User Manual
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User's Manual SRP-350 Thermal Printer Rev. 1.02 http://www.samsungminiprinters.com
User's Manual SRP-350 Thermal Printer Rev. 1.02 http://www.samsungminiprinters.com
User Manual
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■ Introduction SRP-350 The SRP-350 Roll Printer are as follows: 1. Please be sure to read the instruction in this manual carefully before using a bar code command. 8. Rev. 1.02 - 5 - The main features of external devices such as system ECR, POS, banking equipment, computer peripheral equipment, etc. Low noise thermal printing. 3. RS-232 (IFA-S TYPE), Parallel (IFA...
■ Introduction SRP-350 The SRP-350 Roll Printer are as follows: 1. Please be sure to read the instruction in this manual carefully before using a bar code command. 8. Rev. 1.02 - 5 - The main features of external devices such as system ECR, POS, banking equipment, computer peripheral equipment, etc. Low noise thermal printing. 3. RS-232 (IFA-S TYPE), Parallel (IFA...
Service Manual
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Disassembly and Assembly 5. Troubleshooting 10. Commands 9. Block Diagram 13. Reference Information 7. Special Circuit Descriptions 8. Precaution Statements 2. Product Specification 3. Maintenance and Adjustment 6. Exploded Views and Parts List 11. PCB Layout and Parts List 12. Schematic Diagrams Wiring Diagram 14. THERMAL RECEIPT PRINTER SRP-350 Ver.2 Series SRP-350/350S/350P/350U SRP-350G/350SG/350PG/350UG SERVICE Manual THERMAL RECEIT PRINTER CONTENTS 1. Installation and Operation 4.
Disassembly and Assembly 5. Troubleshooting 10. Commands 9. Block Diagram 13. Reference Information 7. Special Circuit Descriptions 8. Precaution Statements 2. Product Specification 3. Maintenance and Adjustment 6. Exploded Views and Parts List 11. PCB Layout and Parts List 12. Schematic Diagrams Wiring Diagram 14. THERMAL RECEIPT PRINTER SRP-350 Ver.2 Series SRP-350/350S/350P/350U SRP-350G/350SG/350PG/350UG SERVICE Manual THERMAL RECEIT PRINTER CONTENTS 1. Installation and Operation 4.
Service Manual
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...Serial (RS-232C / RS-485) Interface Parallel USB Printer Auto Cutter Power Consumption AC Adapter Environment Condition Weight Dimensions(mm) Description • SRP-350 • SRP-350S • SRP-350P • SRP-350U : RS-232 Serial Communication : RS-485 Serial... BULK • Speed : 12 Mbps (Full-Speed) • Power : Self-Powered • Printing Method • Printing Speed : Thermal Line Printing : 150 mm/Sec, 35.5 Line/Sec (Font A,1/6" Feed) • Type • Cutting Method : Guillotine : 1 Point... Parity Are determined by DIP S/W position. Samsung Electro-Mechanics 2-1
...Serial (RS-232C / RS-485) Interface Parallel USB Printer Auto Cutter Power Consumption AC Adapter Environment Condition Weight Dimensions(mm) Description • SRP-350 • SRP-350S • SRP-350P • SRP-350U : RS-232 Serial Communication : RS-485 Serial... BULK • Speed : 12 Mbps (Full-Speed) • Power : Self-Powered • Printing Method • Printing Speed : Thermal Line Printing : 150 mm/Sec, 35.5 Line/Sec (Font A,1/6" Feed) • Type • Cutting Method : Guillotine : 1 Point... Parity Are determined by DIP S/W position. Samsung Electro-Mechanics 2-1
Service Manual
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2 Product Specifications 2-3 Thermal Printer Specifications 2-3-1 Printer Specification Item Description Model • SRP-350 (TPH : KF1803-GF14B - ROHM) Print Method • Thermal Line Printing Dot Density • 0.141 mm (7.09 Dots/mm) Printing Direction • Unidirection with friction feed...8226; Max. 150mm / Sec (5.9" /Sec) Paper feeding Speed • Approx. 150mm /Sec Table 2-2 Thermal Printer Specification Remark Samsung 2-3-2 Character Specification Item Description Number of Character • Alphanumeric Characters : 95 • Extended Characters : 128 ...
2 Product Specifications 2-3 Thermal Printer Specifications 2-3-1 Printer Specification Item Description Model • SRP-350 (TPH : KF1803-GF14B - ROHM) Print Method • Thermal Line Printing Dot Density • 0.141 mm (7.09 Dots/mm) Printing Direction • Unidirection with friction feed...8226; Max. 150mm / Sec (5.9" /Sec) Paper feeding Speed • Approx. 150mm /Sec Table 2-2 Thermal Printer Specification Remark Samsung 2-3-2 Character Specification Item Description Number of Character • Alphanumeric Characters : 95 • Extended Characters : 128 ...
