Toshiba MR3011 User Manual

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File No. 31100005

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TOSHIBA TEC CORPORATION

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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" booklet which comes with each unit of the MR-3011/3012.

2. The MR-3011/3012 should be installed by an authorized/qualified person.

3. Before starting installation, servicing or maintenance work, be sure to turn off and unplug the copier first.

4. When servicing or maintaining the MR-3011/3012, be careful about the rotating or operation sections such as gears, pulleys, sprockets, cams, belts, etc.

5. When parts are disassembled, reassembly is basically the reverse of disassembly unless otherwise noted in this manual or other related materials. Be careful not to reassemble small parts such as screws, washers, pins, E-rings, toothed washers to the wrong places.

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

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

8. Use suitable measuring instruments and tools.

9. 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.

10. 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 copier and make sure that there is no uninsulated charged objects in the vicinity.

11. For the recovery and disposal of used MR-3011/3012s, consumable parts and packing materials, it is recommended that the relevant local regulations/rules should be followed.

12. After completing installation, servicing and maintenance of the MR-3011/3012, return the MR-3011/3012 to its original state, and check operation.

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PREPARATION FOR TRANSPORTATION OF COPIER

Before transporting a copier on which mounts the MR-3011/3012, take off the MR3011/3012 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.

Height positioning stud

Gagger

2. Make sure that the height positioning stud is not in contact with the original glass.

Gagger

The height positioning stud is not in contact with the original glass.

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CONTENTS

1. SPECIFICATION ......................................................................................... 1-1

2. CONFIGURATION....................................................................................... 2-1

3. SECTIONAL VIEW AND DRIVE SYSTEM.................................................. 3-1

3.1 Sectional View ....................................................................................... 3-1

3.2 Drive System ......................................................................................... 3-2

4. SYMBOLS AND LAYOUT OF ELECTRICAL PARTS /

DIAGRAM OF SIGNAL BLOCKS................................................................ 4-1

4.1 Symbols................................................................................................. 4-1

4.2 Layout of Electrical Parts ....................................................................... 4-3

4.3 Diagram of Signal Blocks....................................................................... 4-4

4.4 Description of Interface Signals............................................................. 4-5

5. DESCRIPTION OF OPERATIONS .............................................................. 5-1

5.1 Single Side Feeding .............................................................................. 5-1

5.2 Duplex Feeding...................................................................................... 5-5

5.3 Single Side Feeding (for Mixed Sized Originals).................................... 5-14

6. JAMMING.................................................................................................... 6-1

6.1 Feeding Jam .......................................................................................... 6-1

6.2 Transpor t Jam........................................................................................ 6-1

6.3 Exit Jam................................................................................................. 6-2

6.4 Reversing Jam....................................................................................... 6-2

7. ORIGINAL SIZE DETECTION..................................................................... 7-1

7.1 Method of Original Size Detection (for Standard Sized Originals)..... 7-1

7.2 Relation between Status of Sensor and Original Size

(for Standard Sized Originals) ........................................................... 7-3

7.3 Method of Original Size Detection (for Mixed Sized Original)............ 7-4

7.4 Relation between Status of Sensor and Original Size

(for Mixed Sized Originals) ................................................................ 7-5

8. FLOW CHART ............................................................................................. 8-1

9. TIMING CHART........................................................................................... 9-1

10. DESCRIPTION OF CIRCUITS .................................................................... 10-1

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

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10.5 Drive Circuit for Feed Motor................................................................... 10-5

10.6 Current Control Circuit for Feed Motor................................................... 10-6

10.7 Drive Circuit for Fan Motor..................................................................... 10-6

10.8 Drive Circuit for Reverse Solenoid......................................................... 10-7

10.9 Reset Circuit .......................................................................................... 10-7

10.10 EEPROM Circuit.................................................................................... 10-8

11. DESCRIPTION OF INPUT/OUTPUT SIGNALS.......................................... 11-1

11.1 REQ Signal, ACK Signal and TxD Signal .............................................. 11-1

11.2 DF-ACK Signal, DF-REQ Signal and RxD Signal.................................. 11-2

11.3 Input Circuits for Sensors ...................................................................... 11-3

12. DISASSEMBLY AND ADJUSTMENT .......................................................... 12-1

12.1 Pickup Roller and Feed Roller ............................................................... 12-1

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................................................................................... 12-10

12.4.7 RADF open/close sensor .................................................................. 12-10

12.4.8 PC board ........................................................................................... 12-10

12.4.9 Jam access cover switch ................................................................... 12-10

12.4.10 Feed motor clock sensor .................................................................. 12-11

12.5 Tray sensor ............................................................................................ 12-11

12.6 Empty Sensor, Registration Sensor, Original Width Sensor and

Original Length Sensor.......................................................................... 12-12

12.7 Read Sensor.......................................................................................... 12-13

12.8 Exit Sensor ............................................................................................ 12-13

12.9 Reverse Sensor ..................................................................................... 12-14

12.10 Adjustment of registration...................................................................... 12-15

12.11 Adjustment of original registration for reversing operation..................... 12-16

12.12 Adjustment of reverse solenoid ............................................................. 12-17

12.13 Adjustment of RADF open/close switch................................................. 12-18

12.14 Adjustment of RADF open/close sensor................................................ 12-19

12.15 Adjustment of image skew..................................................................... 12-20

12.16 Adjustment of height (RADF)................................................................. 12-21

12.17 Initialization of EEPROM and Adjustment of Sensors ........................... 12-22

12.18 Attachment of Mylars............................................................................. 12-23

13. SERVICE ..................................................................................................... 13-1

13.1 Troubleshooting for Mechanical Errors .................................................. 13-1

13.2 Troubleshooting for Electrical Errors...................................................... 13-3

October 2000 © TOSHIBA TEC MR-3011/3012 CONTENTS

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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)................................................................. 16-5

October 2000 © TOSHIBA TEC MR-3011/3012 CONTENTS

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1. SPECIFICATION

Model Name Capacity of Original Feeding Tray Feed Speed

Acceptable Original Size

Power Source Power Consumption Dimensions Weight

*Specification and appearance are subject to change without notice due to enhancedment of product quality.

MR-3011/MR-3012 Up to 100 sheets MR-3011:

Approx.16 sheets/min. (A4 or Letter, feed widthwise) [DP1600] Approx.20 sheets/min. (A4 or Letter, feed widthwise) [DP2000] Approx.25 sheets/min. (A4 or Letter, feed widthwise) [DP2500]

MR-3012:

Approx.35 sheets/min. (A4 or Letter, feed widthwise) [DP3500]

Approx.45 sheets/min. (A4 or Letter, feed widthwise) [DP4500] Smallest...A5-R Largest...A3 Thickness...50g/m2~127g/m2 (13.3lb~33.8lb) Power supplied from the copier 48W W557 × D497.3 × H165 (W22 inches × D19.6 inches × H6.5inches) Approx.13.6kg or 29.9lb

October 2000 © TOSHIBA TEC MR-3011/3012 SPECIFICATION

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2. CONFIGURATION

Drive/control section

Original feeding tray

Original receiving tray

Jam access cover

Feeding/transportation section

Original feeding tray section Drive/control section

Mechanical

• Jam access cover

• Pickup roller

• Feed roller

• Separation roller

• Registration roller

• Read roller

• Reverse roller

• Exit roller

• Original feeding tray

Feeding/transportation section

Electrical parts

• Empty sensor

• Original length sensor

• Registration sensor

• Original width sensor

• Read sensor

• Reverse sensor

• Exit sensor

• Tray sensor

• 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

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3. SECTIONAL VIEW AND DRIVE SYSTEM

3.1 Sectional View

Tray sensor

Empty lever

Pickup roller

Feed roller

Registration sensor

Original width sensor

Registration roller

Flapper

Reverse guide

Small roller1

Separation roller

Original length

sensor

Exit sensor

Read

Reverse roller

Exit roller

sensor

Reverse sensor

Small roller4

Small roller3

Reverse flapper

Exit flapper

Read roller

Small roller2

October 2000 © TOSHIBA TEC MR-3011/3012 SECTIONAL VIEW

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3.2 Drive System

(1) Feed motor rotating clockwise (as seen from the front side)

Feed motor

Rear side

One-way clutch (locked)

Spring clutch (Stops the drive for the clutch when the pickup roller reaches its upper limit position)

Pickup roller (lifted up)

Front side

Motor rotating clockwise to transport original

(2) Feed motor rotating counterclockwise (as seen from the front side)

Feed motor

Rear side

One-way clutch (slipped)

Front side

Motor rotating counterclockwise to transport original

Pickup roller (Down)

October 2000 © TOSHIBA TEC MR-3011/3012 SECTIONAL VIEW

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(3) Read motor rotating clockwise (as seen from the front side)

Reverse motor

Read motor

Rear side

Reverse motor rotating clockwise to carry original to the reverse path.

Reverse roller

Exit roller

Front side

Transportation, scanning and original exit (read motor rotating clockwise)

Read roller

(4) Read motor rotating counterclockwise (as seen from the front side)

Reverse motor

Read motor

Rear side

Reverse motor rotating counterclockwise for back side registration and original discharge.

One-way gear

Reverse roller

Exit roller

Front side

Read motor rotating counterclockwise to transport mixed sized originals.

