Brother DCP-7057E Manuals

Manuals and User Guides for Brother DCP-7057E. We have 2 Brother DCP-7057E manuals available for free PDF download: Service Manual

Brother DCP-7057E Service Manual (337 pages)

Laser MFC

Brand: Brother | Category: All in One Printer | Size: 15.39 MB

Table of Contents

3
- Service Manual
  1
- Chapter 3 Disassembly/Reassembly
  
  5
- Chapter 5 Service Functions
  
  7
  - Regulation
    9
    
    Disconnect Device
    10
    
    Radio Interference
    11
    
    Internal Laser Radiation
    15
  - Safety Information
    16
    
    Additional Information
    16
  - Safety Precautions
    18
- Chapter 1 Specifications
  
  21
Chapter 1 Specifications

22
- Specifications List
  23
  - General
    23
  - Computer Requirements
    26
  - Network Connectivity
    28
  - Service Information
    29
  - Consumables
    30
  - Paper
    31
    
    Paper Handling
    31
    
    Media Specifications
    31
  - Unprintable Area
    32
  - Telephone
    32
  - FAX (Only for the Models with FAX Function)
    32
  - Copy
    33
  - Scanner
    33
  - Unscannable Area
    34
  - USB Direct Interface
    34
- Chapter 2 Error Indication and Troubleshooting
  
  35
Chapter 2 Error Indication and Troubleshooting

36
- Introduction
  38
  - Precautions
    38
  - Initial Check
    39
- Overview
  41
  - Cross-Section Drawing
    41
  - Paper Feeding
    43
  - Operation of each Part
    45
  - Block Diagram
    46
  - Components
    47
  - Life of Toner Cartridge and Drum Unit
    48
- Error Codes
  52
  - Error Messages
    57
  - Communications Error Code
    59
  - Error Cause and Remedy
    62
    
    Error Code
    75
    
    Error Code 71/72/73/74
    81
    
    Error Code A8/A9/Ad
    95
    
    Error Code E7 to E9/EA/EB
    105
    
    Error Code EC
    105
    
    Error Code ED
    105
    
    Error Code Ee/Ef
    106
  - Paper Feeding Problems
    108
    
    Pickup Function of Paper Tray Does Not Work
    108
    
    No Feeding
    108
    
    No Paper Fed Manual Feed Slot (Error Code 9A)
    109
    
    Double Feeding
    109
    
    Paper Jam
    110
    
    Dirt on Paper
    112
    
    Paper Feeding at an Angle
    112
    
    Wrinkles or Creases
    113
    
    Curl in the Paper
    114
    
    Prints Only Single Side of the Paper When Duplex-Printing
    115
    
    Cannot Make Print through Duplex-Printing
    115
    
    Paper Size Error
    115
    
    Paper Size Error through Duplex-Printing
    115
  - Image Defect Troubleshooting
    116
    
    Image Defect Examples
    116
    
    Troubleshooting Image Defect
    117
    
    Faulty Registration
    119
    
    Poor Fixing
    120
    
    Image Distortion
    121
    
    All Black
    121
    
    Vertical Streaks
    122
    
    Faint Print
    124
    
    White Spots
    125
    
    Black Spots
    125
    
    Horizontal Lines
    126
    
    Black Band
    126
  - Software Setting Problems
    128
    
    Cannot Print Data
    128
  - Network Problems
    129
    
    Cannot Make a Print through Network Connection
    129
    
    (Wireless LAN Model Only) (Error Code DE, EE)
    129
  - Document Feeding Problems
    130
    
    No Feeding
    130
    
    Double Feeding
    130
    
    Paper Jam
    131
    
    Wrinkles
    132
  - Scanning Image Defect Troubleshooting
    133
    
    Image Defect Examples
    133
    
    Troubleshooting Image Defect
    133
  - Troubleshooting of the Control Panel
    136
    
