BIXOLON SRP-270 Service Manual
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BIXOLON SRP-270 Service Manual

Impact printer
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All manuals and user guides at all-guides.com
Service Manual
SRP-270
Impact Printer
Rev. 3.02
http://www.samsungminiprinters.com

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  • Page 1 All manuals and user guides at all-guides.com Service Manual SRP-270 Impact Printer Rev. 3.02 http://www.samsungminiprinters.com...

  • Page 2: Table Of Contents

    All manuals and user guides at all-guides.com SRP-270 ■ Table of Contents 1. Precaution Segment............................ 6 1-1 Safety Precautions........................... 6 1-2 Servicing Precaution..........................7 1-3 Precaution for Electrostatically Sensitive Devices (ESDs) ..............8 2. Installation and Operation .......................... 9 2-1 Installation..............................9 2-1-1 AC Adapter Installation ........................
  • Page 3 All manuals and user guides at all-guides.com SRP-270 4. Hardware ..............................29 4-1 Wiring Diagram ............................29 4-2 Block Diagram............................30 4-3 Special Circuit Descriptions ........................31 4-3-1 Power Circuit........................... 31 4-3-2 RESET Circuit ..........................32 4-3-3 Cash Drawer Circuits ........................33 4-3-4 I/F PBA Detect Block Diagram......................
  • Page 4 All manuals and user guides at all-guides.com SRP-270 8-2 Handling the Printer ..........................61 8-2-1 Precautions on Printer Handling ..................... 61 8-2-2 Paper Setting Procedures (Insertion/Removal) ................62 8-2-3 Ribbon Cassette Installation ......................64 8-3 Maintenance ............................65 8-3-1 Cleaning ............................65 8-3-2 Inspection............................
  • Page 5 SRP-270 ■ About About this Manual This Service Manual describes how to perform hardware service maintenance for the BIXOLON SRP-270 Receipt Printer. Notes Notes may appear anywhere in the manual. They draw your attention to additional information about the item.

  • Page 6: Precaution Segment

    All manuals and user guides at all-guides.com SRP-270 1. Precaution Segment Follow these safety, servicing and ESD precautions to prevent damage and to protect against potential hazards such as electrical shock. 1-1 Safety Precautions 1. Be sure that all of the built-in protective devices are replaced. Restore any missing protective shields.

  • Page 7: Servicing Precaution

    All manuals and user guides at all-guides.com SRP-270 1-2 Servicing Precaution WARNING 1: First read the Safety Precaution section of this manual. If some unforeseen circumstance creates a conflict between the servicing and safety precautions, always follow the safety precaution.

  • Page 8: Precaution For Electrostatically Sensitive Devices (Esds)

    All manuals and user guides at all-guides.com SRP-270 1-3 Precaution for Electrostatically Sensitive Devices (ESDs) 1. Some semiconductor (solid state) devices are easily damaged by static electricity. Such components are called Electrostatically Sensitive Devices (ESDs); examples include integrated circuits and some field- effect transistors.

  • Page 9: Installation And Operation

    All manuals and user guides at all-guides.com SRP-270 2. Installation and Operation 2-1 Installation 2-1-1 AC Adapter Installation 2-1-2 Interface Cable Installation 1. Mack sure the printer is turned off with the “Off” 1. Turn off the printer, host ECR and Computer.

  • Page 10: Paper Roll Installation

    All manuals and user guides at all-guides.com SRP-270 2-1-5 Paper Roll Installation 6. If the paper is loose, wind the Rewind Spindle to tighten the paper. 1. Using a new roll paper, unroll the paper and cut the end as shown.

  • Page 11: Operation

    All manuals and user guides at all-guides.com SRP-270 2-2 Operation 2-2-1 Setting the DIP switches The DIP switches are located on the bottom of the printer. The DIP switches are used to set the printer to perform various functions. Follow these when changing DIP switches setting : Turn the printer power switch off.

  • Page 12: Setting The Dip Switch (Ieee1284 Parallel, Usb Interface)

    All manuals and user guides at all-guides.com SRP-270 2-2-3 Setting the DIP switch (IEEE1284 Parallel, USB Interface) • DIP Switch 1 FUNCTION DEFAULT Emulation Selection Refer to the following Table 1 Auto-Cutter Enable Disable FONT SPACE Function for Service Engineer...

