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Manuals and User Guides for Brother 1240. We have
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Brother 1240 manual available for free PDF download: Service Manual
Brother 1240 Service Manual (243 pages)
Brother Laser Printer SERVICE MANUAL HL-1030, 1240, 1250, 1270N
Brand:
Brother
| Category:
Printer
| Size: 5.21 MB
Table of Contents
4
Table of Contents
1
Service Manual
9
Regulation
11
Safety Information
13
Chapter 1 General
13
Features
16
Overview
17
Specifications
17
Printing
18
Functions
19
Electrical and Mechanical
20
Network (For HL-1270N Only)
20
Paper
20
Feedable Paper
22
Paper Cassette Capacity
22
Print Delivery
23
Printing Area
23
Effective Printing Area
23
Print Guaranteed Area
25
Chapter 2 Installation and Basic Operation
25
Conditions Required for Installation
25
Power Supply
25
Environment
25
System Requirements for Brother Printer Solution for Windows
26
Unpacking
27
Install the Printer
27
For Windows Users
29
For Windows Users with No CD-ROM Drive
29
Install the Drum Unit
29
Load Paper
29
Print a Test Page
30
Connect the Printer and the Computer
30
Install the Printer Driver From Floppy Disk
31
Using the USB Interface
31
Using the USB Interface (For Windows 98 Only)
31
Connect the USB Interface Cable
31
Install the USB Driver
33
Set the PC Printer Port
33
For Macintosh (Imac and Power Macintosh) with USB Users Only
34
Paper Handling
34
Load Paper Into the Paper Cassette
34
Load Paper Manually
35
Two Side Printing (Manual Duplexing)
35
To Print On Both Sides of the Paper From the Paper Cassette
36
To Print On Both Sides of the Paper From the Manual Feed Slot
37
Control Panel Operation
37
Ready (Paper) LED Indications
38
Data (Toner) LED Indications
38
Drum LED Indications
38
Alarm LED Indications
39
Control Panel Button Operations
39
Other Control Features
39
Sleep Mode
40
Test Print Mode
41
Network Board Operation (For Hl-1270N Only)
41
Preparing the Br-Net Board
41
Connect the Ethernet Cable
41
Install the Bradmin32: Configuration Utility (For Windows 95/98/NT 4.0 Users Only)
42
Print Configuration Page
42
Functions
42
LED Functions
42
Factory Default Setting
43
Chapter 3 Theory of Operation
43
Electronics
43
General Block Diagram
46
Main PCB Block Diagram
49
Main PCB
49
Asic
52
Rom
54
Flash ROM
54
Dram
56
Optional RAM
57
Optional Serial I/O
57
PCI Bus
58
Eeprom
58
Reset Circuit
59
Engine I/O
60
Engine PCB
60
Br-Net PCB (For HL-1270 Only)
61
Power Supply
61
Low-Voltage Power Supply
62
High-Voltage Power Supply
63
Mechanics
63
Overview of Printing Mechanism
65
Paper Transfer
65
Paper Supply
65
Paper Registration
66
Paper Eject
66
Sensors
66
Cover Sensors a and B
67
Toner Sensor
67
Drum Unit
67
Photosensitive Drum
67
Primary Charger
67
Transfer Roller
67
Cleaner
68
Print Process
68
Charging
68
Exposure Stage
69
Developing
70
Transfer
70
Fixing Stage
71
Chapter 4 Disassembly and Re-Assembly
71
Safety Precautions
72
Disassembly Flow
73
Disassembly Procedure
73
AC Cord
73
Drum Unit
74
Paper Cassette
80
Network Board (For HL-1270N Only)
81
Front Cover
82
Top Cover
83
Main Cover
85
Laser Unit
86
Drive Unit
88
Fixing Unit
99
Base Plate
101
Main PCB ASSY
101
Lower Tray Relay PCB ASSY (For HL-1250/1270N Only)
102
Low-Voltage Power Supply PCB ASSY
104
Engine PCB ASSY / High-Voltage Power Supply PCB ASSY
106
