Epson 4003353 manuals
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133 pages 4.39 Mb
EPSON TERMINAL PRINTER As SERVICE MANUALEPSONc -. Nagano, @Copyright 7994 by SEIKO EPSON CORPORATION - 2 C 8 -.,1.1 FEATURES 9 k\ Figure 1-1. Exterior View of the \(A~i.,et)Stylus Color Table 1-1. Interface Cards * The asterisk is a substitute for the Iastdigit, which varies bycountty.Table 1-3. Character Tables 11 o 13 &-P 17 L.&1.3.1 Serial interface Specifications L_-Figure 1-7. Data Transmission Timing Table 1-9. Signal and Connector Pin Assignments 18 c . . ,. 20 Un1.4.1 Control Panel ~.Buttons IFigure 1-8. Control Panel Appearance L 24 c., . c . ;25 1.4.4 Error ConditionsTable 1-18. Error Indications 1.4.5 Printer Initialization Initialization 1.5 MAIN COMPONENTS(C137 CN1 Q14 , z~ SLA7041 IC14 1.5.1 Main Control Board MAIN Board) . . . . . . . . . \@ RM12 RM11 K BAT 1 Figure 1-9. MAIN Board Component Layout 26 .,1---1 27 Mi-l:0 n mH(M-4A1O) Figure 1-12. Printer Mechanism 1.5.5 Housing II 28 LcFigure 1-13. Housing 29 Chapter 2 Operating PrinciplesTable of Contents2-i Head). . . . . . .2.4 ofthe 2.3.1 Operating Principles OPERATING PRINCIPLES OF THE ELECTRICAL CIRCUITS OPERATING PRINCIPLES OF THE PRINTER MECHANISM 2.1 OVERVIEW 2-1 212.2.1 2.2.2 2.2.3 2.2.4 2.2.5 2.2.6 2.2.7 . . . . . . . . . . . . . . . . . . . . . . . . . 2-12 2-13 Power Supply Circuit . . . . . . . . . . . . . . . . . 2.3.2 Operating Principlesofthe Drive Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DMAControlier. INK SYSTEM MANAGEMENT Operation . . . . . . . . . . . . . . . . . . . . ....._...;.. 2.4.2.1 Refresh Timer (Monochrome and Head) 2.4.2.2 Timer (Monochrome and Head). . . . . . . 2.4.2.3 Flushing Counter (Black, 2-13 2-15 2-16 2-16 2-17 2-19 2-20 221 2-22 2-23 2-24 2-24 2-25 2-28 2-31 2-31 30 List of FiguresList of Tables 2.1 OVERVIEW 2.2 OPERATING PRINCIPLES OF THE PRINTER MECHANISM 31 *-J:Figure 2-1. Printer Mechanism Manual 2.2.1 Printer Mechanism 32 ,avi,~et~L~ti,.YerPiezo)>NoueFigure 2-2. Structure of Principles of the Printing Operation 33 Normal stateInjectir state Figure 2-3. Principles of the Printing Operation S* d 34 -k(,Figure 2-4. Microwave Mode Operation . 35 klulCarriage Drive Mechanism Table 2-1. Carriage Drive Motor Specifications Table 2-2. Drive Terms c)Figure 2-5. Carriage Drive Mechanism 2.2.2.1 Platen Gap Adjust Lever 36 x24. ~r) (Plain paper, Bond r . . .-> --r - -.,Paper /Platen Gap Adjust (A) Platen Table 2-3. Gap Adjust Lever Position -- -+-- -- -.*- .- -0.6mm gap -.-.- - (Envelop or Transparency) Figure Platen Gap Lever Operation 2.2.3 Paper Feed Mechanism (B) Table 2-4. Paper Feed Drive Motor Specification PPS 37 Table 2-5. Drive TermsFigure 2-7. Paper Feed Mechanism 2.2.4 Ink System This Um /Pullp Friction (for cleaning BM rnk printers ink system is composed of the mechanisms: W Ink cartridge Pump mechanism Cap mechanism Waste ink drain tank Wiping mechanism The figure below shows a diagram of the system. color head head 38 1 [a)br/blackhead) . . . . . - Clatch -, Figure Ink System Block 39 h-+Table 2-6. Pump Mechanism Operation 0: 41 u0:Figure 2-13. Pump Operation 42 1-(i ---; ---------- ---------- ------------ surt%ce), mechanism cleans the surface of the wiping The spring Vatve semndary equipped with a is printer power this operation perfimns pMter use. horn nozzles from drying or