Service Manual
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...(+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 2 Product Specifications Remark 2-3-4 Reliability and Environment Specification Item Description • Mechanism : 15 Million lines Life • Head : 1 108 Pulses / 100Km ... Temperature • Operating : 0 ~ +45 • Storage : -10 ~ +50 (Except for Paper) Humidity • 10% ~ 90% RH Table 2-5 Thermal Printer Reliability Specification Remark Samsung Electro-Mechanics 2-5
...(+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 2 Product Specifications Remark 2-3-4 Reliability and Environment Specification Item Description • Mechanism : 15 Million lines Life • Head : 1 108 Pulses / 100Km ... Temperature • Operating : 0 ~ +45 • Storage : -10 ~ +50 (Except for Paper) Humidity • 10% ~ 90% RH Table 2-5 Thermal Printer Reliability Specification Remark Samsung Electro-Mechanics 2-5
Service Manual
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...") b = 1.41mm 0.05mm (.056" .008") c = 72.2mm 0.2mm (2.84" .002") d = 2.5mm (0.098") Over e e = 2.5mm (0.098") Over [All the numeric values are typical] Figure 2-4 Printable Area 2-3-6 TPH(Thermal Printer Head) Specification Item Description Heat Element Structure Number of Heat Element 2 Heaters / Dot 512 Dots Heat Element Pitch Print Width Average Resistance Thermister 0.141 mm...
...") b = 1.41mm 0.05mm (.056" .008") c = 72.2mm 0.2mm (2.84" .002") d = 2.5mm (0.098") Over e e = 2.5mm (0.098") Over [All the numeric values are typical] Figure 2-4 Printable Area 2-3-6 TPH(Thermal Printer Head) Specification Item Description Heat Element Structure Number of Heat Element 2 Heaters / Dot 512 Dots Heat Element Pitch Print Width Average Resistance Thermister 0.141 mm...
Service Manual
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2-3 Thermal Printer Specifications 2 Product Specifications Item Print Cycle(S.L.T.) Supply Energy Supply Voltage Substrate Temperature Number of Dots to be Energized simultaneously Logic Supply Voltage (Vdd) Logic Input ... : 24V 10% DC • Resistance : 20 at 25 per Phase • Reflection Type Photo Sensor • Reflection Type Photo Sensor Table 2-8 Other Component Specification Remark Samsung Electro-Mechanics 2-7
2-3 Thermal Printer Specifications 2 Product Specifications Item Print Cycle(S.L.T.) Supply Energy Supply Voltage Substrate Temperature Number of Dots to be Energized simultaneously Logic Supply Voltage (Vdd) Logic Input ... : 24V 10% DC • Resistance : 20 at 25 per Phase • Reflection Type Photo Sensor • Reflection Type Photo Sensor Table 2-8 Other Component Specification Remark Samsung Electro-Mechanics 2-7
Service Manual
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...). 3. Open the cover-open . Doing so can damage the thermal element. Note : Do not scratch the Printer Head. 5-4 Samsung Electro-Mechanics Bu sure to wait for about 10 minutes after turning printer power off the printer power before beginning the cleaning. 1. After confirming that the thermal head (Thermal Element and Radiation Plate) becomes very hot during normal...
...). 3. Open the cover-open . Doing so can damage the thermal element. Note : Do not scratch the Printer Head. 5-4 Samsung Electro-Mechanics Bu sure to wait for about 10 minutes after turning printer power off the printer power before beginning the cleaning. 1. After confirming that the thermal head (Thermal Element and Radiation Plate) becomes very hot during normal...
Service Manual
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... CIRCUIT #3 VTPH(+24V) MAIN BOARD NO. 1 2 3 VOLTAGE DESCRIPTION VDR (+24VDC) Cash Drawer Solenoid Driving / Step Motor Voltage VCC (+5VDC) Logic IC Driving Voltage VTPH (+24VDC) Thermal Printer Head(TPH) Voltage Table 7-1 Power Source Voltage Descriptions 7-1-1 Drawer Driving and Feed, Auto Cutter Motor Voltage : +24Vdc 7-1-2 Logic IC Driving Voltage: +5V 7-1-3 TPH Driving Voltage...
... CIRCUIT #3 VTPH(+24V) MAIN BOARD NO. 1 2 3 VOLTAGE DESCRIPTION VDR (+24VDC) Cash Drawer Solenoid Driving / Step Motor Voltage VCC (+5VDC) Logic IC Driving Voltage VTPH (+24VDC) Thermal Printer Head(TPH) Voltage Table 7-1 Power Source Voltage Descriptions 7-1-1 Drawer Driving and Feed, Auto Cutter Motor Voltage : +24Vdc 7-1-2 Logic IC Driving Voltage: +5V 7-1-3 TPH Driving Voltage...
