TOSHIBA e-STUDIO 5520C, e-STUDIO 6520C, e-STUDIO 6530C, Service Manual
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Service Manual TOSHIBA e-STUDIO 5520C, e-STUDIO 6520C, e-STUDIO 6530C;
This manual is in the format and have detailed Diagrams, pictures and full procedures to diagnose and repair your TOSHIBA e-STUDIO 5520C, e-STUDIO 6520C, e-STUDIO 6530C copier.
You can print, zoom or read any diagram, picture or page from this Service Manual. Every chapter on this manual is fully detailed and contain all the simulation codes, trouble codes, maintenance procedures, reset procedures, diagnose procedures of TOSHIBA e-STUDIO 5520C, e-STUDIO 6520C, e-STUDIO 6530C photocopier. You can find easily everything what do you need.
To see what contain, please read table of contents:
1) FEATURE
1.1 Main Feature of e-STUDIO5520C/6520C/6530C
2) SPECIFICATIONS/ACCESSORIES/OPTIONS/SUPPLIES
2.1 Specifications
2.1.1 General
2.1.2 Copy
2.1.3 Print
2.1.4 Scan
2.1.5 e-Filing
2.1.6 Internet Fax
2.1.7 Network Fax
2.2 Accessories
2.3 Options
2.4 Supplies
2.5 System List
3) OUTLINE OF THE MACHINE
3.1 Sectional View
3.1.1 Front side
3.1.2 Rear side
3.2 Electric Parts Layout
3.3 Symbols and Functions of Various Components
3.3.1 Motors
3.3.2 Fans
3.3.3 Sensors
3.3.4 Switches
3.3.5 Electromagnetic spring clutches
3.3.6 Solenoids
3.3.7 PC boards
3.3.8 Lamps, coils, and heaters
3.3.9 Thermistors, thermopiles, and thermostats
3.3.10 Transformer
3.3.11 Others
3.4 System Block Diagram
3.5 Disassembly and Replacement of Covers
3.5.1 Front lower cover
3.5.2 Front cover
3.5.3 Top right cover
3.5.4 Right top cover
3.5.5 Top front cover
3.5.6 Top left cover
3.5.7 FAX cover
3.5.8 Receiving tray
3.5.9 Left middle cover
3.5.10 Left top cover
3.5.11 Left lower cover
3.5.12 Bypass tray unit (Removing tray arm)
3.5.13 Duplexing unit front cover
3.5.14 Duplexing unit rear cover
3.5.15 Paper feed cover
3.5.16 RADF connector cover
3.5.17 Right rear cover
3.5.18 Rear cover
3.5.19 Upper exhaust fan cover
3.5.20 Top rear cover
3.5.21 Left corner cover
3.5.22 Right corner cover
4) COPY PROCESS
4.1 General Description
4.1.1 Expression of Colors
4.1.2 4-Step Copy Process
4.2 Description of Operation
4.3 Functions
4.4 Comparison with e-STUDIO2500C/3500C/3510C
5) GENERAL OPERATION
5.1 Overview of Operation
5.2 Description of Operation
5.2.1 Warming-up
5.2.2 Ready (ready for copying)
5.2.3 Drawer feed copying (1st drawer paper feeding)
5.2.4 Bypass feed copying
5.2.5 Interruption copying
5.3 Detection of Abnormality
5.3.1 Types of abnormality
5.3.2 Description of abnormality
5.4 Flow Chart
5.4.1 Power ON to ready
5.4.2 Automatic feed copying
6) CONTROL PANEL
6.1 General Description
6.2 Items Shown on the Display Panel
6.2.1 Display
6.2.2 Message
6.3 Relation between the Equipment State and Operator's Operation
6.4 Description of Operation
6.4.1 Dot matrix LCD circuit
6.4.2 LED display circuit
6.5 Disassembly and Replacement
6.5.1 Control panel unit
6.5.2 Control panel rear cover
6.5.3 Display PC board (DSP)
6.5.4 Panel inverter board (P-INV)
6.5.5 Shielding plate
6.5.6 Key PC board-1 (KEY1)
6.5.7 Key PC board-2 (KEY2)
6.5.8 Touch panel (TCP)
6.5.9 Control panel cover
7) SCANNER
7.1 General Description
7.2 Construction
7.3 Functions
7.4 Description of Operation
7.4.1 Scanning operation
7.4.2 Initialization at power-ON
7.5 Electric Circuit Description
7.5.1 Scan motor control circuit
7.5.2 Exposure Lamp Control Circuit
7.5.3 General Description of CCD Control
7.5.4 Automatic Original Size Detection Circuit
7.6 Disassembly and Replacement
7.6.1 Original glass
7.6.2 Lens cover
7.6.3 SLG board cooling fan (F1)
7.6.4 Automatic original detection sensor (S1-5)
7.6.5 Exposure lamp (EXP)
7.6.6 Exposure lamp cooling fan-1 (F2)
7.6.7 Scanner unit cooling fan-1 (F3)
7.6.8 Exposure lamp cooling fan-2 (F26)
7.6.9 Upper exhaust fan (left) (F29)
7.6.10 Upper exhaust fan (right) (F30)
7.6.11 Lens unit
7.6.12 Scan motor (M1)
