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MR-3022, MR-3018 service manual 19 09/05
Models:
MR-3018
MR-3022
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Troubleshooting
Specification
Diagram of Signal Blocks
Maintenance
Reset Circuit
Assembly of PC Board
Scanning start signal
Adjustment of Position
Jam access cover
Connector
Page 117
Image 117
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© 2005 - 2011 TOSHIBA TEC CORPORATION All rights reserved
MR-3018/3020/3021/3022
CIRCUIT DIAGRAM / HARNESS DIAGRAM
8 - 19 09/05
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Page 118
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Image 117
Page 116
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Contents
MR-3018/3020/3021/3022
11/12
Trademarks
11/12
Page
Contents
Rewriting ROM Firmware Updating
Circuit Diagram / Harness Diagram
MR-3018/3020 MR-3021/3022
Specifications
Specifications
Main Components
Location Components
06/09
Sectional View
S12
Electric Parts Layout
S11 S7 S6 S5
S8S4 S10
Sensors and Switches
Symbols and Functions of Various Components
Motors
Solenoid
Diagram of Signal Blocks
Description of Interface Signals
Outline
Feed motor drive section
Read motor drive section
Original feed motor drive section
Intermediate transfer roller
Read motor drive section
Gate solenoid Reverse flap Exit/reverse motor
Original exit/reverse motor drive section
Reverse
Exit/reverse roller
Original tray width sensor
Original Size Detection
= high level Open = low level Short
Original width size
A4 series width sizes mixed at B4 / B5 standard
A4 series width sizes mixed at A3 / A4 standard
A4 series width sizes mixed at A4-R standard
A4 series width sizes mixed at B5-R standard
LT series ORG-SRS
LT series width sizes mixed at LD / LT standard
LT series width sizes mixed at LG / LT-R standard
Cover OPEN? All sensors OFF?
Power on Standby Radf jam access
Empty sensor ON?
Jam
Certain period Time passed?
Original
Read motor rotates
Registration roller rotates. Feed motor rotates reverse
Certain period
Scanning start signal
Duplex?
Sent level High
Jam Read sensor OFF?
Original exit/reverse Sensor ON?
Certain period Time passed?
Read motor stops Certain period Time passed?
Gate solenoid on
Scanning start signal sent level Low Scanning completed
Transport request Signal received?
Jam Original exit/reverse motor and read motor stop
Read motor and exit/reverse motor rotate at requested speed
Exposure and scanning start Original
Scanning completed
Sensor OFF?
Original exit/reverse motor and read motor stop
Original intermediate Transport sensor ON?
Jam Original exit/reverse Sensor OFF?
Drive Circuit for Feed Motor
Description of Circuit
Drive Circuit for Read Motor
Drive Circuit for FAN Motor
Drive Circuit for Exit Motor
Drive Circuit for Pickup Solenoid
Reset Circuit
Drive Circuit for Gate Solenoid
Cover
Front cover
Front cover
Rear cover
Jam access cover
Rear cover
Pin
Remove 1 screw and the hinge pin
Take off the jam access cover by sliding it
Left cover
Left cover
Original tray
Original reverse tray
Original reverse tray
Paper feeder unit
Roller
Remove 1 clip and slide 2 bushings
Take off the paper feeder unit
Feed roller PM
Pickup roller PM
Shaft
Clip Pickup roller
Pull out the shaft and take off the feed roller
Slide the pulley and remove 1 pin
Pulley
Shaft
Separation roller PM
Take off the jam access guide
Feeder lower guide
Stay
Exit/reverse roller
Registration roller
Exit/reverse roller
Exit guide
Intermediate transport roller
Pre-reading guide
Hinge pin
Pre-reading guide
Pre-reading roller
Connector
Post-reading roller
Screw Bushing
Bushing
Flange Bearing Bushing
Holder
Platen guide
Upper guide
Reverse registration roller
Post-reading roller
Ring
Roller
Open the RADF. Take off the reverse regis- tration roller
Fan motor M4
Motor / Motor drive section
Read motor M2
Read motor
Spring
Read motor drive section
Spring
Harness clamp
Take off 1 timing belt and 4 bushings
Remove 3 screws and then take off the bracket
Timing belt
Screw Tensioner Ring
Original feed motor drive section
Original feed motor M1
Ring Bushing Bracket White Black
Take off the timing belt, bushings and pulley
Red
09/01
Original exit/reverse motor M3
Disconnect 1 connector from the Radf con
Original feed motor drive
Section
Original pickup solenoid SOL1
Solenoid
Original pickup solenoid
Bracket
Gate solenoid SOL2
Mark-off line
Gate solenoid
Original tray width sensor S2
Sensor/switch
Original tray sensor S1
Release 2 latches and take off the original tray sensor
Original tray sensor
Jam access cover sensor
Jam access cover sensor S11
Original empty sensor S3
Metal plate cover
Remove 2 screws and take off the bracket
Original length detection sensor S4
Original empty sensor Original length detection sensor
Take off the feeder lower guide Feeder lower guide
Original registration sensor S5
Original width detection sensor-1 S6
Original width detection sensor-2 S7
Take off the pre-reading upper guide Pre-reading guide
Read sensor S9
Original intermediate transport sensor S8
Original exit/reverse sensor S10
Original exit/reverse sensor
Take off the original jam access cover
Original jam access cover opening/closing switch SW1
Radf opening/closing sensor S12
Disconnect 3 terminals. Remove 1 screw
PC Board
Radf control PC board ADF board
ADF board
Hinge stopper
Others
Remove 1 screw and then take off the hinge
Stopper
Disassembly and Assembly
Checking
Adjustment of Position
Adjustment
05/12
05/12
Install the bracket on the left-hand hinge
Install the right-hand hinge screw at the rear
Side
MR-3021/3022 only
05/12
~0.5mm 0mm
Adjustment of Height
Turn it clockwise
Turn it counterclockwise Heightened
19 Chart Original
Adjustment of Skew
Adjustment Simplex copying
05/12
26 Chart Original
Adjustment of the Leading Edge Position
Adjustment
11/12
Adjustment of Horizontal Position
11/12
Adjustment of Copy Ratio
11/12
Adjustment of Radf Opening/Closing Sensor
Adjustment
Troubleshooting for Mechanical Errors
Troubleshooting
Check or replace the Radf board
Troubleshooting for Electrical Errors
Jam
Feed signal reception jam
Jam not reaching the original registration sensor
Jam not reaching the read sensor
Stop jam at the original registration sensor
Radf jam access cover open jam
Stop jam at the read sensor
Stop jam at the original exit/reverse sensor
Radf open jam
Cover open jam in the read ready status
11/04
09/05
Symbols used in the checklist
Periodic Maintenance
Rewriting ROM Firmware Updating
Component side Soldered side
Assembly of PC Board
Circuit
Diagram
2005 2011 Toshiba TEC Corporation All rights reserved
1 MR-3018/3020
Control PC Board Circuit
Circuit Diagram / Harness Diagram
Circuit Diagram / Harness Diagram
Circuit Diagram / Harness Diagram
Circuit Diagram / Harness Diagram
Circuit Diagram / Harness Diagram
2 MR-3021
11 09/05
09/05
13 09/05
09/05
15 09/05
3 MR-3022
17 09/05
09/05
19 09/05
09/05
21 09/05
Circuit Diagram / Harness Diagram