keeps bubbles mechanism prevents the cap The MO Co/w Princip&s stylus M9nual 2.2.6 Cap Mechanism forming inside the nozzle while the printer is not in Figure 2-14.automatically when print data is not received or when turned off during the printing or ink system operations. (Since the power switch is circuit, this operation cart be performed.) Also this printer has 2 caps, 1 for the blackhead and 1 for the color head. 11, ----- -A : -... ::---+ Wiper Drive Gear ~~ Lever Platen Clatch Wiper Drive Gear Frame :: ,. .-, i Figure 2-15. Wiping Mecha6ism 43 2.3 OPERATING PRINCIPLES OF THE ELECTRICAL CIRCUITS Elecrical Figure 2-16. Block Diagram of the Circuit 2.3.1 Operating Principles of the Power Supply Circuit Table 2-7. DC Voltage Distribution 44 dis fed back to the primary switching circuit through a return Biock 2-17. Power Supply Circuit Hgure hot? I It11VDC line voltage +35V generated after passing through the is WC side, +35 operation. Along with the switching * device -* resets the CXI to printkad allows to the capping position after power has been turned off. The CPU that is rnowted -g the detectim W-@ F+13 Diagramphotocou pier Sty/us Color Service Manual 45 mOperating Principles (IC7) NJU6355E IC (IC12) 93C46 EEPROM Centronics@ drive control, external manages (IC2) E05A96 The 2.3.2 Operating Principles of the Main Control Circuit for Mac). Gate array (ink management) protection. The timer mmmm =eryFigure 2-18. Main Control Circuit Block Diagram 2.3.2.1 Reset Circuits Figure 220. 4 70 Circuit Block Diagramnon-maskable and this causes a +28V, below monitors the IC using reset @ interrupt (NM). 46 LFigure 2-19. Reset 2.3.2.2 Sensor Circuitsmechanism to determine whether there is paper in the printer or not. A LOW level the signal ~~o hSensor Circuit Block Diagram 47 *c wCarriage Motor Drive Circuit Figure 2-21. Carriage Motor Circuit Block Diagram Table 2-8. Serial Data Contents (typ.)data and how these data are transacted 48 L1=r*v-+-la Figure 2-22. Serial Data Transfer Procedure 49 Paper Feed Motor Drive CircuitTable 2-9. Paper Feed Motor Drive Modes Figure 2-23. Paper Feed Motor Drive Circuit Diagram 50 c)I--d2S.2.5 64-bit parallel CLAT SED5620D color head drive circuit. Then, head driver Drive Circuit latches the head data when gate array E05A96BA outputs the BLAT or signal, and the latched data komes Figure 2-24. Trapezoidal Drive Wave Form 2-25. Drive Circuit Block Diagram 2-20 +*-> *51 DMA Controller Figure 2-26. DMA Controller Operation D-RAM Refreshment Controller (CPU-2CAS Figure 2-27. D-RAM Cycle Timings Table 2-10. Junction Method DRAM) 52 CPU H8 (ICI) D-RAM (IC5) 79 28 14F HWR 80 OCAS LWR, ~, & LCAS =3 78RAS 13b RD OEFigure 2-28. Junction Method (CPU-DRAM) 2.4 I 53 n9 , Figure 2-29. Relation of Ink System & Carriage Operation 2.4.1 Ink Operations 54 r 2.4.1.1 Power On Operation :::::;::;::;;;;rmd cnT::y;:g;;sTLFigure 2-30. Power On Operation Classification 55 Cleaning Selection ModeCL I (Normal Cleaning): CL3 CL2 (Power Cleaning): (Fail Cleaning) 2.4.1.3 Micro Absorbing Cleaning Operation 56 c?2.4.1.5 Print Start 622.4.1.4 Power Off Operation Sets the Out of (CW or CCW) Figure 2-31. Power Off Operation ClassificationMoves the carriage to the home position. (When the paper is in the printer, ejects the paper.) 4. .;. 