Toshiba MR-3022, MR-3018 service manual Troubleshooting for Mechanical Errors

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6.TROUBLESHOOTING

6.1Troubleshooting for Mechanical Errors

1)Multiple originals are transported simultaneously Original abnormally curled or folded?

↓ YES→ Flatten the original and set it again

NO

Separation roller is dirty?

↓ YES→ Clean the roller with alcohol

NO

Replace the separation rollers with new ones

2)Original is not transported to registration roller Original thicker than specified?

⎟YES→ Use originals with permissible thickness.

↓Place thick originals manually on the platen cover to make a copy

NO

Pickup roller and feed roller are dirty?

↓YES→ Clean the rollers with alcohol

NO

Transport power of pickup roller and feed roller is weak?

YES

Replace the rollers with new ones

3)Leading edge of original is skewed

Front and rear protrusions at bottom of RADF are out of contact with glass?

↓YES→ Adjust the height of the left hinge

NO

Transport rollers are dirty?

↓YES→ Clean the rollers with alcohol

NO

Is the right hinge out of place?

YES

Make a copy and adjust the position of the hinge

4)Edges of original and copied image are not aligned

Width between slides too wide compared to that of original?

↓YES→ Move the slides so that they contact the edges of the original

NO

Check the scanner adjustment

5)Black streaks appear on copied image

ADF original glass is dirty?

↓YES→ Clean the glass with a dry/squeezed cloth

NO

Check the scanner unit

6

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

6 - 1

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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 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 Feed motor drive section OutlineRead 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 width sizes mixed at LD / LT standard LT series ORG-SRSLT 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 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 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 Feeder lower guide Take off the jam access 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 solenoidMark-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 Metal plate cover Jam access cover sensor S11Jam access cover sensor Original empty sensor S3Original length detection sensor S4 Remove 2 screws and take off the bracketOriginal 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 S12Radf control PC board ADF board PC 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 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

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