Toshiba MR-3011 Service Manual

Reversing automatic document feeder

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File No. 31100005

Table of Contents

Troubleshooting

Summary of Contents for Toshiba MR-3011

Page 1 File No. 31100005...
Page 3 General Precautions for Installation/Servicing/Maintenance for the MR-3011/3012 The installation and service should be done by a qualified service technician. 1. When installing the MR-3011/3012 to the Plain Paper Copier, be sure to follow the instructions described in the "Unpacking/Set-Up Procedure for the MR-3011/ 3012"...
Page 4 3011/3012 or insert a gaggers underneath the MR-3011/3012 as shown in the following figures. 1. Use pieces of the corrugated board came in the package of MR-3011/3012 or equivalent as the gaggers. Insert the gaggers as shown in the figure, then close the MR-3011/3012.
Page 5: Table Of Contents
10.1 Input Circuits for Original Length Sensor, Read Sensor and Reverse Sensor ................10-1 10.2 Irruptive Current Control Circuit ............. 10-2 10.3 Drive Circuit for Read Motor ..............10-3 10.4 Drive Circuit for Reverse Motor .............. 10-4 October 2000 © TOSHIBA TEC MR-3011/3012 CONTENTS...
Page 6 12.2 Separation Roller ................... 12-2 12.3 Reverse Solenoid .................. 12-3 12.4 Drive System ..................12-4 12.4.1 Fan motor ..................12-4 12.4.2 Read motor(MR-3011) ..............12-5 12.4.3 Read motor(MR-3012) ..............12-7 12.4.4 RADF open/close switch ..............12-8 12.4.5 Feed motor ..................12-9 12.4.6 Reverse motor ...................
Page 7 14. ASSEMBLY OF PC BOARD ................ 14-1 15. PERIODIC MAINTENANCE ................ 15-1 16. CIRCUIT DIAGRAM / HARNESS DIAGRAM ..........16-1 16.1 Circuit Diagram (MR-3011) ..............16-1 16.2 Circuit Diagram (MR-3012) ..............16-2 16.3 Control PC Board Circuit ............... 16-3 16.4 Harness Diagram (MR-3011)..............16-4 16.5 Harness Diagram (MR-3012)..............
Page 8: Specification
Power Consumption Dimensions W557 × D497.3 × H165 (W22 inches × D19.6 inches × H6.5inches) Weight Approx.13.6kg or 29.9lb *Specification and appearance are subject to change without notice due to enhancedment of product quality. October 2000 © TOSHIBA TEC MR-3011/3012 SPECIFICATION...
Page 9: Configuration
• Tray sensor Drive/control section • Feed motor • Read motor • Reverse motor • Reverse solenoid • RADF open/close sensor • RADF open/close switch • Jam access cover switch • PC board October 2000 © TOSHIBA TEC MR-3011/3012 CONFIGURATION...
Page 10: Sectional View And Drive System
SECTIONAL VIEW AND DRIVE SYSTEM 3.1 Sectional View October 2000 © TOSHIBA TEC MR-3011/3012 SECTIONAL VIEW...
Page 11: Drive System
Motor rotating clockwise to transport original Feed motor rotating counterclockwise (as seen from the front side) Feed motor Rear side One-way clutch (slipped) Pickup roller (Down) Front side Motor rotating counterclockwise to transport original October 2000 © TOSHIBA TEC MR-3011/3012 SECTIONAL VIEW...
Page 12 Reverse motor rotating counterclockwise Rear side for back side registration and original discharge. Reverse roller Exit roller Front side Read motor rotating counterclockwise One-way gear to transport mixed sized originals. Read roller October 2000 © TOSHIBA TEC MR-3011/3012 SECTIONAL VIEW...
Page 13: Symbols And Layout Of Electrical Parts / Diagram Of Signal Blocks
Drives pickup roller, feed roller and registration DC motor (Feed motor) roller FMOT Cools down read motor Fan motor (Fan motor) Solenoid Symbol Name Function Remarks RSOL Switches flapper DC solenoid RSOL (Reverse solenoid) October 2000 © TOSHIBA TEC MR-3011/3012 SYMBOLS...
Page 14 (Read sensor) scanning position optical sensor RVR-SNS Sensor to detect original at reverse position Semiconductive RVRS (Reverse sensor) optical sensor PC board Symbol Name Function Remarks PWA-LGC-RADF Drives feeding and transportation PWA-DF (PC board) October 2000 © TOSHIBA TEC MR-3011/3012 SYMBOLS...
