Brother SC-2000 User Manual

Stamp Creator PROSERVICE MANUALMODEL: SC-2000 Version A

I - 41.9 Stamp Specifications(1) Types and sizes of stampSize Dimensions (mm)121228 × 31202036 × 39303047 × 50404057 × 60106026 × 79143830 × 57185034

III - 782.19 Reassembly of the Xenon Unit AssyInsert the xenon unit assy into the machine at its right side, as shown in Fig. 3.98.Note: Insert the xe

III - 792.20 Reassembly of the Magazine Tray AssyInsert the magazine tray assy into the hole in the machine in the direction of thearrow, as shown in

III - 802.22 Lubrication during ReassemblyApply the grease specified below to the parts indicated in the Figs. 3.101 to 3.103for the reassembly proced

III - 81 Portion: D (Presser frame shaft)Amount: Apply small amount ofgrease to the portion where thepresser frame shaft makes contactwith the bearing

IV - 1CHAPTER IV TROUBLESHOOTING1. GENERALSThis section provides a troubleshooting procedure for a machine failure. It ishowever impossible to forese

IV - 2Cause of Mechanical ErrorError modeChecking methodCauseActionService manualThe motor rotates,but a draft sheet oran ID label is notfed correctly

IV - 3Error modeChecking methodCauseActionService manualThe motor rotates,but a draft sheet oran ID label is notfed correctly.Is the clutch spring ont

IV - 4Error modeChecking methodCauseActionService manualPrinting is notperformed in thecorrect position ofan ID label.Is the transparentsensor assy A

IV - 5Error modeChecking methodCauseActionService manualA draft sheet or anID label is fed, butno printing isperformed.Is theconnectorof thethermalhea

1Stamp Creator PRO SC-2000Electronic PartCONTENTSCHAPTER I ELECTRONIC SPECIFICATIONS...I-11.

I - 5(2) Configuration Grip, skirt, holder, and cap(The holder consists of printing material,an absorption sheet, an ink pack, and aninside plate.) Sk

2CHAPTER III THEORY OF OPERATION...III-11. MAIN PCB...

3CHAPTER IV TROUBLESHOOTING...IV-11. GENERALS...

I - 1CHAPTER I ELECTRONIC SPECIFICATIONS1. CONTROL SPECIFICATIONS(1) CPU 16-bit CPU M37702ROM capacity 32 KbytesRAM capacity 2048 bytes(2) External me

I - 23. POWER SUPPLY SPECIFICATIONS(1) Power supply method Switching regulatorSeparate power supplies for 100V and200V areasNumber of phase: Single(2)

I - 35. SWITCH SPECIFICATIONS(1) Type Metal contact tactile switch6. CHARGE SPECIFICATIONS(1) Output properties Output voltageVariable between 0V and

II - 1CHAPTER II GENERALS1. CONFIGURATION OF THE ELECTRONIC PARTFig. 2.1 shows the configuration of the electronic part, which consists of sevenPCBs,

II - 23. MOTOR(1)Main motorThis motor feeds a draft sheet or an ID label from the platen to the ejectopening. It is a φ42 bipolar motor at a drive vo

II - 3Fig. 2.2 shows the block diagram of the electronic part.Positions of the Connectors on the Main PCBMain capacitorcharge PCBMain motorSize detect

II - 4 Fig. 2.2 Block Diagram of the Electronic Part

III - 1CHAPTER III THEORY OF OPERATION1. MAIN PCB1.1 Logic Components(1) CPUThe CPU (#19: M37702) is a CMOS (16-bit) microprocessor, and controls ands

I - 61.10 Draft Sheet Specifications(1) Dimensions 58 mm × 172 mm × 0.1 mm(2) Material PET film(3) Packaged standard draft sheet Yes (150 sheets) Fi

III - 21.3 Thermal Head Drive CircuitFig. 3.2 shows the thermal head drive circuit.Printing data is synchronized with the CLK signal by the SO signal

III - 31.4 Thermal Head Power Supply Control CircuitFig. 3.3 shows the thermal head power supply control circuit. Fig. 3.3 Thermal Head Power Supply

III - 41.5 Stepping Motor Drive Circuit (Main Motor)Fig. 3.4 shows the main motor drive circuit.The φ42, 48 division stepping motor is used to feed a

III - 51.6 Stepping Motor Drive Circuit (Paper feed Motor)Fig. 3.5 shows the paper feed motor drive circuit.The φ25, 24 division stepping motor is use