Read roller

October 2000 © TOSHIBA TEC MR-3011/3012 SECTIONAL VIEW

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One-way gear

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4. SYMBOLS AND LAYOUT OF ELECTRICAL PARTS / DIAGRAM OF SIGNAL BLOCKS

4.1 Symbols

(1) Motors

Symbol

RDMOT

RVMOT

FMOT

FAN

(2) Solenoid

Symbol

RSOL

Name RDMOT (Read motor)

RVMOT (Reverse motor)

FMOT (Feed motor)

FAN (Fan motor)

Name RSOL (Reverse solenoid)

Function

Drives transportation roller and exit roller

Drives reverse roller

Drives pickup roller, feed roller and registration roller

Cools down read motor

Function

Switches flapper

Remarks

Pulse motor

DC motor

Fan motor

Remarks

DC solenoid

October 2000 © TOSHIBA TEC MR-3011/3012 SYMBOLS

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(3) Switches and Sensors

Symbol

JAMSW

OPNSW

EMPS REGS

EXITS SIZES1 SIZES2 SIZES3

TRYS

OPNSN

MCLK LENGS READS

RVRS

Name JAM-SW (Jam access cover switch) RADF-OPN-SW (RADF open/close switch) EMP-SNS (Empty sensor) REG-SNS (Registration sensor) EXIT-SNS (Exit sensor) SIZE-SNS 1 (Original width sensor 1) SIZE-SNS 2 (Original width sensor 2) SIZE-SNS 3 (Original width sensor 3) TRY-SNS (Tray sensor) RADF-OPN-SNS (RADF open/close sensor) MCLK-SNS (Feed motor clock sensor) LENG-SNS (Original length sensor) Read-SNS (Read sensor) RVR-SNS (Reverse sensor)

Function Switch to detect if jam access cover for feeding unit is opened/closed Switch to detect if RADF unit is opened/closed

Sensor to detect original on original tray Sensor to detect original at registration position Sensor to deteat original at exit area Original width detection sensor 1 Original width detection sensor 2 Original width detection sensor 3 Sensor to detect length of original on original

tray Sensor to detect if RADF unit is opened/closed

Detection sensor for feed motor clock Sensor to detect length of original Sensor to detect leading edge of original at

scanning position Sensor to detect original at reverse position

Remarks

Microswitch Microswitch Semiconductive

optical sensor Semiconductive optical sensor Semiconductive optical sensor Semiconductive optical sensor Semiconductive optical sensor Semiconductive optical sensor Semiconductive optical sensor Semiconductive optical sensor Semiconductive optical sensor Semiconductive optical sensor Semiconductive optical sensor Semiconductive optical sensor

(4) PC board

Symbol

PWA-DF

PWA-LGC-RADF (PC board)

Function Drives feeding and transportation

RemarksName

October 2000 © TOSHIBA TEC MR-3011/3012 SYMBOLS

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4.2 Layout of Electrical Parts

JAMSW

TRYS

FMOT

RDMOT

FAN

OPNSW

MCLK

RVRS

READS

RVMOT

EMPS

OPNS

SIZES1

SIZES3

REGS

EXITS

LENGS

SIZES2

RSOL

RDMOT Read motor RVMOT Reverse motor FMOT Feed motor FAN Fan motor RSOL Reverse solenoid JAMSW Jam access cover switch OPNSW RADF open/close switch EMPS Empty sensor REGS Registration sensor EXITS Exit sensor SIZE 1 Original width sensor 1 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

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4.3 Diagram of Signal Blocks

PPC (copier)

ACK VARID EMPTY RxD SGND TxD SGND DF-ACK DF-REQ REQ RADFCNT

DC+24V

(Supplied from copier)

P+5V

(

Supplied from copier

DC+5V

Supplied from copier

(

RADF (Reversing Automatic Document Feeder)

JAMSWJAM-SW

OPNSWRADF-OPN-SW

EMPSEMP-SNS REGSREG-SNS

EXITSEXIT-SNS SIZES1SIZE-SNS1 SIZES2SIZE-SNS2 SIZES3SIZE-SNS3

TRYSTRY-SNS

OPNSRADF-OPN-SNS

MCLKMCLK-SNS LENGSLENG-SNS READSREAD-SNS

RVRSRVR-SNS

PWA-LGC-F513

Sensor

input

circuit

Communication

circuit

DC+24V

P+5V

CPU

Irruptive

current control

circuit

ROM

EEPROM

Driver

RSOL

FAN

FMOT FMOT

RDMOT

RVMOT

)

DC+5V

)

*1 Available only for MR-3011

October 2000 © TOSHIBA TEC MR-3011/3012 SYMBOLS

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4.4 Description of Interface Signals

The following 6 lines are used to send/receive signals between the copier and the RADF.

REQ ............. Communication request signal (from copier to RADF)

DF-REQ ....... Communication request signal (from RADF to copier)

DF-ACK........Response signal for communication request signal (from RADF to copier)

ACK..............Response signal for communication request signal (from copier to RADF)

TxD ..............Data sent from copier to RADF

RxD ..............Data sent from RADF to copier

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

REQ

DF-ACK

TxD

DF-REQ

ACK RxD

October 2000 © TOSHIBA TEC MR-3011/3012 SYMBOLS

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5. DESCRIPTION OF OPERATIONS

5.1 Single Side Feeding

(A4, registration ratio 100%) (1) Setting original

The original is set on the tray and the empty sensor is turned ON. The original set signal becomes ON.

(2) Start of pre-feeding operation n Completion of pre-feeding operation

A feed signal is sent from the main unit, and the feed motor rotates the pickup roller and feed motor to start feeding the original (pre-feeding operation).

(3) Start of feeding operation n Original length sensor OFF

The feed motor starts to rotate in reverse and the read motor rotates forward to rotate the registration roller and the read roller while the original is waiting in front of the registration roller and read roller starts to be transported. The feed motor is stopped after the original length sensor is turned OFF.

October 2000 © TOSHIBA TEC MR-3011/3012 DESCRIPTION OF OPERATION

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(4) Original length sensor OFF n Completion of sending operation

If the next original is waiting in the tray, the pickup roller is lowered after the feed motor which has started to rotate forward rotates for a cer tain number of pulses. (The pickup roller waits for the next pre-feeding operation in that lowered position.) The read motor rotates for a certain number of pulses and stops after the read sensor is turned ON. (The leading edge of the original reaches the pre-scanning position.)

(5) Start of scanning operation n Star t of pre-feeding operation for next original

The original transport signal is sent from the main unit, and the read motor starts to rotate forward. The read roller and exit roller are rotated to start scanning the original. The feed motor rotates the pickup roller and feed roller after the trailing edge of the original has passed the registration roller to start the pre-feeding operation for the next original.

(6) Start of pre-feeding operation for next original n 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

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(7) Start of feeding operation for next original n Completion of scanning operation

The feed motor starts to rotate in reverse, it rotates the registration roller to feed the next original waiting in front of the registration roller and read roller. The original set signal is reset when the empty sensor is turned OFF. The feed motor is stopped after the original length sensor is turned OFF. The scanning operation is completed when the trailing edge of the original being scanned has passed the scanning position.

(8) Completion of scanning operation n Completion of feeding operation for next original

The read motor rotates for a certain number of pulses and stops after the read sensor is turned ON. (The leading edge of the next original reaches the pre-scanning position.)

(9) Start of scanning operation for next original n Completion of original discharge

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

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(10)Completion of scanning operation for next original

Scanning is completed when the trailing edge of the next original has passed the scanning position and the original is carried toward the receiving tray.

(11)Exit sensor OFF (next original)

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 or iginal 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

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5.2 Duplex Feeding

(A4, reproduction ratio 100%) (1) Setting original

The original is set on the tray and the empty sensor is turned ON. The original set signal becomes ON.

(2) Start of pre-feeding operation n Completion of pre-feeding operation

A feed signal is sent from the main unit, and the feed motor starts to rotate forward and rotates the pickup roller and feed roller to start the pre-feeding operation. After the registration sensor detected the leading edge of the original, the feed motor transports the original for a certain number of pulses, performs registration and stops.

(3) Start of feeding operation n Original length sensor OFF

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

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(4) Original length sensor OFF n Completion of feeding operation

If the next original is waiting on the tray, the pickup roller is lowered after the feed motor started to rotate forward rotates for a certain number of pulse. (The pickup roller waits for next pre-feeding operation in that lowered position.) The read motor rotates for a certain number of pulses and stops after the read sensor is turned ON. (The leading edge of the original reaches the pre-front side scanning position.)

(5) Start of front side scanning operation n Star t of pre-feeding operation for next original

An original transport signal is sent from the main unit, and the read motor and reverse motor start to rotate forward. The read roller, exit roller and reverse roller are then rotated. The reverse flapper is switched toward the reverse position by turning ON the reverse solenoid and the front side of the original, star ts to be scanned. The feed motor rotates the pickup roller and feed roller after the trailing edge of the original has passed the registration roller, to start the pre-feeding operation for the next original.

(6) Start of pre-feeding operation for next original n Completion of pre-feeding operation n Completion of front-

side scanning operation

After the registration sensor has detected the leading edge of the next original, the feed motor transports the original for a certain number of pulses, performs registration and stops. 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

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(7) Completion of transport operation for front side of original (original paused at reverse position)

The read motor and reverse motor are stopped after the reverse sensor is turned OFF to complete transpor tation of the front side of the original.

(8) Start of back side registration operation n Completion of registration

The reverse motor starts to rotate in reverse and rotates the reverse roller in reverse to start the registration operation for the back side of the original pausing at the reverse position. After the reverse sensor has detected the trailing edge of the original, the feed motor transpor ts the or iginal for a certain number of pulses, performs registration and stops.

(9) Start of reverse feeding operation n Completion of reverse feeding operation

The read motor starts to rotate forward and the reverse motor starts to rotate in reverse. The read roller, exit roller and reverse roller are rotated to start the reverse feeding operation for the original waiting at the back side registration position. The read motor and reverse motor rotate for a cer tain 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

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(10)Start of back side scanning operation n Or iginal passing reverse position

An original transport signal is sent from the main unit, and the read motor starts to rotate forward and reverse motor starts its reverse rotation activated by read rotate in reverse to rotate the read roller, exit roller and reverse roller. The reverse flapper is switched toward the reverse position by turning ON the reverse solenoid to start scanning the back side of the original. The reversal motor rotates for a cer tain number of pulses and stops after the trailing edge of the original has passed the reverse roller.

(11)Original passing reverse position n Completion of back side scanning operation

The reversal motor starts to rotate forward and rotates the reverse roller to be ready for the leading edge of the original to come into the reverse position. The scanning operation for the back side of the original is completed when the trailing edge of the original has passed the scanning position.

(12)Completion of transport operation for back side of original (original paused at reverse position)

The read motor and reverse motor are stopped after the reverse sensor is turned OFF to complete transpor tation 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

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(13)Start of reverse discharge n Start of feeding operation for next original n Original length sensor OFF

The read motor starts to rotate forward and the reverse motor starts to rotate in reverse. The read roller, exit roller and reverse roller are rotated to start reverse discharge of the original paused at the reverse position. The feed motor rotates for a certain number of pulses after the reverse sensor is turned ON. It then starts to rotate in reverse to rotate the registration roller, and starts the feeding operation for the next original waiting in front of the read roller and registration roller. The original set signal is reset when the empty sensor is turned OFF. The reverse motor is stopped after the reverse sensor is turned OFF. The feed motor is stopped after the original length sensor is turned OFF.