Service Manual
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STB1 STB2 DOT No. 1 ~ 256 257 ~ 512 DOTs/STB SRP-350 Strobe Processing 256 The content of data is same. 256 Table 7-3 Printer Head Strobe Processing /STB1 CPU M30624FGFP /STB2 /LATCH CLK DATA Printer Line Strobe Circuit Latch Register Shift Register #1 Shift Register #2 THERMAL PRINTER Figure 7-14 Thermal Printer Block Diagram 7-10 Samsung Electro-Mechanics 7 Special Circuit Descriptions 7-9 Thermal Printer Circuit STB No.
STB1 STB2 DOT No. 1 ~ 256 257 ~ 512 DOTs/STB SRP-350 Strobe Processing 256 The content of data is same. 256 Table 7-3 Printer Head Strobe Processing /STB1 CPU M30624FGFP /STB2 /LATCH CLK DATA Printer Line Strobe Circuit Latch Register Shift Register #1 Shift Register #2 THERMAL PRINTER Figure 7-14 Thermal Printer Block Diagram 7-10 Samsung Electro-Mechanics 7 Special Circuit Descriptions 7-9 Thermal Printer Circuit STB No.
Service Manual
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7-9 Thermal Printer Circuit 7 Special Circuit Description CLK DATA#1,2 256 CLK 256 Bits 256 Bits 256 Bits LATCH STB1 STB2 Printing(1~256) Printing(257~512) Printing(1~256) Data#1 and Data#2 Pins are stored in both Shift Register #1 and #2. Table 7-15 Thermal Printer Timing Waveform Samsung Electro-Mechanics 7-11 So, the Data(256 Bits) are shorted on Main PCB.
7-9 Thermal Printer Circuit 7 Special Circuit Description CLK DATA#1,2 256 CLK 256 Bits 256 Bits 256 Bits LATCH STB1 STB2 Printing(1~256) Printing(257~512) Printing(1~256) Data#1 and Data#2 Pins are stored in both Shift Register #1 and #2. Table 7-15 Thermal Printer Timing Waveform Samsung Electro-Mechanics 7-11 So, the Data(256 Bits) are shorted on Main PCB.
Service Manual
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... Power Vcc VTPH Ok? Check Auto Cutter Assembly(Motor, Cutter...) 5. Refer to the Power Problem 2. Check the Signal(Step_A, Step_B) on CPU 2. Y N 1. 9 Troubleshooting 9-4 Thermal Printer and Feed Motor Problem Thermal Printer Problem Control Signal N Ok? Y 1. Check the HArness Feed Motor Problem Feed Motor Ok? Check the Harness 6. Check the Step Motor and the related...
... Power Vcc VTPH Ok? Check Auto Cutter Assembly(Motor, Cutter...) 5. Refer to the Power Problem 2. Check the Signal(Step_A, Step_B) on CPU 2. Y N 1. 9 Troubleshooting 9-4 Thermal Printer and Feed Motor Problem Thermal Printer Problem Control Signal N Ok? Y 1. Check the HArness Feed Motor Problem Feed Motor Ok? Check the Harness 6. Check the Step Motor and the related...
Service Manual
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12 Block Diagram 12-1 SRP-350 / SRP-350S / SRP-350P / SRP-350U I/F BOARD PRINTER MEACHANISM POWER ADAPTER DC24V POWER SUPPLY VCC CIRCUIT VCC VDR(+24V) VTPH(+24V) RESET CIRCUIT FLASH AM29F800 ADDRESS DATA SRAM KM681000 ADDRESS DATA BUZZER DIP ...) RS-232 DRIVER RS-485 DRIVER IEEE1284 DRIVER USB DRIVER RS-232C CONNECTOR RS-485 CONNECTOR PARALLEL CONNECTOR USB CONNECTOR SENSOR CIRCUIT AUTO CUTTER DRIVER THERMAL HEAD PAPER FEED MOTOR LED & BOTTON CIRCUIT P_END & NEAR SENSOR AUTO CUTTER A_CUT SENSOR...
12 Block Diagram 12-1 SRP-350 / SRP-350S / SRP-350P / SRP-350U I/F BOARD PRINTER MEACHANISM POWER ADAPTER DC24V POWER SUPPLY VCC CIRCUIT VCC VDR(+24V) VTPH(+24V) RESET CIRCUIT FLASH AM29F800 ADDRESS DATA SRAM KM681000 ADDRESS DATA BUZZER DIP ...) RS-232 DRIVER RS-485 DRIVER IEEE1284 DRIVER USB DRIVER RS-232C CONNECTOR RS-485 CONNECTOR PARALLEL CONNECTOR USB CONNECTOR SENSOR CIRCUIT AUTO CUTTER DRIVER THERMAL HEAD PAPER FEED MOTOR LED & BOTTON CIRCUIT P_END & NEAR SENSOR AUTO CUTTER A_CUT SENSOR...