Konica 7045 GUIDE MANUAL 7045tc0e

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-6

1. OUTLINE

OUTLINE OF SYSTEM ...................................... 1-A-1

7045 PRODUCT SPECIFICATIONS .................. 1-A-2

CENTER CROSS-SECTIONAL VIEW ............... 1-A-4

DRIVE SYSTEM DIAGRAM ............................... 1-B-1

[1] Main Drive .......................................... 1-B-1

[2] Drum / Toner Recycle Drive ............... 1-B-2

[3] Developing Drive ................................ 1-B-3

[4] By-pass Paper Feed / 1st Paper

Feed Drive .......................................... 1-B-4

[5] ADU Drive ........................................... 1-B-5

[6] Reversal / Paper Exit Drive ................ 1-B-6

[7] Read Unit Drive .................................. 1-B-7

[8] Toner Supply Drive ............................. 1-B-8

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] M4 (Drum) Control .............................. 2-B-3

READ SECTION ................................................ 2-C-1

[1] Composition ........................................ 2-C-1

[2] Mechanisms ....................................... 2-C-1

[3] M2 (Scanner) 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] M5 (Polygon) 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 Claw Control ..................... 2-E-2

[5]

Transfer Entrance Guide Plate Control ...

CORONA UNIT SECTION ................................. 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) Control ..................... 2-G-2

[4] Developing Bias Control .....................2-G-3

[5] Toner Density Control ......................... 2-G-4

[6] Dmax Control ...................................... 2-G-6

[7] Gradation Correction Control .............. 2-G-7

1 OUTLINE

2 UNIT EXPLANATION

3 DIS./ASSEMBLY

2-E-3

CONTENTS

1 OUTLINE

2 UNIT EXPLANATION

3 DIS./ASSEMBLY

TONER SUPPLY UNIT ...................................... 2-H-1

[1] Composition ........................................ 2-H-1

[2] Mechanisms ....................................... 2-H-1

[3] Toner Level Detection Control ............ 2-H-3

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-2

[3] Paper Feed Control ............................. 2-J-3

[4] Paper Up-down Control ....................... 2-J-5

[5] Paper Size Detection Control .............. 2-J-6

[6] No Paper Detection Control ................. 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

REVERSAL AND PAPER EXIT SECTION .........2-L-1

[1] Composition ......................................... 2-L-1

[2] Mechanisms ........................................ 2-L-1

[3] Reversal Paper Exit Control ................ 2-L-3

ADU SECTION ................................................... 2-M-1

[1] Composition ........................................ 2-M-1

[2] Mechanisms ....................................... 2-M-1

[3] Conveyance Control ...........................2-M-3

OTHER KINDS OF CONTROL .......................... 2-N-1

[1] Parts Through Which Current Flows

When the Main Switch is

Turned OFF ........................................ 2-N-1

[2] Parts That Operate When the Power

Switch is Turned ON ........................... 2-N-2

[3] Fan Control ......................................... 2-N-4

[4] Operation Panel Control ..................... 2-N-5

[5] Counter Control .................................. 2-N-7

[6] Option Control .................................... 2-N-8

3. DISASSEMBLY/ASSEMBLY

EXTERNAL SECTION ....................................... 3-A-1

[1] Replacing the Ozone Filter ................. 3-A-1

[2] Removing and Reinstalling the

Rear Cover ......................................... 3-A-2

[3] Replacing the Fixing Filter .................. 3-A-2

[4] Removing and Reinstalling the

Side Cover (right) ............................... 3-A-2

DRIVE SECTION ............................................... 3-B-1

[1] Disassembly and Reassembly ........... 3-B-1

READ SECTION ................................................ 3-C-1

[1] Screws That Must Not Be Removed ... 3-C-1 [2] Removing and Reinstalling the

CCD Unit ............................................ 3-C-1

[3] Replacing the Exposure Lamp (L1) .... 3-C-3

[4] Removing and Reinstalling the

Exposure Unit ..................................... 3-C-4

[5] Removing the Optics Wire .................. 3-C-7

[6] Installing the Optics Wire .................. 3-C-10

WRITE UNIT ...................................................... 3-D-1

[1] Removing and Reinstalling the

Write Unit ............................................ 3-D-1

[2] Cleaning the Dust-proof Glass ........... 3-D-3

DRUM UNIT ....................................................... 3-E-1

[1] Removing and Reinstalling the

Drum Unit ........................................... 3-E-1

[2] Removing and Reinstalling

the Drum ............................................. 3-E-2

[3] Removing and Reinstalling the

Separation Claws ............................... 3-E-4

CORONA UNIT SECTION ................................. 3-F-1

[1] Removing and Reinstalling the

Charging Corona Unit and PCL .......... 3-F-1

[2] Removing and Reinstalling the

Transfer and Separation Corona Unit . 3-F-1

[3] Removing and Reinstalling the

Charging the Control Plate ................. 3-F-2

[4] Replacing the Charging Wire .............. 3-F-3

[5] Replacing the Transfer and

Separation Wires ................................ 3-F-3

[6] Replacing the Charging Wire

Cleaning Block (C) and (D) ................. 3-F-4

DEVELOPING UNIT ........................................... 3-G-1

[1] Screws That Must Not Be Removed ... 3-G-1 [2] Removing and Reinstalling the

Developing Unit .................................. 3-G-1

[3] Replacing the Developer .................... 3-G-2

TONER SUPPLY UNIT ...................................... 3-H-1

[1] Removing and Reinstalling the

Toner Cartridge .................................. 3-H-1

CLEANING/TONER RECYCLE UNIT ..................3-I-1

[1] Removing and Reinstalling the

Cleaning Blade ..................................... 3-I-1

PAPER FEED UNIT ............................................ 3-J-1

[1] Removing and Reinstalling the

By-pass Paper Feed Unit .................... 3-J-1

[2] Removing and Reinstalling the

Paper Feed Unit .................................. 3-J-1

[3] Replacing the By-pass Paper

Feed Rubber ........................................ 3-J-2

[4] Replacing the By-pass Separation

Rubber ................................................. 3-J-3

[5] Replacing the By-pass Double Feed

Prevention Rubber ............................... 3-J-3

[6] Replacing the Feed Rubber and

Paper Feed Rubber ............................. 3-J-4

[7] Removing and Reinstalling the

Double Feed Prevention Roller ........... 3-J-5

[8] Removing and Reinstalling the

2nd Paper Feed Unit ........................... 3-J-5

[9] Replacing the Registration Rollers

(upper/lower) ....................................... 3-J-6

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