Samsung SRP-350PG - SRP 350 B/W Direct Thermal... User manual
SERVICE
THERMAL RECEIT PRINTER CONTENTS
SRP-350/350S/350P/350U
THERMAL RECEIPT PRINTER
Manual
1. Precaution Statements
2. Product Specification
3. Installation and Operation
4. Disassembly and Assembly
5. Maintenance and Adjustment
6. Reference Information
7. Special Circuit Descriptions
8.
Troubleshooting9.
Exploded Views and Parts List10.
PCB Layout and Parts List
12. Block Diagram
13. Wiring Diagram
14. Schematic Diagrams
SRP-350G/350SG/350PG/350UG
Commands
11.
SRP-350 Ver.2 Series
About
Notes
Precaution symbols
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Samsung Electro-Mechanics
About
Copyright
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SRP-350 )
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Samsung Electro-Mechanics
April 2001.
Samsung Electro-Mechanics Co., Ltd.
Samsung Electro-Mechanics Co., Ltd.
Overview of this Receipt Printer
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Samsung Electro-Mechanics
1 Precaution Statements
1-1 Safety Precautions
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1-1
Samsung Electro-Mechanics
1-2
1-2 Servicing Precautions
WARNING: First read the "Safety Precautions" section of this manual. If some unforeseen
circumstance creates a conflict between the servicing and safety precautions, always
follow the safety precautions.
WARNING: An electrolytic capacitor installed with the wrong polarity might explode.
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1-3 Precautions for Electrostatically Sensitive Devices (ESDs)
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1 Precaution Statements
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1-3Samsung Electro-Mechanics
1 Precaution Statements
1-4
MEMO
Samsung Electro-Mechanics
2-1
2 Product Specifications
2-1 General Specifications
Item Description Remark
Product
Processor •MITSUBISHI M16C/62 Group M30624FGFP (16 Bit)
Internal ROM Size : 256K Byte
Internal RAM Size : 20K Byte
Flash ROM Version
Memory •RAM
SRAM : 1Mbits (KM681000B*1)
FLASH RAM : 8Mbits (AM29F800B*1)
Interface Serial
(RS-232C / RS-485)
•Flow Control :
DTR / DSR (H/W Flow Control)
XON / XOFF (S/W Flow Control)
•Baud Rate : 2400 / 4800 / 9600 / 19200 Bps
•Receive Buffer : 4 Kbytes
•Connector : DB25P Female (I/F PBA Side)
The Flow Control, Baud
Rate, Stop Bit and Parity
Are determined by DIP
S/W position.
Interface Parallel
•Mode :
Forward Mode : Compatibility Mode
Reverse Mode : Nibble / Byte Mode
•Connector : 36 Pin Centronics (Ribbon Type)
USB
•Transfer Type : BULK
•Speed : 12 Mbps (Full-Speed)
•Power : Self-Powered
Printer •Printing Method : Thermal Line Printing
•Printing Speed : 150 mm/Sec, 35.5 Line/Sec (Font A,1/6” Feed)
Auto Cutter •Type : Guillotine
•Cutting Method : 1 Point Partial Cutting
Power Consumption •Approx. 27W (Peak)
AC Adapter •Input : AC 120V ~ 230V, 50Hz ~ 60Hz
•Output : DC24V5%, 2.3A
Environment
Condition •Temperature : 0~ 40
•humidity : 30% ~ 80% RH
Weight •2.3 Kg (With Packing)
Dimensions(mm) •145(W) 195(D) 146(H)
Table 2-1 General Specification
Samsung Electro-Mechanics
•SRP-350 : RS-232 Serial Communication
•SRP-350S : RS-485 Serial Communication
•SRP-350P : IEEE1284 Parallel Communication
•SRP-350U : USB Communication
2 Product Specifications
2-2
2-2 Appearance
2-2-1 Printer Dimensions (mm)
Figure 2-1 Printer Dimension
2-2-2 AC Adapter Dimensions (mm)