III - 61.8 Sub Oscillation CircuitFig. 3.7 shows the sub oscillation circuit.This circuit generates a clock for a serial transfer. Fig. 3.7 Sub Osci

III - 71.9 Reset CircuitFig. 3.8 shows the reset circuit.The reset circuit prevents a logic circuit such as the CPU from malfunctioning whenits power

III - 81.10 Serial Interface CircuitFig. 3.10 shows the serial interface circuit.#4 is a driver IC for RS-232C and converts logic level signals into R

III - 91.11 Parallel Interface CircuitFig. 3.11 shows the parallel interface circuit.The address space for the gate array #13 is used to input and out

III - 101.12 5V Power Supply Circuit (Stabilization Circuit)Fig. 3.12 shows the 5V power supply circuit.3-terminal regulator (#5: S-81350), transistor

III - 111.14 Charge/Discharge Control CircuitFig. 3.14 shows the charge/discharge control circuit. Fig. 3.14 Charge/Discharge Control CircuitThe act

I - 7 Fig. 1.6 ID Label 1438 Fig. 1.7 ID Label 1850 Fig. 1.8 ID Label 2770

III - 121.15 Size Detection, Ribbon Cassette, Open Cover Detection, and KeyScanning CircuitTable 3.1 shows a relationship between the stamp ID, its si

III - 13Stamp ID Size Status of the detection switches0 1 2 3 4 516 1060¢ ¢r r r r17 -¢ ¢r¢r r18 -¢ ¢r r¢r19 -¢ ¢r¢ ¢r20 -¢ ¢r r r¢21 -¢ ¢r¢r¢22 -¢ ¢r

III - 14 Fig. 3.15 Stamp Size Detection, Open Cover Detection, and Key Scanning Circuit

III - 151.16 Room Temperature Detection CircuitFig. 3.16 shows the room temperature detection circuit.The resistance value at the chip thermistor vari

III - 161.18 Xenon Unit Detection CircuitFig. 3.18 shows the xenon unit detection circuit.With the xenon unit that connects each of xenon unit signals

III - 171.19 Reflective Sensor CircuitFig. 3.19 shows the reflective sensor circuit.In the ribbon detection, the presence and the end of the cassette

III - 181.20 Transparent Sensor CircuitFig. 3.20 shows the transparent sensor circuit.In the printing position detection, the printing start position

III - 192. POWER SUPPLY PCB CIRCUITThe power supply is divided into 100V AC and 200V AC systems.APP-4 shows the 100V AC system power supply circuit.AP

III - 20 Fig. 3.21 Control Panel PCB Circuit

III - 214. MAIN CAPACITOR CHARGE PCB CIRCUITAPP-6 shows the main capacitor charge PCB circuit.This main capacitor charge PCB can variably set to 200V-

II - 1CHAPTER IITHEORY OF MECHANISM OPERATION1. PRINTING MECHANISM1.1 Construction of Thermal HeadThe thermal head contains 960 heating elements verti

III - 226. REFLECTIVE SENSOR ASSY CIRCUITFig. 3.23 shows the reflective sensor assy circuit. Fig. 3.23 Reflective Sensor Assy Circuit7. TRANSPARENT

IV - 1CHAPTER IV TROUBLESHOOTING1. GENERALSThis section provides a troubleshooting procedure for a machine failure. It ishowever impossible to forese

IV - 2Cause of Electronic ErrorError modeChecking methodCauseActionService manualNo key-in ispossible.Is there a keypressed?YES Defectivecontrol panel

IV - 3Error modeChecking methodCauseActionService manualThe automatic feedposition of a draftsheet or an ID labelcan not be correctlydetected.Does the

APP - 1

APP - 2

APP - 3

APP - 4D. 100V AC System Power Supply Circuit

APP - 5E. 200V AC System Power Supply Circuit

APP - 6

II - 22. ENGRAVING STAMP MECHANISM2.1 Theory of Engraving StampThe draft sheet printed with a character and graphics is fed onto the transparentplate

Sep., ’985V5014BE0Printed in Japan

II - 32.2 Positioning the HolderThe holder is positioned at the engraving stamp position by the two interlockedshutters that open and close back and f

II - 43. FEED MECHANISM3.1 Feeding Draft SheetThe draft sheets, set in the magazine tray assy, are fed one by one from the sidecontacting the paper fe