58 c4. ( button mnuins exchanging state. (The printer inkcartridge printer enters the 2. age rekasesthecarri mom pressed for is button the when perfbmwd operation is ~s 3 seconds; the carriage then moves to the ink cartridge replamnent position. e lock in this state until the AH Figure 2-32. Ink Cartridge Replacement Classification -. . ,Rev. 59 Wiping Operation 2. 4. 2. Sets t 2.1.4.11 Wiping Operation 2 2.4.1.12 Rubbing Operation 2.4.1.13 Disengage ON Operation 2.4.1.14 Disengage OFF Operation 2.4.1.15 Micro Absorbing Operation 60 e)7 2.4.1.16 Carriage Lock Set (Performed when 2.4.1.18 Refresh 2.4.1.17 Carriage Lock Reset 2.4.1.19 Adjust Lever Operate Position Moving Sequence 2.4.2 Timer and Counter Refresh Timer (Monochrome and CMY Head) 2-30 61 start:= Ink Level Counter R (On the RAM) (Monochrome= Rb, start:(Blaclq Timer Fail Flushing Counter (Black, Absorbing Head) CL Counter K (Monochrome = Kb, 62 cm, 4 CMY= 4. CL CMY= KKb, Counter KK (Monochrome = CL2 2.4.2.7 counts K CQunter The CL KK. mode according to the value of the CL counter K and the This 2.4.2.6 Ky) KKy) Protect Counter 63 Chapter3 Disassembly and Assembly MAIN 64 3.1 OVERVIEW3.1.1 Precautions for Disassembling the PrinterDisassembly and Assemb/y Stylus Color Service I%!!??&Pt 3.2 DISASSEMBLY AND ASSEMBLYMi3nual in precautions Follow / Section 3.1.1 when disassembling the printer. b , TMS START 65 w7 i -. Motor Removal Figure 3-1. Disassembly Flowchart Upper Case Removal 66 u D&u ma :3 nmm :3 9 B] Control Panel Figure 3-2. C137 PNL Removal N UFigure 3-3. Upper Case Removal 3.2.2 Power Supply Unit PSB/PSE (C137 Board) Removal C13 Figure 3-4. Power Supply Unit Removal 67 c. c . 68 ,,: :.[[[[[[[from CN1l, CN9, CN1O, CN8, CN7, CN6, CN5, 69 L77 k.Figure 3-16. Carriage Home Position Sensor Removal3.2.5.8 PE Sensor Removal Bottom Frame Figure 3-17. PE Sensor Removal Paper Feed Roller 78 IIFigure 3-19. Paper Feed Roller Assembly Removal Paper Assembly Removal Tension Roller Assembly Figure 3=18. Tension Roller Assembly RemovalFeed Roller Assembly 3.2.5.10 Upper Frame Removal 79 A\\) ! //Tension Spring Knob W-AE-ring ~gure 3-20. Upper Frame Removal 80 Chapter 4 AdjustmentsIhead) . . . . . . . . . . . . . . . . . . . . . Table of Contents 4.1 OVERVIEW 4-1 x-x Black Head Angle List of Figures Head Gap Adjustment Sample. . . . . . . . . . . . . . . . . . . . . . .......4-4 List of Tables 81 4.1 OVERVIEWTable 4-1. Required AdjustmentsHead gap 4.1.1 Destination Data Writing Operation 82 r ..,. .-. ,83 Bi-D (Bidirectional Printing) Alignment Adjustment4.1.3 Head Gap Adjustment I 1 84 dFigure 4-1. Head Gap Adjustment Sample 85 oRev. A4-5 c1 E 0.25 BK; sPacer,angular, nIn4.1.4 Black I Seting (Spacer (Angle Adjust Conception) Adjustments Head Angle Adjustment Figure 4-2. B-Head Angle and Linear, Angular Spacer *I I I 0.33 I I -1 DFig. 4-3. Spacer Kinds & Relation of Shape and Thickness Figure 4-4. Black Head Angle Adjustment Sample In 86 LJ Figure 4-5. Spacer Selection II 88 oFigure 4-7. Spacer (Spacer Angular IAngular Replacement Position) Replacement Method 4.1.5 Black - Color IZ4-9 (Head Fr&t/Rear Vertical Position 3. Head Vertical Adjustment#l the ~d black adjustment adjusts the vertical position between the TMS head and the color head. (Join the top nozzle of both the #l nozzle of the black head nozzle of the color head.) This adjustment can be made only by using the linear spacer of 89 ! %-Figure 