Panel PCB ASSY
106
Solenoid ASSY
109
Fan Motor ASSY
110
Toner Sensor PCB ASSY (Light Emission)
110
Toner Sensor PCB ASSY (Light Reception)
111
Paper Pick-Up Roller ASSY
112
Paper Feed Roller ASSY
113
Outer Chute 1
114
Packing
115
Chapter 5 Periodic Maintenance
115
Consumable Parts
115
Drum Unit
116
Toner Cartridge
118
Periodical Replacement Parts
119
Periodical Cleaning
119
Cleaning the Printer Exterior
119
Cleaning the Drum Unit
120
Cleaning the Scanner Window
120
Cleaning the Electrical Terminals
121
Mtbf / Mttr
123
Chapter 6 Troubleshooting
123
Introduction
123
Initial Check
124
Warnings for Maintenance Work
125
Identify the Problem
126
Operator Calls & Service Calls
126
Operator Calls
126
Service Calls
128
Error Messages
128
Error Messages in the Status Monitor
130
Error Message Printouts
131
Paper Problems
131
Paper Load Problems
132
Paper Jams
132
Clearing the Jammed Paper
133
Causes & Countermeasures
134
Paper Feeding Problems
136
Software Setting Problems
140
Malfunctions
145
Image Defects
145
Image Defect Examples
146
Troubleshooting Image Defect
163
Location of Grounding Contacts
163
Drum Unit
163
Printer Body & Paper Cassette
164
Incorrect Printout
167
Network Problem (For Hl-1270N Only)
167
Installation Problem
168
Intermittent Problem
169
TCP/IP Troubleshooting
169
UNIX Troubleshooting
170
Windows NT/LAN Server (TCP/IP) Troubleshooting
170
Windows 95/98 Peer to Peer Print (LPR) Troubleshooting
171
Windows 95/98 (Or Later) Peer to Peer (HP Jetadmin Compatible Method) Troubleshooting
171
Windows 95/98/NT 4.0 Peer to Peer Print (Netbios) Troubleshooting
171
Internet Print (TCP/IP) Troubleshooting
172
Novell Netware Troubleshooting
172
Appletalk Troubleshooting
173
Apple TCP/IP Printing (System 8.6 or Later)
173
Web Browser Troubleshooting (TCP/IP)
174
Inspection Mode
174
Test Print Mode
175
Inspection Mode
179
Serial No. Descriptions
181
Diameter / Circumference of Rollers
182
Print Speeds with Various Settings
183
How to Know Drum Unit Life & Page Counter
189
How to Use the Self-Diagnostics Tools
193
Nvram Default Value
194
Paper Cassette Information (For Europe Only
195
Connection Diagram, Hl-1030/1240
196
Connection Diagram, Hl-1250
197
Connection Diagram, Hl-1270N
198
Main Pcb Circuit Diagram, Hl-1030/1240 (1/2
199
Main Pcb Circuit Diagram, Hl-1030/1240 (2/2
200
Main Pcb Circuit Diagram, Hl-1250/1270N (1/5
201
Main Pcb Circuit Diagram, Hl-1250/1270N (2/5
202
Main Pcb Circuit Diagram, Hl-1250/1270N (3/5
203
Main Pcb Circuit Diagram, Hl-1250/1270N (4/5
204
Main Pcb Circuit Diagram, Hl-1250/1270N (5/5
205
Engine Pcb Circuit Diagram (Old
206
Engine Pcb Circuit Diagram (New
207
Network Board Circuit Diagram
208
Low-Voltage Power Supply Pcb Circuit Diagram (110 - 120V)
209
Low-Voltage Power Supply Pcb Circuit Diagram (220 - 240V)
210
High-Voltage Power Supply Pcb Circuit Diagram (Old
211
High-Voltage Power Supply Pcb Circuit Diagram (New
212
Differences Between Old & New Versions of Hvps & Engine Pcb
219
Parts Reference List
221
Table of Contents
222
Frame / Drive Unit
222
Laser Unit
224
Paper Feeder
226
Fixing Unit
230
Paper Cassette
231
Covers
234
Main Pcb
235
Engine Pcb
235
Low-Voltage Power Supply Pcb
237
Ac Cords
237
High-Voltage Power Supply Pcb
239
Accessories
241
Network Board
241
Packing Materials
243
Adjusting Tool
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