(14)Original length sensor OFF n Completion of feeding operation for next original

The read motor rotates for a certain number of pulses and stops after the read sensor is turned ON. (The leading edge of the next original reaches the pre-scanning position for front side of original.)

(15)Start of front side scanning operation pre-scanning position for front side of original n Completion of

reverse discharge operation

The read motor and reverse motor start to rotate forward to rotate the read roller, exit roller and reverse roller. The reverse flapper is switched toward the reverse position by turning ON the reverse solenoid to star t 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.

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(16)Completion of front side scanning operation

The scanning operation for the front side of the original is completed when the trailing edge of next original has passed the scanning position.

(17)Completion of transport operation for the front side of next original (original paused at reverse position)

The read motor and reverse motor are stopped when the reverse sensor is turned OFF to complete the transpor t operation for the front side of the original.

(18)Start of back side registration n Completion of back side registration

The reverse motor starts to rotate in reverse and the reverse roller rotates in reverse to start the registration of the next original paused at the reverse position. After the reverse sensor has detected the leading edge of the original, the reverse motor transpor ts the original for a certain number of pulses, performs registration and stops.

October 2000 © TOSHIBA TEC MR-3011/3012 DESCRIPTION OF OPERATION

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(19)Start of reverse feeding operation for next original n Completion of reverse feeding operation

The read motor starts to rotate forward and the revese motor starts to rotate in reverse. The read roller, exit roller and reverse roller are rotated to start the reverse feeding operation for the next original waiting at the back side registration position. The read motor and reverse motor rotate for a cer tain number of pulses and stop after the read sensor has been turned ON. (The leading edge of next original reaches the pre-scanning position for the back side of the original.)

(20)Start of back side scanning operation n Or iginal passing reverse position

The read motor starts to rotate forward and the reverse motor starts to rotate in reverse to rotate the read roller, exit roller and reverse roller. The reverse flapper is switched toward the reverse position by tur ning ON the reverse solenoid to start scanning the back side of the next original. The reverse motor rotates for a cer tain number of pulses and stops after the trailing edge of the next original has passed the reverse roller.

(21)Next original passing reverse position n Completion of back side scanning

The reverse motor starts to rotate forward and the reverse roller is rotated to be ready for the leading edge of the next original to come into the reverse position. 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 MR-3011/3012 DESCRIPTION OF OPERATION

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(22)Completion of transport operation for back side of next original (original paused at reverse position)

The read motor and reverse motor stop after the reverse sensor is turned OFF to complete transpor tation of the back side of the original. The reverse flapper is switched to the exit side by turning OFF the reverse solenoid.

(23)Start of reverse discharge operation of next original n Start of feeding operation for next original n Or iginal

length sensor OFF

The read motor starts to rotate forward and the reverse motor starts to rotate in reverse. The read roller, exit roller and reverse roller are rotated to start the reverse discharge of the next original paused at the reverse position. 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 MR-3011/3012 DESCRIPTION OF OPERATION

5-13

Page 31

5.3 Single Side Feeding (for Mixed Sized Originals)

(Mixture of A4-R and FOLIO (LTR/LG), reproduction ratio 100%) (1) Setting original

An original is set on the tray and the empty sensor is turned ON. The original set signal becomes ON.

(2) Start of pre-feeding operation n Completion of pre-feeding operation

The feed signal is sent from the main unit, and the feed motor starts to rotate forward. The pickup roller and feed roller are rotated to start the pre-feeding operation. After the registration sensor has detected the leading edge of the original, the feed motor transports the original for a cer tain number of pulses, performs registration and stops.

(3) Start of feeding operation n Completion of feeding operation

The feed motor starts to rotate in reverse and the read motor starts to rotate forward. The registration roller and read roller, exit roller are rotated to star t feeding the original waiting in front of the registration roller and read roller. 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

5-14

Page 32

(4) Start of transpor t operation n Original length sensor OFF

The read motor starts to rotate forward and rotates the read roller and exit roller to start transportation of the original paused at the scanning position. (The original is transported to determine its lengthwise size along the feeding direction.)

(5) Original length sensor OFF n Completion of downswing operation of pickup roller

The pickup roller is lowered after the feed motor has started to rotate forward and has rotated for a certain number of pulses. (The pickup roller waits for the next pre-feeding operation in the lowered position.)

(6) Completion of downswing operation of pickup roller n Pre-reverse position for mixed sized original

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 MR-3011/3012 DESCRIPTION OF OPERATION

5-15

Page 33

(7) Start of reverse operation for mixed sized originals n Completion of reverse operation

The gate for the reverse path is switched after a certain period of time. The read motor starts to rotate in reverse and rotates the read roller and exit roller in reverse to star t the reverse operation. The read motor rotates for a certain number of pulses and stops after the read sensor has been turned OFF.

(8) Start of transpor tation n Completion of transpor tation

The read motor starts to rotate forward and rotates the read roller and exit roller to start the transportation of the original to the pre-scanning position. The read motor rotates for a certain number of pulses and stops after the read sensor has been turned ON. (The leading edge of the original reaches the pre-scanning position.)

(9) Start of scanning operation n Star t of pre-feeding operation for next original n Completion of pre-feeding

operation

A transport signal is sent from the main unit, and the read motor star ts to rotate forward. The read roller and exit roller is rotated to start scanning the or iginal. The feed motor rotates pickup roller and feed roller to start the prefeeding operation for the next original. 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

(10) Completion of scanning operation

Scanning is completed when the trailing edge of the original has passed the scanning position. (11)Exit sensor OFF n Start of feeding operation for next original

The feed motor starts to rotate in reverse after the exit sensor has been turned OFF and rotates the registration roller to start feeding the next original waiting in front of the registration roller and read roller. The original discharge operation is completed when the trailing edge of the original has passed the exit roller.

(12)Completion of feeding operation for next original

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 MR-3011/3012 DESCRIPTION OF OPERATION

5-17

Page 35

(13)Start of transportation of next original n Original length sensor OFF

The read motor starts to rotate forward and rotates the read roller and exit roller to transport the next original paused at the scanning position. (The original is transported to deter mine its lengthwise size along the feeding direction.) The original set signal is reset when the empty sensor is turned OFF.

(14)Original length sensor OFF (for next original) n Pre-reverse position for mixed sized originals

The read motor rotates for a certain number of pulses and stops after the original length sensor has been turned OFF. (The trailing edge of the next original reaches the pre-reverse position.)

(15)Start of reverse operation for the next mixed sized original n Completion of reverse operation

October 2000 © TOSHIBA TEC MR-3011/3012 DESCRIPTION OF OPERATION

5-18

Page 36

(16)Start of transportation of next original n Completion of transportation

The read motor starts to rotate forward and rotates the read roller and exit roller to start the transportation of the next original to the pre-scanning position. The read motor rotates for a certain number of pulses and stops after the read sensor has been turned ON. (The leading edge of the next original reaches the pre-scanning position.)

(17)Start of scanning operation for next original

A transport signal is sent from the main unit and the read motor star ts to rotate forward. The read roller and exit roller is rotated to start scanning the next original.

(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 MR-3011/3012 DESCRIPTION OF OPERATION

5-19

Page 37

(19)Exit sensor OFF n Completion of discharge operation for next or iginal

After the exit sensor has been turned OFF, the read motor rotates for a certain number of pulses till the next original is completely discharge into the tray. The read motor is stopped when the next original is completely discharge into the receiving tray to complete the original discharge operation. 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

6. JAMMING

6.1 Feeding Jam

(1) Original not reaching registration sensor

• Jam detection: Jam detection is performed after the feed motor starts to rotate forward to start the pre-feeding operation, until the leading edge of the original has reaches the registration sensor.

• Jam timer setting The setting value of thrice the amount of time after the original turns on the empty sensor till it reaches the registration sensor is set for the jam timer.

6.2 Transport Jam

(1) Original jamming at registration sensor

• Jam detection for single-sided/duplex originals: Jam detection is performed after the read motor starts to rotate forward to start scanning the front side of the original, until the trailing edge of the original has passed the registration sensor.

• Jam pulse setting [In the normal mode] Assume that the longest original (LD) is at the pre-scanning position. The setting value of an added +30mm to the distance till the trailing edge of the original has passed the registration sensor is set as the jam pulse. [In the length is irregularly long mode] Assume then the longest original (original length approx. 1m) is at the pre-scanning position. The setting value of an added +50mm to the distance till the trailing edge of the original has passed the registration sensor is set as the jam pulse.

(2) Original not reaching read sensor (1)

• Jam detection for single-sided/duplex originals: Jam detection is performed after the leading edge of the original reaches the first small roller of the read roller during the pre-feeding operation, until it has reached the read sensor.

• Jam pulse setting The setting value of an added +60mm to the distance from the first small roller of the read roller to the position where the read sensor is turned ON is set as the jam pulse.

(3) Original not reaching read sensor (2)

• Jam detection for duplex originals: Jam detection is performed after the read motor starts to rotate forward to start switchback feeding, until the leading edge of the original has reached the read sensor.

• Jam pulse setting The setting value of an added +30mm to the distance from the back side registration position (= the position where the 4th small roller of the read sensor is located) till the read sensor is turned ON is set as the jam pulse.

(4) Original jamming at read sensor (1)

• Jam detection for single-sided/duplex originals: Jam detection is performed after the trailing edge of the original has passed the registration sensor during the pre-feeding operation, until it has passed the read sensor.

• Jam pulse setting The setting value of an added +30mm to the distance from the position where the registration sensor is turned OFF till the read sensor is turned OFF is set as the jam pulse.

(5) Original jamming at read sensor (2)

• Jam detection for duplex originals: Jam detection is performed after the original waiting at the back side registration position reaches the read sensor during the reverse feeding operation, until the trailing edge of the original has passed the read sensor during scanning.

• 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

6-1

Page 39

(6) Original not reaching exit sensor (1)

• Jam detection for single-sided/duplex originals: Jam detection is performed after the read motor starts to rotate forward to start scanning the original

waiting at the pre-front side scanning position, until the leading edge of the original has reached the exit sensor.

• Jam pulse setting The setting value of an added +30mm to the distance from the pre-scanning position till the exit sensor is

turned ON is set as the jam pulse.