7.6.13 Carriage-1
7.6.14 Inverter board (INV)
7.6.15 Carriage wire / carriage-2
7.6.16 Carriage home position sensor (S6)
7.6.17 Platen sensor (S7)
7.6.18 SLG board (SLG)
7.7 Adjustment of the Scanner Section
7.7.1 Adjustment carriages-1 and -2 positions
7.7.2 Belt tension adjustment of the Scan motor
8) IMAGE PROCESSING
8.1 General Description
8.2 Configuration
8.3 Image Processing PC Board (IMG)
8.3.1 Features
8.3.2 Functions of image processing circuit
8.4 System Control PC Board (SYS)
8.4.1 Features
8.4.2 Functions of image processing circuit
8.5 Image Related Adjustment
8.5.1 Adjustment Order
8.5.2 Adjustment of the Auto-Toner Sensor
8.5.3 Performing Image Quality Control (IQC)
8.5.4 Adjustment of Color Registration Control
8.5.5 Image Dimensional Adjustment (General description)
8.5.6 Paper alignment at the registration roller
8.5.7 Printer-related image dimensional adjustment
8.5.8 Scanner-related image dimensional adjustment
8.6 Image Quality Adjustment (Copying Function)
8.6.1 Automatic gamma adjustment
8.6.2 Density adjustment
8.6.3 Color balance adjustment
8.6.4 Gamma balance adjustment
8.6.5 Background adjustment
8.6.6 Judgment threshold for ACS (common for copy & network scan)
8.6.7 Sharpness adjustment
8.6.8 Setting range correction
8.6.9 Adjustment of smudged/faint text
8.6.10 Color Adjustment of Marker
8.6.11 Beam level conversion setting
8.6.12 Maximum toner density adjustment to paper type
8.6.13 Maximum text density adjustment
8.6.14 Text/Photo reproduction level adjustment
8.6.15 Black reproduction switching at the Twin color copy mode
8.6.16 Black header density level adjustment
8.6.17 Black area adjustment in twin color copy mode
8.6.18 Judgment threshold adjustment for blank original
8.6.19 Background offsetting adjustment for ADF
8.7 Image Quality Adjustment (Printing Function)
8.7.1 Automatic gamma adjustment
8.7.2 Gamma balance adjustment (Black Mode)
8.7.3 Color balance adjustment
8.7.4 Adjustment of faint text
8.7.5 Upper limit value at Toner Saving Mode
8.7.6 Maximum toner density adjustment (OHP)
8.7.7 Fine line enhancement switchover
8.7.8 "PureBlack/PureGray" threshold adjustment (PS)
8.7.9 "PureBlack/PureGray" threshold adjustment (PCL)
8.7.10 "PureBlack/PureGray" threshold adjustment (XPS)
8.7.11 "PureBlack/PureGray" threshold adjustment (Twin color print)
8.7.12 Toner limit threshold adjustment
8.7.13 Screen switchover
8.7.14 Sharpness adjustment
8.7.15 Adjustment of smudged text (1200 dpi)
8.7.16 Thin line width lower limit adjustment
8.7.17 Color/black judgment setting for twin color printing images
8.7.18 Background adjustment
8.8 Image Quality Adjustment (Scanning Function)
8.8.1 Gamma balance adjustment
8.8.2 Density adjustment
8.8.3 Background adjustment (Color Mode)
8.8.4 Judgment threshold for ACS (common for copy & network scan)
8.8.5 Sharpness adjustment
8.8.6 Setting range correction
8.8.7 Fine adjustment of black density
8.8.8 RGB conversion method selection
8.8.9 Adjustment of saturation
8.8.10 Background processing offset adjustment
8.9 Image Quality Adjustment (FAX Function)
8.9.1 Density adjustment
8.9.2 Beam level conversion setting
9) LASER OPTICAL UNIT
9.1 General Description
9.2 Structure
9.3 Electric Circuit Description
9.3.1 Laser diode control circuit
9.3.2 Polygonal motor control circuit
9.3.3 Mirror motor control circuit
9.4 Disassembly and Replacement
9.4.1 Laser optical unit
9.4.2 Laser optical unit cooling fan (front) (F22)
9.4.3 Laser optical unit cooling fan (rear) (F23)
9.4.4 Shutter
9.4.5 Shutter motor
9.4.6 Shutter sensor (home position)
9.4.7 Shutter sensor (end position)
9.4.8 Disassembly and replacement of the polygonal motor
10) PAPER FEEDING SYSTEM
10.1 General Descriptions
10.2 Composition
10.3 Functions
10.4 Description of Operation
10.4.1 Drive of rollers
10.4.2 Operation of bypass pickup roller
10.4.3 Operation of drawer pickup roller
10.4.4 Paper size detection