Page 15: Layout Of Electrical Parts
SIZE 2 Original width sensor 2 SIZE 3 Original width sensor 3 TRYS Tray sensor OPNS RADF open/close sensor MCLK Feed motor clock sensor LENGS Orignal length sensor READS Read sensor RVRS Reverse sensor October 2000 © TOSHIBA TEC MR-3011/3012 SYMBOLS...
Page 16: Diagram Of Signal Blocks
SGND DF-ACK DF-REQ RADFCNT RDMOT RDMOT Driver DC+24V Irruptive RVMOT DC+24V RVMOT current control (Supplied from copier) circuit P+5V P+5V Supplied from copier DC+5V DC+5V Supplied from copier Available only for MR-3011 October 2000 © TOSHIBA TEC MR-3011/3012 SYMBOLS...
Page 17: Description Of Interface Signals
Data communication (RxD and TxD) between the scanner and RADF has adopted the serial communication system which does not allow checking using testing devices to see whether the signals are sent/received properly in the field. RADF Copier DF-ACK DF-REQ October 2000 © TOSHIBA TEC MR-3011/3012 SYMBOLS...
Page 18: Description Of Operations
The feed motor is stopped after the original length sensor is turned OFF. October 2000 © TOSHIBA TEC MR-3011/3012 DESCRIPTION OF OPERATION...
Page 19 Completion of pre-feeding operation After the registration sensor has detected the leading edge of the original. The feed motor transports the original for a certain number of pulses, performs registration and stops. October 2000 © TOSHIBA TEC MR-3011/3012 DESCRIPTION OF OPERATION...
Page 20 The read motor starts to rotate forward, it rotates the read roller and exit roller to start scanning the next original. Original discharge is completed when the trailing edge of the original has passed the exit roller. October 2000 © TOSHIBA TEC MR-3011/3012 DESCRIPTION OF OPERATION...
Page 21 After the exit sensor is turned OFF, the feed motor rotates for a certain number of pulses till the original is completely discharged. (12) Completion of original discharge (next original) The read motor is stopped when the next original is completely discharged into the receiving tray. October 2000 © TOSHIBA TEC MR-3011/3012 DESCRIPTION OF OPERATION...
Page 22: Duplex Feeding
The feed motor starts to rotate in reverse and the read motor starts to rotate forward to start feeding the original waiting in front of the registration roller and the read roller. The feed motor is stopped after the original length sensor is turned OFF. October 2000 © TOSHIBA TEC MR-3011/3012 DESCRIPTION OF OPERATION...
Page 23 Scanning of the front side of original is completed when the trailing edge of the original being scanned has passed the scanning position. October 2000 © TOSHIBA TEC MR-3011/3012 DESCRIPTION OF OPERATION...
Page 24 The read motor and reverse motor rotate for a certain number of pulses and stop after the read sensor is turned ON. (The leading edge of the original reaches the pre-back side scanning position.) October 2000 © TOSHIBA TEC MR-3011/3012 DESCRIPTION OF OPERATION...
Page 25 The read motor and reverse motor are stopped after the reverse sensor is turned OFF to complete transporta- tion of the back side of the original. The reverse flapper is switched to the exit side by turning OFF the reverse solenoid. October 2000 © TOSHIBA TEC MR-3011/3012 DESCRIPTION OF OPERATION...
Page 26 The reverse flapper is switched toward the reverse position by turning ON the reverse solenoid to start the scanning of the front side of next original. The reverse discharge operation is completed when the trailing edge of the original has passed the exit roller. October 2000 © TOSHIBA TEC MR-3011/3012 DESCRIPTION OF OPERATION...
Page 27 After the reverse sensor has detected the leading edge of the original, the reverse motor transports the original for a certain number of pulses, performs registration and stops. October 2000 © TOSHIBA TEC MR-3011/3012 DESCRIPTION OF OPERATION 5-10...