(7) Original not reaching reverse sensor (1)

• Jam detection for duplex originals: Jam detection is performed after the read motor starts to rotate forward to start scanning the front side of

the original, until the leading edge of the original has reached the reverse sensor.

• Jam pulse setting The setting value of an added +30mm to the distance from the pre-scanning position till the reverse sensor

is turned ON is set as the jam pulse.

6.3 Exit Jam

(1) Original jamming at exit sensor (1)

• Jam detection for duplex originals: Jam detection is performed after the trailing edge of original paused at the reverse position has passed the

reverse sensor during the reverse operation, until it has passed the exit sensor.

• Jam pulse setting The setting value of an added +60mm to the distance from the position where the reverse sensor is turned

OFF till the exit sensor is turned OFF is set as the jam pulse.

(2) Original jamming at exit sensor (2)

• Jam detection for single-sided/duplex originals: Jam detection is performed after the trailing edge of the original waiting at the pre-front side scanning

position has passed the read sensor during the scanning operation, until it has passed the exit sensor.

• Jam pulse setting The setting value of an added +60mm to the distance from the position where the read sensor is turned

OFF till the exit sensor is turned OFF is set as the jam pulse.

6.4 Reversing Jam

(1) Original not reaching exit sensor (2)

• Jam detection for duplex originals: Jam detection is performed after the leading edge of the original paused at the reverse position has

reached the reverse sensor during the reverse discharge operation, until it has reached the exit sensor.

• Jam pulse setting The setting value of an added +30mm to the distance from the position where the reverse sensor is turned

ON till the exit sensor is turned ON is set as the jam pulse.

(2) Original not reaching reverse sensor (2)

• Jam detection for duplex originals: Jam detection is performed after reverse motor star ts rotating in reverse to start the reverse operation for

the original paused at the reverse position, until the leading edge of the original has reached the reverse sensor.

• Jam pulse setting The setting value of an added +30mm to the distance from the pre-reverse position till the reverse sensor

is turned ON is set as the jam pulse.

(3) Original jamming at reverse sensor (1)

• Jam detection for duplex originals: Jam detection is performed after the trailing edge of the original being scanned has passed the read

sensor, until it has passed the reverse sensor.

• Jam pulse setting 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

6-2

Page 40

(4) Original jamming at reverse sensor (2)

• Jam detection for duplex originals: Jam detection is performed after the leading edge of the original paused at the reverse position has reached the reverse sensor during the reverse discharge operation, until the trailing edge of the original has passed the reverse sensor.

• 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

6-3

Page 41

7. ORIGINAL SIZE DETECTION

Original size is detected when it is sent out of the tray, and informed (unit:mm) to the copier before the star t of the scanning of the original.

7.1 Method of Original Size Detection (for Standard Sized Originals)

1) Width When the original waiting at the pre-feeding position has started to be fed and its leading edge reaches the first small roller of the read roller, its width of the original is detected using the original width sensors 1 and 3 and the size data are saved in EPROM.

2) Size along feeding direction When the trailing edge of the original (original size: LT of smaller) is detected by the original length sensor before the read sensor detects the leading edge of the original, or when the original length sensor has already detected the original (original size: B5-R or larger) when the read sensor detects the leading edge of the original, the original size along the feeding direction is assumed with the width size data saved in EPROM, then the size data are sent to the copier. At this time, the date for the size along the feeding direction are sent first. With an original whose length is irregularly long, if the size along the feeding direction is not determined by the scanning operation is started, the read motor counts the of distance pulses after the scanning operation is started till the trailing edge of the original is detected by original length sensor. 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

7-1

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

7-2

Page 43

7.2 Relation between Status of Sensor and Original Size (for Standard Sized

Originals)

[For JE]

(mm)

Original

width

sensor 1

OFF OFF OFF OFF OFF OFF OFF

ON ON

[For UC]

Original

width

sensor 1

OFF OFF OFF OFF OFF OFF OFF

ON ON

Original

width

sensor 2

OFF OFF OFF OFF OFF

ON ON/OFF ON/OFF

Original

width

sensor 2

OFF OFF OFF OFF OFF

ON ON/OFF ON/OFF

Original

width

sensor 3

OFF OFF

ON ON

ON ON/OFF ON/OFF ON/OFF ON/OFF

Original

width

sensor 3

OFF OFF

ON ON/OFF ON/OFF ON/OFF ON/OFF

Tray

sensor

ON/OFF ON/OFF ON/OFF

OFF

ON ON/OFF ON/OFF ON/OFF ON/OFF

Tray

sensor

ON/OFF ON/OFF ON/OFF

OFF

ON ON/OFF ON/OFF ON/OFF ON/OFF

Original length

sensor

OFF

ON ON

OFF

Original length

sensor

OFF

ON ON

OFF

Original size

data

(Widthwise

direction)

148 182 297 210 210 257 257 297 297

Original size

data

(Widthwise

direction)

140 280 216 216 216 280 258 280 280

Original size

data (Feeding direction)

210 257 210 297 330 182 364 210 420

Original size

data (Feeding direction)

216 432 216 280 356 216 356 216 432

Original

size

detected

A5R B5R

A4R

FOLIO

B5 B4 A4 A3

(mm)

Original

size

detected

STR

8.5 × 8.5 LTR

COMPUTER

October 2000 © TOSHIBA TEC MR-3011/3012 SIZE DETECTION

7-3

Page 44

7.3 Method of Original Size Detection (for Mixed Sized Original)

1) Width Width is detected by original width sensors 1,2 and 3 and the size data are saved when an original waiting at the pre-feeding position has started to be fed and its leading edge reaches the first small roller of the read roller.

2) Size along the feeding direction With original whose width is any of 210mm/216mm, if the original length sensor has already detected the original when the read sensor detects the leading edge of the original, reverse operation is performed to determine the size along the feeding direction. The read motor counts the pulse of the distance pulses till the original length sensor detects the trailing edge of the original. Original size is determined by the result of counting and threshold of size along the feeding direction, then size data are sent to the copier. At this time, data of the size along the feeding direction are sent first. 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

7-4

Page 45

7.4 Relation between Status of Sensor and Original Size (for Mixed Sized Originals)

[For JE]

Original

width

sensor 1

OFF OFF

[For UC]

Original

width

sensor 1

OFF OFF

Original

width

sensor 2

OFF

Threshould of size along feeding direction

OFF

Original

width

sensor 2

OFF OFF

Original

width

sensor 3

ON ON

Original

width

sensor 3

Threshould size of feeding direction

Tray

sensor

OFF

Tray

sensor

OFF

Original

length

sensor

ON ON

Original

length

sensor

ON ON

Original size

data

(Widthwise

direction)

210 210

Original size

data

(Widthwise

direction)

216 216

Original size

data (Feeding direction)

297

313.5 330

Original size

data (Feeding direction)

280 318 356

Original

detected

FOLIO

Original

detected

(mm)

size

A4R

(mm)

size

LTR

October 2000 © TOSHIBA TEC MR-3011/3012 SIZE DETECTION

7-5

Page 46

8. FLOW CHART

8.1 Power ON

Standby

n Completion of Discharge for Last Original Carried Out

Power ON

Cover opened?

All sensors OFF?

YES

Initialization

started

YES

Jam

Initialization completed?

YES

Empty sensor

ON?

YES

Feed signal

“H” level?

YES

(Feeding Operation)

Standby

October 2000 © TOSHIBA TEC MR-3011/3012 FLOW CHART

8-1

Page 47

Jam

Original

is on tray?

YES

Separation

started

Separation

completed?

YES

Ready for

feeding?

YES

Feeding

operation started

Mixed

original signal

“H” level?

YES

Switchback

possible?

YES

Switchback

started?

Switchback

completed?

YES

Transport

signal

“H” level?

YES

Duplex

mode signal

“H” level?

YES

Feeding

operation

completed?

YES

October 2000 © TOSHIBA TEC MR-3011/3012 FLOW CHART

8-2

(Scanning

one side

of original)

(Scanning

two sides of

original)

Page 48

Scanning of one

side started

Next original

is on tray?

YES

Ready for

separation?

YES

(Separation)

Scanning

completed?

YES

Last original carried out?

YES

Standby

NONO

October 2000 © TOSHIBA TEC MR-3011/3012 FLOW CHART

8-3

Page 49

Scanning of front side of

original started

Next original

is on tray?

YES

Ready for

separation?

YES

Separation

started

Separation

completed?

YES

Reverse feeding

started

Reverse

feeding completed?

YES

Transport signal

“H” level?

YES

Scanning of back

side of original

started

Back side scanning

completed?

YES

Reverse discharge

Scanning of

front side

completed?

YES

Registration for

back side of

original started

Back side

registration

completed?

YES

October 2000 © TOSHIBA TEC MR-3011/3012 FLOW CHART

8-4

started

Is there

a separated

original ?

YES

(Feeding operation)

Last original

finished

YES

Standby

Page 50

8.2 Initialization Control

Initialization

control

Registration sensor ON?

Original length

sensor ON?

Original

width sensor

ON?

Feed motor

reverse rotation

Feed motor rotates

for a certain

number of pulses

YES

Reverse sensor

ON?

Reverse motor

reverse rotation

Read sensor

ON?

Exit sensor

ON?

Read motor

forward rotation

YES

All sensors

OFF?

YES

Initialization

control

completed

Jam

Feed motor

braked

Certain period

of time

Feed motor

stopped

Certain period

of time

Read motor

rotates for a certain

number of pulses

Read motor

stopped

Reverse motor

rotates for a certain

number of pulses

Reverse motor

stopped

October 2000 © TOSHIBA TEC MR-3011/3012 FLOW CHART

8-5

Page 51

8.3 Control for Operation of Pickup Roller

Control

Empty sensor

ON?

YES

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

8-6

Page 52

8.4 Control for Feeding Operation

Feeding operation

control

Feed motor

stopped?

YES

Feed motor

reverse rotation

First page?

YES

Read motor

forward rotation

Feed motor

rotates for a certain

number of pulses

Original length

sensor OFF?

YES

Feed motor

braked

Certain period

of time

Feed motor

stopped

Pickup roller

lowered

Feed motor

braked

Certain period

of time

Feed motor

reverse rotation

October 2000 © TOSHIBA TEC MR-3011/3012 FLOW CHART

8-7

Read sensor

ON?