  • Page 13: Hexadecimal Dumping

    All manuals and user guides at all-guides.com SRP-270 2-2-4 Hexadecimal Dumping This feature allows experienced users to see exactly what data is coming to the printer. This can be useful in finding software problems. When you turn on the hexadecimal dump function, the printer prints all commands and data in hexadecimal format along with a guide section the help you find specification commands.
  • Page 14 All manuals and user guides at all-guides.com SRP-270 (A) Serial Self-Test Sheet (B) Parallel Self-Test Sheet - 14 - Rev. 3.02...
  • Page 15 All manuals and user guides at all-guides.com SRP-270 (A) Serial Self-Test Sheet (B) Parallel Self-Test Sheet - 15 - Rev. 3.02...

  • Page 16: Product Specifications

    All manuals and user guides at all-guides.com SRP-270 3. Product Specifications 3-1 Appearance 3-1-1 Printer Dimensions (mm) Figure 3-1 Printer Dimension 3-1-2 AC Adapter Dimensions (mm) Figure 3-2 Adapter Dimension - 16 - Rev. 3.02...

  • Page 17: Feature Locations

    All manuals and user guides at all-guides.com SRP-270 3-1-3 Feature Locations 1. Cover, A/C/D 2. Case-Upper, A/C/D 3. Case-Lower, A/C/D 4. Label-Control 5. Power Switch 6. Bracket DIP Switch 9a.RS-232C/RS-485 (Serial I/F Connector) 9b.IEEE-1284(Parallel I/F Connector) 9c.USB(USB I/F Connector) 10. Drawer Kick-Out Connector 11.

  • Page 18: General Specifications

    All manuals and user guides at all-guides.com SRP-270 3-2 General Specifications Item Description Remark • SRP-270 : RS-232 Serial Communication • SRP-270S : RS-485 Serial Communication Product • SRP-270P : IEEE1284 Parallel Communication • SRP-270U : USB Communication • MITSUBISHI M16C/62 Group M30622 SFP (16 Bit)

  • Page 19: Character Specification

    All manuals and user guides at all-guides.com SRP-270 3-3-2 Character Specification Item Description Remark 0.3175 mm Dot Interval 0.3528 mm Font Type ASCII Chinese Print Font 9 x 9 7 x 9 16 x 16 Printing Columns Character Size (mm) 3.2 x 1.7...

  • Page 20: Printer Head Specification

    All manuals and user guides at all-guides.com SRP-270 3-3-4 Printer Head Specification Item Description Remark Model • DH400-G10 • Type: Ballistic Type (Free Fight) Specification • Number of Wire: 9Pin • Resistance: 10W ± 15% • Inductance: 4.5mH ± 15% (Open Circuit) Solenoid Coil •...

  • Page 21: Ribbon Cassette Specification

    All manuals and user guides at all-guides.com SRP-270 3-3-9 Ribbon Cassette Specification Item Description Remark Standard • ERC-38 (Black / Red) Color • Black & Red Size • 13 mm (W) x 6 mm (L) • ERC-38 (B/P): 1,500,000 Characters (Black)

  • Page 22: Interface Specifications

    All manuals and user guides at all-guides.com SRP-270 3-5 Interface Specifications 3-5-1 RS-232C Serial Interface 3-5-1(a) Specification Item Description Remark Data Transmission • Serial Synchronization • Asynchronous HandShaking • H/W : DTR / DSR XON: ASC Code 11h (Flow Control) •...
  • Page 23 All manuals and user guides at all-guides.com SRP-270 3-5-1(c) Cable Connection PRINTER HOST PRINTER HOST SIDE (25P) SIDE (25P) SIDE (25P) SIDE (9P) Figure 3-7 RS-232C Cable Connection 3-5-1(d) Signal Description Pin No. Signal name Direction Function Frame Ground Output...

  • Page 24: Rs-485 Serial Interface

    All manuals and user guides at all-guides.com SRP-270 3-5-1(f) S/W Flow Control When XON/XOFF flow control is selected, the printer transmits XON(ACSII 11h) or XOFF(ASCII 13h) signal through the TXD line. If the Printer is BUSY, the Printer transmits XOFF(ASCII 13h) to host through the TXD line.

