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Toshiba MR-3022 Remove 2 screws and take off the bracket, Original length detection sensor S4

Models: MR-3018 MR-3022

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(3) Remove 2 screws and take off the bracket.

Bracket

Fig. 4-81

(4)Disconnect 1 connector. Release 2 latches and take off the original empty sensor.

[E]Original length detection sensor (S4)

(1)Take off the feeder lower guide.

( P. 4-10 "[E] Feeder lower guide")

(2)Disconnect 1 connector. Release 2 latches and take off the original length detection sen- sor.

Original empty sensor

Fig. 4-82

Original length detection sensor

Fig. 4-83

© 2005 - 2011 TOSHIBA TEC CORPORATION All rights reserved	MR-3018/3020/3021/3022
	DISASSEMBLY AND ASSEMBLY

4 - 29

05/12

Page 63

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Toshiba MR-3022, MR-3018 service manual Remove 2 screws and take off the bracket, Original length detection sensor S4

Contents

MR-3018/3020/3021/3022 11/12 Trademarks11/12 Page Contents Rewriting ROM Firmware Updating Circuit Diagram / Harness DiagramMR-3018/3020 MR-3021/3022 SpecificationsSpecifications Main Components Location Components06/09 Sectional View S8S4 S10 Electric Parts LayoutS12 S11 S7 S6 S5Solenoid Symbols and Functions of Various ComponentsSensors and Switches MotorsDiagram of Signal Blocks Description of Interface Signals Outline Feed motor drive sectionRead motor drive section Original feed motor drive section Intermediate transfer roller Read motor drive sectionExit/reverse roller Original exit/reverse motor drive sectionGate solenoid Reverse flap Exit/reverse motor ReverseOriginal width size Original Size DetectionOriginal tray width sensor = high level Open = low level ShortA4 series width sizes mixed at B5-R standard A4 series width sizes mixed at A3 / A4 standardA4 series width sizes mixed at B4 / B5 standard A4 series width sizes mixed at A4-R standardLT series ORG-SRS LT series width sizes mixed at LD / LT standardLT series width sizes mixed at LG / LT-R standard Jam Power on Standby Radf jam accessCover OPEN? All sensors OFF? Empty sensor ON?Registration roller rotates. Feed motor rotates reverse OriginalCertain period Time passed? Read motor rotatesSent level High Scanning start signalCertain period Duplex?Read motor stops Certain period Time passed? Original exit/reverse Sensor ON?Jam Read sensor OFF? Certain period Time passed?Gate solenoid on Scanning start signal sent level Low Scanning completedTransport request Signal received? Jam Original exit/reverse motor and read motor stopRead motor and exit/reverse motor rotate at requested speed Exposure and scanning start Original Scanning completedSensor OFF? Original exit/reverse motor and read motor stop Original intermediate Transport sensor ON?Jam Original exit/reverse Sensor OFF? Drive Circuit for Feed Motor Description of CircuitDrive Circuit for Read Motor Drive Circuit for FAN Motor Drive Circuit for Exit MotorDrive Circuit for Pickup Solenoid Reset CircuitDrive Circuit for Gate Solenoid Cover Front coverFront cover Pin Jam access coverRear cover Rear coverLeft cover Take off the jam access cover by sliding itRemove 1 screw and the hinge pin Left coverOriginal tray Original reverse tray Original reverse trayTake off the paper feeder unit RollerPaper feeder unit Remove 1 clip and slide 2 bushingsClip Pickup roller Pickup roller PMFeed roller PM ShaftShaft Slide the pulley and remove 1 pinPull out the shaft and take off the feed roller PulleySeparation roller PM Take off the jam access guide Feeder lower guideStay Exit/reverse roller Registration rollerExit/reverse roller Exit guidePre-reading guide Pre-reading guideIntermediate transport roller Hinge pinScrew Bushing ConnectorPre-reading roller Post-reading rollerPlaten guide Flange Bearing BushingBushing HolderRing Reverse registration rollerUpper guide Post-reading rollerRoller Open the RADF. Take off the reverse regis- tration rollerRead motor Motor / Motor drive sectionFan motor M4 Read motor M2Harness clamp Read motor drive sectionSpring SpringScrew Tensioner Ring Remove 3 screws and then take off the bracketTake off 1 timing belt and 4 bushings Timing beltOriginal feed motor drive section Original feed motor M109/01 Take off the timing belt, bushings and pulleyRing Bushing Bracket White Black RedSection Disconnect 1 connector from the Radf conOriginal exit/reverse motor M3 Original feed motor driveBracket SolenoidOriginal pickup solenoid SOL1 Original pickup solenoidGate solenoid SOL2 Mark-off lineGate solenoid Original tray width sensor S2 Sensor/switchOriginal tray sensor S1 Release 2 latches and take off the original tray sensorOriginal tray sensor Metal plate cover Jam access cover sensor S11Jam access cover sensor Original empty sensor S3Remove 2 screws and take off the bracket Original length detection sensor S4Original empty sensor Original length detection sensor Original width detection sensor-2 S7 Original registration sensor S5Take off the feeder lower guide Feeder lower guide Original width detection sensor-1 S6Original exit/reverse sensor S10 Read sensor S9Take off the pre-reading upper guide Pre-reading guide Original intermediate transport sensor S8Original exit/reverse sensor Disconnect 3 terminals. Remove 1 screw Original jam access cover opening/closing switch SW1Take off the original jam access cover Radf opening/closing sensor S12PC Board Radf control PC board ADF boardADF board Stopper OthersHinge stopper Remove 1 screw and then take off the hingeDisassembly and Assembly Checking Adjustment of PositionAdjustment 05/12 05/12 MR-3021/3022 only Install the right-hand hinge screw at the rearInstall the bracket on the left-hand hinge Side05/12 ~0.5mm 0mm Adjustment of HeightTurn it clockwise Turn it counterclockwise Heightened19 Chart Original Adjustment of SkewAdjustment Simplex copying 05/12 26 Chart Original Adjustment of the Leading Edge PositionAdjustment 11/12 Adjustment of Horizontal Position 11/12 Adjustment of Copy Ratio 11/12 Adjustment of Radf Opening/Closing Sensor Adjustment Troubleshooting for Mechanical Errors TroubleshootingCheck or replace the Radf board Troubleshooting for Electrical ErrorsJam not reaching the read sensor Feed signal reception jamJam Jam not reaching the original registration sensorStop jam at the original exit/reverse sensor Radf jam access cover open jamStop jam at the original registration sensor Stop jam at the read sensorRadf open jam Cover open jam in the read ready status11/04 09/05 Symbols used in the checklist Periodic MaintenanceRewriting ROM Firmware Updating Component side Soldered side Assembly of PC BoardCircuit Diagram2005 2011 Toshiba TEC Corporation All rights reserved 1 MR-3018/3020 Control PC Board CircuitCircuit Diagram / Harness Diagram Circuit Diagram / Harness Diagram Circuit Diagram / Harness Diagram Circuit Diagram / Harness Diagram Circuit Diagram / Harness Diagram 2 MR-3021 11 09/05 09/05 13 09/05 09/05 15 09/05 3 MR-3022 17 09/05 09/05 19 09/05 09/05 21 09/05 Circuit Diagram / Harness Diagram