YES

Read motor

rotates for a certain

number of pulses

Read motor

stopped

Control for feeding

operation completed

Page 53

8.5 Control for Separation

Control for separation

Feed motor

stopped?

YES

Feed motor

forward rotation

Registration sensor ON?

YES

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

8-8

Page 54

8.6 Control for Switchback Operation

Switchback

control

Read motor

forward rotation

Original length

sensor OFF?

YES

Read motor rotates

for a certain

number of pulse

Read motor

stopped

Certain period

of time

Read motor

stopped

Read motor

forward rotation

Read sensor

ON?

YES

Read motor rotates

for a certain

number of pulse

Read motor

stopped

Read motor

reverse rotation

Read sensor

OFF?

YES

Read motor

rotates for a certain

number of pulse

October 2000 © TOSHIBA TEC MR-3011/3012 FLOW CHART

8-9

Control for

switchback

operation completed

Page 55

8.7 Control for One Side Scanning

One side scanning

control

Read motor

forward rotation

Read motor rotates

for a certain

number of pulses

Scanning

started

Exit sensor

ON?

YES

Read sensor

OFF?

Exit sensor

OFF?

YES

Last original?

YES

Read motor rotates

for a certain

number of pulses

Read motor

stopped

Control for one

side scanning

completed

YES

Read motor rotates

for a certain

number of pulses

Scanning

completed

October 2000 © TOSHIBA TEC MR-3011/3012 FLOW CHART

8-10

Page 56

8.8 Control for Front Side Scanning

Front side

scanning control

Reverse solenoid

Read motor

forward rotation

Read motor rotates

for a certain

number of pulses

Scanning

completed

Read motor rotates

for a certain

number of pulses

Scanning

started

Reverse sensor

ON?

YES

Read motor rotates

for a certain

number of pulses

Reverse sensor

OFF?

YES

Read motor

stopped

Reverse motor

rotates for a certain

number of pulses

Reverse motor

stopped

Certain period

of time

Reverse motor

forward rotation?

Control for

front side

scanning completed

Read sensor

OFF?

YES

October 2000 © TOSHIBA TEC MR-3011/3012 FLOW CHART

8-11

Page 57

8.9 Control for Reverse Feeding

Reverse

feeding control

Read motor

forward rotation

Reverse motor

reverse rotation

Read sensor

ON?

YES

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

8.10 Control for Back Side Registration

Back side

registration command

Reverse motor

reverse rotation

Reverse sensor

ON?

YES

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

8.11 Control for Back Side Scanning

Control for

back side scanning

Read motor

foward rotation

Reverse motor

reverse rotation

Read motor

rotates for a certain

number of pulses

Scanning

started

Reverse motor

rotates for a certain

number of pulses

Reverse motor

stopped

Reverse sensor

OFF?

YES

Read motor

stopped

Reverse solenoid

OFF

Reverse motor

rotates for a certain

number of pulses

Reverse motor

stopped

Certain period

of time

Reverse motor

forward rotation

Read sensor

OFF?

YES

Read motor rotates

for a certain

number of pulses

Scanning

completed

October 2000 © TOSHIBA TEC MR-3011/3012 FLOW CHART

8-14

Control for

back side scanning

completed

Page 60

8.12 Control for Reverse Discharge

Control for

reverse discharge

Reverse motor

reverse rotation

Exit sensor

OFF?

Read motor

forward rotation

Reverse sensor

ON?

YES

Reverse motor

rotates for a certain

number of pulses

Last original?

Feeding operation

started

YES

Last original?

YES

Read motor

rotates for a certain

number of pulses

Read motor

stopped

Control for

reverse discharge

completed

Reverse sensor

OFF?

YES

Reverse motor

stopped

October 2000 © TOSHIBA TEC MR-3011/3012 FLOW CHART

8-15

Page 61

9. TIMING CHART

9.1 DP1600 Three A4 sheets single-side feeding

Exposure timeExposure time

4.71

0.08

2.93

0.08

4.38

0.08

2.93

0.08

4.38

0.180.181.68

0.08

0.490.08

2.970.550.55

0.74

0.17

1.73

0.49

2.94

4.39

2.23

3.69

4.74

0.21

0.24

2.930.564.382.001.460.27

4.381.971.421.971.423.41

2.530.092.530.093.991.56

3.500.720.512.101.950.37

2.65

Exposure time

PRE-FED

2.00

LHL

SCN-STR

ORG-FAC

1.58

1.581.48

1.48

0.10

LHL

DF-ACT

ORG-IN

1.58

ORG-STP

1.94

ORG-TR

October 2000 © TOSHIBA TEC MR-3011/3012 TIMING CHART

3.19

2.02

1.86

1.66

1.50

1.46

0.93

0.43

0.39

0.17

STOP

CW(H)

CW(L)

CCW(L)

CCW(M)

CCW(H)

FMOT

1.64

CW(H)

1.68

0.45

STOP

CW(L)

RDMOT

CW(L)

CW(H)

STOP

CCW(L)

RVMOT

CCW(H)

RSOL

OFF

REG-SNS

LENG-SNS

OFF

READ-SNS

OFF

EXIT-SNS

RVR-SNS

OFF

EMP-SNS

9-1

Page 62

9.2 DP1600 Two A4 sheets duplex feeding

00000

2.52

Exposure timeExposure timeExposure timeExposure time

2.83

2.73

2.45

2.35

2.93

2.55

2.83

2.45

0.94

3.17

2.78

1.58

2.36

2.48

2.42

2.08

2.80

0.92 0.92

1.03

2.841.52

2.46

0.66

0.95

1.05

2.84

1.54

4.04

4.50

2.801.44

2.022.02

0.952.460.951.68

2.361.981.470.27

2.381.502.381.50

2.001.120.923.983.181.120.923.582.001.100.903.983.181.120.922.80

5.162.745.242.865.162.744.001.58

2.752.181.970.37

2.28

0.10

1.05

0.95

2.80

1.64

CW(M)

CW(H)

0.92

STOP

CW(L)

1.03

2.84

1.52

1.68

0.45

0.66

1.05

0.95

CW(L)

CW(H)

2.84

1.54

STOP

4.50

3.28

CCW(L)

2.80

1.44

CCW(M)

CCW(H)

OFF

0.94

2.83

2.73

1.59

1.49

2.93

2.83

2.73

1.69

1.59

1.49

LHL

1.94

1.59

3.16

0.94

2.19

1.94

2.00

LHL

1.66

1.46

1.50

0.43

0.39

0.17

CW(H)

CW(L)

STOP

CCW(L)

0.93

CCW(M)

CCW(H)

ORG-IN

DF-ACT

ORG-TR

ORG-STP

ORG-FAC

PRE-FED

SCN-STR

FMOT

October 2000 © TOSHIBA TEC MR-3011/3012 TIMING CHART

RDMOT

9-2

RVMOT

RSOL

REG-SNS

LENG-SNS

RVR-SNS

READ-SNS

EMP-SNS

EXIT-SNS

Page 63

9.3 DP2500 Three A4 sheets single-side feeding

Exposure timeExposure timeExposure time

000

3.47

0.07

3.66

0.07

3.66

0.07

3.66

0.07

3.66

0.170.171.681.58

0.07

0.36

0.07

2.17

1.78

0.52

0.14

1.09

0.34

3.68

2.12

3.63

1.61

3.47

0.12

0.14

2.143.621.931.460.27

0.41

3.231.421.061.421.062.96

1.850.041.850.043.381.56

0.540.510.372.051.890.37

1.94

0.10

ORG-IN

1.58

1.48

1.58

1.48

LHL

DF-ACT

ORG-TR

ORG-STP

1.88

PRE-FED

1.92

LHL

SCN-STR

ORG-FAC

3.11

2.62

2.02

1.86

1.66

1.50

1.46

0.43

0.390.17

STOP

CW(H)

CW(L)

CCW(M)

CCW(H)

CCW(L)

FMOT

0.93

1.64

CW(H)

CW(L)

RDMOT

1.68

0.45

STOP

CW(L)

CW(H)

STOP

CCW(L)

RVMOT

CCW(H)

RSOL

OFF

LENG-SNS

OFF

READ-SNS

REG-SNS

OFF

RVR-SNS

OFF

EXIT-SNS

OFF

EMP-SNS

October 2000 © TOSHIBA TEC MR-3011/3012 TIMING CHART

9-3

Page 64

9.4 DP2500 Two A4 sheets duplex feeding

00000

2.34

Exposure timeExposure timeExposure timeExposure time

2.66

2.56

2.29

2.19

2.76

2.39

2.66

2.29

0.76

0.77

2.92

2.542.93

1.40

2.19

1.90

2.34

2.26

0.762.650.77

0.90

1.38 2.702.31

0.48

0.76

0.86

2.701.38

3.46

2.65 3.92

1.26

1.84

0.742.311.68 0.74

2.181.961.470.27

2.211.322.211.32

1.850.940.743.542.940.940.743.151.850.940.743.542.940.940.762.53

4.412.574.012.244.412.573.391.57

2.532.051.890.37

2.12

0.10

0.77

2.65

2.55

1.58

1.48

2.75

2.65

2.55

0.76

2.02

1.68

1.58

1.48

LHL

1.88

1.58

1.92

LHL

0.39

CW(H)

1.66

0.43

0.17

STOP

CW(L)

1.86

1.50

CCW(L)

1.46

0.93

CCW(M)

CCW(H)

0.76

2.65

0.77

1.64

CW(H)

CW(L)

0.90

2.70

1.38

1.68

0.45

STOP

0.48

0.76

0.86

0.76

CW(L)

CW(H)

0.86

2.70

1.38

2.86

STOP

CCW(L)

3.92

2.65

1.26

CCW(H)

OFF

ORG-IN

DF-ACT

ORG-TR

ORG-STP

ORG-FAC

PRE-FED

SCN-STR

FMOT

October 2000 © TOSHIBA TEC MR-3011/3012 TIMING CHART

RDMOT

9-4

RVMOT

RSOL

REG-SNS

LENG-SNS

RVR-SNS

READ-SNS

EMP-SNS

EXIT-SNS

Page 65

9.5 DP3500/4500 Three A4 sheets single-side feeding

Exposure timeExposure timeExposure time

000

1.97

0.08

1.20

0.08

2.24

0.081.20

0.08

2.24

0.180.08

0.08

0.180.08

1.21

0.200.201.27

0.42

1.43

0.15

0.60

1.66

0.18

1.17

2.23

0.87

1.93

1.97

0.08

0.081.11

0.10

0.101.13

1.160.252.211.280.990.27

1.060.021.06

0.22

1.12

0.330.221.381.240.36

0.022.071.04

1.83 1.820.790.610.790.61

1.231.13

ORG-STP

1.24

ORG-TR

ORG-FAC

PRE-FED

SCN-STR

0.10

1.13

1.01

ORG-IN

1.13

1.01

LHL

DF-ACT

October 2000 © TOSHIBA TEC MR-3011/3012 TIMING CHART

1.21

0.390.17

CW(H)

