Table Of Contents - Konica Minolta 7020 Service Manual

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CONTENTS
SAFETY AND IMPORTANT WARNING ITEMS
IMPORTANT NOTICE ................................................. vii
DESCRIPTION ITEMS FOR DANGER, WARNING
AND CAUTION ............................................................ vii
SAFETY WARNINGS .................................................. vii
SAFETY INFORMATION
IMPORTANT INFORMATION .................................... xvi
SAFETY CIRCUITS ................................................... xvii
INDICATION OF WARNING ON THE MACHINE ..... xix
7020 SERIES LIST OF DIFFERENCE ................... xxi
LIST OF OPTIONS THAT CAN BE USED WITH THE
7020 SERIES ......................................................... xxii
7020 SERIES PRODUCT CONFIGURATORS .... xxiii
1. OUTLINE
OUTLINE OF SYSTEM .......................................... 1-1
7020 SERIES PRODUCT SPECIFICATIONS ....... 1-2
CENTER CROSS SECTION ................................. 1-5
DRIVE SYSTEM DIAGRAM .................................. 1-6
[1] Main Drive .............................................. 1-6
[2] Developing Drive .................................... 1-7
[3] Paper feed Drive .................................... 1-8
[4] ADU Drive ............................................ 1-10
[5] Reading Drive ....................................... 1-11
[6] Toner supply Drive ............................... 1-12
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 Motor) Control .................... 2-B-2
READ SECTION ................................................ 2-C-1
[1] Composition ....................................... 2-C-1
[2] Mechanisms ....................................... 2-C-1
[3] M2 (Optical Motor) Control ................ 2-C-2
[4] Exposure Control ............................... 2-C-5
[5] Original Reading Control .................... 2-C-6
[6] APS Control ........................................ 2-C-7
[7] AE Control .......................................... 2-C-9
WRITE UNIT ...................................................... 2-D-1
[1] Composition ....................................... 2-D-1
[2] Mechanisms ....................................... 2-D-1
[3] M5 (Polygon Motor) Control ............... 2-D-2
[4] Image Write Control ........................... 2-D-3
DRUM UNIT ....................................................... 2-E-1
[1] Composition ....................................... 2-E-1
[2] Mechanisms ....................................... 2-E-1
[3] PCL/TSL Control ................................ 2-E-2
[4] Separation Claws Control .................. 2-E-2
[5] Paper Entrance Guide Plate Control . 2-E-3
.......... vii
........................................... xvi
CORONA UNIT .................................................. 2-F-1
[1] Composition ....................................... 2-F-1
[2] Mechanisms ....................................... 2-F-1
[3] Charging Control ................................ 2-F-2
[4] Transfer/Separation Control ............... 2-F-3
DEVELOPING UNIT .......................................... 2-G-1
[1] Composition ....................................... 2-G-1
[2] Mechanisms ....................................... 2-G-1
[3] M3 (Developing Motor) Control .......... 2-G-2
[4] Developing Bias Control ..................... 2-G-2
[5] Toner Density Control ........................ 2-G-3
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] Toner Bottle Detection Control .......... 2-H-2
CLEANING/TONER RECYCLE UNIT ................. 2-I-1
[1] Composition ........................................ 2-I-1
[2] Mechanisms ........................................ 2-I-1
PAPER FEED UNIT ............................................ 2-J-1
[1] Composition ........................................ 2-J-1
[2] Mechanisms ........................................ 2-J-1
[3] Paper Feed Control ............................. 2-J-2
[4] Paper Up Down Control ...................... 2-J-3
[5] Paper Size Detection Control .............. 2-J-4
[6] No Paper Detection Control ................ 2-J-6
[7] Control of Paper Level Detection ........ 2-J-6
[8] Intermediate Conveyance Control
(7030/7130/7035/7135 Only) .............. 2-J-7
FIXING UNIT ...................................................... 2-K-1
[1] Composition ....................................... 2-K-1
[2] Mechanisms ....................................... 2-K-1
[3] Fixing Temperature Control ............... 2-K-2
[4] SD4 (Cleaning Web SD) Control ....... 2-K-4
ADU/PAPER EXIT SECTION ............................ 2-L-1
[1] Composition ....................................... 2-L-1
[2] Mechanisms ....................................... 2-L-2
[3] Paper Exit/ADU Conveyance
Switching Control ............................... 2-L-2
[4] ADU Conveyance Control .................. 2-L-3
OTHER CONTROLS ......................................... 2-M-1
[1] Parts Energized When the Main Power
Switch is OFF .................................... 2-M-1
[2] Components Operated by Power
Switches SW1 and SW2 ................... 2-M-1
[3] Fan Control ........................................ 2-M-2
[4] Operation Unit Control ...................... 2-M-4
[5] Counter Control ................................. 2-M-5
[6] Option Control ................................... 2-M-6
3. DISASSEMBLY / ASSEMBLY
EXTERNAL SECTION ....................................... 3-A-1
[1] Replacing the Ozone Filter ................ 3-A-1
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