Konica 7075 GUIDE MANUAL 7075tc0e
CONTENTS
CONTENTS
SAFETY AND IMPORTANT WARNING ITEMS .......... C-1
IMPORTANT NOTICE .................................................. C-1
DESCRIPTION ITEMS FOR DANGER, WARNING
AND CAUTION............................................................. C-1
SAFETY WARNINGS...................................................C-2
SAFETY INFORMATION .............................................C-4
IMPORTANT INFORMATION ...................................... C-4
SAFETY CIRCUITS .....................................................C-5
INDICATION OF WARNING ON THE MACHINE.........C-7
1.OUTLINE
OUTLINE OF SYSTEM ........................................... 1-1
7075 PRODUCT SPECIFICATIONS.......................1-2
CENTER CROSS-SECTIONAL VIEW .................... 1-4
DRIVE SYSTEM DIAGRAM....................................1-5
[1] Main Drive Section......................................1-5
[2] Drum Drive Section.....................................1-6
[3] Developing Drive Section............................ 1-7
[4] Paper Feed Drive Section........................... 1-8
[5] Tray 1 and 2 Paper Feed Drive Section...... 1-9
[6] Tray 3 Paper Feed Drive Section.............. 1-10
[7] Vertical Conveyance Drive Section........... 1-11
[8] Bypass Paper Feed Drive Section ............ 1-12
[9] Conveyance/Transfer and Separation Wire
Cleaning Drive Section .............................1-13
[10] ADU Conveyance Drive Section ............... 1-14
[11] Paper Exit Drive Section ........................... 1-15
[12] Toner Supply Drive ...................................1-16
[13] Optics Drive Section ................................. 1-17
[14] Web Drive Section ....................................1-18
2. UNIT EXPLANATION
EXTERNAL SECTION ........................................ 2-A-1
[1] Composition ............................................ 2-A-1
DRIVE SECTION ................................................ 2-B-1
[1] Composition ............................................ 2-B-1
[2] Mechanisms............................................ 2-B-1
[3] M1 (Main) Control ................................... 2-B-2
[4] M2 (Drum) Control .................................. 2-B-2
READ SECTION ................................................. 2-C-1
[1] Composition ............................................ 2-C-1
[2] Mechanisms............................................ 2-C-1
[3] M13 (Scanner Drive) Control ..................2-C-2
[4] Exposure control ..................................... 2-C-4
[5] Original Read Control ............................. 2-C-5
[6] APS Control ............................................2-C-5
[7] AE Control............................................... 2-C-7
WRITE UNIT ....................................................... 2-D-1
[1] Composition ............................................ 2-D-1
[2] Mechanisms............................................ 2-D-1
[3] M17 (Polygon ) Control ........................... 2-D-2
[4] Image Write Control ................................ 2-D-4
DRUM UNIT ........................................................ 2-E-1
[1] Composition ............................................ 2-E-1
[2] Mechanisms............................................ 2-E-1
[3] Separation Claw Control ......................... 2-E-2
[4] Paper Guide Plate Control ...................... 2-E-2
[5] Drum Potential Control............................ 2-E-3
[6] HTR1 (drum heater) Control ................... 2-E-4
CORONA UNIT SECTION .................................. 2-F-1
[1] Composition ............................................ 2-F-1
[2] Mechanisms............................................ 2-F-1
[3] Charging Control..................................... 2-F-2
1 OUTLINE
OPERATING INSTRUCTIONS
2
3 DIS./ASSEMBLY
CONTENTS
1 OUTLINE
OPERATING INSTRUCTIONS
2
3 DIS./ASSEMBLY
[4] Transfer/Separation Control.................... 2-F-3
[5] M23 (Charger Cleaning ) Control........... 2-F-4
[6] M18 (Transfer/Separation Cleaning)
Control .................................................... 2-F-5
[7] PCL/TSL Control..................................... 2-F-6
DEVELOPING UNIT............................................ 2-G-1
[1] Composition ............................................ 2-G-1
[2] Mechanisms............................................ 2-G-1
[3] M3 (Developing Unit Drive) Control ........2-G-2
[4] Developing Bias Control .........................2-G-2
[5] Toner Density Control ............................. 2-G-3
[6] Dmax Control .......................................... 2-G-4
[7] Gradation Correction Control .................. 2-G-6
[8] Dot Diameter Correction Control.............2-G-7
[9] FM2 (Developing Suction) Control.......... 2-G-8
TONER SUPPLY UNIT ....................................... 2-H-1
[1] Composition ............................................ 2-H-1
[2] Mechanisms............................................ 2-H-1
[3] Toner Level Detection Control ................2-H-2
[4] M11 (Toner Supply 1) Control................. 2-H-4