Page 28 The scanning of the back side of the original is completed when the trailing edge of the next original has passed the scanning position. October 2000 © TOSHIBA TEC 5-11 MR-3011/3012 DESCRIPTION OF OPERATION...
Page 29 The reverse motor stops after the reverse sensor has been turned OFF. (24) Exit sensor OFF After the exit sensor has been turned OFF, read motor rotates for a certain number of pulses till the next original has completely discharge. October 2000 © TOSHIBA TEC MR-3011/3012 DESCRIPTION OF OPERATION 5-12...
Page 30 (25) Completion of reverse discharge operation for next original The read motor is stopped when the next original is completely discharged into the original receiving tray to terminate the reverse discharge operation. October 2000 © TOSHIBA TEC 5-13 MR-3011/3012 DESCRIPTION OF OPERATION...
Page 31: Single Side Feeding (For Mixed Sized Originals)
The feed motor stops and the read motor rotates for a certain number of pulses and stops when the read sensor is turned ON. (The leading edge of the original reaches the pre-scanning position) October 2000 © TOSHIBA TEC MR-3011/3012 DESCRIPTION OF OPERATION...
Page 32 The read motor rotates for a certain number of pulse and stops after the original length sensor has been turned OFF. (The trailing edge of the original reaches the pre-reverse position.) October 2000 © TOSHIBA TEC 5-15 MR-3011/3012 DESCRIPTION OF OPERATION...
Page 33 After the registration sensor has detected the leading edge of the original, the feed motor transports the original for a certain number of pulses, performs registration and stops. October 2000 © TOSHIBA TEC MR-3011/3012 DESCRIPTION OF OPERATION 5-16...
Page 34 The feed motor stops and the read motor rotates for a certain number of pulses and stops when the read sensor has been turned ON. (The leading edge of the next original reaches the pre-scanning position.) October 2000 © TOSHIBA TEC 5-17...
Page 35 The read motor rotates for a certain number of pulses and stops after the read sensor has been turned OFF. October 2000 © TOSHIBA TEC MR-3011/3012 DESCRIPTION OF OPERATION...
Page 36 (18) Completion of scanning operation for next original Scanning is completed when the trailing edge of the next original has passed the scanning position. October 2000 © TOSHIBA TEC 5-19 MR-3011/3012 DESCRIPTION OF OPERATION...
Page 37 None: (Duplex feeding of mixed-sized originals) The reverse mechanism detects the size of the mixed-sized originals consisting of A4-R/FOLIO or LT-R/ LG, then the scanning operation is started. October 2000 © TOSHIBA TEC MR-3011/3012 DESCRIPTION OF OPERATION 5-20...
Page 38: Jamming
• Jam pulse setting The setting value of an added +30mm to the distance till the longest original (LD) passes the read sensor is set as the jam pulse. October 2000 © TOSHIBA TEC MR-3011/3012 JAMMING...
Page 39: Exit Jam
The setting value of an added +30mm to the distance from the position where the read sensor is turned OFF till the reverse sensor is turned OFF is set as the jam pulse. October 2000 © TOSHIBA TEC MR-3011/3012 JAMMING...
Page 40 • Jam pulse setting The setting value of an added +30mm to the distance till the longest original (LD) passes the reverse sensor is set as the jam pulse. October 2000 © TOSHIBA TEC MR-3011/3012 JAMMING...
Page 41: Original Size Detection
Then the motor sends the measured value to the copier. Original size: LT or smaller 1) Timing to determine width 2) Timing to determine size along feeding direction October 2000 © TOSHIBA TEC MR-3011/3012 SIZE DETECTION...
Page 42 Size: B5-R or larger 1) Timing to determine width 2) Timing to determine size along feeding direction October 2000 © TOSHIBA TEC MR-3011/3012 SIZE DETECTION...
Page 43 (Widthwise (Feeding sensor 1 sensor 2 sensor 3 detected direction) direction) ON/OFF ON/OFF ON/OFF 8.5 × 8.5 ON/OFF ON/OFF ON/OFF ON/OFF COMPUTER ON/OFF ON/OFF ON/OFF ON/OFF ON/OFF ON/OFF October 2000 © TOSHIBA TEC MR-3011/3012 SIZE DETECTION...
