BIXOLON SRP-270 service manual Disassembly, Assembly, Wbh, Wph, Psw

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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.

Disassembling printer components beyond the example shown in exploded view of SMP-710/710N at the PPL may result in damage to the printer and its functions, so you are advised not to do so.

8-8 Assembly

The assembly process is divided into the sub-assembly and main assembly procedures. First, assemble the sub- assembly, then proceed to assembling the main assemblies.

Perform assembly while referring to component shapes and mounting positions shown in exploded view.

The '*' symbol in the "Assembly Step" column indicates the need for a (Check) or (Adjustment). The (Adjustment) process is explained in section 8-9. Even if only a small amount of disassembly has been performed, confirm the presence/absence of the pertinent adjustment point during assembly.

Circled numbers in the "Assembly Step" column indicate that lubrication is required during assembly of the component and that such lubrication will be difficult unless performed during assembly.

Details on the application of lubricants or adhesives, including point that require application after total assembly of the printer, are described in section 8-4 Lubrication and Adhesive Application perform such application while referring to exploded view.

All small parts are represented by abbreviations as listed in the table below.

* List of abbreviations for small parts

Abbreviation

Explanation

WBH

Washer faced Binding Head Screw

PH

Pan Head machine screw

WPH

Washer faced Pin Head Screw

T/T PH

Pan Head Taptite screw

T/P PH

Pan Head Tapping Screw

PW

Plain washer

WW

Wave Washer

PSW

Poly slide washer with slit

SP

Spring pin

RE

Retaining ring type-E

PP

Parallel pin

FS

Franged Screw

Rev. 3.02

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Contents SRP-270 SRP-270 Alignment and Adjustments SRP-270 Overview of this Receipt Printer About this Manual Precaution symbolsAbout CopyrightWaring Do not use an isolation transformer during this test Precaution SegmentSafety Precautions Servicing Precaution Precaution for Electrostatically Sensitive Devices ESDs AC Adapter Installation Installation and OperationInstallation Interface Cable InstallationPaper Roll Installation Operation Setting the DIP switchesSetting the DIP switch RS-232C Serial Interface Mode Setting the DIP switch IEEE1284 Parallel, USB InterfaceYES OFF Self Test Mode Hexadecimal DumpingSerial Self-Test Sheet Parallel Self-Test Sheet SRP-270 AC Adapter Dimensions mm Product SpecificationsPrinter Dimensions mm AppearanceFeature Locations Feature LocationPrinter Mecha Specification General SpecificationsPrinter Mecha Specifications USBPrinter SMP-710/SMP-710N Pin Description Character SpecificationAscii GNDFeed & Carriage Motor Specification Printer Head SpecificationPrinter Head Thermistor Specification Auto cutter specificationOther Component Specification Smps SpecificationsRibbon Cassette Specification Smps Switching Mode Power Supply SpecificationInterface Specifications 1 RS-232C Serial Interface 1a Specification1e H/W Flow Control 1d Signal Description1c Cable Connection 2c Cable Connection 2 RS-485 Serial Interface 2a Specification1f S/W Flow Control Printer Host Side2f S/W Flow Control 2d Signal Description3a Forward Mode Specification Compatibility mode IEEE1284 Parallel Interface3c Signal Specification Compatibility/Nibble/Byte mode 3c IEEE1284 I/F Cable4 USB2.0 Interface 4a Specification4b Signal Description 4c USB I/F CableCash Drawer Cable Cash Drawer Specifications※ Note +24V is always output through pin 4 during power on Cable ConnectionWiring Diagram HardwareBlock Diagram Block DiagramDrawer Driving and Feed, Auto Cutter Motor Voltage +24Vdc Power CircuitSpecial Circuit Descriptions Logic IC Driving Voltage +5VReset Circuit Reset Block DiagramCash Drawer Block Diagram Cash Drawer Circuits4 I/F PBA Detect Block Diagram PBA DIPC1 DIPC2 DIPC35 RS-232C Communication Block Diagram RS-232C Communication Block Diagram6 RS-485 Communication Block Diagram 10 RS-485 Communication Block DiagramParallel Communication Block Diagram USB Communication Block DiagramDIP Switch Circuit 12 DIP Switch Block DiagramPlate Bottom Disassembly and AssemblyGeneral Precautions on Disassembly Cover Assy SRP-270D Type Cover Assy SRP-270A & SRP-270C TypeCase Upper Assy SRP-270A & SRP-270C Type Case Upper Assy SRP-270D Type Printer Assy SRP-270A & SRP-270C TypePrinter Assy SRP-270D Type Auto Cutter AssyMain PCB Interface Board AssyAdjustment of Head gap Alignment and AdjustmentsPrinter Adjustment Troubleshooting Ieee 1284 Problem USB ProblemAppendix Spec of SMP-710/710N SpecificationsPrinting specifications Character specifications ANKPaper specifications Ribbon Cassette specifications Mcbf Main Unit specificationsReliability Electrical specifications Mechanisms specificationsPrinciple of Movement SRP-270 SRP-270 SRP-270 Operation of Color change Description of Timing chart.1 Circuit board block diagram Precautions on Printer Handling Handling the PrinterPaper Setting Procedures Insertion/Removal Remove method by manual Ribbon Cassette Installation Inspection MaintenanceCleaning Lubricants and Adhesive Application Tools, Lubricants and Adhesives RepairRepair Guidelines FPCRev SRP-270 SRP-270 Phenomenon Assignment Connector Pin Taiwan Tack coWBH DisassemblyAssembly WPHSub-assemblies Check Point①SHAFT Pulley ②SWITCH Lever③WIRE Assy ②LEVER Tension③GEAR Knob ①BRACKET P/F R②GEAR PF Idle ④GEAR Knob IdleMain-assemblies ③WASHER Belt Guide ①GEAR Tape UP②GEAR TU Pulley ⑤BRACKET PF L③MANUAL Cutter ①SUB PCB Assy②SCREW Tapping M2*3, 2EA ⑤PLATEN Paper Guide③TAPE Insulation ①FRAME Main C/K ASSY-4②SERIAL NO. TAG ④LEVER Color Change②GEAR Reduction B ⑧FPC Connector①GEAR Reduction a ③RIBBON Feeder Assy⑤RIBBON Frame ⑥SPRING Ribbon Frame ①AD Lever ②SHAFT Head Guide ③SHAFT Head Carriage⑤HEAD Print ⑧HEAD Cover Assy①RIBBON Frame ②SPRING Ribbon Frame Adjustment