4-8. Black-Color Head Vertical Adjust Confirmation Pattern PMting Conceptionblack- color head vertical adjustment is based upon the black head angle. Figure 4-9. Spacer Linear Selection Sample 91 o(Linear Spacer Replacement Position)4.1.6 Color Head Angle Adjustment 92 rFigure 4-13. Color Head m- +*~ *T/ / TFigure 4-12. C-Head Angle and Spacer Angular Position Angle Confirmation Sample 93 a Angular Spacer (For Color Head) D, angular spacer YMC angular spacer YMC-B angular spacer YMC-C angular spacer YMC-D 0.45 angular spacer YMC-E Figure 4-14. Relationship of the Shape and Thickness Replace the right Replace the right angular spacer angular spacer Figure 4-15. Spacer Select Judgement Figure 4-16. Removing the Rubber Cap 94 I 95 41?E5iirTu~J~@Figure 4-17. Spacer Angular Replacement Method(YMC) 4.1.7 Platen Gap Adjustment Table 4-2. Gap and Adjustment Direction 96 CwCcw CwFigure 4-18. Adjusting the Paper Gap lzzzzzz----- 97 Yl99 w&lFigure 5-1. Troubleshooting Process Table 5-1. Motor Resistance Flowchart Table 5-2. Sensor Status Table 5-3. Error Codes Recovery and cartridge 100 o. . . : 102 c1START / Mthea)rlect W** ,.-., (--J *; + .: ----- fStylus Co/or service Manual Troubleshooting 103 rAS-5 YES v(See the 5.2.2 Error is detected START ND E!E!!?-Rev. 5.2.3 Failure occum during printing START I 104 J 105 &5.2.4 4Twbleshootina Printer does not feed the paper correctly m 106 STARTEND 108 UNIT REPAIR - C137 MAIN BOARDtable Table 5-6. Repair of the MAIN 5-6. Repair of the C137 MAIN (Cont.) 109 r1 112 (-J cmdCpOlnt Repair of the Printer S7. &rWk9 coblf Stylus M9nud (Cont.) Solution mn ~~n~ VB@y .?+ +. , 113 Chapter 6 Maintenance6.1 PREVENTIVE MAINTENANCE AND ADHESIVELUBRICATION 6-1 6.2 SERVICE MAINTENANCE 6-3Figure 6-1. Lubrication Figure 6-2. Lubrication and and Adhesive Points Adhesive Points6-4 (2) . . . . . . . . . . . . . . . . . . . . . . . . 6-5 114 6.1 PREVENTIVE MAINTENANCE115 mnuai6.2 SERVICE MAINTENANCE Cleaning 6.2.2 Waste Ink Drain Tank Replacement 116 6.3 LUBRICATION AND ADHESIVE (lo)Table 6-1. Recommended LubricantsTable 6-2. Lubrication and Adhesive Points 119 AppendixA.1 EXPLODED DIAGRAM A.4 A-16 120 !A-1 A.1 CONNECTOR SUMMARYFigure A-1. Interconnection of +-Klotorr PNL MAIN I intercomection The figure below shows the between the major components of the Stylus Color. AC PSB/PSE ICN2 Unit 0 Black u z ensor q-cl-torComponents 121 Table A-1. Connector SummaryPin Assignments - Table A-2. Connector Locatfon OOecri@On PS board CN1 123 Connector Table Table A-9. Connector A-10. Connector Pin Assignments - Table A-8. Connector Pin Assignments - Pin Assignments - Pin Assignments - - Pin Assignments Table A-6. CN5 CN6 CN8 CN9 A-1 1. Connector Pin Assignments- CN1OTable A-1 2. Connector Pin Assignments- CNI Table A-13. Connector Pin Assignments - 1 124 I/oI/oStY/us Color Service Manual Amendix A-15 t9ED, (=) , @ 125 1 @-W- 2 I?n cl PNL F-I 3 In Component Layout 126 Figure A-3. C137 MAINBoard Circuit Diagram (2) 127 wl mtl IL!$ Figure A-4. (X37 PSB Board Circuit DiagramA-1 O Stylus Color service Manual Afmendix A-n --l 2 128 T~n+-: h--n-=( Figure A-5. PSE Board Circuit DiagramSty/us Color sefvk@Mmt4d + CN 1 129 7)7SW6 Figure A-6. PNL Board Circuit DiagramA-12 Sty/us Co/or Service Manual Appendix A.3 CIRCUIT BOARD COMPONENT LAYOUT 130 1 .+
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