10.4.5 Separation of paper
10.4.6 General operation
10.5 Electric Circuit Description
10.5.1 Registration motor control circuit
10.5.2 Transport motor-1 control circuit
10.5.3 Transport motor-2 control circuit
10.5.4 Feed motor control circuit
10.5.5 Feed/Transport motor control circuit
10.5.6 Tray-up motor-1 control circuit
10.5.7 Tray-up motor-2 control circuit
10.5.8 Tandem LCF tray-up motor control circuit
10.5.9 Tandem LCF end fence motor control circuit
10.6 Disassembly and Replacement
10.6.1 Bypass feed tray
10.6.2 Bypass feed unit
10.6.3 Bypass pickup solenoid (SOL8)
10.6.4 Bypass paper sensor (S71)
10.6.5 Bypass pickup roller
10.6.6 Bypass upper unit
10.6.7 Bypass feed roller
10.6.8 Bypass transport roller
10.6.9 Bypass motor(M12)
10.6.10 1st drawer idling roller
10.6.11 Bypass separation roller
10.6.12 Bypass feed sensor (S72)
10.6.13 Bypass paper size detection sensor (S70)
10.6.14 Drawer feeding unit
10.6.15 Feed roller
10.6.16 Pickup roller
10.6.17 Separation roller
10.6.18 Transport roller
10.6.19 Drawer detection sensor (S73/S81/S89/S97)
10.6.20 Drawer feed sensor (S78/S86/S94/S102)
10.6.21 Drawer transport sensor (S77/S85/S93/S101)
10.6.22 Drawer empty sensor (S75/S83/S91/S99)
10.6.23 Drawer tray-up sensor (S76/S84/S92/S100)
10.6.24 Drawer bottom sensor (S74/S82/S90/S98)
10.6.25 Registration roller (Rubber)
10.6.26 Paper dust cleaning brush (registration roller)
10.6.27 Registration guide
10.6.28 Registration sensor (S52)
10.6.29 Registration roller (Metal)
10.6.30 2nd transfer side paper clinging detection sensor (S51)
10.6.31 Media sensor (S69)
10.6.32 Feed cover sensor (S114)
10.6.33 Drawer
10.6.34 Drawer paper size detection sensor-1/2 (S79/S80/S87/S88/S95/S96/S103/S104)
10.6.35 Registration motor (M39)
10.6.36 Feed/transport drive unit
10.6.37 Transport motor-1 (M40)
10.6.38 Transport motor-2 (M41)
10.6.39 Feed motor (M42)
10.6.40 Feed/transport motor (M43)
10.6.41 Paper feed drive unit
10.6.42 3rd drawer transport clutch (CLT4)/3rd drawer feed clutch (CLT5)
10.6.43 4th drawer transport clutch (CLT6)/4th drawer feed clutch(CLT7)
10.6.44 Tray-up motor-1 (M44)
10.6.45 Tray-up motor-2 (M45)
10.6.46 Transfer belt paper clinging detection sensor (S47)
10.6.47 Tandem LCF tray-up motor (M46)
10.6.48 Tandem LCF end fence motor (M47)
10.6.49 Tandem LCF standby unit
10.6.50 Tandem LCF feeding unit
10.6.51 Stopper opening/closing solenoid (front) (SOL10)/Stopper opening/closing detection sensor (front) (S110)
10.6.52 Stopper opening/closing solenoid (rear)/Stopper opening/closing detection sensor (rear) (S111)
10.6.53 Tandem LCF bottom sensor (S107)
10.6.54 Standby side tray paper amount detection sensor (S106)
10.6.55 End fence home position sensor (S112)
10.6.56 End fence stop position sensor (S113)
10.6.57 Standby side empty sensor (S109)
10.6.58 Standby side tray detection sensor (S108)
10.6.59 Tandem LCF solenoid (SOL9)
10.7 Adjustment of the Paper Feeding System
10.7.1 Adjustment of the media sensor position
10.7.2 Separation roller pressure force adjustment
10.7.3 Sheet sideways deviation caused by paper transporting adjustment
10.7.4 Adjusting the clearance of the paper and side guides
11 PROCESS UNIT RELATED SECTION
11.1 General description
11.2 Composition
11.3 Functions
11.4 Electric Circuit Description
11.4.1 High-voltage transformer control circuit
11.4.2 Drum Surface Potential Sensor Control Circuit
11.4.3 Drum Temperature Detection Circuit
11.4.4 Drum motor control circuit
11.4.5 Temperature/humidity detection circuit
11.4.6 Toner motor control circuit
11.4.7 Waste toner transport motor control circuit
11.4.8 Auto-toner Circuit
11.4.9 Developer unit motor control circuit
11.4.10 Developer unit mixer motor control circuit
11.5 Disassembly and Replacement
11.5.1 Pulling out the process unit (EPU tray)
11.5.2 Drum cleaner unit
11.5.3 Drum
11.5.4 Drum cleaning blade
11.5.5 Blade side seal
11.5.6 Main charger unit