Page 44: Method Of Original Size Detection (For Mixed Sized Original)
The size along the feeding direction of B5-R or smaller originals is determined as with other standard sized originals. (reverse operation is performed after the size is determined.) 1) Timing to determine the width 2) Timing to determine the size along the feeding direction October 2000 © TOSHIBA TEC MR-3011/3012 SIZE DETECTION...
Page 45: Relation Between Status Of Sensor And Original Size (For Mixed Sized Originals)
Original size Original Original Original Original Original Tray data data width width width length size sensor (Widthwise (Feeding sensor 1 sensor 2 sensor 3 sensor detected direction) direction) Threshould size of feeding direction October 2000 © TOSHIBA TEC MR-3011/3012 SIZE DETECTION...
Page 46: Flow Chart
8.1 Power ON Completion of Discharge for Last Original Carried Out Power ON Standby Cover opened? All sensors OFF? Initialization started Initialization completed? Empty sensor Feed signal “H” level? Standby (Feeding Operation) October 2000 © TOSHIBA TEC MR-3011/3012 FLOW CHART...
Page 47 Switchback completed? Separation completed? Transport signal “H” level? Ready for feeding? Duplex mode signal Feeding “H” level? operation started Feeding operation (Scanning completed? two sides of (Scanning original) one side of original) October 2000 © TOSHIBA TEC MR-3011/3012 FLOW CHART...
Page 48 Scanning of one side started Next original is on tray? Ready for Scanning separation? completed? Last original carried out? (Separation) Standby October 2000 © TOSHIBA TEC MR-3011/3012 FLOW CHART...
Page 49 Reverse discharge started Scanning of front side completed? Is there a separated original ? Registration for back side of original started Last original finished Back side registration (Feeding operation) completed? Standby October 2000 © TOSHIBA TEC MR-3011/3012 FLOW CHART...
Page 50 Certain period of time Read motor stopped Feed motor stopped Reverse motor rotates for a certain number of pulses Certain period of time Reverse motor stopped October 2000 © TOSHIBA TEC MR-3011/3012 FLOW CHART...
Page 51 Control Empty sensor Feed motor forward rotation Feed motor rotates for a certain number of pulses Feed motor braked Certain period of time Feed motor stopped Control for pickup roller operation completed October 2000 © TOSHIBA TEC MR-3011/3012 FLOW CHART...
Page 52 Read sensor Feed motor braked Read motor Certain period rotates for a certain of time number of pulses Feed motor Read motor reverse rotation stopped Control for feeding operation completed October 2000 © TOSHIBA TEC MR-3011/3012 FLOW CHART...
Page 53 Feed motor stopped? Feed motor forward rotation Registration sensor ON? Feed motor rotates for a certain number of pulses Feed motor braked Certain period of time Feed motor stopped Control separation completed October 2000 © TOSHIBA TEC MR-3011/3012 FLOW CHART...
Page 54 Certain period Read motor of time stopped Control for Read motor switchback reverse rotation operation completed Read sensor OFF? Read motor rotates for a certain number of pulse October 2000 © TOSHIBA TEC MR-3011/3012 FLOW CHART...
Page 55 Read motor Exit sensor stopped Control for one side scanning completed Read sensor OFF? Read motor rotates for a certain number of pulses Scanning completed October 2000 © TOSHIBA TEC MR-3011/3012 FLOW CHART 8-10...
Page 56 Reverse sensor Reverse motor stopped Read motor rotates for a certain number of pulses Certain period of time Reverse motor forward rotation? Control for front side scanning completed Read sensor OFF? October 2000 © TOSHIBA TEC MR-3011/3012 FLOW CHART 8-11...
Page 57 Reverse motor reverse rotation Read sensor Read motor and reverse motor rotate for a certain number of pulses Read motor and reverse motor stopped Control for reverse feeding completed October 2000 © TOSHIBA TEC MR-3011/3012 FLOW CHART 8-12...