  • Page 25: Ieee1284 Parallel Interface

    All manuals and user guides at all-guides.com SRP-270 3-5-2(d) Signal Description Pin No. Signal name Direction Function Frame GND Frame Ground Output Send Data ”H” : SD1 > SD2 , “L” : SD1 < SD2 Output Input Receive Data ”H” : RD1 > RD2 (RD1-RD2 ≥ 0.2V) Input “L”...
  • Page 26 All manuals and user guides at all-guides.com SRP-270 3-5-3(b) Reverse Mode Specification (Nibble / Byte mode) Data transmission from the printer to the host computer. The STATUS data transmission from the printer to the host computer is accomplished in the Nibble or Byte mode.

  • Page 27: Usb2.0 Interface

    All manuals and user guides at all-guides.com SRP-270 3-5-4 USB2.0 Interface SRP-270 support the USB (Universal Serial Bus) Serial Communication. 3-5-4(a) Specification Item Description Remark Transfer Type • BULK • Bi-direction, Half-Duplex Data Signal • Differential Signal Pair (D+ / D-) •...

  • Page 28: Cash Drawer Specifications

    All manuals and user guides at all-guides.com SRP-270 3-6 Cash Drawer Specifications 3-6-1 Cash Drawer Cable Ferrite Core : 1 turn (OP-18E : 18.2 x 12.5 x 25.5) Figure 3-12 Cash Drawer Cable 3-6-2 Cable Connection Pin No. Description Direction...

  • Page 29: Hardware

    All manuals and user guides at all-guides.com SRP-270 4. Hardware 4-1 Wiring Diagram [Figure 4-1 Board Wiring Diagram] - 29 - Rev. 3.02...

  • Page 30: Block Diagram

    All manuals and user guides at all-guides.com SRP-270 4-2 Block Diagram [Figure 4-2 Block Diagram] - 30 - Rev. 3.02...

  • Page 31: Special Circuit Descriptions

    All manuals and user guides at all-guides.com SRP-270 4-3 Special Circuit Descriptions 4-3-1 Power Circuit This system is operated under 110Vac or 230Vac. The power circuit supplies the three differential DC voltage sources. [Figure 4-3 Power Block Diagram] VOLTAGE DESCRIPTION...

  • Page 32: Reset Circuit

    All manuals and user guides at all-guides.com SRP-270 4-3-2 RESET Circuit Reset signal is a signal in order to start-up CPU under Power-on. Reset circuit uses a reset ICTL7705ACD (U5). When +5Vdc is fallen under 4.3Vdc by Power-off, reset signal prohibits the system from misoperating by lowering down to 0V.

  • Page 33: Cash Drawer Circuits

    All manuals and user guides at all-guides.com SRP-270 4-3-3 Cash Drawer Circuits The circuit is used for opening cash drawer and driven by the Q8 (STA471). When its state is high level signal, Q8 (STA471) drive the solenoid to open the cash drawer. As an optional item, we provide sensor switch (we call it a compulsory switch) which checks the drawer whether it is opened or not.

  • Page 34: I/F Pba Detect Block Diagram

    All manuals and user guides at all-guides.com SRP-270 4-3-4 I/F PBA Detect Block Diagram When the printer is ON, the printer checks what kind of the I/F PBA is installed. After detection, the CPU specify the I/O port properly. The following is the method of I/F PBA detection.

  • Page 35: Rs-232C Communication Block Diagram

    All manuals and user guides at all-guides.com SRP-270 4-3-5 RS-232C Communication Block Diagram The CPU is used for serial communication. And also RS-232C Driver (MAX232), is used to serial communication. Show following block diagram. M30622SFP [Figure 4-8 RS-232C Communication Block Diagram]...

  • Page 36: Rs-485 Communication Block Diagram

    All manuals and user guides at all-guides.com SRP-270 4-3-6 RS-485 Communication Block Diagram The CPU is used for serial communication. And also RS-485 Driver (MAX488), is used to serial communication. Show following block diagram. M30622SFP [Figure 4-10 RS-485 Communication Block Diagram]...