0.43

STOP

CW(L)

FMOT

1.24

1.05

1.01

CCW(H)

CCW(L)

0.70

9-5

0.44

STOP

RDMOT

CW(L)

CW(H)

CCW

STOP

RVMOT

RSOL

OFF

REG-SNS

LENG-SNS

OFF

RVR-SNS

READ-SNS

OFF

EXIT-SNS

OFF

EMP-SNS

Page 66

9.6 DP3500/4500 Two A4 sheets duplex feeding

1.99

Exposure timeExposure time

1.63

1.53

2.03

1.93

1.73

2.13

1.63

2.03

0.420.420.420.42

1.752.151.27 1.75

1.34

1.92

1.61

2.120.550.42

1.58

0.41

2.01

0.421.58

1.63

0.83

2.03

0.55

0.220.220.22 0.22

0.42

0.52

1.61

1.63

0.83

1.61

0.52

2.68

1.58

0.79

0.38 0.382.03

1.901.320.990.27

1.990.981.990.98

2.591.512.981.952.591.512.071.04

2.131.381.240.36

1.87

Exposure timeExposure time

0.10

ORG-IN

1.63

1.53

1.11

1.01

DF-ACT

1.63

1.11

1.01

LHL

1.73

1.53

1.21

ORG-STP

1.63

1.11

ORG-TR

1.24

PRE-FED

LHL

SCN-STR

ORG-FAC

1.630.83

1.63

1.58

0.83

0.52

0.41

1.43

1.24

1.21

1.05

1.01

0.43

0.17

0.39

STOP

CW(H)

CW(L)

CCW(L)

FMOT

1.11

0.70

0.44

CCW(H)

1.13

STOP

RDMOT

0.42

CW(L)

CW(H)

1.78

CCW

STOP

RVMOT

0.79

1.13

RSOL

OFF

LENG-SNS

OFF

READ-SNS

REG-SNS

1.59 1.570.570.382.111.760.570.382.491.570.570.382.111.760.570.38

OFF

RVR-SNS

OFF

EXIT-SNS

OFF

EMP-SNS

October 2000 © TOSHIBA TEC MR-3011/3012 TIMING CHART

9-6

Page 67

10. DESCRIPTION OF CIRCUITS

10.1 Input Circuits for Original Length Sensor, Read Sensor and Reverse Sensor

Since original length sensor, read sensor and reverse sensor have almost the same circuit configurations (the reference voltage of comparator for read sensor input circuit can be set by D/A output), the input circuits for the read sensor and reverse sensor are not described. The following is the input circuit for the original length sensor.

LED1

Original length sensor

A 2

PT1

K 1

+5V

R35

R41

SGND

C11

SGND

LENGSLED

1 2 3

+5V

R16

SGND

1 2

R44

SGND

821

IC4.3

R32

SGND

R29

1 B

LENGS

CN3.1 +5V

CN3.2 *LENGS CN3.3

1 2

R38

IC3.3

TP10

1 2

R17

+5V

TP12

TP11

SIZEL_5

SIZEL_5_AD

SIZEL_5_DA

This circuit is an input circuit for the original length sensor and consists of a voltage-current conversion circuit which adjusts the amount of light of the infrared LED and the voltage comparison circuit which compares the voltage output from a phototransistor (PTR) with a reference voltage and converts the output voltage into digital signals. The original length sensor is a mirror reflection sensor, and consists of a pair of emission elements (infrared LEDs) and a light receiving element (PTR). Both elements have a light axis running in the same direction. There is a mirror on the extended light axis of these elements. When there is no original between the elements and the mirror, infrared light emitted from LED is reflected by PTR in high reflectance. If there is an original, light emission to the mirror and reflected light from the mirror are blocked by the original, and the reflected light enter ing PTR becomes extremely small. When a large amount of light is entering PTR (this means there is no original) the optical current flowing in the PTR is increased, and the voltage of IC3-10pin becomes higher due to a drop in voltage caused by R44. IC3 is a comparator which compares the reference voltage input to 11pin (non-reverse input terminal) with the signal voltage of 10pin (reverse input ter minal). If the voltage of 10pin is higher, the output level (IC3-10pin) is "L". On the contrary, when the amount of the incoming light is small (this means there is an original), the voltage of IC310pin is low and the level becomes "H". R16, C6 and C7 are noise filters. This circuit has an automatic sensitivity adjustment function to control the unevenness of the sensor sensitivity. Uneven sensor sensitivity is corrected by controlling the machine to have a constant PTR voltage when there is no original. The intensity of the infrared light emitted from the LEDs is changed to adjust the PTR voltage. When the sensor sensitivity adjustment mode is selected, the PTR output voltage (analog value) is measured by the A/D input terminals of the CPU (scanner side). The D/A output voltage of the CPU is changed to keep the 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 MR-3011/3012 DESCRIPTION OF CIRCUITS

10-1

Page 68

10.2 Irruptive Current Control Circuit

C_OPN

R73

1 2

+5V

TP41

ZD4

R110

RADF open/close switch

OPNSW

Jam access cover switch

JAMSW

+24V Power sourse

CN8.1

*DFOPN CN8.2 DFOPN CN8.3 +24V

DF+24V

CN8.4 CN8.5

CVROPN CN8.6

*DFOPN

CN1.1

+24V CN1.2

+24V

CN1.3

PGND CN1.4

PGND

1 2 3

4 5 6

1 2

3 4

TP30

FUSE1

PGND TP25

+24V

TP26+24V

C22

PGND

DF+24V

R134

PGND

R87

R111

C53

PGND

R71

1 2

C52

ZD5

K2A

E 3

SGND

PTH1

2 1

1 2

Q14

R72

R114

TP39

PM+24V

C1 4

C2 5

R128

R74

Q8 2

2 1

PGND

R112

2 1

R127

This circuit controls the irruptive current flowing into the current regeneration condensers (C40 and C112) mounted on the drive circuits for the read motor and reverse motor to a cer tain value. The circuit consists of a posister (PTH1) which controls the current and FET (Q14) which supplies the current in normal conditions. Base current is not supplied to Q8 and it becomes OFF after the RADF open/close switch and jam access cover switch are turned OFF till the cathode voltage of ZD5 reaches the zener voltage. At this time, both voltages are set by R111 and C53. Q14 is turned OFF correspondingly to supply the current to PTH1. When the cathode voltage of ZD5 exceeds the zener voltage after the time allowance given by R111 and C53, a base current is supplied to Q8 to turn it ON and Q14 comes ON correspondingly. The current limitation is canceled and the current flowing in the PTH1 starts to be supplied to Q14.

R74, R112, R127 and R128 are discharge resistors to capture charge stored in consisting C40 and C112 right after either of the RADF open/close switch or jam access cover switch is opened. The circuit consisted of R87, 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 MR-3011/3012 DESCRIPTION OF CIRCUITS

10-2

Page 69

10.3 Drive Circuit for Read Motor

+5V

Vcc2

IC10

C25

MOI

SGNDPGND

C47

C48

C49

PM+24V

PH+24V CN10.6

PH+24V CN10.5

A CN10.4

C50

C112

PGND

CN10.3

CN10.2B

CN10.1*B

READ motor RDMOT

C21

C32

M34*A

CWB

CLK

ENABLE

*RESET

Vref

C36

SGND

C31

READ_M1

READ_M2

READ_CMD

READ_CLK

READ_ON

*RESET

REACM_DA

TP381TP371TP311TP361TP35

TP34

R85

1 21

RA6.2

211

RA6.3

RA6.1

110

RA6.4

711

R104

215

R99

213

IC4.4

C33R105

TP33

C27

SGND

C28

C30

C29

This circuit controls the rotation/stoppage and the direction of rotation, excitation mode and motor current of the read motor. A drive clock signal (READM_CLK) and rotation direction signal (CWB) are input to control the speed and direction of the motor rotation. When the CPU judges the level of the enabling signal is "L", IC10-15pin (READ_EN) becomes "L" level and turns OFF all the outputs from the drive IC regardless of the state of other signals. 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.

10-3

Page 70

10.4 Drive Circuit for Reverse Motor

RETM_A

RETM_*A

RETM_B

RETM_*B

RETM_RA

TP52

TP43

TP45

R86

1 12

TP441TP53

SGND

RA4.3

RA4.4

TP42

R83

C26R89

212

R97

PGND

RA4.2

RA4.1

PGND

R82

121

C37C38R96

C55

K 1

ZD3

K 1

IC9

INA

IN*A

INB

IN*B

RsA

RsB

PGA

PGB

VrefA

VrefB

VsA

VsB

NC1

NC2

NC3

NC4

OutA

Out*A

COM

OutB

Out*B

C/RA C/RB

VCC

NC6 NC5

12 10 14 15 18

3 25

+5V

1 27

26 19

C54

R93 1+

R92

C67

SGND

PM+24V

PH+24V CN12.6

PGND

PH+24V CN12.5

A CN12.4

*A CN12.3

B CN12.2

*B CN12.1

C40

Reverse motor RVMOT

K 1

This circuit controls the rotation/stoppage, direction of rotation and motor current of the reverse motor. The following drive pattern signals are input to IC9-6, 7, 21 and 22pins to control the direction and speed of motor rotation. 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

10-4

Page 71

10.5 Drive Circuit for Feed Motor

DF+24V

SW1

TP48

PREM_C

PREM_A

PREM_B

PREM_PWM

PREM_LMT

PREM_D

TP46

TP47

TP48

TP54

IC6.2

A IC6.3

A IC6.4

+5V

R42

R113

SGND

2 1

3 B

1 B2

IC1.6

13 12

RCL

This circuit controls the rotation/stoppage and the direction of the rotation of the feed motor. The feed motor has an encoder sensor to feed back signals controlling the number and stoppage of rotations to the CPU. Control signals from the CPU controls the direction and stoppage of the motor rotation. These control signals (PREM_A, PREM_B, PREM_C and PREM_D) are changed as shown in the table below.