Page 58 Back side registration command Reverse motor reverse rotation Reverse sensor Reverse motor rotates for a certain number of pulses Reverse motor stopped Certain period of time Control for back side registration completed October 2000 © TOSHIBA TEC MR-3011/3012 FLOW CHART 8-13...
Page 59 Reverse motor stopped Certain period of time Reverse motor forward rotation Control for back side scanning completed Read sensor OFF? Read motor rotates for a certain number of pulses Scanning completed October 2000 © TOSHIBA TEC MR-3011/3012 FLOW CHART 8-14...
Page 60 Reverse motor rotates for a certain number of pulses Read motor stopped Last original? Control for reverse discharge completed Feeding operation started Reverse sensor OFF? Reverse motor stopped October 2000 © TOSHIBA TEC MR-3011/3012 FLOW CHART 8-15...
Page 61: Timing Chart
TIMING CHART 9.1 DP1600 Three A4 sheets single-side feeding October 2000 © TOSHIBA TEC MR-3011/3012 TIMING CHART...
Page 67: Description Of Circuits
PTR output voltage to a certain level, and the LED current is adjusted by a voltage-current conversion circuit consisting of IC4, R29, Q5, etc. Each machine has a different D/A output voltage value, which is stored in the volatile memory. October 2000 © TOSHIBA TEC 10-1 MR-3011/3012 DESCRIPTION OF CIRCUITS...
Page 68: Irruptive Current Control Circuit
R114 and Q8 captures the charge stored in C53 right after either the RADF open/close switch or the jam access cover switch is opened, and also controls irruptive current for instantaneous opening/closing of the cover. October 2000 © TOSHIBA TEC 10-2...
Page 69: Drive Circuit For Read Motor
The output voltage of the D/A converter is separated at R85 and R105, and input into IC10-7pin to set the motor current value. The motor current value can be changed by altering the D/A output voltage. October 2000 © TOSHIBA TEC 10-3...
Page 70: Drive Circuit For Reverse Motor
The motor current value is set by separating the output voltage of the D/A converter at R86 and R89, and inputting it into IC9-4 and 24pins. Motor current value can be changed by changing the D/A output voltage. Drive pattern signals..1-2 phase excitation RETM_A RETM_*A RETM_B RETM_*B October 2000 © TOSHIBA TEC 10-4 MR-3011/3012 DESCRIPTION OF CIRCUITS...
Page 71: Drive Circuit For Feed Motor
PREM_PWM is a signal output for speed control, and outputs pulse width modulation waves by comparing the reference clock in the CPU with the output from the clock sensor of the feed motor. October 2000 © TOSHIBA TEC 10-5 MR-3011/3012 DESCRIPTION OF CIRCUITS...
Page 72: Current Control Circuit For Feed Motor
CPU. The level of the lock detection signal is "L" during normal operation and becomes "H" during abnormal operation. October 2000 © TOSHIBA TEC 10-6 MR-3011/3012 DESCRIPTION OF CIRCUITS...
Page 73: Drive Circuit For Reverse Solenoid
IC13. If the clock is not input from CPU due to a system error, the level of IC13-8pin becomes "L" to reset CPU and system operation is stopped. October 2000 © TOSHIBA TEC 10-7 MR-3011/3012 DESCRIPTION OF CIRCUITS...
Page 74: Eeprom Circuit
IC12-2pin (CLK) is a serial clock terminal, and the serial data are sent in synchronization with the clock input which is input to this terminal. IC12-3pin (DI) is a input terminal for serial data and 4pin (DO) is an output terminal for serial data. October 2000 © TOSHIBA TEC 10-8 MR-3011/3012 DESCRIPTION OF CIRCUITS...
Page 75: Description Of Input/Output Signals
This circuit is an input circuit for communication with the scanner. The input is "1" for 5V and "0" for 0V. The logic for the connector area and that for the input port of CPU are the same. October 2000 © TOSHIBA TEC 11-1...
Page 76: Df-Ack Signal, Df-Req Signal And Rxd Signal
This circuit is an output circuit for communication with the scanner. The output is "1" for 5V and "0" for 0V. The logic for the connector area and that for the output port of CPU are the same. October 2000 © TOSHIBA TEC 11-2...
