
8-3-5 Precautions during mounting platen roller block
-
The outer case that the platen roller block is mounted on must be designed to have sufficient strength to avoid impact, twist, deformation by external force, or moving, and the pivot axis for mounting the outer case must be designed to have no slack in front and back or left and right direction. Otherwise it may cause problems such as paper cutting failure, paper jam, or degradation of printing quality due to unstable closing of the outer case. Conduct sufficient verification by actually using the device.
- Design the secure door pivot system as the force is applied to the outer case while installing or removing the platen roller block. Use shaft materials for the pivot axis of the door pivot system, and the platen roller block must be mounted in a stable fashion.
- If the printer mechanism and the door pivot system are not installed correctly, the platen roller block may not be installed correctly, or it may case problems such as printing failure, cutting failure, rough cutting surface, or shorten the life of the cutter.
- When installing new thermal paper, install it while pressing the center of the outer case of the door pivot system. Installing by pressing just one side may cause problems in installing the platen roller block, which may result in printing failure or cutting failure.
Guide the users so that they always press the center of the outer case to install new paper.
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9. Recommended Placement of Thermal Paper
Design the path of the paper in printer mechanism as shown in Fig 9-1
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Fig 9-1 Paper Path
※
The distance between the paper detection sensor and head heating line is approximately 8.5mm.
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10. Designing Platen Roller Block Removal Lever
The following Fig 10-1 shows the operating area position of the platen roller block removal lever.
Fig 10-1 Dimensions related to the operation of the platen roller block removal lever
Take precautions with the following while designing lever or button for removing the platen roller block.
- Design the operating area of the lever so that the platen roller block removal lever position is pressed by 15
°
or 3.8 mm.
- Install the stopper in the outer case to prevent deformation of the printer mechanism when the removal lever is pressed with excessive force.
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11. Designing Thermal Paper Feed Holder
- Design the paper feed hold so that the feeding load of the paper becomes lower than
0.98N (100gf). Design additional devices to meet the requirements of paper load. Feed load bigger than 0.98N may cause a printing defect or paper feed failure. Conduct sufficient verification by actually using the device.
- Follow the following recommendations when designing the position of the paper holder.
When roll paper is used, design the center axis of the roll paper to be parallel with the printer mechanism so that the paper is not shifted to the side axis during printing.
Conduct sufficient verification by actually using the device.
- Refer to Fig. 11-1 for designing the width of the paper guide device.
Fig 11-1 Dimension of width and position of the paper guide device
※
If the width of the paper guide device is designed to be narrower than required, it may cause problems in paper feeding.
- When back feeding is necessary, conduct sufficient verification that it does not cause paper jamming during printing and determine the amount of back feeding.
※
Try to avoid using back feeding as it is susceptible to paper jam.
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12. Designing the device to release the jamming of moving blade
When the power is off while the moving blade is in a forward position or when moving blade is used manually, the moving blade may be jammed with the fixed blade causing problems in releasing the platen roller block.
- In order to release the condition when the system stops while the moving blade is in a forward position, turn off the terminal, and turn it on again to release the condition.
Conduct sufficient verification by actually using the device.
- If the power cycling does not clear the condition, then select and design one of the four methods to clear the cutter jam condition.
12-1 Designing the structure to clear the condition using tools
12-1-1 Designing the structure to clear the condition using tools
When designing the structure to release the cutter jam using thin and long tools such as a screwdriver or pen to push the button, refer to the following.
※
The structure of the SMP6200 printer mechanism is designed to avoid cutter jam, and designing the device to remove the cutter jam using the tool is recommended.
Fig 12-1 Example illustration of designing the method to clean cutter jam using tools
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Hole A
Recommended dimension of holes in outer case
- Ball-pen & Hand driver: Ø 9
- Hand driver: Ø5
Fig 12-2 Recommended size of holes in outer case
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Fig 12-3 Dimensions for design related to clearing the jam using tools
- Make a hole in the outer case wall as shown in Fig 12-2 so that users can press the button with long and thin tools through the hole.
- Cutter jam will be cleared by pressing the button 3~5 times by inserting a long and thin tool such as a screwdriver or pen through the hole. When the cutter jam is cleared, pressing the button will cause idle spinning, in this case stop pressing the button.
Operating load of the push button is about 2.5 kgf.
12-1-2 Designing the structure to clear the condition by pressing the button with finger
Refer to the following when designing the structure to clear the cutter jam by pressing the push button with finger.