    Nothing Is Displayed on the LCD
    136
    
    The Control Panel Does Not Work
    136
    
    Lamp Malfunction
    136
  - Troubleshooting of Fax/Telephone Functions
    137
    
    FAX Can't Send It
    137
    
    FAX Cannot be Transmitted and Received
    137
    
    No Bell Ring
    137
    
    A Communication Error Occurs
    138
    
    Reception Mode Cannot be Changed
    138
    
    Caller ID Are Not Displayed
    138
    
    Cannot Talk on the Handset
    138
  - PCB Problems
    139
    
    Main PCB Failure
    139
    
    Out of Memory
    139
    
    High Voltage Power Supply PCB ASSY Failure
    139
    
    Low Voltage Power Supply PCB ASSY Failure
    140
    
    NCU ASSY Failure
    140
  - Other Problems
    141
    
    The Machine Is Not Turned ON, or the LCD Indication Does Not Appear
    141
    
    The Fan Motor 60 ASSY Does Not Rotate
    141
    
    The Room Temperature Is High or Low
    141
    
    Problem Associated with Secure Function Lock
    141
Chapter 3 Disassembly/Reassembly

143
- Safety Precautions
  145
- Packing
  146
- Screw Catalogue
  147
- Screw Torque List
  148
- Lubrication
  150
  - Overview of Gears
    151
- Harness Routing
  154
  - Adf Motor
    168
- Disassembly Flow Chart
  170
- Disassembly Procedure
  171
  - Paper Tray
    173
  - Cord Hook
    176
  - Back Cover
    177
  - Outer Chute ASSY
    178
  - Fuser Cover
    179
  - Inner Chute ASSY, Eject Pinch Roller R ASSY and Eject Pinch Roller L ASSY
    180
  - Front Cover ASSY, Support Flap 1
    182
  - Side Cover L / Handset Holder ASSY
    184
  - Side Cover R
    187
  - ADF Unit (for Models with ADF)
    188
    
    ADF Unit
    188
    
    Hinge ASSY L / Hinge Arm R / Hinge R / Hinge R Support
    190
    
    Document Stopper
    191
    
    Document Sub Tray
    192
    
    ADF Cover ASSY
    193
    
    Gear Cover
    194
    
    Separation Roller ASSY
    195
    
    Separation Rubber Holder ASSY
    196
    
    Upper Document Chute ASSY SX
    197
    
    Document Feed Roller ASSY
    198
    
    Lower Document Chute ASSY
    199
    
    Ejection Roller ASSY
    200
    
    ADF Motor
    201
    
    Document Scanning Position Detection Sensor
    203
    
    Document Detection/Adf Cover Open Sensor
    203
  - Document Cover ASSY (for Models Without ADF)
    205
  - Pull Arm L / Pull Arm R / Pull Arm Spring
    207
  - Document Scanner Unit
    210
  - Panel Unit
    211
    
    Panel PCB ASSY
    212
    
    Rubber Key L/R
    213
    
    Lcd
    214
  - Pull Arm Guide
    215
  - Ncu Assy
    216
  - Speaker Unit
    220
  - Joint Cover
    222
  - Fuser Unit
    224
  - Low Voltage Power Supply PCB ASSY
    227
  - Fan Motor 60 ASSY
    230
  - High Voltage Power Supply PCB ASSY
    231
  - New Toner Sensor PCB ASSY
    232
  - Filter
    233
  - Laser Unit
    234
  - Wireless LAN PCB ASSY (Wireless Network Model Only)
    236
  - Pick-Up Roller Holder ASSY
    237
  - Rubber Foot
    238
  - Main PCB ASSY
    239
  - T1 Clutch ASSY, REG Clutch ASSY
    240
  - Main Frame L ASSY
    242
  - Develop Drive Sub ASSY, Develop Gear Joint/52
    244
  - Motor Drive Sub ASSY, Main Motor
    246
  - Internal Temperature Sensor
    248
  - Paper Eject Sensor PCB ASSY
    249
- Fuser Gear 28/34
  251
Chapter 4 Adjustments and Updating of Settings, Required after Parts Replacement

253
- Chapter 7 Periodical Maintenance
  
  254
Chapter 5 Service Functions

265

Brother DCP-7057E Service Manual (343 pages)