  • Page 37: Parallel Communication Block Diagram

    All manuals and user guides at all-guides.com SRP-270 4-3-7 Parallel Communication Block Diagram The printer support the bidirectional Parallel Interface with Centronics, Nibble, Byte Mode. The Centronics is Forward and the Nibble, Byte are reverse Mode. M30622SFP [Figure 4-10 IEEE1284 Communication Block Diagram] 4-3-8 USB Communication Block Diagram The printer support the USB (Universal Serial Bus).

  • Page 38: Dip Switch Circuit

    All manuals and user guides at all-guides.com SRP-270 4-3-9 DIP Switch Circuit The key Board Circuit consist of the scan signal of 4 lines and the return signal of 4-line. The CPU sends repeatedly and continuously the scan data R1, 2, 3, 5 through P10.0~10.2, P1.1. The DIP S/W information input in the return signal if the specific DIP S/W is ON Status during the given time.

  • Page 39: Disassembly And Assembly

    5. Disassembly and Assembly 5-1 General Precautions on Disassembly This chapter describes the Disassembly and Reassembly procedures for the Printer of SRP-270 Series. This Printer contains electronically sensitive device. Use caution when handling any component. Whenever servicing the machine, you must perform as follows: 1.

  • Page 40: Cover Assy (Srp-270D Type)

    All manuals and user guides at all-guides.com SRP-270 5-3 Cover Assy (SRP-270D Type) 1. Open the Cover Assy and take out the Spool 2. Push the locking lib to the direction of arrow Winding, as shown below. and remove the Cover Assy, as shown below.

  • Page 41: Case Upper Assy (Srp-270A & Srp-270C Type)

    All manuals and user guides at all-guides.com SRP-270 5-5 Case Upper Assy (SRP-270A & SRP-270C Type) 1. Open the cover Assy. 3. Separate the Case Upper from the Case Lower. 2. Remove four screws. - 41 - Rev. 3.02...

  • Page 42: Case Upper Assy (Srp-270D Type)

    All manuals and user guides at all-guides.com SRP-270 5-6 Case Upper Assy (SRP-270D Type) 1. Push the locking lib to the direction of arrow and 2. Remove four screws securing the Case Upper. remove the Cover Assy, as shown below.

  • Page 43: Printer Assy (Srp-270D Type)

    All manuals and user guides at all-guides.com SRP-270 5-8 Printer Assy (SRP-270D Type) 1. Before you disassembly the Printer Assy, you 3. Remove two screws securing the Printer Assy. should remove : Separate the Printer Assy from the Case Lower.

  • Page 44: Main Pcb

    All manuals and user guides at all-guides.com SRP-270 5-10 Main PCB 1. Before you disassembly the Main PCB, 2. Remove four screws securing the Main PCB. you should remove : Separate the Main PCB from the Main Frame. - Plate Bottom (see Chapter 4-2) - Cover Assy (see Chapter 4-3 &...

  • Page 45: Alignment And Adjustments

    All manuals and user guides at all-guides.com SRP-270 6. Alignment and Adjustments 6-1 Printer Adjustment When assembling this printer, be sure to refer to the required adjustment procedure. To ensure normal operation of the printer after disassembly or replacement of a Component for maintenance or repair.

  • Page 46: Troubleshooting

    All manuals and user guides at all-guides.com SRP-270 7. Troubleshooting 7-1 Power Problem • Check the Power Out on SMPS. • Check the Fuse. • Check the related Pattern. • Check the IC34063. 7-2 System Problem • Check the Reset part (IC & Pattern) •...

  • Page 47: Ieee 1284 Problem

    All manuals and user guides at all-guides.com SRP-270 7-8 IEEE 1284 Problem • Check the Control Line (CS3, WR, RD). • Check the 1284 Control Line and Status Line. • Check the Signal of ICs (U3, U6, U5) • Check the related Circuit and Pattern on I/F PBA.