Figure 2-2 AC Adapter Dimension
146
195
145
87mm
51mm
150mm
Samsung Electro-Mechanics
2 Product Specifications
2-3
2-2 Appearance
2-2-3 Feature Locat ions
Figure 2-3 Feature Location
1. Cover-Open 8. Braket Dip Switch
2. Case-Upper 9a. RS-232C/RS-485 (Serial I/F Connector)
3. Case-Lower 9b.
4. Label-Control 9c.
IEEE-1284 (Parallel I/F Connector)
5. Push Button
USB (USB I/F Connector)
6. Cover-Cutter
10. Drawer Kick-Out Connector
7. Power Switch
11. DC Power Jack
1
2
3
5
8
7
6
4
Samsung Electro-Mech anics
RS-232 Ver.2 PARALLEL Ver.2
USB
Ver.2
ON
9a
SRP-350/SRP-350S SRP-350P
(RS-232C/RS-485) (PARALLEL)
SRP-350U
(USB)
10 11 9b 10 11 9c 10 11
2 Product Specifications
2-4
2-3 Thermal Printer Specifications
2-3-1 Printer Specification
Item Description Remark
Model •SRP-350 (TPH : KF1803-GF14B – ROHM) Samsung
Print Method •Thermal Line Printing
Dot Density •0.141 mm (7.09 Dots/mm)
Printing Direction •Unidirection with friction feed
Printing Width •72.1920.2mm, 512 dot Position
Character / Line •42 (Font A : 1224)
•56 (Font B : 917 )
Character Spacing •0.28mm (0.01”) (2 dots) (Font A)
•0.28mm (0.01”) (2 dots) (Font B)
Printing Speed •Max. 35.5 Lines / Sec (1/6inch feed)
•Max. 150mm / Sec (5.9” /Sec)
Paper feeding
Speed •Approx. 150mm /Sec
Table 2-2 Thermal Printer Specification
2-3-2 Character Specification
Item Description Remark
•Alphanumeric Characters : 95
•Extended Characters : 128 6 Page (Including one space page)
Number of
Character •International Characters : 32
Character Structure
•12 24 (Font A) (Including 2-dot spacing in horizontal)
•9 17 (Font B) (Including 2-dot spacing in horizontal)
Font A is selected as the default
Table2-3 Thermal Printer Character Specification
Samsung Electro-Mechanics
2 Product Specifications
2-5
2-3 Thermal Printer Specifications
2-3-3 Paper Specification
Item Description Remark
Paper Type •JUJO AF50KS-E
Paper Form •Paper Roll
Paper Width •80 (+0,-1) , 3.14”(+0,-0.039”)
Paper Roll Size •Max 83mm
Spool Inside Dia. •12mm (0.47”)
Spool Outside Dia. •18mm (0.71”)
Table 2-4 Thermal Printer Paper Specification
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2-3-4 Reliability and Environment Specification
Item Description Remark
Life
•Mechanism : 15 Million lines
•Head : 1108Pulses / 100Km
•Auto Cutter :1,000,000 Cut
MCBF •37,000,000 Line
Environmental
Temperature
•Operating : 0~ +45
•Storage : -10~ +50(Except for Paper)
Humidity •10% ~ 90% RH
Table 2-5 Thermal Printer Reliability Specification
Samsung Electro-Mechanics
2 Product Specifications
2-6
2-3 Thermal Printer Specifications
2-3-5 Printable Area
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84.54409,”3
Figure 2-4 Printable Area
2-3-6 TPH(Thermal Printer Head) Specification
Item Description Remark
Heat Element Structure 2 Heaters / Dot
Number of Heat Element 512 Dots
Heat Element Pitch 0.141 mm/dot, 7.09 Dot/mm (180DPI)
Print Width 72.192 0.2mm
Average Resistance 6503%
Thermister
Resistance R25 : 30 5% (At 25)
B Value : 3950 K2%
Temperature : -20~ +80
Table 2-6 TPH Specification
b
cde
a
a = 80-1.0
mm
(3.13”0.02”)
b = 1.41
mm
0.05
mm
(.056”.008”)
c = 72.2
mm
0.2
mm
(2.84”.002”)
d = 2.5
mm
(0.098”) Over
e = 2.5
mm
(0.098”) Over
[All the numeric values are typical]