Laser MFC

Brand: Brother | Category: All in One Printer | Size: 15.85 MB

Table of Contents
3
Regulation
9
Safety Information
16
Chapter 1 Specifications
21
Specifications List
23
General
23
Network Connectivity
28
Service Information
29
Consumables
30
Paper
31
Paper Handling
31
Media Specifications
31
Unprintable Area
32
Telephone
32
Fax
32
Copy
33
Scanner
33
Unscannable Area
34
USB Direct Interface
34
Chapter 2 Error Indication and Troubleshooting
35
Introduction
38
Precautions
38
Initial Check
39
Overview
41
Cross-Section Drawing
41
Paper Feeding
43
Operation of each Part
45
Block Diagram
46
Components
47
Life of Toner Cartridge and Drum Unit
48
Error Codes
52
Error Messages
57
Communications Error Code
59
Error Cause and Remedy
62
Paper Feeding Problems
108
Pickup Function of Paper Tray Does Not Work
108
No Feeding
108
No Paper Fed Manual Feed Slot (Error Code 9A)
109
Double Feeding
109
Paper Jam
110
Dirt on Paper
112
Paper Feeding at an Angle
112
Wrinkles or Creases
113
Curl in the Paper
114
Prints Only Single Side of the Paper When Duplex-Printing
115
Cannot Make Print through Duplex-Printing
115
Paper Size Error
115
Paper Size Error through Duplex-Printing
115
Image Defect Troubleshooting
116
Image Defect Examples
116
Troubleshooting Image Defect
117
Cannot Print Data
128
Network Problems
129
Cannot Make a Print through Network Connection
129
(Wireless LAN Model Only) (Error Code DE, EE)
129
Document Feeding Problems
130
No Feeding
130
Double Feeding
130
Paper Jam
131
Wrinkles
132
Scanning Image Defect Troubleshooting
133
Image Defect Examples
133
Troubleshooting Image Defect
133
Troubleshooting of the Control Panel
136
Nothing Is Displayed on the LCD
136
Lamp Malfunction
136
Troubleshooting of Fax/Telephone Functions
137
FAX Can't Send It
137
FAX Cannot be Transmitted and Received
137
No Bell Ring
137
A Communication Error Occurs
138
Reception Mode Cannot be Changed
138
Caller ID Are Not Displayed
138
Cannot Talk on the Handset
138
PCB Problems
139
Main PCB Failure
139
Out of Memory
139
High Voltage Power Supply PCB ASSY Failure
139
Low Voltage Power Supply PCB ASSY Failure
140
NCU ASSY Failure
140
Other Problems
141
The Machine Is Not Turned ON, or the LCD Indication Does Not Appear
141
Fuser Fan Does Not Rotate
141
The Room Temperature Is High or Low
141
Problem Associated with Secure Function Lock
141
Paper Tray
173
Cord Hook
176
Back Cover
177
Outer Chute ASSY
178
Fuser Cover
179
Inner Chute ASSY, Eject Pinch Roller R ASSY and Eject Pinch Roller L ASSY
180
Front Cover ASSY, Support Flap 1
182
Side Cover L / Handset Holder ASSY
184
Side Cover R
187
ADF Unit (for Models with ADF)
188
ADF Unit
188
Hinge ASSY L / Hinge Arm R / Hinge R / Hinge R Support
190
Document Stopper
191
Document Sub Tray
192
ADF Cover ASSY
193
Gear Cover
194
Separation Roller ASSY
195
Separation Rubber Holder ASSY
196
Document Feed Roller ASSY
198
Lower Document Chute ASSY
199
Ejection Roller ASSY
200
ADF Motor
201
Document Scanning Position Detection Sensor PCB ASSY
203
Document Detection/Adf Cover Open Sensor PCB ASSY
203
Document Cover ASSY (for Models Without ADF)
205
Pull Arm L / Pull Arm R / Pull Arm Spring
207
Document Scanner Unit
210
Panel Unit
211
Panel PCB ASSY
212
Rubber Key L/R
213
Lcd
214
CIS Unit
215
Pull Arm Guide
217
Ncu Assy
218
Speaker Unit
222
Joint Cover
224
Fuser Unit
226
Low Voltage Power Supply PCB ASSY
229
Fuser Fan
232
High Voltage Power Supply PCB ASSY
233
New Toner Sensor PCB ASSY
234
Filter
235
Laser Unit
236
Wireless LAN PCB ASSY (Wireless LAN Model Only)
238
Pick-Up Roller Holder ASSY
239
Rubber Foot
240
Main PCB ASSY
241
T1 Clutch ASSY, REG Clutch ASSY
242
Main Frame L ASSY
244
Develop Drive Sub ASSY, Develop Gear Joint/52
246
Motor Drive Sub ASSY, Main Motor
248
Internal Temperature Sensor
250
Paper Eject Sensor PCB ASSY
251
If You Replace the Main Pcb Assy