  • Page 48: Appendix (Spec Of Smp-710/710N)

    All manuals and user guides at all-guides.com SRP-270 8. Appendix (Spec of SMP-710/710N) 8-1 Specifications 8-1-1 Printing specifications Item Description Printing method serial impart dot-matrix Head wire configuration 9-pin serial type Dot pitch 0.352mm(1/72") Dot wire diameter 0.3mm(0.01") Printing direction...

  • Page 49: Character Specifications

    All manuals and user guides at all-guides.com SRP-270 8-1-2 Character specifications 8-1-2-1 Character sets Item Description Alphanumeric International Graphics 128×7 pages 8-1-2-2 Character structure * 7×9 with 400 half-dot positions per line. * 9×9 with 400 half-dot positions per line.

  • Page 50: Paper Specifications

    All manuals and user guides at all-guides.com SRP-270 8-1-3 Paper specifications Item Description Paper types Paper roll: Platen paper or pressure-sensitive paper Paper roll width 76±0.5mm (2.99±0.20") Paper roll maximum diameter Ø83mm(3.27") Unless there is an optional near-end detector, you cannot use a paper roll Paper roll core with the core and paper glued together.

  • Page 51: Ribbon Cassette Specifications

    All manuals and user guides at all-guides.com SRP-270 8-1-4 Ribbon Cassette specifications Compatible Model Color Ribbon life ("1) ERC-38 (B) Black 3 million characters {with continuous printing at 25 (77°F)} ℃ Black: 1.5million characters {with continuous printing at 25 (77°F)} ℃...

  • Page 52: Reliability

    All manuals and user guides at all-guides.com SRP-270 8-1-6 Reliability Item Description This is an average failure interval based on failures relating to wear out and random failures up MCBF to the life of 18 million lines. 8-1-7 Main Unit specifications...

  • Page 53: Electrical Specifications

    All manuals and user guides at all-guides.com SRP-270 8-1-8 Electrical specifications 8-1-8-1 The explanations of the circuit operations 1) Head Carriage Step Motor - It rotates and moves the Dot Head by using the several gears and synchronous belt - Print Speed : 4.6 Line/Sec - This step motor is control by constant current method.

  • Page 54: Principle Of Movement

    All manuals and user guides at all-guides.com SRP-270 8-1-10 Principle of Movement 8-1-10-1 Head Feeding Mechanism This printer is using DC24V PM Type Stepping motor. As shown in figure the motor section consists of the motor. Motor speed control IC, motor drive/brake circuit and motor speed interface.
  • Page 55 All manuals and user guides at all-guides.com SRP-270 8-1-10-2 Printing Mechanism When the specified print head drive pulse is input to the drive coil, the iron core is magnetized, and the actuating plate is pulled in the direction of arrow A.
  • Page 56 All manuals and user guides at all-guides.com SRP-270 8-1-10-4 Home Position Detection Mechanism The home position detection mechanism consists of the detection protrusion at the left side of the carriage sub assembly and the sensor sub assembly at the left side of the base frame. It determines the home position, identifies the carriage position, and detects carriage sub assembly operation errors.
  • Page 57 All manuals and user guides at all-guides.com SRP-270 8-1-10-5 Paper Feeding Paper feeding is performed by conveying the paper feed motor` s rotational power from the paper feed motor gear through the paper feed reduction gear, paper feed gear, and paper fed roller.
  • Page 58 All manuals and user guides at all-guides.com SRP-270 8-1-10-6 Ribbon feeding When the carriage motor rot ate s counter clockwise and the carriage motor gear rotates in the direction of arrow A, the Gear Reduction B' Gear Reduction A Gear Reduction B, rotate in the directions of arrows B, and C, B' respectively.
  • Page 59 All manuals and user guides at all-guides.com SRP-270 * Ribbon shifting operation Ribbon shifting action is as follows. As the Carriage Motor rotates clockwise, Head carriage Assy moves from left to right. When you'd like to change from red color to black color you should shift Head carriage Assy as shows in figure timing chart.
  • Page 60 All manuals and user guides at all-guides.com SRP-270 [ Description of Timing chart.2 ] When head carriage step motor stops(left → left) ⑬ The start position of head carriage step motor from right to left ⑭ ⑮ When fir st outing of head pin from right to left When last outing of head pin from right to left and when starting line feed ⓐ...

