Toshiba MR-2017, MR-2020 service manual Original feed motor drive section

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3.1.2Original feed motor drive section

Original feed motor

Oneway clutch

Pickup roller

Feed roller

Oneway clutch

Separation roller

Pickup

Registration roller

Feed

Fig. 3-2

When an original is placed on the original tray and the RADF receives a feed request signal from the equipment, the feeding of the original is started.

The original empty sensor detects the presence of the original, and then the pickup roller is lowered by the drive from the original pickup solenoid.

The Original feed motor rotates, and the pickup roller and the feed roller then rotate in a normal direc- tion (shown in a solid line in the figure) to guide the original into the transport path. Then the original is transported to the registration roller to be aligned.

The original aligned with the registration roller is then transported by the reverse rotation of the Original feed motor (shown in a dotted line in the figure).

A one-way clutch is installed inside of each gear of the feed roller and the registration roller, so these gears will not be driven in a reverse rotation.

When the original empty sensor detects that there is no original on the original tray, the original pickup solenoid is turned OFF and the pickup roller is raised.

The original pickup solenoid is the one can operate both suction and recovery.

MR-2017/2020

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DESCRIPTION OF OPERATIONS

 

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Contents MR-2017/2020 Trademarks 09/12 Page Contents Control PC Board Circuit Specification MR-2017 MR-2020Specification Main Components Location ComponentsSectional View R4 R2 R3 R1Original tray Registration roller Original exit tray Intermediate transfer rollerElectric Parts Layout SW M1 SOL S7 ADFSymbol Name Function Symbols and Functions of Various ComponentsADF control PC board ADF Controls the ADF Board Diagram of Signal Blocks Description of Interface Signals RxDDescription of Operations Feed motor drive section Read motor drive sectionOriginal feed motor drive section Read motor drive section Read motor Exit roller Pre-reading rollerOriginal Size Detection Original width size Orange Yellow GrayCover OPEN? All sensors OFF? Power on Standby ADF jam accessEmpty sensor ON? Certain period Time passed? OriginalRead motor rotates Certain period Scanning start signalSent level High Original exit Jam Read motor stopsDescription of Circuit Drive Circuit for Read Motor Reset Circuit Description of Operations Front cover CoverFront cover Jam access cover Rear coverRear cover PinLeft cover Jam access coverLeft cover Original tray Bushing ScrewPaper feeder unit RollerClip Pickup roller PM Feed roller PMShaft Clip Pickup rollerPulley ShaftSeparation roller PM Separation roller unitOriginal tray Feeder lower guideStay Registration roller Exit rollerExit guide Exit rollerPre-reading guide Intermediate transport rollerHinge pin Pre-reading guideConnector Pre-reading rollerPost-reading roller Screw BushingBushing Ring Pulley Timing belt Flange Bearing Bushing Pulley RingHolder Upper guide Original feed motor M1 Motor / Motor drive sectionSpring Original feed motor drive section Harness clampRing Bushing Bracket WhiteRead motor M2 Read motorSpring Read motor drive sectionBracket Screw Tensioner Ring Solenoid Original pickup solenoid SOLOriginal pickup solenoid Mark-off lineSensor/switch Original tray width sensor S2Original tray sensor S1 Original tray sensorOriginal empty sensor S3 Jam access cover sensor S7Metal plate cover Original registration sensor S4 Original empty sensor Original registration sensorRead sensor S5 Original exit/reverse sensor S6ADF opening/closing sensor S8 Radf opening/closing sensorBracket Jam access cover opening/closing switch SWWhite Red Black ADF control PC board ADF board PC BoardADF board Others Hinge stopperAdjustment of Position CheckingAdjustment Adjustment Match the screw hole positions Install the right-hand hinge screw at the rear Place the platen sheet on the original glass Adjustment of Height ~0.2mm 0mmTurn it clockwis Adjustment of Skew 19 Chart OriginalAdjustment Adjustment of the Leading Edge Position 23 Chart OriginalAdjustment of Horizontal Position Adjustment of Copy Ratio Adjustment of ADF Opening/Closing Sensor Troubleshooting Troubleshooting for Mechanical ErrorsTroubleshooting for Electrical Errors Feed signal reception jam JamJam not reaching the original registration sensor Jam not reaching the read sensorRadf jam access cover open Stop jam at the registration sensorStop jam at the read sensor Stop jam at the exit sensorCover open jam in the read ready status Troubleshooting Periodic Maintenance Cleaning Lubrication/Coating Replacement Operation checkRemarks CoatingRewriting ROM Firmware Updating Circuit Diagram / Harness Diagram Assembly of PC BoardCircuit Diagram PWA-F-DLG-644PWA-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.

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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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