11.5.7 Main charger grid
11.5.8 Needle electrode cleaner
11.5.9 Needle electrode
11.5.10 Discharge LED (ERS-K/ERS-C/ERS-M/ERS-Y)
11.5.11 Sub-hopper
11.5.12 Sub-hopper toner sensor (S38/S39/S40/S41)
11.5.13 EPU cover
11.5.14 Sub-hopper toner motor (K/C/M/Y) (M19/M20/M21/M22)
11.5.15 EPU PC board
11.5.16 Drum surface potential sensors control PC board (V0S board)
11.5.17 Auger lock detection sensor (S42)
11.5.18 Main charger ozone exhaust fan-K/-C/-M/-Y (F17/F1/F19/F20)
11.5.19 Needle electrode cleaner detection sensor-K/C/M/Y (S30/S31/S32/S33)
11.5.20 Needle electrode cleaner motor-K/-C/-M/-Y (M23/M24/M25/M26)
11.5.21 V0 sensor shutter solenoid (K/C/M/Y) (SOL4/SOL5/SOL6/SOL7)
11.5.22 Drum surface potential sensor (K/C/M/Y) (S34/S35/S36/S37)
11.5.23 Drum thermistor (K/Y) (THM1/THM2)
11.5.24 Developer unit
11.5.25 Developer material
11.5.26 Developer sleeve
11.5.27 Doctor blade
11.5.28 Auto-toner sensor-K/C/M/Y (S26/S27/S28/S29)
11.5.29 Drum drive unit
11.5.30 Drum motor-K (M27)
11.5.31 Drum motor-YMC (M28)
11.5.32 K drum phase sensor (S44)
11.5.33 Color drum phase sensor (S43)
11.5.34 Developer unit motor-K/YMC (M29)/(M31)
11.5.35 Developer unit mixer motor-K/YMC (M30)/(M32)
11.5.36 Developer drive unit
11.5.37 Waste toner box
11.5.38 Waste toner amount detection sensor (S13)
11.5.39 Waste toner box full detection sensor (S14)
11.5.40 Waste toner box detection sensor (S16)
11.5.41 Ozone filter-1
11.5.42 Ozone filter-2
11.5.43 Toner filter
11.5.44 Toner motor (K/C/M/Y) (M15,/M16/M17/M18)
11.5.45 Toner cartridge paddle rotation detection sensor-K/C/M/Y (S8/S9/S10/S11) 11-64
11.5.46 Waste toner transport motor (M33)
11.5.47 Waste toner transport unit
11.5.48 Ozone suctioning fan (F24)
11.5.49 Toner cartridge heat insulation fan (F21)
11.5.50 Toner cooling exhaust fan (F31)
11.5.51 Temperature/humidity sensor (S12)
11.5.52 Toner motor interlock switch (SW3)
11.5.53 EPU cooling fan (F14)
11.5.54 Scattered toner suctioning fan (F25)
11.6 Adjustment of the Process Unit Related Section
11.6.1 High-Voltage Transformer Setting
11.6.2 Adjustment of the Auto-Toner Sensor
11.6.3 Adjustment of the doctor-sleeve gap
12 TRANSFER UNIT
12.1 General Descriptions
12.2 Composition
12.3 Functions
12.4 General description of operation
12.4.1 Self steering mechanism
12.4.2 Printing in the color modes
12.4.3 Printing in the black mode
12.4.4 Color registration control
12.5 Electric Circuit Description
12.5.1 Transfer belt motor control circuit
12.5.2 Transfer belt cam motor control circuit
12.6 Disassembly and Replacement
12.6.1 Pulling out the transfer belt unit
12.6.2 2nd transfer facing roller cleaning pad
12.6.3 Transfer belt cleaning unit
12.6.4 Transfer belt cleaning blade
12.6.5 Transfer belt cleaner side seal
12.6.6 Transfer belt unit (TBU)
12.6.7 Transfer belt
12.6.8 Transfer belt motor (M13)
12.6.9 Transfer belt cam motor (M14)
12.6.10 Transfer belt contact/release detection sensor (S46)
12.6.11 1st transfer roller (Y/M/C/K)
12.6.12 Drive roller / Drive roller cleaning mylar
12.6.13 Tension roller
12.6.14 2nd transfer facing roller
12.6.15 2nd transfer unit (TRU)
12.6.16 2nd transfer roller
12.6.17 2nd transfer roller lubricant unit
12.6.18 2nd transfer roller cleaning blade
12.6.19 2nd transfer roller side seal
12.6.20 TRU waste toner box
12.6.21 TRU waste toner amount detection sensor (S17)
12.6.22 TRU waste toner auger drive section
12.6.23 TRU waste toner transport motor (M11)
12.6.24 TRU waste toner motor (M10)
12.6.25 2nd transfer drive unit
12.6.26 2nd transfer motor (M9)
12.6.27 2nd transfer roller contact/release clutch (CLT2)
12.6.28 2nd transfer roller drive clutch (CLT3)
12.6.29 2nd transfer roller contact/release detection sensor (S50)
12.7 Adjustment of the transfer belt
12.7.1 Adjustment of the degree of the transfer belt unit parallelization
13) IMAGE QUALITY CONTROL
13.1 General Description
13.2 Composition
13.3 Principle of the Sensor
13.4 Image Quality Control Flow Chart