256
Rewriting the Firmware (Sub Firmware, Main Firmware)
257
Checking Firmware Version
257
Rewriting the Firmware Using Computer
257
Initialization of EEPROM of Main PCB ASSY (Maintenance Mode: Code 01)
258
Setting by Country (Maintenance Mode: Code 74)
258
Setting the Serial Number
258
Inputting the Adjusted Value of the Laser Unit
260
Acquisition of White Level Data (Maintenance Mode: Code 55)
264
Operation Check of Sensors (Maintenance Mode: Code 32)
264
If You Replace the Laser Unit
265
Inputting the Adjusted Value of the Laser Unit
265
If You Replace the Low Voltage Power Supply Pcb Assy
269
Reset of Irregular Power Supply Detection Counter
269
If You Replace the Document Scanner Unit / the Cis Unit
270
Acquisition of White Level Data (Maintenance Mode: Code 55)
270
Scanning and Printing Check
270
Placement of Scanner Unit in Position for Transportation (Maintenance Mode: Code 06)
270
If You Replace the Panel Unit
270
Operation Check of LCD (Maintenance Mode: Code 12)
270
Operation Check of Control Panel Button (Maintenance Mode: Code 13)
270
If You Replace the Lcd Unit
271
Operation Check of LCD (Maintenance Mode: Code 12)
271
Maintenance Mode
275
How to Enter the Maintenance Mode
275
How to Enter the End User-Accessible Maintenance Mode
275
List of Maintenance-Mode Functions
276
Detailed Description of Maintenance-Mode Functions
277
EEPROM Parameter Initialization (Function Code 01, 91)
277
Printout of Scanning Compensation Data (Function Code 05)
278
Placement of Scanner Unit in Position for Transportation (Function Code 06)
280
ADF Performance Test (Function Code 08)
280
Monochrome Image Quality Test Pattern (Function Code 09)
281
Worker Switch (WSW) Setting and Printout (Function Code 10, 11)
282
Operational Check of LCD (Function Code 12)
286
Operational Check of Control Panel Button (Function Code 13)
287
Software Version Check (Function Code 25)
288
Operational Check of Sensors (Function Code 32)
289
LAN Connection Status Display (Function Code 33)
291
PC Print Function (Function Code 43)
292
Not-Disclosed-To-Users Functions (Function Code 45)
295
EEPROM Customizing (User-Accessible) (Function Code 52)
296
Received Data Transfer Function (Function Code 53) (FAX Model Only)
297
Fine Adjustment of Scan Start/End Positions (Function Code 54)
299
Acquisition of White Level Data (Function Code 55)
300
Continuous Print Test (Function Code 67)
301
Setting by Country (Function Code 74)
302
Printout of Maintenance Information (Function Code 77)
305
Operational Check of Fan (Function Code 78)
306
Display of the Machine History (Log) (Function Code 80)
307
Error Code Indication (Function Code 82)
311
Sending Communication Error List (Function Code 87) (FAX Model Only)
311
Counter Reset after Replacing the Fuser Unit and Paper Feeding Kit (Function Code 88)
312
Exit from the Maintenance Mode (Function Code 99)
312
Other Service Functions
313
Developer Roller Counter Reset Function
313
Parts Life Reset Function
314
Deletion of User Setting Information, Etc
314
Continue Mode / Stop Mode Settings of Toner Cartridge
315
Drum Cleaning
315
ON/OFF Setting of Deep Sleep Function
316

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Brother DCP-7057E Manuals

Brother DCP-7057E Service Manual (337 pages)

Table of Contents

Table of Contents

Chapter 3 Disassembly/Reassembly

Chapter 5 Service Functions

Chapter 1 Specifications

Chapter 1 Specifications

Chapter 2 Error Indication and Troubleshooting

Chapter 2 Error Indication and Troubleshooting

Chapter 3 Disassembly/Reassembly

Chapter 4 Adjustments and Updating of Settings, Required after Parts Replacement

Chapter 7 Periodical Maintenance

Chapter 5 Service Functions

Chapter 6 Circuit Diagrams

Brother DCP-7057E Service Manual (343 pages)

Table of Contents

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