Samsung Electro-Mechanics
2 Product Specifications
2-7
2-3 Thermal Printer Specifications
Item Maximum Conditions Unit Conditions
Print Cycle(S.L.T.)0.94 ms/Line
Supply Energy 0.315 mJ/Dot Tsub = 25
Supply Voltage 26.4VVp < 28.0V (Vp : Peak of VH)
Substrate Temperature 65 Thermister Temperature
Number of Dots to be
Energized simultaneously 256 Dots Note1
Logic Supply Voltage (Vdd) 7 V Include Peak Voltage of Vdd
Logic Input Voltage (Vin) -0.5 ~ Vdd+0.5 V
Table 2-7 TPH Maximum Condition (At 25)
2-3-7 Other Component Specification
Item Description Remark
Auto Cutter
•Model : ORC-RUY80 (OHYANE RIKI MFG, Co.,Ltd)
•Type : Guillotine Type
•Motor : DC Brush Motor FK-180SH-12280 (Mabuchi Motor)
•Voltage : 24V DC 7 %
•Current : 800mA (Average), 1.6A(Peak)
Paper Feed Motor
•Model : PM35L-048 (NMB)
•Type : 4-Phase, 48-Polarity (PM Type Bi-Polar Driver)
•Voltage : 24V 10% DC
•Resistance : 20at 25per Phase
Paper End Sensor •Reflection Type Photo Sensor
Paper Roll Near End
Sensor
•Reflection Type Photo Sensor
Table 2-8 Other Component Specification
Samsung Electro-Mechanics
2 Product Specifications
2-8
2-4 SMPS Specifications
2-4-1 SMPS (Switching Mode Power Supply) Specification
Item Description Remark
Input Voltage
•Typical : 120V / 230V AC
•Min : 90V AC
•Max : 264V AC
Input Current •Max : 1.5 A(When 120V), 0.75A(When 230V)
In rush Current •Max : 40 A (Peak to Peak)
Line Regulation •+24V 1 %
Load Regulation •+24V 5 %
Ripple Noise •Peak 300mV
O.C.P (Over Current
Protect) •3.0 A ~ 6.0 A
S.C.P (Short
Current Protect) •Fold-Back Method
Table 2-9 Power Adapter(SMPS) Specification
2-4-2 SMPS Output Connector
Pin Number Signal Name
1 +24 VDC
2GND
3N.C
Shield Frame GND
Table 2-10 Power Connector Pin Description Figure 2-5 Power Connector
1
2
3
Samsung Electro-Mechanics
2 Product Specifications
2-9
2-5 Interface Specifications
2-5-1 RS-232C Serial Interface
2-5-1-(a) Specification
Item Description Remark
Data Transmission •Serial
Synchronization •Asynchronous
HandShaking
(Flow Control)
•H/W : DTR / DSR
•S/W : XON / XOFF
XON : ASC Code 11h
XOFF : ASC Code 13h
Signal Level •Logic”1” (MARK) : -3V ~ -15V
•Logic”0” (SPACE) : +3V ~ +15V
Baud Rate •2400 / 4800 / 9600 / 19200 Bps
Data Word Length •7 Bit / 8 Bit
Parity •None / Even / Odd
Connector •DB25P Female (I/F PBA)
Table2-11 RS-232C Specification
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2-5-1-(b) RS-232C I/F Cable
Figure 2-6 RS-232C Cable
PRINTER SIDE
D-SUB25P-MALE
HOST SIDE
CONN : USER SPEC
In Case PC :
D-SUB25P-FEMALE
D-SUB9P-FEMALE
FERRITE CORE : 1 Turn (OP-118E : 18.2
12.5
25.5)
10 mm
Samsung Electro-Mechanics
2 Product Specifications
2-10
2-5 Interface Specifications
2-5-1-(c) Cable Connection
Figure 2-7 RS-232C Cable Connection
2-5-1-(d) Signal Description
Pin No. Signal Name Signal Direction Function
BODY Frame GND - Frame Ground
2 TXD Output Transmit Data
3 RXD Input Receive Data
6 DSR Input
This signal indicates whether the host computer can receive data. (H/W flow control)
MARK(Logic1) : The host can receive a data.
SPACE(Logic0) : The host can not receive a data
The printer transmits a data to the host, after confirming this signal.
When XON/XOFF flow control is selected, the printer does not check this signal
.