13.5 Disassembly and Replacement
13.5.1 Image quality control unit
13.5.2 Image position aligning sensor (front) (S20)
13.5.3 Image position aligning sensor (center) (S21)
13.5.4 Image position aligning sensor (rear) (S22)
13.5.5 Image quality sensor (S23)
13.5.6 Image quality shutter solenoid (SOL3)
13.6 Performing Image Quality Control
14) FUSER UNIT
14.1 General Description
14.2 Composition
14.3 Functions
14.3.1 Fuser belt section
14.3.2 Pressure roller section
14.3.3 IH coil section
14.3.4 Fuser drive section
14.4 Description of Operation
14.5 Electric Circuit Description
14.5.1 Fuser unit control circuit
14.5.2 IH coil
14.5.3 Fuser motor control circuit
14.6 Disassembly and Replacement
14.6.1 Fuser unit
14.6.2 Pressure roller cover
14.6.3 Transport guide-1
14.6.4 Transport guide-2
14.6.5 Entrance guide cover
14.6.6 Separation finger
14.6.7 Separation plate
14.6.8 Pressure roller / Pressure roller heater lamp (LAMP)
14.6.9 Fuser belt / Fuser roller / Fuser belt guide / Satellite roller
14.6.10 Fuser belt rotation detection sensor (S49)
14.6.11 Fuser belt center thermostat (THMO4) /Fuser belt side thermostat (THMO5)
14.6.12 Fuser belt edge thermistor (THM6)
14.6.13 Pressure roller center thermistor (THM3) /Pressure roller side thermistor (THM4) /Pressure roller edge thermistor (THM5)
14.6.14 Pressure roller contact/release detection sensor (S48)
14.6.15 Pressure roller center thermostat (THMO2) /Pressure roller side thermostat (THMO3)
14.6.16 IH coil
14.6.17 Fuser belt center thermopile (THMP1) /Fuser belt side thermopile (THMP2)
14.6.18 Fuser motor (M6)
14.6.19 Pressure roller contact/release clutch (CLT1)
14.6.20 Exit paper cooling fan (rear) (F15)
14.6.21 IH cooling fan-1 (F8) / IH cooling fan-2 (F9)
14.6.22 IH board (IH)
14.6.23 Fuser unit jam releasing LED (LED)
14.7 Gap Adjustment for Fuser Unit
14.7.1 Gap adjustment for fuser belt thermostats
14.7.2 Gap adjustment for pressure roller thermistors
14.7.3 Gap adjustment for pressure roller thermostats
14.7.4 Gap adjustment for separation plate
15) EXIT / REVERSE / DUPLEX SECTION
15.1 General Description
15.2 Composition
15.3 Functions
15.3.1 Paper exit unit
15.3.2 Bridge unit
15.3.3 Duplexing bridge unit
15.3.4 Duplexing unit
15.4 Description of Operations
15.4.1 Paper transport paths
15.4.2 Circulation during duplex printing
15.5 Flow Chart for duplex printing
15.6 Disassembly and Replacement
15.6.1 Upper exit section cooling fan-1(F32) /Upper exit section cooling fan-2 (F33)
15.6.2 Lower exit section cooling fan-1(F34) /Lower exit section cooling fan-2 (F35)
15.6.3 Lower exit section cooling fan-3(F36)
15.6.4 Exit motor (M2)
15.6.5 Upper paper exit sensor (S61) /Upper exit tray paper full detection sensor (S62)
15.6.6 Lower paper exit sensor (S63)
15.6.7 Reverse section stationary jam detection sensor (S60)
15.6.8 Reverse path cover switch (SW5)
15.6.9 Upper paper exit roller
15.6.10 Lower paper exit roller
15.6.11 Bridge unit
15.6.12 Bridge unit front cover
15.6.13 Bridge unit lower cover
15.6.14 Bridge unit transport entrance motor (M4) / Reverse motor (M3)
15.6.15 Bridge unit transport exit motor (M5)
15.6.16 Bridge unit upper cover
15.6.17 Bridge unit transport roller-1
15.6.18 Bridge unit transport roller-2
15.6.19 Bridge unit transport roller-3
15.6.20 Reverse roller
15.6.21 Bridge unit exit roller-1
15.6.22 Bridge unit exit roller-2
15.6.23 Transport path switching solenoid-1 (SOL1)
15.6.24 Transport path switching solenoid-2 (SOL2)
15.6.25 Bridge unit path entrance sensor (S55)
15.6.26 Bridge unit path exit sensor (S56)
15.6.27 Reverse sensor (S59)
15.6.28 Reverse section stationary jam detection sensor (S58)
15.6.29 Exit paper cooling fan (front) (F5)
15.6.30 Bridge unit cooling fan (front) (F6)
15.6.31 Bridge unit cooling fan (rear) (F7)
15.6.32 Front cover opening/closing detection switch (SW9) /Bridge unit connecting detection switch (SW8)
15.6.33 Duplexing bridge unit