CLEANING/TONER RECYCLE UNIT ...................2-I-1
[1] Composition ..............................................2-I-1
[2] Mechanisms.............................................. 2-I-1
[3] M14 (Blade) Control.................................. 2-I-2
TRAY 1/2 PAPER FEED UNIT............................. 2-J-1
[1] Composition ............................................. 2-J-1
[2] Mechanisms............................................. 2-J-1
[3] First Paper Feed Control.......................... 2-J-3
[4] Paper Up Drive Control............................ 2-J-5
[5] Paper Size Detection Control................... 2-J-7
[6] No paper detection control....................... 2-J-8
TRAY 3 PAPER FEED UNIT............................... 2-K-1
[1] Composition ............................................ 2-K-1
[2] Mechanisms............................................ 2-K-1
[3] First Paper Feed Control......................... 2-K-3
[4] Paper Up Drive Control........................... 2-K-4
[5] Paper Size Detection Control.................. 2-K-5
[6] No paper detection control...................... 2-K-5
BY-PASS TRAY ...................................................2-L-1
[1] Composition .............................................2-L-1
[2] Mechanisms............................................. 2-L-1
[3] First Paper Feed Control..........................2-L-2
[4] Paper Up/down Control............................2-L-3
[5] Paper Size Detection Control...................2-L-4
[6] No paper detection control....................... 2-L-5
VERTICAL PAPER CONVEYANCE SECTION ..2-M-1
[1] Composition ............................................2-M-1
[2] Mechanisms............................................ 2-M-1
[3] Vertical Paper Conveyance Control........ 2-M-2
ADU..................................................................... 2-N-1
[1] Composition ............................................ 2-N-1
[2] Mechanisms............................................ 2-N-2
[3] Loop/Second Paper Feed Control .......... 2-N-9
[4] Paper Conveyance Control................... 2-N-10
[5] Paper Reverse and Exit Control ........... 2-N-11
[6] ADU Paper Feed/Reversal Control....... 2-N-13
[7]
ADU Paper Conveyance/Feed Control..
FIXING UNIT ....................................................... 2-O-1
[1] Composition ............................................ 2-O-1
[2] Mechanisms............................................ 2-O-1
[3] M16 (Web Drive)..................................... 2-O-4
[4] Fixing Temperature Control ....................2-O-5
[5] SD3 (fixing guide) Control....................... 2-O-7
OTHER KINDS OF CONTROL ........................... 2-P-1
[1] Parts Energized when
the Main Switch is OFF........................... 2-P-1
[2] Parts that Operate when the Main Switch
is Turned ON........................................... 2-P-2
[3] Cooling Fan Control ................................ 2-P-3
[4] Operation Panel Control ......................... 2-P-6
[5] Counter Control....................................... 2-P-8
[6] Option Control......................................... 2-P-9
3. DISASSEMBLY/ASSEMBLY
EXTERNAL SECTION ........................................ 3-A-1
[1] Replacing Ozone Filters.......................... 3-A-1
[2] Removing and Reinstalling the External
Cover ...................................................... 3-A-1
[3] Removing and Reinstalling the Front
Right Door............................................... 3-A-2
[4] Removing and Reinstalling the Front
Left Door ................................................. 3-A-3
[5] Removing and Reinstalling the Operation
Panel....................................................... 3-A-3
DRIVE SECTION ................................................ 3-B-1
[1] Removing and Reinstalling the Drum
Motor....................................................... 3-B-1
[2] Removing and Reinstalling the Main
Motor....................................................... 3-B-2
READ SECTION ................................................. 3-C-1
[1] Screw that Must not be Removed/
Loosened ................................................3-C-1
[2] Removing and Reinstalling the CCD
Unit.......................................................... 3-C-1
[3] Replacing the Exposure Lamp................ 3-C-3
[4] Replacing and Reinstalling the Exposure
Unit.......................................................... 3-C-4
[5] Installing the Optics Wire ........................3-C-5
[6] Cleaning the Slit Glass and White Color
Reference Plate Glass ............................ 3-C-8
[7] Cleaning the Platen Glass ...................... 3-C-8
WRITE SECTION................................................ 3-D-1
[1] Removing and Reinstalling the Write
Unit.......................................................... 3-D-1
[2] Cleaning the Dust-proof Glass................ 3-D-2
[3] Removing and Reinstalling the Image
Control Board.......................................... 3-D-3
2-N-15
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