4C1

Q23

2 E

PGND

C2 5

R123

IC8.1

IC6.1

R80

R129

R118

C108

1 G

Q22

Q20 Q19

K 1

A 2

Q21

D2D1

???

S 3

1 G

1 2

1 G

R95

C109

R122

2 1

KMOT1 CN11.1

KMOT2 CN11.2

Feed motor FMOT

PREM_A

Low Low

PREM_B

Low

High

PREM_C

Low

High

PREM_D

Low Low

Q19 OFF OFF

Q20

OFF

Q21

OFF

Q22 OFF OFF

State of Motor

OFF

Forward

rotation

High

Low

High

OFF

Reverse

rotation

High

Low

OFF

Braked

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.

10-5

Page 72

10.6 Current Control Circuit for Feed Motor

PREM_LMT

R131

+5V

+24V

R133

ZD2

C23

12KA

6 5

R84

TP32

IC8.2

R88

R79

Feed motor drive circuit

R91

R90

PGND

This circuit is a current control circuit to control the current consumption by the DC+24V power supply, and consists of a resistor for current detection and a voltage comparator. Current supplied to the feed motor is converted into voltage at R90 and R91. If the voltage value is higher than the reference voltage which is the total of R84, R88, R133 and ZD2, the output level of IC8 (comparator) is judged as "L" and the feed motor is turned OFF. The feed motor is turned ON again when the current consumption is decreased to the reference voltage or becomes lower.

10.7 Drive Circuit for Fan Motor

+5V

R76

DC+24V

Q16

PGND

FANLK CN9.2

FAN

PGND CN9.3

CN9.1

Fan motor FAN

D13

FAN_LOCK

FAN

TP50

TP51

R121

C64

SGND

R132

Q12

SGND

This circuit controls the rotation/stoppage of the fan motor. When the output level of CPU is "H", Q12 and Q16 are turned ON and drive the fan motor. At this time, a lock detection signal is output from the fan motor and sent to the CPU. The level of the lock detection signal is "L" during normal operation and becomes "H" during abnor mal operation.

10-6

Page 73

10.8 Drive Circuit for Reverse Solenoid

TP49

DF+24V

D12

DF+24V CN5.4

*RSOL

CN5.5

Reverse solenoid RSOL

RKNSOL_PWM

R115

SGND

R116

PGND

Q13

This circuit controls the closing/opening of the flapper of the reverse solenoid. When the level of RKNSOL_PWM is "H", Q13 is turned ON and the flapper is closed. The drive signal for the solenoid is a PWM signal. The flapper is closed in the maximum torque of the solenoid and the duty value becomes 100% when the flapper is started to be closed. The duty value is then decreased down to 50% and the flapper is kept closed while the temperature rising of the solenoid is lowered.

10.9 Reset Circuit

+5V

1 2

C115

VCC

GND

RES

IC13

7 1

C113

C57

*RES

VREF

SGND

C116

1 2

C114

R125

WDT_CK

*RESET

SGND

This circuit generates a CPU reset signal when the power is turned ON and the power voltage is cut off or lowered instantaneously. This circuit has a watchdog timer for diagnosis of the CPU system operation. The level of IC13-8pin (*RES) is normally "H" after the power is turned ON. However, when the power is turned OFF or the voltage of the +5V power supply is decreased to 4.2V or lower for some reason, the level of IC3-8pin becomes "L" and the CPU is reset. A clock with a fixed cycle is input to IC13-3pin (CK) from the CPU to clear the watchdog timer of 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.

10-7

Page 74

10.10 EEPROM Circuit

NC1

NC2

IC12

CLK

+5V

R108

RA1.1

1 2

RA1.4

8 7

RA1.3

CS CLK DI D0

SGND

This circuit is an EEPROM to store ADF data and its peripheral circuit. IC12 is a memory to store the adjustment value for reflection-type sensors, and data are sent/received between IC12 and CPU using a 4-line type serial interface. Data saved in the IC12 is not erased even if the power is turned OFF. IC12-1pin (CS) is a chip selection terminal and its level is "H" when data are being sent/received. 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.

10-8

Page 75

11. DESCRIPTION OF INPUT/OUTPUT SIGNALS

11.1 REQ Signal, ACK Signal and TxD Signal

+5V

CN2.1 ACK

CN2.6 TxD

CN2.10 REQ

SGND

R24

R23

R22

R27

1 2

C118

R26

1 2

C119

R25

C120

TP5

IC1.1

ACK

ACK Y

IC1.3

61 2 1

IC1.2

45 6 1

IC2.2

IC2.1

IC2.3

TP3

TP1

ACK

RxD

REQ

DA3

+5V

DA2

+5V

DA1

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.

11-1

Page 76

11.2 DF-ACK Signal, DF-REQ Signal and RxD Signal

DF-ACK

DF-REQ

RxDCN2.4

SGND

1 2

Q2.1

Q2.2

Q1.2

1 2

+5V

1 2

IC2.5

IC2.4

IC2.6

CN2.8

CN2.9

+5V

TP6

R11

+5V

R12

R13

TP2

TP4

DF_ACK

DF_REQ

TXD

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.

11-2

Page 77

11.3 Input Circuits for Sensors

+5V

Original length sensor

Feed motor clock sensor

Original width sensor 1

Original width sensor 2

Original width sensor 3

RADF open/close switch

LENGS

Read sensor

READS

Reverse sensor

RVRS

MCLK

Tray sensor

TRYS

Registration sensor

REGS

SIZES1

SIZES2

SIZES3

Exit sensor

EXITS

OPNSN

Empty sensor

EMPS

CN3.1 +5V CN3.2 *LENGS CN3.3

CN6.1 CN6.2 CN6.3

CN4.1 CN4.2 CN4.3

CN6.4 SGND

CN6.6

CN7.1 CN7.2 CN7.3

CN3.4 CN3.5 CN3.6

CN3.7 CN3.8 CN3.9

CN3.10 CN3.11 CN3.12

CN3.13 CN3.14 CN3.15

CN4.4 CN4.5 CN4.6

CN6.7 CN6.8 CN6.9

CN5.1 CN5.2 CN5.3

CN2.33EMPTY

1 2 3

LENGSLED

R29

+5V

*READS

READSLED

R30

E3 1

+5V

*RTNS

RTNSLED

R28

E3 1

+5V

MCLKCN6.5 +5V

TRYS+5V SGND TRYS

REGS+5V SGND REGS

SIZE1+5V SGND SIZES1

SIZE2+5V SGND SIZES2

SIZE3+5V SGND SIZES3

EXITS+5V SGND EXITS

DFOS+5V SGND DFOS

EMPS+5V SGND EMPS

4 5 6

1 2 3

4 5 6

7 8 9

10 11 12

13 14 15

4 5 6

7 8 9

1 2 3

SGND

Q3.2

R54

R60

SGND

R61

3 B

R59

IC4.3

IC4.1

IC4.2

R106

R58

SGND

R44

10 9

READ_5_RET

R45

3 2

R43

5 6

R57

R56

P+5V

R46

Q3.1

R16

1 2

R32

R18

R33

R14

R31

R137

E 2

SGND

TP10

TP13

TP7

1 1

2 1

R136

2 1

R78

R21

R64

R65

R66

R67

R68

R20

R17

1 2

R19

R15

+5V

SGND

TP12

TP11

TP15

R10

TP14

TP9

TP8

TP29

C34

TP17

C14

TP18

C16

TP19

C17

TP20

C18

TP21

C19

TP22

C20

TP23

C39

TP16

C13

SIZEL_5

SIZEL_5_AD

SIZEL_5_DA

READ_5

READ_5_AD

READ_5_DA

RET_5

RET_5_AD

RET_5_DA

EMC_CLK

TRY_5

REG_5

SIZE1_5

SIZE2_5

SIZE3_5

MISI_5

DF_5

EMP_5

+5V

SGND

C11

SGND

C12

SGND

C10

SGND

R48

R138

2 1

TP55

R107

RA3.4

RA3.3

SGND

R36

C51

+5V

SGND

RA3.2

R35

R41

R34

R40

RA3.1

R53

1 2

11 10

5 4

7 6

R81

R38

IC3.3

R39

IC3.2

R37

IC3.1

The above are circuits for the input signals from an optical sensor.

11-3

Page 78

Siginal logic

Name EMPS (Empty sensor) REGS (Registration sensor) EXITS (Exit sensor) SIZES 1 (Original width sensor 1) SIZES 2 (Original width sensor 2) SIZES 3 (Original width sensor 3) TRYS (Tray sensor) OPNSN (RADF open/close sensor) MCLK (Feed motor clock sensor) LENGS (Original length sensor)

READS (Read sensor) RVRS (Reverse sensor)

Connector level 5V ("1") Original not exist Original exists Original exists Original exists Original exists Original exists Original exists RADF closed Light path blocked Original not exist (connector voltage

1.69V or higher) Original not exist (connector voltage

1.70V or higher) Original not exist (connector voltage

1.69V or higher)

Connector level 0V ("0") Original exists Original not exist Original not exist Original not exist Original not exist Original not exist Original not exist RADF opened Light path not blocked Original exists (connector voltage lower than 1.69V) Original exists (connector voltage lower than 1.70V) Original exists (connector voltage lower than 1.69V)

11-4

Page 79

12. DISASSEMBLY AND ADJUSTMENT

12.1 Pickup Roller and Feed Roller

(1) Open the jam access cover. (2) Remove 2 screws and take off the cover guide.

Cover guide

(3) Remove the clips at the both sides of the pickup

roller unit. Slide the bushings and take off the pickup roller unit.

(4) Remove 2 clips and slide the feed roller, pickup

roller and pickup arm. Pull out the parallel pin and remove the pickup arm, pickup roller and feed roller.

Clip

Bushing Bushing

Pickup roller

Clip

Parallel pin

Clip

Pickup arm

Feed roller

12-1

Page 80

12.2 Separation Roller

(1) Open the jam access cover. (2) Remove 2 screws and take off the separation unit.

(3) Remove 2 clips and slide 2 bushings to remove

the separation roller from the holder.