II - 53.2 Feeding Draft Sheet and ID LabelThe driving motor rotates each roller via a gear train and the timing belt (MXL belt)to feed a draft sheet a

III - 1CHAPTER III DISASSEMBLY AND REASSEMBLYPrecautions on Safety(1) Disassemble and reassemble the machine on a grounded antistatic sheet.Touching e

Stamp Creator PROSERVICE MANUALMODEL: SC-2000

III - 21. DISASSEMBLY PROCEDURES1.1 Disassembly of the I/F Cable and the AC CordRemove the I/F cable and the AC cord in the back of the machine, as sh

III - 31.2 Disassembly of the Magazine Tray Assy and the Xenon UnitRemove the magazine tray assy by lifting it diagonally.While sliding the slide leve

III - 41.3 Disassembly of the Ribbon Cassette AssyPress the open button on top of the machine to open the cassette cover, andremove the ribbon cassett

III - 51.4 Disassembly of the Main PCB AssyPress part A of the cassette cover to close it, as shown in Fig. 3.5.Cassette coverABody cover Fig. 3.5Turn

III - 6Pull out the connectors from the main PCB assy.Remove the screw to remove the ground wire from the main chassis, as shown inFig. 3.7.Note: Put

III - 71.5 Disassembly of the Capacitor CaseRemove the shield plate and pull out the connector of the power supply harnessfrom the power supply PCB as

III - 8Remove the four screws to remove the capacitor case from the bottom cover.Remove the capacitor harness from the connector of the capacitor case

III - 91.6 Disassembly of the Body CoverTurn the machine over with the right side up, open the cassette cover, and removethe two screws to remove the

III - 10Remove the eject cover and the screw.Remove the slide lever, as shown in Fig. 3.13.Slide leverEject coverScrew Fig. 3.13Remove the three screw

III - 11 Body coverBottom coverFig. 3.15Remove the two screws to remove the control panel PCB holder from the bodycover. Remove the screw from the co

 Copyright Brother 1999All rights reserved.No part of this publication may be reproduced in anyform or by any means without permission in writing fro

III - 121.7 Disassembly of the Main Chassis and the Bottom CoverPress the open button to open the head holder assy, as shown in Fig. 3.17.Open buttonH

III - 13Remove the two screws to remove the ground wire from the PS PCB shield plateand the main chassis, as shown in Fig. 3.19. Main chassisGround wi

III - 14Remove the harness coming out of the main chassis from the bottom cover, asshown in Fig. 3.21. Bottom coverMain chassis Fig. 3.21

III - 151.8 Disassembly of the Power Supply PCB AssyTurn the bottom cover over, and remove the two screws securing the power supplyPCB assy on the bot

III - 161.9 Disassembly of the Thermal Head UnitCut two fastening bands L100 that secure the harness on the main chassis, asshown in Fig. 3.23. Fasten

III - 171.10 Disassembly of the Sensor AssysRemove the screw to remove reflective sensor assy A from the head holder.Remove the screws to remove refle

III - 181.11 Disassembly of the Micro SwitchesRemove the screw to remove micro switch assy A for cassette cover open/closedetection from the main chas

III - 191.12 Disassembly of the Platen Unit AssyAfter removing the two screws, lift the platen unit assy in the directions of thearrows, as shown in F

III - 20Subsequently, separate the film guide from the platen unit, as shown in Fig. 3.30. Film guidePlaten unit Fig. 3.30

III - 211.13 Disassembly of the Presser Unit AssyOpen the presser unit cover in the direction of the arrow.Remove the 12 screws securing the presser u

1Stamp Creator PRO SC-2000Mechanical PartCONTENTSCHAPTER I SPECIFICATIONS...

III - 22 Remove the four retaining rings to remove the presser plate hinge shaft from thepresser frame sub assy, as shown in Fig. 3.32. Retaining ring

III - 23Remove the two retaining rings to remove the presser plate positioning shaft fromthe presser plate.While bending the four claws in the directi

III - 24Remove the two presser bearings, and then pull the presser plate lever shaft andpresser plate lock shaft out from the presser lever, as shown

III - 25Remove the two retaining rings and the two bearings to remove the presser frameshaft.While bending the four claws and the two tongues, remove

III - 261.14 Disassembly of the Head Holder AssyRemove hooks A of the two head holder springs from the grooves of the mainchassis.Remove the two retai