7 Signal GND - Signal Ground
20
Note : Refer to the Operation Manual about the busy condition.
DTR Output
This Signal indicates whether the printer is busy. (H/W flow control)
MARK(Logic1) : The printer is busy
SPACE(Logic0) : The Printer is not busy
The host transmits a data to the printer, after confirming this signal.
When XON/XOFF flow control is selected, the host does not check this signal.
Table 2-12 RS-232C Pin Description
(S.G) 1
(TXD) 2
(RXD) 3
(DSR) 6
(DTR) 20
(S.G) 7
1(S.G)
2 (TXD)
3 (RXD)
4 (RTS)
5 (CTS)
6 (DSR)
20 (DTR)
7(S.G)
PRINTER
SIDE(25P)
HOST
SIDE(25P)
(S.G) 1
(TXD) 2
(RXD) 3
(DSR) 6
(DTR) 20
(S.G) 7
1(S.G)
3 (TXD)
2 (RXD)
7 (RTS)
8 (CTS)
6 (DSR)
4 (DTR)
5(S.G)
PRINTER
SIDE(25P)
HOST
SIDE(9P)
Samsung Electro-Mechanics
4RTS Outnput Ready To Send
5 CTS Input Clear To Send
2 Product Specifications
2-11
2-5 Interface Specifications
2-5-1-(e) H/W Flow Control
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2-5-2 RS-485 Serial Interface
2-5-2-(a) Specification
Item Description Remark
Data Transmission •Serial
Synchronization •Asynchronous
HandShaking
(Flow Control)
•H/W : DTR / CTS(Same as DSR)
•S/W : XON / XOFF
XON : ASC Code 11h
XOFF : ASC Code 13h
Signal Level •Logic”1” : SD1-SD2 0.2V, RD1-RD2 0.2V
•Logic”0” : SD1-SD2 0.2V, RD1-RD2 0.2V
Baud Rate •2400 / 4800 / 9600 / 19200 bps
Data Word Length •7 Bit / 8 Bit
Parity •None / Even / Odd
Connector •DB25P Female (I/F PBA)
Table2-13 RS-485 Specification
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2-5-2-(b) RS-485 I/F Cable
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Samsung Electro-Mechanics
2 Product Specifications
2-12
2-5 Interface Specifications
2-5-2-(c) Cable Connection
Figure 2-8 RS-485 Cable Connection
2-5-2-(d) Signal Description
Pin No. Signal Name Signal Direction Function
BODY Frame GND - Frame Ground
2 SD2 Output
3SD1 Output
Transmit Data
“H” : SD1 > SD2, “L” : SD1 < SD2
4 RD2 Input
5RD1 Input
Receive Data
“H” : RD1 > RD2 (RD1-RD20.2V), “L” : RD1 < RD2 (RD1-RD20.2V)
7 Signal GND - Signal Ground
8
9
DR2
DR1 Output
When DTR/DSR is selected, this signal indicates whether the printer is BUSY or
READY. (H/W flow control)
DR1 > DR2 (H) : The printer is BUSY.
DR1 < DR2 (L) : The printer is READY.
The host computer transmits a data to the host, after confirming this signal.
10
11
CS2
CS1 Input
When DTR/DSR is selected, this signal indicates whether the host computer is
BUSY or READY. (H/W flow control)
CS1 > CS2 (H) : The host computer is BUSY.
CS1 < CS2 (L) : The host computer is READY.
The printer transmits a data to the host, after confirming this signal.
Table 2-14 RS-485 Pin Description
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(S.G) 1,7
(SD2) 2
(SD1) 3
(RD2) 4
(RD1) 5
(DR2) 8
(DR1) 9
(CS2) 10
(CS1) 11
1,7 (S.G)
2 (RD-)
3 (RD+)
4 (SD-)
5 (SD+)
8 (CS-)
9(CS+)
10 (DR-)
11 (DR+)
PRINTER
SIDE 485
232
CONVERTER
XX1 = XX+
XX2 = XX- 1,7 (S.G)
3 (RXD)
2(TXD)
5(CTS)
6(DSR)
4(RTS)
20 (DTR)
HOST
SIDE
Samsung Electro-Mechanics
This manual suits for next models
7
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