Page 77: Input Circuits For Sensors
Empty sensor CN5.2 SGND EMPS SGND EMP_5 CN5.3 EMPS SGND R106 SGND R107 Q3.2 Q3.1 CN2.3 EMPTY SGND SGND The above are circuits for the input signals from an optical sensor. October 2000 © TOSHIBA TEC 11-3 MR-3011/3012 INPUT/OUTPUT SIGNALS...
Page 78 Original not exist (connector voltage Original exists (connector voltage 1.70V or higher) lower than 1.70V) RVRS (Reverse sensor) Original not exist (connector voltage Original exists (connector voltage 1.69V or higher) lower than 1.69V) October 2000 © TOSHIBA TEC 11-4 MR-3011/3012 INPUT/OUTPUT SIGNALS...
Page 79: Disassembly And Adjustment
(4) Remove 2 clips and slide the feed roller, pickup roller and pickup arm. Pull out the parallel pin and Pickup roller remove the pickup arm, pickup roller and feed roller. Clip Parallel pin Pickup arm Feed roller October 2000 © TOSHIBA TEC 12-1 MR-3011/3012 DISASSEMBLY...
Page 80: Separation Roller
(3) Remove 2 clips and slide 2 bushings to remove the separation roller from the holder. Clip Clip Holder (4) Remove the E-ring, and pull out the shaft from the serapation roller. Separation roller E-ring October 2000 © TOSHIBA TEC 12-2 MR-3011/3012 DISASSEMBLY...
Page 81: Reverse Solenoid
(2) Release 5 latches. Slide the front cover horizon- Latches tally and remove it. Horizontaly Platen unit (3) Open the platen unit. Disconnect one connector and remove 2 screws. Take off the reverse solenoid. Connector October 2000 © TOSHIBA TEC 12-3 MR-3011/3012 DISASSEMBLY...
Page 82: Drive System
Remove one screw and take off the fan motor with the bracket attached. Connector Binding band (3) Remove 2 screws and remove the fan motor from the bracket. October 2000 © TOSHIBA TEC 12-4 MR-3011/3012 DISASSEMBLY...
Page 83: Read Motor(Mr-3011)
12.4.2 Read motor (MR-3011) [A] Disassembly (1) Disconnect 2 connectors and take off the 2 binding band from read motor bracket. (2) Remove 4 screws and take off the read motor with the bracket attached. Connector Binding band Read motor (3) Loosen one belt tension screw.
Page 84 4 screws. (9) Loosen one belt tension screw and tighten it again to strain the timing belt. Note: Make sure that the belt is not twisting. October 2000 © TOSHIBA TEC 12-6 MR-3011/3012 DISASSEMBLY...
Page 85: Read Motor(Mr-3012)
(8) Put the timing belt on the pulley of the main unit and gear of the motor shaft. Attach the bracket with the read motor on the rear frame with 4 screws. October 2000 © TOSHIBA TEC 12-7 MR-3011/3012 DISASSEMBLY...
Page 86: Radf Open/Close Switch
(3) Remove one screw and take the RADF open/ close switch apart from the bracket. [B] Assembly and adjustment (4) Attach the RADF open/close switch to the bracket. Orange White Connect the connectors as shown in the right figure. Gray October 2000 © TOSHIBA TEC 12-8 MR-3011/3012 DISASSEMBLY...
Page 87: Feed Motor
(2) Remove 3 screws and take off the feed motor with the bracket attached. (3) Remove the belt and encoder. Remove 2 screws and take off the feed motor from the bracket. Encoder Belt October 2000 © TOSHIBA TEC 12-9 MR-3011/3012 DISASSEMBLY...
Page 88: Reverse Motor
Disconnect 3 connectors and remove one fixing screw. Take off the switch. [B] Assembly and adjustment Fix the jam access cover switch to the bracket. Connect the connectors as shown in the right figure. Orange Gray White October 2000 © TOSHIBA TEC 12-10 MR-3011/3012 DISASSEMBLY...
Page 89: Feed Motor Clock Sensor
(1) Remove 3 screws at the back of the tray and take cover off the cover from the tray. (2) Disconnect one connector. Tray sensor Latch (3) Release the latches of the sensor and take off the tray sensor. October 2000 © TOSHIBA TEC 12-11 MR-3011/3012 DISASSEMBLY...
Page 90: Empty Sensor, Registration Sensor, Original Width Sensor And Original Length Sensor