III - 27Remove the two retaining rings and pull out the lever shaft in the direction of thearrow, and remove the lever hook.Remove the two retaining r

III - 281.15 Disassembly of the Gears and PulleysRemove the gears and pulleys in the numerical order shown in Fig. 3.39.Gear 50AGear 44Gear 25Pulley 1

III - 291.16 Disassembly of the Motor Holder Assy and the MotorsRemove the three screws securing the motor holder sub assy on the main chassisto remov

III - 301.17 Disassembly of the RollersRemove the two retaining rings and bearings to remove the driving roller.Remove the retaining ring, paper eject

III - 311.18 Disassembly of the Label Guide AssyRemove the five screws securing the label guide assy on the main chassis, andremove the label guide as

2CHAPTER III DISASSEMBLY AND REASSEMBLY...III-11. DISASSEMBLING PROCEDURES...

III - 32Remove label nip springs R and L.Remove the two screws to remove the sensor bracket from the label guide.Remove the two retaining rings to rem

III - 331.19 Disassembly of the Film Path AssyRemove the two retaining rings and bearings to remove the paper feed roller.Remove the clutch spring, th

III - 34Remove the retaining rings, pull out the two outer plate shafts, and remove theouter plate, the lock plate, and the two return springs.Remove

III - 351.20 Disassembly of the Drawer ConnectorRemove the two screws to remove the drawer connector from the main chassis, asshown in Fig. 3.46. Scre

III - 362. REASSEMBLY PROCEDURES2.1 Reassembly of the Drawer ConnectorSet free bush 50, and free bushes 15 and 70 on the holes in the main chassis, as

III - 372.2 Reassembly of the Film Path AssyWhile bending two parts A of the film path in the directions of the arrows, insertthem into the holes in t

III - 38After setting the sensor bracket on two parts D of the film path assy, set the filmpath assy so that the two locating pins on the film path as

III - 39Pass one outer plate shaft through the hole in the film path in the direction of thearrow, through the holes in the outer plate, the return sp

III - 40In the same manner, pass the other outer plate shaft through the hole in the filmpath in the direction of the arrow, through the holes in the

III - 41Set torsion spring R on the projection of the main chassis so that hook A of torsionspring R will be inserted into the hole in the main chassi

32.18 Reassembly of the Ribbon Cassette Assy...III-772.19 Reassembly of the Xenon Uni

III - 422.3 Reassembly of the Label Guide AssySet the retaining ring, the washer, and the clutch spring on the paper feed rollershaft.Note 1: Before s

III - 43Set the sensor bracket on the two locating pins on the label guide, and secure thesensor bracket on the label guide with the two screws.Set la

III - 44While bending two parts D of the label guide assy to the inside, set the label guideassy in the main chassis.Secure the label guide assy in th

III - 452.4 Reassembly of the RollersWhile pressing ends A of the label nip springs in the directions of the arrows, passeach end of the nip roller th

III - 46Set the retaining ring, the washer, and the clutch spring on the paper feed roller.Note 2: Before setting the clutch spring, apply grease to t

III - 47Insert end A of the driving roller into the hole in the main chassis from the inside,and then insert end B of the driving roller into the hole

III - 482.5 Reassembly of the Motor Holder Assy and the MotorsSet the main motor in the hole in the motor holder sub assy so that the end of theharnes

III - 492.6 Reassembly of the Gears and Pulleys(1) Set gear 21/47 on shaft A.(2) After inserting shaft B through the clutch spring A, set gear 20/50.(

III - 50 Paper ejectroller springPulley 18BearingShaft HPulley 25Shaft FShaft EShaft GShaft IShaft JShaft DShaft AShaft BShaft CGear 19/84MXL belt B69

III - 512.7 Reassembly of the Head Holder AssyPlace two compression springs on two burrs of the head holder as shown inFig.3.64. Hook two catches A o

I - 1CHAPTER I SPECIFICATIONS1. MECHANICAL SPECIFICATIONS1.1 Overview(1) External view See Fig. 1.1.(2) Dimensions 470 mm (W) × 238.3 mm (D) × 180.8 m

III - 52Set the lever hook on the head holder guide, insert the lever shaft into the hole inthe head holder guide, pass the lever shaft through the le

III - 53Pass the rotation shaft through the hole in the main chassis from the outside in thedirection of the arrow.Pass the rotation shaft through the

