Toshiba MR-2020, MR-2017 service manual 09/12

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General Precautions for Installation/Servicing/Maintenance for the MR-2017/2020

The installation and service should be done by a qualified service technician.

1)When installing the MR-2017/2020 to the Equipment, be sure to follow the instructions described in the “Unpacking/Set-Up Procedure for the MR-2017/2020” booklet which comes with each unit of the MR-2017/2020.

2)The MR-2017/2020 should be installed by an authorized/qualified person.

3)The equipment must be grounded for safety.

4)Before starting installation, servicing or maintenance work, be sure to turn OFF and unplug the equipment first.

5)The equipment shall be installed near the socket outlet and shall be easily accessible.

6)Be sure to fix and plug in the power cable securely after the installation so that no one trips over it.

7)Unplug the power cable and clean the area around the prongs of the plug and socket outlet once a year or more. A fire may occur when dust lies on this area.

8)The MR-2017/2020 should be grounded to the specified positions on the mochine frame.

9)When servicing or maintaining the MR-2017/2020, be careful about the rotating or operation sec- tions such as gears, pulleys, sprockets, cams, belts, etc.

10)Reassembly of disassembled parts is the reverse of the disassembly unless otherwise noted in this manual or other related documents.

Care should be taken that small parts, such as screws, washers, pins, E-rings, star washers, har- nesses are not installed in the wrong places.

11)Basically, the machine should not be operated with any parts removed or disassembled.

12)Delicate parts for preventing safety hazard problems (such as switches, sensors, etc. if any) should be handled/installed/adjusted correctly.

13)Use suitable measuring instruments and tools.

14)During servicing or maintenance work, be sure to check the serial No. plate and other cautionary labels (if any) to see if they are clean and firmly fixed. If not, take appropriate actions.

15)The PC board must be stored in an anti-electrostatic bag and handled carefully using a wristband, because the ICs on it may be damaged due to static electricity. Before using the wrist band, pull out the power cord plug of the equipment and make sure that there is no uninsulated charged objects in the vicinity.

16)For the recovery and disposal of used MR-2017/2020, consumable parts and packing materials, fol- low the relevant local regulations/rules should be followed.

17)After completing installation, servicing and maintenance of the MR-2017/2020, return the MR-2017/ 2020 to its original state, and check operation.

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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 LayoutSymbols and Functions of Various Components Symbol Name FunctionADF control PC board ADF Controls the ADF Board 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 DetectionPower on Standby ADF jam access Cover OPEN? All sensors OFF?Empty sensor ON? Original Certain period Time passed?Read motor rotates Scanning start signal Certain periodSent level High Jam Read motor stops Original exitDescription of Circuit Drive Circuit for Read Motor Reset Circuit Description of Operations Cover Front coverFront cover Pin Jam access coverRear cover Rear coverJam access cover Left coverLeft cover Bushing Screw Original trayRoller Paper feeder unitClip Clip Pickup roller Pickup roller PMFeed roller PM ShaftShaft PulleySeparation roller unit Separation roller PMFeeder lower guide Original trayStay Exit roller Registration rollerExit roller Exit guidePre-reading guide Pre-reading guideIntermediate transport roller Hinge pinScrew Bushing ConnectorPre-reading roller Post-reading rollerFlange Bearing Bushing Pulley Ring Bushing Ring Pulley Timing beltHolder Upper guide Motor / Motor drive section Original feed motor M1Spring Bracket White Original feed motor drive sectionHarness clamp Ring BushingRead motor Read motor M2Read motor drive section SpringBracket Screw Tensioner Ring Mark-off line SolenoidOriginal pickup solenoid SOL Original pickup solenoidOriginal tray width sensor S2 Sensor/switchOriginal tray sensor Original tray sensor S1Jam access cover sensor S7 Original empty sensor S3Metal plate cover Original empty sensor Original registration sensor Original registration sensor S4Original exit/reverse sensor S6 Read sensor S5Radf opening/closing sensor ADF opening/closing sensor S8Jam access cover opening/closing switch SW BracketWhite Red Black PC Board ADF control PC board ADF boardADF 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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