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Toshiba MR-3022, MR-3018 service manual Diagram of Signal Blocks

Models: MR-3018 MR-3022

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2.5Diagram of Signal Blocks

Equipment	RADF
RxD		Driver	Original feed motor (M1)
TxD		Driver	Read motor (M2)
REQ		Driver	Original exit/reverse motor (M3)
ACK		Driver	Fan motor (M4)
DF-REQ		Driver	Original pickup solenoid (SOL1)
DF-ACK		Driver	Gate solenoid (SOL2)
SCAN-ST			Original tray sensor (S1)
CNT			Original tray sensor (S1)
CNT			Original tray width sensor (S2)
			Original tray width sensor (S2)
			Original empty sensor (S3)
	CPU		Original length detection sensor (S4)
DC 24V			Original registration sensor (S5)
DC 24V			Original width detection sensor-1 (S6)
DC 5V			Original width detection sensor-1 (S6)
DC 5V			Original width detection sensor-2 (S7)
			Original width detection sensor-2 (S7)
			Original intermediate transport sensor (S8)
			Read sensor (S9)
	Reset IC		Original exit/reverse sensor (S10)
	Reset IC		Jam access cover sensor (S11)
			Jam access cover sensor (S11)
			RADF opening/closing sensor (S12)
Downlad jig			Jam access cover opening/closing switch (SW1)
			Jam access cover opening/closing switch (SW1)
			Fig. 2-4

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© 2005 - 2011 TOSHIBA TEC CORPORATION All rights reserved	MR-3018/3020/3021/3022
	GENERAL DESCRIPTION

2 - 5

09/05

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Toshiba MR-3022, MR-3018 service manual Diagram of Signal Blocks

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 Location Components Main Components06/09 Sectional View S12 Electric Parts LayoutS11 S7 S6 S5 S8S4 S10Sensors and Switches Symbols and Functions of Various ComponentsMotors SolenoidDiagram of Signal Blocks Description of Interface Signals Feed motor drive section OutlineRead motor drive section Original feed motor drive section Intermediate transfer roller Read motor drive sectionGate solenoid Reverse flap Exit/reverse motor Original exit/reverse motor drive sectionReverse Exit/reverse rollerOriginal tray width sensor Original Size Detection= high level Open = low level Short Original width sizeA4 series width sizes mixed at B4 / B5 standard A4 series width sizes mixed at A3 / A4 standardA4 series width sizes mixed at A4-R standard A4 series width sizes mixed at B5-R standardLT series width sizes mixed at LD / LT standard LT series ORG-SRSLT series width sizes mixed at LG / LT-R standard Cover OPEN? All sensors OFF? Power on Standby Radf jam accessEmpty sensor ON? JamCertain period Time passed? OriginalRead motor rotates Registration roller rotates. Feed motor rotates reverseCertain period Scanning start signalDuplex? Sent level HighJam Read sensor OFF? Original exit/reverse Sensor ON?Certain period Time passed? Read motor stops Certain period Time passed?Gate solenoid on Scanning start signal sent level Low Scanning completedJam Original exit/reverse motor and read motor stop Transport request Signal received?Read motor and exit/reverse motor rotate at requested speed Scanning completed Exposure and scanning start OriginalSensor OFF? Original intermediate Transport sensor ON? Original exit/reverse motor and read motor stopJam 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 Front cover CoverFront cover Rear cover Jam access coverRear cover PinRemove 1 screw and the hinge pin Take off the jam access cover by sliding itLeft cover Left coverOriginal tray Original reverse tray Original reverse trayPaper feeder unit RollerRemove 1 clip and slide 2 bushings Take off the paper feeder unitFeed roller PM Pickup roller PMShaft Clip Pickup rollerPull out the shaft and take off the feed roller Slide the pulley and remove 1 pinPulley ShaftSeparation roller PM Feeder lower guide Take off the jam access guideStay Exit/reverse roller Registration rollerExit/reverse roller Exit guideIntermediate transport roller Pre-reading guideHinge pin Pre-reading guidePre-reading roller ConnectorPost-reading roller Screw BushingBushing Flange Bearing BushingHolder Platen guideUpper guide Reverse registration rollerPost-reading roller RingRoller Open the RADF. Take off the reverse regis- tration rollerFan motor M4 Motor / Motor drive sectionRead motor M2 Read motorSpring Read motor drive sectionSpring Harness clampTake off 1 timing belt and 4 bushings Remove 3 screws and then take off the bracketTiming belt Screw Tensioner RingOriginal feed motor drive section Original feed motor M1Ring Bushing Bracket White Black Take off the timing belt, bushings and pulleyRed 09/01Original exit/reverse motor M3 Disconnect 1 connector from the Radf conOriginal feed motor drive SectionOriginal pickup solenoid SOL1 SolenoidOriginal pickup solenoid BracketMark-off line Gate solenoid SOL2Gate solenoid Original tray width sensor S2 Sensor/switchRelease 2 latches and take off the original tray sensor Original tray sensor S1Original tray sensor Jam access cover sensor Jam access cover sensor S11Original empty sensor S3 Metal plate coverOriginal length detection sensor S4 Remove 2 screws and take off the bracketOriginal empty sensor Original length detection sensor Take off the feeder lower guide Feeder lower guide Original registration sensor S5Original width detection sensor-1 S6 Original width detection sensor-2 S7Take off the pre-reading upper guide Pre-reading guide Read sensor S9Original intermediate transport sensor S8 Original exit/reverse sensor S10Original exit/reverse sensor Take off the original jam access cover Original jam access cover opening/closing switch SW1Radf opening/closing sensor S12 Disconnect 3 terminals. Remove 1 screwRadf control PC board ADF board PC BoardADF board Hinge stopper OthersRemove 1 screw and then take off the hinge StopperDisassembly and Assembly Checking Adjustment of PositionAdjustment 05/12 05/12 Install the bracket on the left-hand hinge Install the right-hand hinge screw at the rearSide MR-3021/3022 only05/12 ~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 Feed signal reception jamJam not reaching the original registration sensor Jam not reaching the read sensorStop jam at the original registration sensor Radf jam access cover open jamStop jam at the read sensor Stop jam at the original exit/reverse sensorCover open jam in the read ready status Radf open jam11/04 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