III - 542.8 Reassembly of the Presser Unit AssySet the size detection PCB assy and the shield plate rear on the shutter rear, andsecure them with the

III - 55Adjust the ends of the ribs of the shutter rear to the centers of the pinion shafts.Set the shutter front so that there will be no clearance b

III - 56Set the two shutter springs on the two hooks of the shutter front and the shutterrear.Insert the four claws of the shutter cover into the hole

III - 57Pass the positioning shaft through the presser plate and the positioning presserplate, and set the retaining rings on both ends of the positio

III - 58Pass the hinge shaft through the hole in the presser frame sub assy from theoutside in the direction of the arrow.Pass it through the presser

III - 59AOn assembling the presser unit assy with the main chassis, adjust the position usingthe presser jig assy and adjustment jig according to the

III - 59B(3) Open the presser plate, then place the adjustment jig in the presser sub unitassy, as shown in Fig. 3.72C.Adjustment jigMain chassisPress

III - 59C(6) Place the presser jig assy on the presser frame sub assy, as shown in Fig.3.73A.Note 6: Before securing the presser jig assy, check the f

I - 21.2 Input Specifications(1) Type of keys Tactile switch(2) Number of keys 2(3) Key layout See Fig. 1.2 Fig. 1.2 Control Panel1.3 Display Specif

III - 60A* Check that the frame of the presser frame sub assy supports the side plates R/Lof the presser jig assy from inside (E).Also check that the

III - 60B(8) Tighten ten screws in the order specified in Fig. 3.74A to 3.74B.Note 8: Tighten those screws twice. Presser sub unit assyPressser jig as

III - 60C(10) Open the presser plate, then tighten two screws, as shown in Fig. 3.74C.Note 9: Tighten those screws twice. Presser plateAdjustment jigS

III - 612.9 Reassembly of the Platen Unit AssySet the platen unit on the film guide, as shown in Fig. 3.75. Film guidePlaten unit Fig. 3.75Insert part

III - 62Secure the platen unit assy with the two screws, as shown in Fig. 3.77. ScrewsMain chassisPlaten unit assy Fig. 3.77

III - 632.10 Reassembly of the Micro SwitchesSet hole A in the micro switch assy A for cassette cover open/close detection on theemboss on the main ch

III - 642.11 Reassembly of the Sensor AssysSecure reflective sensor assy A on the head holder with the screw.Pass the reflective sensor assy A harness

III - 652.12 Reassembly of the Thermal Head UnitFig. 3.81 shows the thermal head unit.Caution: Take care not to touch the thermal head heat generating

III - 662.13 Reassembly of the Power Supply PCB AssyInsert two parts A of the PS PCB shield plate into two holes B in the bottom cover.After setting t

III - 672.14 Reassembly of the Bottom Cover and the Main ChassisInsert the end of the size detection PCB harness into the hole in the bottom cover,and

I - 31.5 Engraving Stamp Specifications(1) Engraving stamp method Light engraving stamp method(2) Operation load 98 N (10 kgf) or lower(3) Light sourc

III - 68Set the main chassis assy on the two locating bosses on the bottom cover, andsecure it on the bottom cover with the six screws. Then, set the

III - 692.15 Reassembly of the Body CoverSet the control panel PCB assy on the control panel PCB holder, and secure it withthe screw.Set the control p

III - 70After passing the control panel PCB harness through the hole in the bottom cover,set the body cover on the bottom cover, and secure it with th

III - 71Set the cassette cover on the head holder guide by setting the two hooks of thecassette cover on the head holder guide, and secure it with the

III - 722.16 Reassembly of the Capacitor CaseSet the ground wire of the capacitor case on the main chassis with the screw, passconnector A of the capa

III - 73When exchanging the capacitor case and main PCB assy, perform thefollowing steps after completing reassembly.Capacitor Case Rank Setting Proce

III - 742.17 Reassembly of the Main PCB AssyPass the harness through the hole of the shield plate, and set the shield plate onthe bottom cover, as sho

III - 75Connect the harness to each connector on the main PCB assy, as shown in Fig.3.94.Stamp size detection sensorMain motorMain capacitor charge PC

III - 76Secure the main PCB bottom plate on the bottom cover with the four screws, asshown in Fig. 3.96.ScrewsScrewsMain PCBbottom plateBottom cover F

III - 772.18 Reassembly of the Ribbon Cassette AssyTurn the machine over with the right side up, and press the open button on thecassette cover to ope