(5) Disconnect the connectors and release the Original width sensor latches. Remove the registration sensor, original width sensor and original length sensor. Original width Empty sensor sensor Registration sensor Original length sensor October 2000 © TOSHIBA TEC 12-12 MR-3011/3012 DISASSEMBLY...
Page 91: Read Sensor
(1) Open the jam access cover and the reverse guide. (2) Remove one screw and take off the exit sensor with the bracket attached. (3) Disconnect the connector and release the latches. Remove the exit sensor from the bracket. Connector October 2000 © TOSHIBA TEC 12-13 MR-3011/3012 DISASSEMBLY...
Page 92: Reverse Sensor
(2) Remove 2 screws fixing the bracket of the reverse sensor. Pull out the bracket to the exit side. (3) Remove one screw and take the reverse sensor apart from the bracket. (4) Disconnect one connector. Take off the reverse sensor. October 2000 © TOSHIBA TEC 12-14 MR-3011/3012 DISASSEMBLY...
Page 93: Adjustment Of Registration
Install the bracket while matching the center mark on it with the left edge of rib. Perform test copying. Make adjustment if the skew amount does not satisfy the specification. Skew of paper October 2000 © TOSHIBA TEC 12-15 MR-3011/3012 DISASSEMBLY...
Page 94: Adjustment Of Original Registration For Reversing Operation
12.11 Adustment of original registration for reversing operation Attach the bracket while matching protrusion with the center mark on the frame. Perform test copying. Make adjustment if the skew amount does not satisfy the specification. October 2000 © TOSHIBA TEC 12-16 MR-3011/3012 DISASSEMBLY...
Page 95: Adjustment Of Reverse Solenoid
Attach the reverse solenoid while matching the corner of the solenoid with that of folded up plate of the front frame. If the exit flapper does not move properly, loosen the screws and adjust the position of the solenoid. Corner October 2000 © TOSHIBA TEC 12-17 MR-3011/3012 DISASSEMBLY...
Page 96: Adjustment Of Radf Open/Close Switch
12.13 Adjustment of RADF open/close switch Adjust the position of the bracket so that the switch is turned ON while the RADF falls by its own weight (dimen- sion A: 40 to 45 mm). Glass surface October 2000 © TOSHIBA TEC 12-18 MR-3011/3012 DISASSEMBLY...
Page 97: Adjustment Of Radf Open/Close Sensor
12.14 Adjustment of RADF open/close sensor Adjust the position of the bracket so that the sensor is turned ON while the RADF falls by its own weight (dimen- sion A: 30 to 35 mm). Glass surface October 2000 © TOSHIBA TEC 12-19 MR-3011/3012 DISASSEMBLY...
Page 98: Adjustment Of Image Skew
Note: Loosen the fixing screw to perform the adjustment, and make sure to tighten it when it is finished. fixing screw adjustment screw Platen guide Jump plate October 2000 © TOSHIBA TEC 12-20 MR-3011/3012 DISASSEMBLY...
Page 99: Adjustment Of Height (Radf)
ADF original glass, and the height positioning stud contacts with the original glass. Adjustment screw Adjustment screw Platen guide front holder Platen guide rear holder Height positioning stud ADF original glass Original glass October 2000 © TOSHIBA TEC 12-21 MR-3011/3012 DISASSEMBLY...
Page 100: Initialization Of Eeprom And Adjustment Of Sensors
See the adjustment mode (05) in the PPC Service Handbook for the details. Errors such as paper jamming may occur if the EEPROM is not initialized and the sensors are not adjusted after the above mentioned parts were replaces. October 2000 © TOSHIBA TEC 12-22 MR-3011/3012 DISASSEMBLY...
Page 102 Sensor cover mylar Tolerance: 0 ~ 0.3 feed guide Sensor cover mylar October 2000 © TOSHIBA TEC 12-24 MR-3011/3012 DISASSEMBLY...
Page 103 Sensor mirror mylar Tolerance: 0 ~ 0.5 Sensor mirror mylar Paper guide October 2000 © TOSHIBA TEC 12-25 MR-3011/3012 DISASSEMBLY...
Page 104 Read guide Read guide mylar 1 Read guide mylar 2 Punch mark 0 ±0.3 Attach the mylar in the center of the dent. Sensor mylar Edge of the plate Tolerance 0 ±0.3 October 2000 © TOSHIBA TEC 12-26 MR-3011/3012 DISASSEMBLY...