15.6.34 Duplexing unit opening/closing detection sensor (S64)
15.6.35 Reverse path sensor (S57)
15.6.36 Duplexing bridge unit transport roller
15.6.37 Duplexing unit upper cover
15.6.38 Duplexing unit front side cover
15.6.39 Duplexing unit rear side cover
15.6.40 Reversed paper cooling fan (F11)
15.6.41 ADU motor-1 (M7)
15.6.42 ADU motor-2 (M8)
15.6.43 ADU board
15.6.44 ADU transport roller-1
15.6.45 ADU transport roller-2
15.6.46 ADU transport roller-3
15.6.47 Duplexing unit path exit sensor (S67)
15.6.48 Fuser transport sensor (S65)
15.6.49 Duplexing unit path entrance sensor (S66)
15.6.50 Duplexing unit cover opening/closing detection sensor (SW7)
15.6.51 Duplexing unit interlock switch (SW4)
16) REVERSING AUTOMATIC DOCUMENT FEEDER (RADF)
16.1 General Description
16.2 Functions
16.3 Description of Operation
16.3.1 Paper path
16.3.2 Drive
16.3.3 Original size detection
16.4 Electric Circuit Description
16.4.1 Signal block diagram
16.4.2 Electric circuit description
16.5 Disassembly and Replacement
16.5.1 RADF
16.5.2 RADF front cover
16.5.3 RADF rear cover
16.5.4 Original jam access cover
16.5.5 RADF left cover
16.5.6 Original tray
16.5.7 Original reverse tray
16.5.8 Platen sheet unit
16.5.9 RADF exit tray
16.5.10 Reading start guide unit
16.5.11 Exit guide / Exit/reverse guide / Reading end guide
16.5.12 Paper feeder unit
16.5.13 Pickup roller
16.5.14 Feed roller
16.5.15 Separation roller
16.5.16 Original registration roller
16.5.17 Intermediate transport roller
16.5.18 Reading start roller
16.5.19 Reading end roller
16.5.20 Exit roller
16.5.21 Exit/reverse roller
16.5.22 Exit intermediate roller
16.5.23 Reverse roller
16.5.24 Original feed motor (MR1)
16.5.25 Original feed motor bracket
16.5.26 Read motor (MR2)
16.5.27 Read motor bracket
16.5.28 Original reverse motor (MR3)
16.5.29 Original exit motor (MR4)
16.5.30 RADF cooling fan (FR1)
16.5.31 Original pickup solenoid (SOLR1)
16.5.32 Original reverse solenoid (SOLR2)
16.5.33 Original exit solenoid (SOLR3)
16.5.34 Original jam access cover opening/closing switch (SWR1)
16.5.35 RADF opening/closing switch (SWR2)
16.5.36 RADF opening/closing sensor (SR15)
16.5.37 Original empty sensor (SR3)
16.5.38 Original jam access cover opening/closing sensor (SR13)
16.5.39 Feeder lower guide unit
16.5.40 Original width detection sensor-3 (SR8)
16.5.41 Original width detection sensor-2 (SR7)
16.5.42 Original width detection sensor-1 (SR6)
16.5.43 Original registration sensor (SR5)
16.5.44 Original exit sensor (SR12)
16.5.45 Original tray sensor (SR1)
16.5.46 Original tray width sensor (SR2)
16.5.47 Original exit/reverse sensor (SR11)
16.5.48 Original reverse unit opening/closing sensor (SR14)
16.5.49 Original reading end sensor (SR4)
16.5.50 Original intermediate transport sensor (SR9)
16.5.51 Original reading start sensor (SR10)
16.5.52 Original reading start sensor (prism)
16.5.53 RADF board (RADF)
16.5.54 RADF board bracket
16.5.55 Harness guide
16.6 Adjustment of the Reversing Automatic Document Feeder (RADF)
16.6.1 RADF position adjustment
16.6.2 RADF height adjustment
16.6.3 RADF image skew adjustment
16.6.4 RADF leading edge position adjustment
16.6.5 RADF horizontal position adjustment
16.6.6 RADF copy ratio adjustment
16.6.7 RADF opening/closing switch adjustment
16.6.8 Original reading start sensor adjustment
16.6.9 Platen Sheet
17) POWER SUPPLY UNIT
17.1 Construction
17.2 Operation of DC Output Circuits
17.3 Output Channel
17.4 Fuse
17.5 Configuration of Power Supply Unit
17.6 Sequence of Power Supply
17.7 AC Wire Harness
18) PREVENTIVE MAINTENANCE (PM)
18.1 General Description
18.2 PM Display
18.2.1 General Description
18.2.2 PM Display Conditions
18.2.3 PM Display Contents
18.2.4 Counter Clearing
18.3 General Descriptions for PM Procedure
18.4 PM Support Mode
18.4.1 General Description
18.4.2 Operational flow
18.4.3 Operational screen
18.4.4 Access tree
18.5 General Description
