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FrameMaker Ver.6E(PC) magicolor 7300 Contents
02.11.11

Contents
1. SAFETY PRECAUTIONS FOR INSPECTION AND
SERVICE ..................................................................................P-1
1-1. Warning .................................................................................... P-1
1-2. Caution ..................................................................................... P-3
1-3. Used Batteries Precautions ...................................................... P-5
1-4. Other Precautions ..................................................................... P-6
1-5. Precautions for Service ............................................................. P-6
1-6. Safety information ................................................................... P-10
(1) Laser Safety ..................................................................... P-10
(2) Internal Laser Radiation ................................................... P-10
1-7. Laser Safety Label .................................................................. P-13
1-8. Laser Caution Label ................................................................ P-13
1-9. Precautions for Handling the Laser Equipment ...................... P-13

GENERAL
1. SPECIFICATIONS ................................................................... G-1
2. PRECAUTIONS FOR INSTALLATION .................................... G-4
2-1. Installation Site .........................................................................G-4
2-2. Power Source ...........................................................................G-4
2-3. Grounding .................................................................................G-4
2-4. Space Requirements ................................................................G-5
3. PRECAUTIONS FOR USE ...................................................... G-6
3-1. To ensure that the printer is used in an optimum condition ......G-6
3-2. Operating Environment .............................................................G-6
3-3. Power Requirements ................................................................G-6
3-4. Other Precautions .....................................................................G-6
4. HANDLING CONSUMABLES .................................................. G-7
5. LIST OF NAMES ..................................................................... G-8

MECHANICAL/ELECTRICAL
1. CROSS-SECTION VIEW ......................................................... M-1
2. ElECTRICAL PARTS LAYOUT ............................................... M-2
2-1. Printer .......................................................................................M-2
2-2. Controller ..................................................................................M-4
3. OPERATING SEQUENCE ...................................................... M-5
4. IMAGE STABILIZATION CONTROL ....................................... M-6
4-1. Image Stabilization Control .......................................................M-6
4-2. Operation Timing ......................................................................M-7
4-3. Image stabilization control flow .................................................M-8
4-4. AIDC Sensor .............................................................................M-9

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FrameMaker Ver.6E(PC) magicolor 7300 Contents
02.11.11

5. PRINT HEAD (PH) ................................................................. M-10
5-1. System Configuration .............................................................M-10
5-2. Laser exposure process .........................................................M-11
5-3. Laser emission timing .............................................................M-12
5-4. Laser emission area ...............................................................M-13
(1) FD Direction .....................................................................M-13
(2) CD Direction .....................................................................M-13
5-5. Cooling of Print Head Unit ......................................................M-14
6. PRINT UNIT ........................................................................... M-15
6-1. System Configuration .............................................................M-15
6-2. Drive Print Unit ........................................................................M-16
(1) Drive Overall Unit .............................................................M-16
(2) Drive in Unit .....................................................................M-16
6-3. Print Unit Detection .................................................................M-17
(1) Set detection ....................................................................M-17
(2) New unit detection ...........................................................M-17
6-4. Toner Cartridge detection .......................................................M-17
(1) Set detection ....................................................................M-17
(2) New unit detection ...........................................................M-17
6-5. PC Drum .................................................................................M-18
6-6. PC Drum Charging .................................................................M-19
(1) Charged area Ozone Ventilation ......................................M-20
6-7. Developing Section .................................................................M-21
(1) Composition .....................................................................M-21
(2) Toner Conveyor ...............................................................M-22
(3) Developing System ..........................................................M-23
(4) Toner Level Detection ......................................................M-24
(5) Toner Cartridge Shutter Open/Close Mechanism ............M-25
6-8. Cleaner ...................................................................................M-26
7. IMAGE TRANSFER SECTION .............................................. M-27
7-1. Construction of Transfer Belt Unit ...........................................M-27
7-2. Transfer Belt Unit Drive ..........................................................M-28
7-3. New Transfer Belt Unit Detection ...........................................M-28
7-4. Transfer Belt Unit Set Detection .............................................M-29
7-5. Color Shift Detection ...............................................................M-30
(1) Simple correction .............................................................M-30
(2) Full correction ..................................................................M-30
7-6. Color Shift Correction .............................................................M-31
7-7. First Image Transfer Roller Pressure/
Retraction Mechanism ............................................................M-33
(1) Pressure/Retraction Mechanism ......................................M-33
(2) Pressure Position Switching Mechanism .........................M-34
7-8. 2nd Image Transfer Pressure/Retraction Mechanism ............M-35
7-9. 2nd Image Transfer ................................................................M-36
7-10. 2nd Image Transfer ................................................................M-36
7-11. Image Transfer ATVC Control ................................................M-37