Separation unit

Clip Clip

(4) Remove the E-ring, and pull out the shaft from the

serapation roller.

Holder

Separation roller

E-ring

12-2

Page 81

12.3 Reverse Solenoid

(1) Open the RADF. Remove one screw at the lower

part of the front cover.

Front cover

(2) Release 5 latches. Slide the front cover horizon-

tally and remove it.

(3) Open the platen unit. Disconnect one connector

and remove 2 screws. Take off the reverse solenoid.

Latches

Horizontaly

Platen unit

Connector

12-3

Page 82

12.4 Drive System

12.4.1 Fan motor

(1) Remove 3 screws and take off the rear cover.

(2) Disconnect one connector and take off the

binding band from the fan motor bracket. Remove one screw and take off the fan motor with the bracket attached.

Rear cover

Connector

(3) Remove 2 screws and remove the fan motor from

the bracket.

Binding band

12-4

Page 83

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.

(3) Loosen one belt tension screw. Remove 2 screws

and take the read motor apart from the bracket.

Connector

Binding band

Read motor

Belt tension screw

[B] Assembly and adjustment (4) Attach the read motor to the bracket, and fix it

temporarily with 2 screws while holding the read motor to the direction of the arrow.

(5) Attach the timing belt and hook on 2 springs.

Double-deck pulley

Spring

Timing belt

12-5

Page 84

(6) Loosen 2 screws which have been temporarily

fixed. Tighten then again to strain the timing belt.

Note: Make sure that the belt is not twisting.

(7) Tighten the belt tension screw temporarily while

bringing it up fully to the direction of the while arrow.

(8) Put the timing belt on the double-deck pulley and

pulley of the main unit. Attach the bracket with the read motor on the rear frame with 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.

Belt tension screw

12-6

Page 85

12.4.3 Read motor (MR-3012)

[A] Disassembly (1) Disconnect 2 connectors and remove 2 binding

bands, from read motor bracket.

(2) Remove 4 screws and take off the read motor with

the bracket attached.

Binding band

Connector

Binding band

Connector

(3) Detach 2 springs at the back of the bracket.

Remove 2 screws y and take off the bracket.

(4) Remove 2 screws x and take the read motor

apart from the motor plate.

[B] Assembly and adjustment (5) Attach the read motor to the motor plate with 2

screws x.

(6) Attach the motor plate to the bracket and fix it with

2 screws y temporarily.

(7) Hook on 2 springs.

Moter Plate

Bracket

Spring

(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.

12-7

Page 86

(9) Loosen 2 screws y which have been temporarily

fixed. Tighten them again to strain the timing belt.

Note: Make sure that the timing belt is not twisting.

12.4.4 RADF open/close switch

[A] Disassembly (1) Disconnect 3 connectors. (2) Remove one screw and take off the RADF open/

close switch with the bracket attached.

(3) Remove one screw and take the RADF open/

close switch apart from the bracket.

Connector

RADF open/close switch

[B] Assembly and adjustment (4) Attach the RADF open/close switch to the bracket.

Connect the connectors as shown in the right figure.

12-8

Gray

Orange

White

Page 87

12.4.5 Feed motor

(1) Remove the harness from the clamp and discon-

nect one connector.

(2) Remove 3 screws and take off the feed motor with

the bracket attached.

Connector

Clamp

(3) Remove the belt and encoder.

Remove 2 screws and take off the feed motor from the bracket.

Encoder

Belt

12-9

Page 88

12.4.6 Reverse motor

(1) Disconnect one connector. (2) Remove 2 screws and take off the reverse motor.

12.4.7 RADF open/close sensor

(1) Disconnect one connector. (2) Remove one screw and take off the RADF open/

close sensor with the bracket attached.

(3) Release the latches and remove the sensor from

the bracket.

Connector

12.4.8 PC board

(1) Disconnect 12 connectors and release 4 lock

supports. Take out the PC board

12.4.9 Jam access cover switch

[A] Disassembly

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.

Connector

PC board

Orange

White

12-10

Gray

Page 89

12.4.10 Feed motor clock sensor

(1) Disconnect one connector and remove one screw.

Take off the feed motor clock sensor with the bracket attached.

(2) Release the latches and remove the feed motor

clock sensor.

Connector

Latch

12.5 Tray sensor

(1) Remove 3 screws at the back of the tray and take

off the cover from the tray.

(2) Disconnect one connector. (3) Release the latches of the sensor and take off the

tray sensor.

Tray sensor

Tray under

cover

Latch

12-11

Page 90

12.6 Empty Sensor, Registration Sensor, Original Width Sensor and Original Length Sensor

(1) Open the jam access cover.

Remove 2 screws and take off the separation unit.

(2) Open the reverse guide and take it off upward

while pushing it to the direction of the arrow.

(3) Turn over the tray and remove 2 screws fixing the

feeder guide.

Reverse guide

(4) Release the latches of the feeder guide and turn it

over.

(5) Disconnect the connectors and release the

latches. Remove the registration sensor, original width sensor and original length sensor.

Latches

Original width sensor

Feeder guide

Original width

sensor

Registration sensor

12-12

Empty sensor

Original length sensor

Page 91

12.7 Read Sensor

(1) Remove 2 screws and take off the sub cover.

(2) Remove one screw and disconnect one connec-

tor. Take off the read sensor.

Sub cover

12.8 Exit 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.

Reverse guide

Connector

12-13

Page 92

12.9 Reverse Sensor

(1) Remove 5 screws and take off the original

receiving tray.

(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.

12-14

Page 93

12.10 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

12-15

Page 94

12.11 Adustment of original registration f or reversing operation

Attach the bracket while matching protrusion with the center mark on the frame. Perfor m test copying. Make adjustment if the skew amount does not satisfy the specification.

Skew of paper

12-16

Page 95

12.12 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 proper ly, loosen the screws and adjust the position of the solenoid.

Corner

12-17

Page 96

12.13 Adjustment of RADF open/c lose switch

Adjust the position of the bracket so that the switch is turned ON while the RADF falls by its own weight (dimension A: 40 to 45 mm).

Glass surface

12-18

Page 97

12.14 Adjustment of RADF open/c lose sensor

Adjust the position of the bracket so that the sensor is turned ON while the RADF falls by its own weight (dimension A: 30 to 35 mm).

Glass surface

12-19

Page 98

12.15 Adjustment of image skew

Assemble the scanning guide and jump plate using the adjustment screw located at the hinge so that the gap between them is 1.1mm. Perfor m copying test. If the image does not satisfy the specification, make finer adjustment by adjustment screw at right side of hinge. Note: Loosen the fixing screw to perform the adjustment, and make sure to tighten it when it is finished.

Platen guide

fixing screw

adjustment screw

Gap 1.1mm

Jump plate

12-20

Page 99

12.16 Adjustment of height (RADF)

Make adjustment using the adjustment screws located at the right and left hinges so that the platen guide front holder and platen guide rear holder contact with the ADF original glass, and the height positioning stud contacts with the original glass.

Adjustment screw

Platen guide front holder Platen guide rear holder

ADF original glass

Height positioning stud

Original glass

12-21

Page 100

12.17 Intialization of EEPR OM and Adjustment of Sensors

When any of the PC board, original length sensor, and reverse sensor was replaced with new one, initialization of the EEPROM and adjustment of the sensors must be performed in the adjustment mode (05). Make sure that there is no original on the sensors and the RADF unit is closed before performing these initialization and adjustment. 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.

12-22

Toshiba MR3011 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

1. SPECIFICATION

2. CONFIGURATION

3. SECTIONAL VIEW AND DRIVE SYSTEM

3.1 Sectional View

3.2 Drive System

4. SYMBOLS AND LAYOUT OF ELECTRICAL PARTS / DIAGRAM OF SIGNAL BLOCKS

4.1 Symbols

4.2 Layout of Electrical Parts

4.3 Diagram of Signal Blocks

4.4 Description of Interface Signals

5. DESCRIPTION OF OPERATIONS

5.1 Single Side Feeding

5.2 Duplex Feeding

5.3 Single Side Feeding (for Mixed Sized Originals)

6. JAMMING

6.1 Feeding Jam

6.2 Transport Jam

6.3 Exit Jam

6.4 Reversing Jam

7. ORIGINAL SIZE DETECTION

7.1 Method of Original Size Detection (for Standard Sized Originals)

7.3 Method of Original Size Detection (for Mixed Sized Original)

7.4 Relation between Status of Sensor and Original Size (for Mixed Sized Originals)

8. FLOW CHART

9. TIMING CHART

10. DESCRIPTION OF CIRCUITS

10.1 Input Circuits for Original Length Sensor, Read Sensor and Reverse Sensor

10.2 Irruptive Current Control Circuit

10.3 Drive Circuit for Read Motor

10.4 Drive Circuit for Reverse Motor

10.5 Drive Circuit for Feed Motor

10.6 Current Control Circuit for Feed Motor

10.7 Drive Circuit for Fan Motor

10.8 Drive Circuit for Reverse Solenoid

10.9 Reset Circuit

10.10 EEPROM Circuit

11. DESCRIPTION OF INPUT/OUTPUT SIGNALS

11.1 REQ Signal, ACK Signal and TxD Signal

11.2 DF-ACK Signal, DF-REQ Signal and RxD Signal

11.3 Input Circuits for Sensors

12.1 Pickup Roller and Feed Roller

12.2 Separation Roller

12.3 Reverse Solenoid

12.4 Drive System

12.4.1 Fan motor

12.4.2 Read motor (MR-3011)

12.4.3 Read motor (MR-3012)

12.4.4 RADF open/close switch

12.4.5 Feed motor

12.4.6 Reverse motor

12.4.7 RADF open/close sensor

12.4.8 PC board

12.4.9 Jam access cover switch

12.4.10 Feed motor clock sensor

12.5 Tray sensor

12.6 Empty Sensor, Registration Sensor, Original Width Sensor and Original Length Sensor

12.7 Read Sensor

12.8 Exit Sensor

12.9 Reverse Sensor

12.10 Adjustment of registration

12.11 Adustment of original registration f or reversing operation

12.12 Adjustment of reverse solenoid

12.13 Adjustment of RADF open/c lose switch

12.14 Adjustment of RADF open/c lose sensor

12.15 Adjustment of image skew

12.16 Adjustment of height (RADF)

12.17 Intialization of EEPR OM and Adjustment of Sensors