Page 105 Make sure there are no wrinkles or bubbling on the reverse guide. Reverse guide Sensor mirror mylar 2 Push the mirror against the edge of the concave. (The mirror must not protrude from the concave) October 2000 © TOSHIBA TEC 12-27 MR-3011/3012 DISASSEMBLY...
Page 106 The mylar should not come out of the edges of the plate Sensor mirror mylar3 Platen mylar2 Edge of the plate 0 -0.2 The mylar should not come out of the edges of the plate October 2000 © TOSHIBA TEC 12-28 MR-3011/3012 DISASSEMBLY...
Page 107: Service
Pickup roller and Clean the rollers with alcohol feed roller are dirty? Transport power of Replace the rollers with new ones pickup roller and feed roller is weak? October 2000 © TOSHIBA TEC MR-3011/3012 SERVICE 13-1...
Page 108 Move the slides so that they contact slides too great compared to the edges of the original that of original? 5) Black streaks appear on copied image Start ADF original glass is dirty? Clean the glass with alcohol October 2000 © TOSHIBA TEC MR-3011/3012 SERVICE 13-2...
Page 109: Troubleshooting For Electrical Errors
Empty sensor (“D”) Check or replace the empty is 0V when there is paper sensor exist? Check or replace the PC board “A” “B” “C” “D” TP27 TP26 TP30 TP16 CN1_5pin October 2000 © TOSHIBA TEC MR-3011/3012 SERVICE 13-3...
Page 110 Check or replace motor 3) Communication error Start Interface cable normal? Replace the interface cable Check or replace the PC board Check or replace the scanner Communication recovered? control PC board Repair completed October 2000 © TOSHIBA TEC MR-3011/3012 SERVICE 13-4...
Page 111 Registration roller does Check or replace the PC board not catch the original? Clean or replace the registration roller Check or adjust the roller pressure “A” “B” “C” “D” TP19 TP20 TP21 TP17 October 2000 © TOSHIBA TEC MR-3011/3012 SERVICE 13-5...
Page 112: Assembly Of Pc Board
TP30 TP34 TP6 TP4 S3LC46 PTH1 DF+24V TP25 TP24 R111 TP55 TP11 TP12 TP10 TP41 TP27 TP15 TP14 TP13 TP23 TP26 TP1 TP5 TP3 TP16 +24V FUSE1 TP29 TP22 October 2000 © TOSHIBA TEC MR-3011/3012 ASSEMBLY OF PC BOARD 14-1...
Page 113: Periodic Maintenance
15. PERIODIC MAINTENANCE October 2000 © TOSHIBA TEC 15-1 MR-3011/3012 PERIODIC MAINTENANCE...
Page 114 7. Small roller 2 8. Read sensor 9. Read guide 10. Read roller 11. Small roller 3 12. Small roller 4 13. Reverse sensor 14. Exit sensor 15. Reverse roller 16. Platen sheet October 2000 © TOSHIBA TEC 15-2 MR-3011/3012 PERIODIC MAINTENANCE...
Page 115: Circuit Diagram / Harness Diagram
16. CIRCUIT DIAGRAM / HARNESS DIAGRAM 16.1 Circuit Diagram (MR-3011) October 2000 © TOSHIBA TEC 16-1 MR-3011/3012 CIRCUIT/HARNESS DIAGRAM...
Page 116: Circuit Diagram (Mr-3012)
16.2 Circuit Diagram (MR-3012) October 2000 © TOSHIBA TEC 16-2 MR-3011/3012 CIRCUIT/HARNESS DIAGRAM...
Page 118: Harness Diagram (Mr-3011)
16.4 Harness Diagram (MR-3011) October 2000 © TOSHIBA TEC 16-4 MR-3011/3012 CIRCUIT/HARNESS DIAGRAM...
Page 119: Harness Diagram (Mr-3012)
16.5 Harness Diagram (MR-3012) October 2000 © TOSHIBA TEC 16-5 MR-3011/3012 CIRCUIT/HARNESS DIAGRAM...
Page 120 SD-A-109, 00-10-AB 1-1, KANDA NISHIKI-CHO, CHIYODA-KU, TOKYO, 101-8442, JAPAN...

This manual is also suitable for:

Mr-3012

Toshiba MR-3011 Service Manual

1 Specification

2 Configuration

3 Sectional View and Drive System

4 Symbols and Layout of Electrical Parts / Diagram of Signal Blocks

5 Description of Operations

6 Jamming

7 Original Size Detection

8 Flow Chart

9 Timing Chart

10 Description of Circuits

11 Description of Input/Output Signals

12 Disassembly and Adjustment

13 Service

14 Assembly of Pc Board

15 Periodic Maintenance

16 Circuit Diagram / Harness Diagram

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Troubleshooting

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Summary of Contents for Toshiba MR-3011

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