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7-12. Temperature/Humidity Sensor ................................................M-38
7-13. Transfer Belt Cleaning Mechanism .........................................M-39
7-14. Cleaning the 2nd Image Transfer Roller .................................M-39
7-15. Waste Toner Box ....................................................................M-40
(1) Installing the Waste Toner Box ........................................M-40
(2) Waste Toner Near-Full/Full Detection ..............................M-40
8. FUSING SECTION ................................................................ M-41
8-1. Drive of Fuser Unit ..................................................................M-41
8-2. Fuser Unit Drive ......................................................................M-42
8-3. Control of Loop Before Fusing ................................................M-42
8-4. New Fuser Unit Detection .......................................................M-43
8-5. Pressure of Fusing Roller .......................................................M-43
8-6. Temperature Control ...............................................................M-44
(1) Fusing Temperature control flow .....................................M-44
(2) Control at Warm-up ..........................................................M-45
(3) Temperature Control During Standby ..............................M-45
(4) Temperature Control During Printing ...............................M-46
(5) Pre-heat Mode Control .....................................................M-46
(6) Sleep Mode ......................................................................M-46
(7) Heating heater switch control ...........................................M-47
9. PAPER TAKE-UP SECTION ................................................. M-48
9-1. 1st Drawer ..............................................................................M-48
(1) Tray set detection ............................................................M-48
(2) Paper Size Detection .......................................................M-49
(3) Paper Near-empty Detection ...........................................M-50
(4) Paper Empty Detection ....................................................M-50
(5) Paper Take-Up Mechanism .............................................M-51
9-2. 2nd Drawer .............................................................................M-52
(1) Tray set detection ............................................................M-52
(2) Paper Size Detection .......................................................M-53
(3) Paper Empty Detection ....................................................M-54
(4) Paper Empty Detection ....................................................M-54
(5) Paper Take-Up Mechanism .............................................M-55
(6) Vertical Transport Mechanism .........................................M-55
(7) Edge Guides and Trailing Edge Stop ...............................M-56
(8) Paper Lifting Plate ............................................................M-56
9-3. Manual Bypass Paper Take-Up Unit (Optional) ......................M-57
(1) Manual Feed Paper Take-Up Mechanism .......................M-57
(2) Manual feed operation .....................................................M-57
10. TRANSPORT SECTION ........................................................ M-58
10-1. Synchronizing Roller Drive .....................................................M-58
10-2. Image Transfer Failure Prevention During High Humidity ......M-58
10-3. Switch of system speed ..........................................................M-59
10-4. OHP Detecting ........................................................................M-59

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FrameMaker Ver.6E(PC) magicolor 7300 Contents
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11. DUPLEX UNIT (OPTIONAL) ................................................. M-60
11-1. Drive of Duplex Unit ................................................................M-60
11-2. Paper Feeding System ...........................................................M-61
(1) Operations in 2-sided printing with a single sheet of
paper resident in, and circulated through, the system .....M-61
(2) Operations for 2-sided printing with two sheets of
paper resident in the system, and with a new sheet of paper
taken up when a printed page with images printed on both
sides is fed out. ................................................................M-62

MAINTENANCE
1. MAINTENANCE SCHEDULE LIST ..........................................E-1
1-1. Guidelines for Life-time Expected Values by Unit ..................... E-3
(1) Guideline for Near-Life values ........................................... E-3
(2) Guidelines for life value ...................................................... E-3
2. DISASSEMBLY/REASSEMBLY AND CLEANING ...................E-5
(1) Cleaning the Paper Take-Up Roll ...................................... E-5
(2) Replacing the Paper Take-Up Roll .................................... E-5
(3) Cleaning the Paper Separator Roll .................................... E-6
(4) Replacing of the Separator Roll Assembly ........................ E-7
(5) Cleaning the Vertical Transport Roller/Roll ........................ E-7
(6) Replacing the Waste Toner Box ........................................ E-8
(7) Replacing the Ozone Filter ................................................ E-9
3. REPLACING THE UNITS .......................................................E-10
(1) Replacing the Print Unit ................................................... E-10
(2) Replacing the Toner Cartridge ......................................... E-16
(3) Replacing the Fuser Unit ................................................. E-19
(4) Replacing the Transfer Belt Unit ...................................... E-22

