Toshiba MR-2020, MR-2017 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 ADF 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

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MR-2017/2020

 

TROUBLESHOOTING

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Contents MR-2017/2020 Trademarks 09/12 Page Contents Control PC Board Circuit MR-2017 MR-2020 SpecificationSpecification Location Components Main ComponentsOriginal exit tray Intermediate transfer roller Sectional ViewR4 R2 R3 R1 Original tray Registration rollerSW M1 SOL S7 ADF Electric Parts LayoutADF control PC board ADF Controls the ADF Board Symbols and Functions of Various ComponentsSymbol Name Function Diagram of Signal Blocks RxD Description of Interface SignalsFeed motor drive section Read motor drive section Description of OperationsOriginal feed motor drive section Read motor Exit roller Pre-reading roller Read motor drive sectionOriginal width size Orange Yellow Gray Original Size DetectionEmpty sensor ON? Power on Standby ADF jam accessCover OPEN? All sensors OFF? Read motor rotates OriginalCertain period Time passed? Sent level High Scanning start signalCertain period Jam Read motor stops Original exitDescription of Circuit Drive Circuit for Read Motor Reset Circuit Description of Operations Front cover CoverFront cover Pin Jam access coverRear cover Rear coverLeft cover Jam access coverLeft cover Bushing Screw Original trayClip RollerPaper feeder unit Clip Pickup roller Pickup roller PMFeed roller PM ShaftShaft PulleySeparation roller unit Separation roller PMStay Feeder lower guideOriginal tray Exit roller Registration rollerExit roller Exit guidePre-reading guide Pre-reading guideIntermediate transport roller Hinge pinScrew Bushing ConnectorPre-reading roller Post-reading rollerHolder Flange Bearing Bushing Pulley RingBushing Ring Pulley Timing belt Upper guide Spring Motor / Motor drive sectionOriginal feed motor M1 Bracket White Original feed motor drive sectionHarness clamp Ring BushingRead motor Read motor M2Bracket Read motor drive sectionSpring Screw Tensioner Ring Mark-off line SolenoidOriginal pickup solenoid SOL Original pickup solenoidOriginal tray width sensor S2 Sensor/switchOriginal tray sensor Original tray sensor S1Metal plate cover Jam access cover sensor S7Original empty sensor S3 Original empty sensor Original registration sensor Original registration sensor S4Original exit/reverse sensor S6 Read sensor S5Radf opening/closing sensor ADF opening/closing sensor S8White Red Black Jam access cover opening/closing switch SWBracket ADF board PC BoardADF control PC board ADF board Hinge stopper OthersChecking Adjustment of PositionAdjustment Adjustment Match the screw hole positions Install the right-hand hinge screw at the rear Place the platen sheet on the original glass ~0.2mm 0mm Adjustment of HeightTurn it clockwis 19 Chart Original Adjustment of SkewAdjustment 23 Chart Original Adjustment of the Leading Edge PositionAdjustment of Horizontal Position Adjustment of Copy Ratio Adjustment of ADF Opening/Closing Sensor Troubleshooting for Mechanical Errors TroubleshootingTroubleshooting for Electrical Errors Jam not reaching the read sensor Feed signal reception jamJam Jam not reaching the original registration sensorStop jam at the exit sensor Radf jam access cover openStop jam at the registration sensor Stop jam at the read sensorCover open jam in the read ready status Troubleshooting Coating Periodic MaintenanceCleaning Lubrication/Coating Replacement Operation check RemarksRewriting ROM Firmware Updating Assembly of PC Board Circuit Diagram / Harness DiagramPWA-F-DLG-644 Circuit DiagramPWA-F-DLG-643 Control PC Board Circuit Circuit Diagram / Harness Diagram Circuit Diagram / Harness Diagram Circuit Diagram / Harness Diagram Circuit Diagram / Harness Diagram Circuit Diagram / Harness Diagram Circuit Diagram / Harness Diagram

MR-2020, MR-2017 specifications

The Toshiba MR-2017 and MR-2020 are innovative microwave ovens that exemplify Toshiba's commitment to advanced cooking technology and user-friendly design. Designed for modern kitchens, these models combine efficiency and versatility, making them ideal for a wide range of cooking tasks.

The MR-2017 features a compact design perfect for small spaces without compromising on power and functionality. It typically boasts a 700-watt microwave output, providing sufficient energy for heating and cooking various dishes. One of its standout features is the one-touch cooking options, which allow users to select heating times and power levels with a simple press of a button. This functionality is particularly advantageous for busy individuals looking to save time in meal preparation.

On the other hand, the MR-2020 offers enhanced capabilities with a slightly larger capacity and a higher wattage output of 800 watts. This model not only heats food but also includes grill and convection settings, allowing for more versatile cooking methods. With the grilling function, users can achieve crispy textures similar to conventional ovens, while convection cooking promotes even heat distribution for consistent results.

Both models are equipped with advanced technology such as the smart sensor cooking feature. This technology automatically calculates the optimal cooking time based on the food type and quantity, ensuring perfectly cooked meals without any guesswork. Safety is also a priority, with child safety locks that prevent accidental operation, making them suitable for families.

The control panel on both the MR-2017 and MR-2020 is designed for ease of use, featuring intuitive buttons and a clear display, making it accessible for all users. Additional features include defrost settings for quick thawing and various pre-set cooking modes tailored for specific food types like popcorn, pizza, and baked potatoes.

In conclusion, the Toshiba MR-2017 and MR-2020 microwave ovens blend advanced cooking technologies with user-friendly features, catering to diverse culinary needs. Their combination of power, safety, and convenience makes them a valuable addition to any kitchen, ensuring that delicious meals are just minutes away. Whether you're reheating leftovers or trying out new recipes, these models are built to deliver performance and satisfaction.
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