Fig 12-4 Dimensions of recommended push button lever
- Use the screws to fix the connection to the push button of the printer mechanism.
※ Recommended screw specifications: M2*4 Tapping Screw
- Refer to the dimensions related to the mechanism in Fig 12-5 for installing the push button lever.
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Push stroke : Approx. 5mm
Fig 12-5 Dimension related to the assembly of the push button lever
- While designing the outer case, make the projected length of the push button outside the case as minimum. Excessive projection may result in disturbance of cutter operation by impact or other causes. (Recommended projected length: Max 4.0 mm)
- Secure the space with the outer case to avoid interference while operating the push button lever. Otherwise it might cause a problem in the operation of the cutter.
- When the cutter jam occurs, press the push button lever 3~5 times in the direction of the arrow as shown in Fig 12-6 to clear the cutter jam. When the cutter jam is cleared, pressing the button will cause idle spinning. In this case stop pressing the button.
Operating load of the push button is about 2.5 kgf.
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Fig 12-6 Example of push button lever operation
- Do not operate the push button lever during operation of the cutter. It may disturb the operation of the cutter causing problems.
12-1-3 Designing the structure to use knob wheel (optional specifications)
When designing the structure to clear a cutter jam with knob wheel, install the device to open the case to secure the space for operating the knob wheel by hand.
When cutter jam occurs, resolve the problem by turning the knob in the direction of the arrow until it cannot be turned anymore as shown in the following picture. When the problem is resolved, it will not turn anymore.
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Fig 12-7 Example of using knob wheel
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12-1-4 Designing the structure to clean the jam using hand driver
When designing the structure to clear the cutter jam using hand driver, make the hole in the outer case of a size so the hand driver can be inserted.
Hole A
Recommend Hole A size: Ø5
Fig 12-8 Example using hand driver and the recommended size of the hole
- When the cutter jam occurs, turn the hand driver in the direction of the arrow shown in
Fig 12-8 until it does not turn anymore to resolve the problem. It will not turn anymore when the problem is resolved. (Number of turns: 1~2 turns)
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13. Thermal Paper Exit Design
Take the following precautions when designing the paper exit
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Fig 13-1 Dimensions related to the paper exit
- Secure enough space so that paper exit is free from external force during printing.
Among the dimensions shown in Fig 13-2, especially incorrect dimension about 2~2.5mm,
12.6
±0.1, and 31 ˚ may cause problems such as shortening the life of cutter or paper jam, therefore design the system with the correct dimensions. Check performance by actually using the device.
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Fig 13-2 Example of recommended paper exit design
- When designing the paper exit for outer case for installing the platen roller block, consider the amount of left and right bending of the cutter blade so that the moving cutter blade does not interfere with the paper exit.
- Design the paper exit of a size so that human fingers cannot enter. Otherwise, people may get injured by the cutter.
- The surface of the paper exit should not have bumps, scratches in the direction of paper exit, or molding parting line. Otherwise it might cause problems such as printing failure, paper jam, or paper cutting failure.
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14. Precautions for Outer Case Design
- Fixed cutter blade in the platen roller block will be exposed when installing the printer mechanism. People may be injured by the fixed cutter blade during operation of the cutter or replacing thermal paper. In order to prevent accidental injury, install the structure on the outer case or attach a warning label.
- As the amount of thermal paper on the roll decreases, curling of the paper is more likely to occur causing printing failure, paper jam, or paper cutting failure as the paper may be jammed on the outer case. Use thermal paper that has severe curling effects and check performance.
- When designing the outer case, secure enough space for the parts close to the printer mechanism except for parts that are connected to the mechanism directly so that they are not loaded by external forces. Loading by external forces may cause problems such as printing failure, paper jam, or paper cutting failure.
- When designing the outer case, block the paper powder or residue generated by paper cutting or usage of thermal paper for a prolonged period of time so that they do not pile up on the control panel or power supply parts.
- The environment temperature increases during thermal printing. Design the system so that the generated heat can be dissipated to the outside easily and prevent burn injury to the users by the heat. Attach a warning label for safety of the users.
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15. Frame Ground
It is advisable to connect the printer body and the platen roller block to the FG (frame ground) of the outer case to prevent damage to the thermal head by static electricity.
Check performance by actually using the device.
