Toshiba MR-3018 service manual Troubleshooting for Mechanical Errors

Page 87

6.Troubleshooting

6.1Troubleshooting for Mechanical Errors

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

YESFlatten the original and set it again

NO

Separation roller is dirty?

YESClean the roller with alcohol

NO

Replace the separation rollers with new ones

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

YESUse originals with permissible thickness.

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

NO

Pickup roller and feed roller are dirty?

YESClean 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?

YESAdjust the height of the left hinge

NO

Transport rollers are dirty?

YESClean 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?

YESMove 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?

YESClean the glass with a dry/squeezed cloth

NO

Check the scanner unit

6

June 2005 © TOSHIBA TEC

MR-3018 Troubleshooting

6 - 1

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Contents MR-3018 Toshiba TEC Corporation Page Page Contents Circuit Diagram / Harness Diagram Specification MR-3018 Specification June 2005 Toshiba TEC Main Components General DescriptionFLP2 Sectional ViewElectric Parts Layout Motors Symbols and Functions of Various ComponentsREQ ACK DF-REQ DF-ACK SCAN-ST CNT CPU Diagram of Signal BlocksDescription of Interface Signals Outline Description of OperationsOriginal feed motor drive section Read motor drive section Original exit/reverse motor drive section Original tray width sensor Original Size DetectionA4 series width sizes mixed at A3 / A4 standard LT series ORG-SRS Flow Chart ON? YES Certain period YES Gate solenoid on Transport request Signal received? Exposure and scanning start Original END 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 Disassembly and AssemblyRear cover Pin Dial Clip Left cover Remove 2 screws and take off the left cover Original tray Take off the front cover Original reverse tray Take off the original tray Roller Pickup roller PM Take off the paper feeder unit Slide the pulley and remove 1 pin Separation roller PM Take off the paper feeder unit Feeder lower guide Take off the original tray Registration roller Take off the feeder lower guide Exit guide Pre-reading lower guide Connector Flange Upper guide Reverse registration Motor / Motor drive section Spring Remove 3 screws and then take off the bracket Spring Bushing Harness clamp Ring Bracket Screw Original exit/reverse motor M3 Solenoid Mark-off line Sensor/switch Remove 2 screws and take off the holder Jam access cover sensor Original empty sensor Actuator Connector Holder Original exit/reverse sensor Opening/closing PC Board Hinge stopper OthersMR-3018 Disassembly and Assembly Adjustment of Position AdjustmentMR-3018 Adjustment June 2005 Toshiba TEC Loosen the hinge screws at the front side Match the screw hole positions June 2005 Toshiba TEC MR-3018 Adjustment ~0.5mm 0mm Adjustment of HeightTurn it counterclockwise Heightened 17 Chart Original Adjustment of SkewShift the aligning plate in the direction of + MR-3018 Adjustment June 2005 Toshiba TEC 24 Chart Original Adjustment of the Leading Edge PositionMR-3018 Adjustment June 2005 Toshiba TEC Adjustment of Horizontal Position Adjustment of Copy Ratio Adjustment of Radf Opening/Closing Sensor MR-3018 Adjustment June 2005 Toshiba TEC Troubleshooting for Mechanical Errors TroubleshootingTroubleshooting for Electrical Errors YES MR-3018 Troubleshooting June 2005 Toshiba TEC Periodic Maintenance Maintenance and Rewriting ROMRewriting ROM Firmware Updating Assembly of PC Board Circuit Diagram / Harness DiagramCircuit DiagramOriginal tray sensor Original tray width sensor Control PC Board Circuit MR-3018 Circuit Diagram / Harness Diagram MR-3018 Circuit Diagram / Harness Diagram June 2005 Toshiba TEC MR-3018 Circuit Diagram / Harness Diagram June 2005 Toshiba TEC MR-3018 Circuit Diagram / Harness Diagram
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