18.6 Preventive Maintenance Checklist
18.6.1 Scanner
18.6.2 Feed unit
18.6.3 Duplexing unit
18.6.4 Bypass feed unit
18.6.5 Main charger
18.6.6 Drum / Cleaner unit / Filter
18.6.7 Developer unit (K, Y, M, and C)
18.6.8 Waste toner box
18.6.9 Transfer belt unit / Transfer belt cleaning unit
18.6.10 Image quality control unit
18.6.11 2nd transfer roller unit
18.6.12 Fuser unit
18.6.13 Bridge unit
18.6.14 Paper exit unit
18.6.15 RADF
18.6.16 LCF (MP-2501)
18.7 Storage of Supplies and Replacement Parts
18.8 PM KIT
18.9 Maintenance Part List
18.10 Grease List
18.11 Operational Items in Overhauling
19) FIRMWARE UPDATING
19.1 Firmware Updating with USB Media
19.1.1 Master data/System ROM/PFC ROM/Engine ROM/Scanner ROM
19.1.2 Imaging Acceleration Board ROM (GE-1170)
19.2 Firmware Updating with PWA-DWNLD-350-JIG2
19.2.1 Writing the data to the jig (PWA-DWNLD-350-JIG2)
19.2.2 System ROM
19.2.3 Engine ROM
19.2.4 PFC ROM
19.3 Firmware Updating with K-PWA-DLM-320
19.3.1 Scanner ROM
19.3.2 RADF firmware
19.3.3 Finisher firmware (MJ-1103/1104)
19.3.4 Saddle stitcher firmware (MJ-1104)
19.3.5 Hole punch unit firmware (MJ-6102)
19.3.6 Converter Firmware (MJ-1103/1104)
19.3.7 Fax unit firmware (GD-1270)
19.4 Confirmation of the updated data
19.5 When Firmware Updating Fails
19.5.1 Procedure
19.5.2 Flow chart for correcting USB update failure
20) REPLACEMENT OF PC BOARDS/HDD
20.1 Removal and Installation of PC Boards/HDD
20.1.1 SYS board cover
20.1.2 SYS board (SYS)
20.1.3 SYS board case
20.1.4 SYS board cooling fan (F27)
20.1.5 IMG board (IMG)
20.1.6 LGC board (LGC)
20.1.7 LGC board case
20.1.8 PFC board (PFC)
20.1.9 PFC board case
20.1.10 Hard disk (HDD)
20.1.11 HDD cooling fan (F28)
20.1.12 SRAM board (RAM-L)
20.1.13 SRAM board (RAM-S)
20.1.14 Switching regulator (PS)
20.1.15 High-voltage transformer-1 (HVT1)
20.1.16 High-voltage transformer-2 (HVT2)
20.1.17 FIL board
20.2 Precautions, Procedures and Settings for Replacing PC Boards and HDD
20.2.1 Precautions when replacing PC boards
20.2.2 HDD fault diagnosis
20.2.3 Precautions and procedures when replacing the HDD
20.2.4 Precautions and Procedures when replacing the SYS board
20.2.5 Procedures and settings when replacing the SLG board
20.2.6 Precautions and Procedures when replacing SRAM board (for SYS board)
20.2.7 Precautions and Procedures when replacing SRAM board (for LGC board) 20-33
20.2.8 Firmware confirmation after the PC board/HDD replacement
20.2.9 Electronic key re-registration using the one-time dongle
20.3 Precautions for Installation of GP-1070 and Disposal of HDD/Board
20.3.1 Precautions for Installation of GP-1070 and Disposal of HDD/Board
20.3.2 Precautions when disposing of the SYS board
20.3.3 Precautions when disposing of the SRAM board
21) BACKUP FUNCTION
21.1 Data Cloning
21.1.1 General description
21.1.2 Precautions
21.1.3 Backup files
21.1.4 List of codes available for cloning
21.1.5 Cloning procedure
21.2 AES Data Encryption Function Setting
21.2.1 General description
21.2.2 Precautions
21.2.3 Setting procedure
21.2.4 Procedure for disabling data encryption function
21.2.5 Procedure for discarding HDD when data encryption function is enabled
21.3 Assist Mode
21.3.1 Assist Mode
21.3.2 Operating Procedure of Assist Mode
23) ADJUSTMENT MODE (05)
23.1 Classification List of Adjustment Mode (05)
23.2 Operating Procedure
23.3 Test print pattern in Adjustment Mode (05)
23.4 Process
23.5 Image Processing
23.6 System
23.7 Scanner
23.8 Printer
24) SETTING MODE (08)
24.1 Classification List of Setting Mode (08)
24.2 Operating Procedure
24.3 Process
24.4 Scanner
24.5 Printer
24.6 Counter
24.7 Image Processing
24.8 System
24.9 Pixel counter
24.9.1 Outline
24.9.2 Pixel counter related code
24.10 PM support mode related code
24.11 Default setting / restore setting of the EFI Printer Board
25) ERROR CODE and TROUBLESHOOTING
25.1 General Descriptions
25.1.1 If a problem continues even after performing all troubleshooting
