Sharp SF-1120 Manuals

Manuals and User Guides for Sharp SF-1120. We have 1 Sharp SF-1120 manual available for free PDF download: Service Manual

Sharp SF-1120 Service Manual

Sharp SF-1120 Service Manual (140 pages)

Sharp All in One Printer - Copier/Printer/Scanner User Manual

Brand: Sharp | Category: All in One Printer | Size: 4.7 MB

Table of Contents

Service Manual
1
Table of Contents
2
Product Outline
5
Product Features
5
System Configuration (Options)
5
Product Specifications
6
Basic Specifications
6
Description of each Section
7
Supply Parts
8
- Automatic Document Feeder (ADF)
  9
- Bin Sorter
  9
Optional Specifications
9
- Bin Staple Sorter (10-Bin SS)
  10
- Two-Step Paper Feed Unit
  10
- One-Step Paper Feed Unit
  10
- Exclusive-Use Desk
  10
- Product Views
  11
External View and Internal Structure
11
- Maintenance
  12
Operation Panel
12
Rollers, Mirrors, Etc
17
- Environment
  18
- Unpacking and Installation
  18
- Grounding Wire Connection
  19
- Installation Base
  19
- Power Source
  19
- Space Around the Machine
  19
Optical System Lock Release
20
- A. No. 2/3 Mirror Unit Lock Release
  20
- B. Lens and No. 4/5 Mirror Unit Lock Release
  20
Charger Cleaning
20
- A. Main Charger Unit Electrode Cleaning
  20
Developing Unit Setting
21
- A. Developing Unit Setting
  21
Toner Density Sensor Level Adjustment
22
- A. Developing Unit Level Adjustment
  22
Accessory Installation
22
- Toner Supply
  22
  - Center Shift Adjustment
    24
Label Attachment
24
- A. Label Attachment
  24
- SF-CM15) Installation
  25
Tray Paper Size Selection
28
- Basic Operations
  30
- Descriptions of each Section
  30
- General Descriptions
  30
- Paper Feed Section
  30
- Basic Composition
  31
- Developing Section
  31
- General Descriptions
  31
- Basic Operations
  32
- General Description
  32
- Optical Section
  32
- Basic Operations
  35
  - Copy Process
    37
  - Photoconductor
    37
  - Process Diagram
    38
  - Details of Image Forming Process
    39
  - Correction
    43
    
    Process Control Function
    43
    
    Basic Composition and Functions
    45
    
    Fusing Paper Exit Section
    45
    
    General
    45
    
    Transport/Fusing Section
    45
    
    High Voltage Section
    46
  - Potential
    43
General
46
- Basic Composition
  46
  - ADU Unit (SF-1120 Only)
    46
  - Disassembly and Assembly
    48
Paper Feed Unit
48
- Paper Feed Roller Ass'y Removal
  48
- PS Front Roller Ass'y
  49
- Separation Roller
  49
- Paper Feed Roller, Take-Up Roller
  49
- Lower Paper Feed Unit
  50
- Lower Separation Roller
  50
- Lower Paper Feed Roller/Take-Up Roller
  50
Transport Unit
50
- Resist Roller, Transfer Roller
  50
- Transport Belt
  51
Fusing Section
52
Optical System
54
- Copy Lamp Replacement
  54
  - Adjustment
    54
  - No. 2/3 Mirror Unit (Mirror Base B Installation (Mirror Base B Positioning)
    57
Replacement
58
- Lens Wire Replacement
  60
- Lens Unit Replacement
  62
- Main Charger (MC) Unit
  63
High Voltage Section
63
- Unit
  64
- Process Section
  64
- Process Unit
  64
- Drum (Replace Every 50K Copies)
  66
Developing Section
67
- C. V Ring Attachment
  68
- G. Developing Unit Color Identification
  69
- Operation Panel/Intermediate Cabinet
  69
- Frame Major Parts
  69
  - Cooling Fan Motor Replacement
    69
  - Power Unit
    70
  - Tray Size Detecting PWB
    70
  - Main PWB Unit
    71
  - AC Power PWB
    71
  - Ozone Filter (Check Every 50K Copies and Clean Every 100K Copies.)
    71
Multi Paper Feed Unit (SF-MF15: Option)
72
- Separation Roller
  72
- Take-Up Roller/Paper Feed Roller
  72
- Adjustment
  75
- Developing Section
  75
  - Position Adjustment
    75
- Optical System
  76
  - Adjustment Items
    76
  - Note for Adjustments
    77
  - Adjustment of each Section
    78
    
    A. Lens Reference Position Adjustment
    78
    
    Adjustment
    79
    
    Adjustment
    82
    
    Simulation Input Values
    83
    
    H. Horizontal Skew Adjustment
    84
    
    I. Center Shift Adjustment
    86
    
    J. Exposure Balance Adjustment
    86
    
    K. Copy Lead Edge Adjustment
    87
    
    A. Original Detecting Arm Unit Adjustment
    89
    
    Original Detecting Section
    89
    
    B. Original Detecting Level Adjustment
    90
    
    Simulation
    91
Outline
91
Purpose
91
Operating Procedure
91
List of Simulations
92
Details of Simulations
94
Functions Which Can be Set and Canceled by the User Simulation
110
User Simulation
110
- User Simulation Code Table
  111
- Self Diagnostics
  112
Summary/Purpose
112
Operation
112
Clearing the Self Diag Display
112
- General
  115
- Replacement
  115
Purpose
115
Remedies
115
- Copy Density Adjustment
  116
Set Value Recording Sheet
117
Memory Simulation List
118
Maintenance Cycle and Maintenance Items
119
Electrical Section
120
System Block Diagram
120
- Cpu (Ic6) Sc3041K12F
  123
- I/O (Ic8) Cxd1095Q
  127
- Detector Circuit of Sensor Signal
  130
- Start/Stop Control Circuit
  130
- Heater Lamp Control Circuit
  131
- Stepping Motor Drive Circuit
  132
- AE (Auto Exposure) Sensor Circuit
  133
- Toner Supply Motor Drive Circuit
  133
- Reset IC (IC13)
  133
- Operation Panel
  134
- Energystar Circuit Description
  135
- ADU Circuit Description
  136

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