ASSEMBLY/DISASSEMBLY
1. SERVICE INSTRUCTIONS ..................................................... D-1
1-1. Identification of Fuses ............................................................... D-1
1-2. Parts Which Must Not Be Touched ........................................... D-2
(1) Screws that must not be removed ..................................... D-2
(2) Do not turn on the Variable Resistors on Board ................ D-2
2. ASSEMBLY/DISASSEMBLY ................................................... D-3
2-1. Doors, Covers and Exterior Parts ............................................. D-3
2-2. Removing Doors, Covers and Exterior Parts ............................ D-4
(1) Removing the Front Door ................................................... D-4
(2) Removing the Left Cover ................................................... D-5
(3) Removing the Panel Cover ................................................ D-5
(4) Removing the Top Cover ................................................... D-6
(5) Remove the Ozone Filter Cover ........................................ D-6
(6) Removing the Rear Cover ................................................. D-6
2-3. Removing Circuit Boards and other Electrical Components ..... D-7

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FrameMaker Ver.6E(PC) magicolor 7300 Contents
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(1) Removing the Control Board .............................................. D-8

(2) Removing the Controller Board ........................................ D-12
(3) Remove the 2nd Drawer Control Board ........................... D-13
(4) Removing the High Resistance Board ............................. D-14
(5) Removing the First Drawer Paper Size Detecting
Board ............................................................................... D-14
(6) Removing the Heater Lamp Control Board ...................... D-15
(7) Removing the DC Power Supply ..................................... D-16
(8) Removing the Control Panel ............................................ D-17
(9) Removing High Voltage Units 1 and 2 ............................. D-17

(1) Removing the Manual Feed Detecting Board .................. D-18

(1) Removing the Duplex Unit Control Board ........................ D-19

(1) Removing the Paper Feed Unit Control Board ................ D-20
2-4. Removing Units ...................................................................... D-22
(1) Removing the Print Head Unit ......................................... D-22
(2) Removing the 2nd Drawer ............................................... D-23
(3) Removing of the Manual Feed Unit (optional) ................. D-25
(4) Removing the Duplex Unit (optional) ............................... D-26
(5) Removing of the Paper Feed Unit (optional) .................... D-28
2-5. Cleaning and Disassembly of the Engine Parts ...................... D-31
(1) Composition of Transfer Belt Unit .................................... D-31
(2) Cleaning of the Fusing Entrance Guide Plate .................. D-31
(3) Cleaning the Print Head Unit window surface .................. D-32
(4) Cleaning the AIDC Sensor ............................................... D-32
(5) Removing the Paper Supply Drive Motor ......................... D-32
(6) Removing the Transport Drive Motor ............................... D-33
(7) Removing the Transport Roller Motor .............................. D-33
(8) Removing the Print Unit Drive Motor YMC/Bk ................. D-34
(9) Removing the 1st Image Transfer Pressure/Retraction
Clutch ............................................................................... D-34
(10) Remove the 2nd Drawer Paper Take-Up Clutch ............. D-35
(11) Remove the Paper Take-Up Motor for the 2nd Drawer ... D-36
(12) Removing the Registration Sensor .................................. D-37
(13) Removing the Temperature/Humidity Sensor .................. D-38
(14) Removing the Hard Disk Drive (optional) ......................... D-39
2-6. Disassembing the Manual Feed Unit (optional) ...................... D-40
(1) Removing the Manual Feed Motor ................................... D-40
(2) Removing the Paper Take-Up Drive Roller ...................... D-41
2-7. Disassembling the Duplex Unit (optional) ............................... D-43
(1) Removing the Duplex Unit Drive Motor ............................ D-43

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FrameMaker Ver.6E(PC) magicolor 7300 Contents
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(2) Removing the Wire Stopper ............................................. D-44

2-8. Disassembling the Paper Feed Unit (optional) ....................... D-48
(1) Removing the Paper Take-Up Clutch .............................. D-48
(2) Removing the Paper Take-Up Motor ............................... D-49