25.2 Error Code List
25.2.1 Jam
25.2.2 Service call
25.2.3 Error in Internet FAX / Scanning Function
25.2.4 Printer function error
25.2.5 TopAccess related error
25.3 Diagnosis and Prescription for Each Error Code
25.3.1 Paper transport jam (paper exit section)
25.3.2 Paper misfeeding
25.3.3 Paper transport jam
25.3.4 Other paper jam
25.3.5 Cover open jam
25.3.6 RADF jam
25.3.7 Jam in bridge unit
25.3.8 Paper jam in finisher section
25.3.9 Paper jam in saddle stitcher section
25.3.10 Paper jam in puncher unit
25.3.11 Other paper jam
25.3.12 Paper feeding system related service call
25.3.13 Scanning system related service call
25.3.14 Fuser unit related service call
25.3.15 Communication related service call
25.3.16 RADF related service call
25.3.17 Circuit related service call
25.3.18 Laser optical unit related service call
25.3.19 Finisher related service call
25.3.20 Image control related service call
25.3.21 Copy process related service call
25.3.22 Other service call
25.3.23 Error in Internet FAX / Scanning Function
25.3.24 Printer function error
25.3.25 TopAccess related error
25.4 Other errors
25.4.1 Drum surface potential sensor control related troubleshooting
25.4.2 Troubleshooting at unpacking
25.4.3 Drum surface potential sensor control related troubleshooting when setting up the equipment at unpacking
25.4.4 Equipment operation disabled after the installation of option(s)
25.4.5 Wireless LAN connection disabled
25.4.6 "Start page" printing disabled after the installation of the EFI Printer Board (GA-1310, optional)
25.4.7 When the duplexing unit cover open display cannot be released
25.4.8 Operation of the control panel locked at the power-ON and the locking cannot be canceled
25.4.9 Troubleshooting for one-time dongle
25.4.10 Abnormality Related to Imaging Acceleration Board (GE-1170, optional)
25.4.11 Countermeasure for stain on paper back side
25.4.12 Measures against exit paper side deviation
25.4.13 Troubleshooting for abnormal sound from fuser unit
25.5 Troubleshooting for the Image
25.5.1 Color deviation
25.5.2 Uneven pitch and jitter image
25.5.3 Black spot / color point
25.5.4 Poor image density, color reproduction and gray balance
25.5.5 Background fogging
25.5.6 Moire/lack of sharpness
25.5.7 Toner offset
25.5.8 Blurred image
25.5.9 Poor fusing
25.5.10 Blank print
25.5.11 Solid print
25.5.12 White banding or white void (in feeding direction)
25.5.13 White banding (at right angles to feeding direction)
25.5.14 Skew (slantwise copying)
25.5.15 Color banding (in feeding direction)
25.5.16 Color banding (at right angles to feeding direction)
25.5.17 White spots
25.5.18 Poor transfer
25.5.19 Uneven image density
25.5.20 Faded image (low density)
25.5.21 Image dislocation in feeding direction
25.5.22 Image jittering
25.5.23 Poor cleaning
25.5.24 Uneven light distribution
25.5.25 Blotched image
25.5.26 Stain on the paper back side
25.5.27 White void in the halftone
25.5.28 Paper wrinkle
25.5.29 Residual image
25.5.30 Feathered image
25.5.31 Low density image (rear side)
25.5.32 Black banding in feeding direction
26) REMOTE SERVICE
26.1 Auto Supply Order
26.1.1 Outline
26.1.2 Setting Item
26.1.3 Setting procedure
26.1.4 Order Sheet Format
26.2 Service Notification
26.2.1 Outline
26.2.2 Setting
26.2.3 Items to be notified
27) SETTING / ADJUSTMENT OF OPTIONS
27.1 Removal and Installation of Options
27.1.1 MP-2501L/A (Large Capacity Feeder (LCF))
27.1.2 MJ-1103/1104 (Finisher)
27.1.3 MJ-6102 (Hole punch unit)
27.2 Adjustment of the Finisher (MJ-1103/1104)
27.2.1 Adjusting the Alignment Position
27.2.2 Adjusting the Stapling Position
27.2.3 Stapling/folding position adjustment in saddle unit
27.2.4 Adjusting paper exit speed
27.3 Harness Connection for Damp Heaters
28) EXTERNAL COUNTERS
28.1 Outline
28.2 Signal
28.3 Notices
29) PC BOARDS
30) DC WIRE HARNESS / ELECTRIC PARTS LAYOUT
30.1 DC Wire Harness
30.2 Electric Parts Layout