  • Page 61: Handling The Printer

    All manuals and user guides at all-guides.com SRP-270 8-2 Handling the Printer 8-2-1 Precautions on Printer Handling 8-2-1-1 Precautions on transport 1) When trans porting this printer. It’s proper handling method is to support both side of Frame main with both hands.

  • Page 62: Paper Setting Procedures (Insertion/Removal)

    All manuals and user guides at all-guides.com SRP-270 8-2-1-3 Precautions on use 1) Since this printer employs magnetic substance (Motor, Solenoid), avoid using it in locations exposed to excessive iron filings, dirt, dust or other foreign particles. 2) Never perform a printing operation without the paper and ribbon installed.
  • Page 63 All manuals and user guides at all-guides.com SRP-270 8-2-2-2 Precautions on Paper Insertion 1) After cutting the edge of paper straight as shown in figure insert the paper. Which is described on next figure. 2) Insert the paper straight into the paper entrance section.

  • Page 64: Ribbon Cassette Installation

    All manuals and user guides at all-guides.com SRP-270 8-2-3 Ribbon Cassette Installation The Ribbon Cassette use must conform to the standards prescribed in the Specifications. Never use non-standard types, because such use may result in such trouble as the malfunction of printing quality.

  • Page 65: Maintenance

    All manuals and user guides at all-guides.com SRP-270 8-3 Maintenance To ensure the maintenance of this printer at its initial performance level throughout a long product life as well as preventing potential troubles, be sure to perform maintenance and management according to the points described in the following subsections.

  • Page 66: Lubricants And Adhesive Application

    All manuals and user guides at all-guides.com SRP-270 8-4 Lubricants and Adhesive Application Lubrication and application adhesive plays an important role in maintaining this printer at its initial performance level, throughout a long product life as well as preventing potential troubles. Make sure to apply the specified lubricants or adhesive in the appropriate amounts at the specified intervals.

  • Page 67: Tools, Lubricants And Adhesives

    All manuals and user guides at all-guides.com SRP-270 8-5 Tools, Lubricants and Adhesives 8-5-1 List of Tools Tool Designation Availability Brush #1 Brush #2 Cleaning brush Screwdriver (+) No.2 Tweezers Round pliers Diagonal cutting nipper Electric Soldering iron Thickness gauge ET holder #2.5...

  • Page 68: Repair Guidelines

    All manuals and user guides at all-guides.com SRP-270 8-6-3 Repair Guidelines Phenomenon Condition Cause Level Check point & Method Repair Method 1. Motor Motor does not ·Check the input ①Defective ·Inspect and repair does not rotate despite power input to...
  • Page 69 All manuals and user guides at all-guides.com SRP-270 Phenomenon Condition Cause Level Check point & Method Repair Method 2. No dot Motor rotates Defective ·Observe by ·If input pulse is ⑤ printing normally but no input charge oscilloscope not generated or...
  • Page 70 All manuals and user guides at all-guides.com SRP-270 Phenomenon Condition Cause Level Check point & Method Repair Method Intermittent Wear or ·Check the teeth of ·If worn or damaged, ① Intermittently changes in damage of each gear and of the...
  • Page 71 All manuals and user guides at all-guides.com SRP-270 Phenomenon Condition Cause Level Check point & Method Repair Method 8. Uneven Uneven line Defective See cause of phenomenon 1 ① ① paper spacing of the paper supply feeding pitch printed paper ②...
  • Page 72 All manuals and user guides at all-guides.com SRP-270 Phenomenon Condition Cause Level Check point & Method Repair Method 12. No Entry of ·Measure resistant ·In case cutting ① working of solenoid is cut value between substitute solenoid Solenoid terminal of solenoid resistance: Some 70±10% (25 )

  • Page 73: Assignment Connector Pin

    All manuals and user guides at all-guides.com SRP-270 8-6-4 Assignment Connector Pin 8-6-4-1 Connector 30pin * Connector: Head, head carriage/paper feed step motor, solenoid P/E sensor, control * Model: 1.0mm FFC cable Mechanism side: 403-030-099-061 [Taiwan TACK co.] In or Out...