CONTROL PANEL/Panel Menu Operations
1. CONTROL PANEL ...................................................................S-1
1-1. Names and Functions of Control Panel Keys ........................... S-1
1-2. Control Panel Display ............................................................... S-3
(1) Basic Screen ...................................................................... S-3
(2) Warning Screen ................................................................. S-3
1-3. Control Panel Message ............................................................ S-4
(1) Standard State Message ................................................... S-4
(2) Caution Message ............................................................... S-4
(3) Start-up Messages ............................................................. S-5
(4) Operator Call Message ...................................................... S-6
(5) Service Call Message ........................................................ S-7
1-4. Canceling a Print Job ................................................................ S-8
2. PANEL MENU ..........................................................................S-9
2-1. Summary of Panel Menu .......................................................... S-9
2-2. Sub-menu ............................................................................... S-10
(1) PAPER ............................................................................. S-10
(2) QUALITY .......................................................................... S-11
(3) INTERFACE ..................................................................... S-12
(4) SYS DEFAULT ................................................................ S-13
(5) SERVICE ......................................................................... S-14
2-3. Contents of Panel Menu ......................................................... S-15
(1) PRINT .............................................................................. S-15
(2) PAPER ............................................................................. S-15
(3) QUALITY .......................................................................... S-16
(4) INTERFACE ..................................................................... S-16
(5) SYS DEFAULT ................................................................ S-17
(6) SERVICE ......................................................................... S-18
(7) PASSWORD PROTECTION ........................................... S-19
3. MAINTENANCE MODE ..........................................................S-20
3-1. SETTING THE MAINTENANCE MODE ................................. S-20
3-2. Summary of the Maintenance Mode ....................................... S-21
3-3. Maintenance Menu ................................................................. S-21
3-4. Contents of Maintenance Mode .............................................. S-22
(1) REGIST ROLLER ............................................................ S-22
(2) TRANSFER POWER ....................................................... S-22
(3) RESTORE PASSWORD .................................................. S-22
4. UPDATE FIRMWARE .............................................................S-23
4-1. Update using IEEE1284 Parallel Cable .................................. S-23

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FrameMaker Ver.6E(PC) magicolor 7300 Contents
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4-2. Network Cable (FTP) Update ................................................. S-25
4-3. When Update Fails ................................................................. S-26

TROUBLESHOOTING
1. INTRODUCTION ...................................................................... T-1
1-1. Checking the electrical components ......................................... T-1
(1) Sensor ................................................................................ T-1
(2) Switch ................................................................................ T-2
(3) Solenoid ............................................................................. T-2
(4) Clutch ................................................................................. T-3
(5) Motor .................................................................................. T-3
1-2. System Control Block Diagram ................................................. T-5
2. JAM ........................................................................................... T-6
2-1. Initial Check Items .................................................................... T-6
2-2. Misfeed Display ........................................................................ T-7
2-3. Misfeed Detecting Sensor Layout ............................................. T-8
2-4. Misfeed Detection Timing/Troubleshooting Procedures ........... T-9
(1) Misfeed in the 1st Drawer Paper Take-Up Section ............ T-9
(2) 2nd Drawer Paper Misfeed .............................................. T-10
(3) 3rd and 4th Drawers Paper Take-Up Section Misfeed
(Optional) ......................................................................... T-11
(4) Manual Bypass Take-Up Misfeed (Optional) ................... T-12
(5) Duplex Paper Take-up Section Misfeed (Optional) .......... T-13
(6) Duplex Transport Section Misfeed (Optional) .................. T-14
(7) Vertical Transport Misfeed ............................................... T-15
(8) 2nd Image Transfer Misfeed ............................................ T-17
(9) Fusing/Exit Misfeed .......................................................... T-18
3. MALFUNCTIONS ...................................................................T-19
3-1. Malfunction Codes .................................................................. T-19
3-2. Malfunction Detection Timing and Troubleshooting
Procedure ............................................................................... T-21
(1) C15, C23, C24: Boot Flash ROM Access Failure ............ T-21
(2) C26, C27: SMARTMEDIA Write/Read Failure ................. T-21
(3) C50: HDD Access Failure ................................................ T-22
(4) C28: LSI Calibration Failure ............................................. T-22
(5) C02, C03: RAM Access Failure ....................................... T-23
(6) C22: EEPROM Access Failure ........................................ T-23
(7) C13: MAC Address Error ................................................. T-24
(8) C51: HDD Data Capacity Full .......................................... T-24
(9) 13C8: New Transfer Belt Unit resetting failure ................. T-25
(10) 13CA: New Fuser Unit resetting failure ............................ T-25
(11) 13D0: EEPROM Failure (Main Unit) ................................ T-26
(12) 13D5: EEPROM Failure (PH Unit) ................................... T-26
(13) 13E2: Flash ROM Write Failure ....................................... T-27
(14) 13E3: Flash ROM Device Failure .................................... T-27
(15) 0010: PU Drive Motor C/M/Y Failure ............................... T-28