15-1 Frame ground connection method
- Connect the frame ground (FG: Terminal No.8, 9) of FPC Cable (50-pin) to frame ground
(FG) or outer case.
- Make the distance between the FG of FPC Cable (50-pin) and FG or outer case as short as possible.
- Use metal screws (nickel coated screws and start washers) to connect the platen roller block to the FG of outer case.
- Electric potential of all frame ground must be the same.
- Depending on the operating conditions, connect the GND terminal (SG) to FG, or put a resistor of 1M Ω between GND terminal (SG) and FG.
16. Activation Control of Dots of Thermal Head
Printing width of the thermal head is 54mm (432dots). When thermal paper with a width narrower than specified is used, printing area may be outside the paper. It is recommended to adjust the number of active dots of the thermal head to prevent this problem.
- Paper width specifications: 58mm 0, -1mm
- Problem may occur if paper narrower than 57mmm is used.
- When using paper narrower than 54 mm, insert the Null value at the beginning and end of the data transmitted to TPH to force the printing width to be narrower.
- As the size of one dot is 0.125mm, divide the difference in the paper width by dot pitch and insert Null values corresponding to length.
17. Auto Cutter Error Handling
All error handling of the printer mechanism checks the ON signal of the cutter home switch with highest priority and handles this error first. If this routine is not applied, it may cause fatal problems to the printer mechanism due to overheating of step motor.
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18. Black Mark Position Design (Optional Specifications)
Refer to the dimensions in the following picture when using black mark function.
Fig 18-1 Dimensions related to black mark, and recommended size of black mark
※
The distance from the photo sensor to heating line of thermal head is approximately
8.5 mm.
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19. Printer Mechanism Handling Method
19-1 Installation of thermal paper
- Press the platen roller block release lever of the printer mechanism.
- Move up the platen roller block to separate from printer mechanism.
- Install thermal paper at the correct position between the paper guide device of the printer mechanism, and put the tip of the thermal paper upward by more than two inches (about
5 cm).
- After installing the paper correctly, press and install the platen roller block.
19-2 Removing thermal paper
- Press the release lever of the platen roller block.
- Move up the platen roller block and remove the thermal paper.
19-3 Procedure to clear thermal paper jam
- Press the release lever of the platen roller block.
- Separate the platen roller block from the printer mechanism and move it up.
- Remove the jammed paper or paper residue.
19-4 Procedure to clear cutter jam
- Method to clear the jam through power recycling
When the cutter jams and normal operation is not possible, turn off the power and turn it on again to clear the jam.
- Method to clear the cutter jam by push button (Refer to Fig 12-1, 12-6)
Press the push button 3~5 times to clear the cutter jam.
Push button lever operating distance: about 5mm
- Method to clear the cutter jam using knob wheel (Refer to Fig 12-7)
Cutter jam can be cleared by turning the knob wheel.
- Method to clear the cutter jam using hand driver (Refer to Fig 12-8)
Cutter jam can be cleared by turning hand driver
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19-5 Precautions when installing/removing thermal paper
- Automatic loading may not work if the thermal head touches the platen roller for a long time without thermal paper as they might get stuck together. If this problem occurs, remove the platen roller block and install it again.
- Tilted installation of thermal paper may cause printing problems. Feed the paper until the paper comes out straight or install again after removing the platen roller block.
- Do not pull the paper with excessive force as it might cause problems to the printer mechanism.
- Thermal papers loose elasticity in an environment of high humidity, which causes problems in printing and cutting. Check the performance sufficiently in high humidity situations.
19-6 Cleaning thermal head
The thermal head must be cleaned as dirt built up on the surface of the thermal head may cause printing problems when it is used for a long time without cleaning.
Clean the head after it has cooled down sufficiently as the temperature of the thermal and peripherals right after printing can be very high.
The procedure for cleaning is as follows.
- Turn off the printer.
- Press the platen roller block separation lever and move the block up and open.
- Soak the soft cotton swab in alcohol, and clean the dirt from the thermal head with the swab.
- When the alcohol is completely dried, install the platen roller block.
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20. Appearance and Dimensions
- Mechanical Device Assembly (Excluding Platen Roller Block)
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- Mechanical Device Assembly (Including Platen Roller Block)
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- Platen Roller Block
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※
Product Approval Sheet
Product Approval Sheet
Product Name SMP6200II
Product
Specifications
Customer
Approved Date
Approver
SMP6200II User’s Manual Rev.1.00
Signature
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