  • Page 74: Disassembly

    All manuals and user guides at all-guides.com SRP-270 8-7 Disassembly To disassemble this printer, perform the assembly procedures described in section 8-8 Assembly in the reverse sequence. First, the main assembly blocks are disassembled and divided into the sub-assembly blocks, then each of the individual blocks is disassembled.

  • Page 75: Sub-Assemblies

    All manuals and user guides at all-guides.com SRP-270 8-8-1 Sub-assemblies 8-8-1-1 Carriage Head Assy Name of Parts Method and Procedure Drawings RIN G FE (2ea) 1. At first, set the BERIN G FE ① ① CARRIAGE HEAD to be inserted into the shaft of JIG.
  • Page 76 All manuals and user guides at all-guides.com SRP-270 8-8-1-4 Lever Tension Belt C Assy Name of Parts Method and Procedure Drawings SHAFT PUL 1. At first, grease SHAFT PULLEY ① ① LEVER TENSION with HG-31S. ② BELT 2. Next insert PULLEY and then ③...
  • Page 77 All manuals and user guides at all-guides.com SRP-270 8-8-1-7 Bracket PF “R” Assy Name of Parts Method and Procedure Drawings ①BRACKET P/F “R” 1. At first, grease the small shaft of ②GEAR PF IDLE BRACKET P/F “R” with EM -501.

  • Page 78: Main-Assemblies

    All manuals and user guides at all-guides.com SRP-270 8-8-2 Main-assemblies 8-8-2-1 Base Paper Feed Assy - #1 Name of Parts Method and Procedure ①BASE PAPER FEED 1. At first, set BASE PAPER FEED in the JIG. Next, insert ① ②SHAFT TAKE UP SHAFT TAKE UP into the hole.
  • Page 79 All manuals and user guides at all-guides.com SRP-270 8-8-2-2 Base Paper Feed Assy - #2 Name of Parts Method and Procedure ①GEAR TAPE UP 1. Make BASE PAPER FEED stand (left side), and then, insert ②GEAR TU PULLEY GEAR TAPE UP to fit SHFAT(D -CUT) (long side is ①...
  • Page 80 All manuals and user guides at all-guides.com SRP-270 8-8-2-3 Base Paper Feed Assy - #3 Name of Parts Method and Procedure ①SUB PCB ASSY 1. Set ① SUB PCB ASSY to fit the hole in the bottom face of ②SCREW TAPPING (M2*3, 2EA) BASE PAPER FEED and tighten two SCREW TAPPING.
  • Page 81 All manuals and user guides at all-guides.com SRP-270 8-8-2-4 Main assembling - #1 Name of Parts Method and Procedure ①FRAME MAIN C/K ASSY-4 1. Set ① FRAME MAIN C/K ASSY -4 on the JIG. ②SERIAL NO. TAG 2. Paste SERIAL NO. TAG in the right side and TAPE ②...
  • Page 82 All manuals and user guides at all-guides.com SRP-270 8-8-2-5 Main assembling - #2 Name of Parts Method and Procedure ①GEAR REDUCTION A 1. Set FRAME MAIN on the JIG. ②GEAR REDUCTION B 2. Set ①GEAR REDUCTION A, GEAR REDUCTION B ②...
  • Page 83 All manuals and user guides at all-guides.com SRP-270 8-8-2-6 Main assembling - #3 Name of Parts Method and Procedure ①AD LEVER 1. Set FRAME MAIN on the JIG. ②SHAFT HEAD GUIDE 2. Insert ① AD LEVER in the left side and then, turn to the downward.
  • Page 84 All manuals and user guides at all-guides.com SRP-270 8-8-2-8 Main assembling - #5 Name of Parts Method and Procedure ①RIBBON FRAME 1. Insert ⓐSPRING RIBBON FRAME into the hole in left side of ②SPRING RIBBON FRAME ⓑRIBBON FRAME to ward arrow on shows in Fig. 1 detail.

  • Page 85: Adjustment

    All manuals and user guides at all-guides.com SRP-270 8-8-3 Adjustment When assembling this printer, be sure to refer to the required adjustment procedure. To ensure normal operation of the printer after disassembly or replacement of a Component for maintenance or repair. Be sure to perform along to the required method.

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