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FrameMaker Ver.6E(PC) magicolor 7300 Contents
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(16) 0017: PU Drive Motor Bk Failure ..................................... T-28
(17) 3046: Fusing Cooling Fan Motor Failure .......................... T-29
(18) 3047: PH Cooling Fan Motor Failure ............................... T-29
(19) 3048: PU Cooling Fan Motor Failure ............................... T-29
(20) 0040: Suction Fan Motor Failure ...................................... T-29
(21) 004C: Ozone Fan Motor Failure ...................................... T-29
(22) 004E: Power Supply Cooling Fan Motor Failure .............. T-29
(23) 0094: 2nd Image Transfer Roller Pressure/Retraction
failure ............................................................................... T-32
(24) 0096: Image Transfer Belt Pressure/Retraction failure .... T-32
(25) 0060: Fusing Drive Motor Failure ..................................... T-33
(26) 3020: Paper Take-Up Drive Motor Failure ....................... T-33
(27) 3021: Transport Drive Motor Failure ................................ T-33
(28) 3022: Duplex Unit Drive Motor Failure ............................. T-33
(29) 3023: Manual Bypass Unit Paper Take-Up Motor
Failure .............................................................................. T-33
(30) 0250: Power Supply (24 V) Failure .................................. T-35
(31) 0300: Polygon Motor Failure ............................................ T-36
(32) 0310: Laser Failure .......................................................... T-36
(33) 0500: Heating Roller Warm-Up Failure ............................ T-37
(34) 0501: Fusing Pressure Warm-Up Failure ........................ T-37
(35) 0510: Heating Roller abnormally low temperature ........... T-37
(36) 0511: Fusing Pressure Roller abnormally low
temperature ...................................................................... T-37
(37) 0520: Heating Roller abnormally high temperature ......... T-37
(38) 0521: Fusing Pressure Roller abnormally high
temperature ...................................................................... T-37
(39) FFFF: I/F Communication Failure .................................... T-38
4. POWER SUPPLY-RELATED MALFUNCTIONS ....................T-39
4-1. Printer is not energized at all .................................................. T-39
5. OTHER PRECAUTIONS ........................................................T-40
5-1. Emergency Stop Error ............................................................ T-40
(1) Door Open Error .............................................................. T-40
(2) Unit not mounted error ..................................................... T-40
5-2. Print Prohibition Error ............................................................. T-41
5-3. Warning Error ......................................................................... T-41
6. IMAGE PROBLEM ..................................................................T-42
6-1. Troubleshooting Procedure by a Particular Image Quality
Problem .................................................................................. T-42
(1) IR System: white lines in FD, white bands in FD, colored
lines in FD, and colored bands in FD ............................... T-42
(2) white lines in CD, white bands in CD, colored lines in CD,
and colored bands in CD ................................................. T-44
(3) Uneven FD Density .......................................................... T-45
(4) Uneven CD Density ......................................................... T-46
(5) Low Density (lowered ID) ................................................. T-47

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(6) Gradation Failure ............................................................. T-48
(7) Color Reproduction Failure .............................................. T-49
(8) Foggy Background ........................................................... T-50
(9) Void area, white spots ...................................................... T-51
(10) Faulty Image .................................................................... T-52
(11) Blank Copy, Black Copy .................................................. T-53
(12) Color Shift Failure ............................................................ T-54
(13) Colored Spots .................................................................. T-55
(14) Poor Fusing Performance, Offset .................................... T-56
(15) Brush Effect, Blurred Image ............................................. T-57
(16) Back Marking ................................................................... T-58
(17) Uneven Pitch .................................................................... T-59

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FrameMaker Ver.6E (PC) magicolor 7300 PL/PS Standard Document Ver.05
02.11.11

1. SAFETY PRECAUTIONS FOR INSPECTION AND
SERVICE