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Engine I/O, 1.3.12 Panel I/O

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CHAPTER 3 THEORY OF OPERATION 1.3.11 Engine I/O The interface with the engine PCB is by full-duplex synchronous serial method, of which transfer rate is 520kbps. U5 ENGDI 3D 254 ENGDI 253 ENGRSTN 255 ENGDO TP200 VDD3 R104 1k TP201 R100 100 ENGDI 2D VDD5 VDD3 R101 4.7k TP202 TP203 TP204 R103 100 TP205 ENGINE CN8 1 3.3V 5 RESET 3 TXD 4 RXD 6 5V R102 4.7k C106 C102 C119 C103 C101 C101 C103 Aurora 0V Fig. 3-21 C117 C118 C105 2 0V B6B-PH-K-S U7 ENGDI 3D 254 ENGDI 253 ENGRSTN 255 ENGDO Aurora TP200 TP201 VDD3 R142 1k R138 100 ENGDI 1D VDD5 TP202 TP203 TP204 R141 100 R139 4.7k VDD3 L10 L14 L12 TP205 L13 L15 ENGINE CN9 0 1 3.3V 0 5 RESET 0 3 TXD 0 4 RXD 0 6 5V C143 C102 R140 4.7k C154 C103 C103 C101 C101 C152 C153 C142 0V Fig. 3-22 L11 0 2 0V B6B-PH-K-S 1.3.12 Panel I/O The interface with the panel PCB is by full-duplex synchronous serial method. LED0 3D SW0 3E LED2 3D LED1 3D LED3 3E SW1 3E LED4 3E TP210 TP211 C101 C101 C101 VDD3 R109 1k R106 1k R107 1k R108 1k L15 MMZ1608Y601B MMZ1608Y601B L16 MMZ1608Y601B L17 MMZ1608Y601B L13 MMZ1608Y601B L14 0V VDD5 PANEL CN9 4 LED0/PNLRSTN 5 SW0/PNLDI 6 LED2/PNLDO 7 LED1/PNLCLK 2 LED3 1 SW1 3 LED4 8 GND 9 VDD5 B9B-PH-K-S LED 1-8 PIN PANEL 4-9 PIN Buzzer+LED 2-9 PIN C112 C101 C113 C101 C108 C101 C109 C101 C110 C107 C111 0V Fig. 3-23 LED0 3D SW0 3E LED2 3D LED1 3D LED3 3E SW1 3E LED4 3E TP210 TP211 0V C146 C101 C145 C101 C150 C101 C149 C101 C147 C101 C144 C101 C148 C101 VDD3 R148 1k R145 1k Fig. 3-24 R146 1k R147 1k PANEL CN10 MMZ1608Y601B L18 4 LED0/PNLRSTN L19 MMZ1608Y601B L20 MMZ1608Y601B L16 MMZ1608Y601B 5 SW0/PNLDI 6 LED2/PNLDO 7 LED1/PNLCLK 2 LED3 L17 MMZ1608Y601B L21 0 0V L22 0 VDD5 1 SW1 3 LED4 8 GND 9 VDD5 B9B-PH-K-S LED 1-8 PIN PANEL 4-9 PIN BUZZER+LED 2-9 PIN 3-14

Section	Page
HL-5030/5040/5050/5070 Service Manual	1
PREFACE	3
TABLE OF CONTENTS	4
REGULATION	9
SAFETY INFORMATION	11
CHAPTER 1 GENERAL	13
1. FEATURES	13
2. OVERVIEW	15
3. SPECIFICATIONS	16
3.1 Printing	16
3.2 Functions	17
3.3 Electrical and Mechanical	18
3.4 Network	19
3.5 Paper	20
3.5.1 Feedable paper	20
3.5.2 Paper cassette capacity	22
3.5.3 Print delivery	22
3.6 Printable Area	24
3.6.1 PCL5e/EPSON/IBM emulation	24
3.6.2 PCL6/BR-Script3 emulation	27
3.7 Print Speeds with Various Settings	28
3.8 Toner Cartridge Weight Information	29
4. SERIAL NO. DESCRIPTIONS	30
CHAPTER 2 INSTALLATION AND BASIC OPERATION	32
1. CONDITIONS REQUIRED FOR INSTALLATION	32
1.1 Power Supply	32
1.2 Environment	32
1.3 System Requirements for Brother Printer Solution for Windows	33
2. UNPACKING	34
3. INSTALL THE PRINTER	35
3.1 For All Users	35
3.1.1 Install the drum unit assembly	36
3.1.2 Load paper into the paper tray	36
3.1.3 Print a test page	37
3.2 For Windows Users	38
3.3 For Macintosh Users	42
4. PRINTING METHODS	45
4.1 Printing from the Paper Tray	45
4.2 Printing from manual feed tray (HL-5030/5040 only)	45
4.3 Printing from Multi-purpose Tray (MP Tray) : HL-5050/5070N only	46
4.4 Printing on envelopes	48
4.5 Printing on transparencies	52
4.6 Printing on Both Sides of the Paper (manual duplex printing)	55
4.7 Guidelines for printing on both sides of the paper	57
4.8 Paper orientation for printing on both sides of the paper	58
5. CONTROL PANEL OPERATION	59
5.1 Control Panel Buttons & LED functions	59
5.1.1 LEDs	59
5.1.2 Control Panel Buttons	59
5.2 LED indications	60
5.3 Service call indications	62
5.4 Control Panel Button Operations	63
5.5 Other Control Features	64
5.5.1 Sleep mode	64
5.5.2 Print a test page	65
5.5.3 Printer Settings	65
5.5.4 Print fonts (For HL-5040, HL-5050, and HL-5070N)	66
6. NETWORK FUNCTIONS	67
6.1 LED functions	67
6.2 Network Factory default setting (For HL-5070N)	67
7. PAPER CASSETTE INFORMATION (FOR EUROPE ONLY)	68
CHAPTER 3 THEORY OF OPERATION	69
1. ELECTRONICS	69
1.1 General Block Diagram	69
1.2 Main PCB Block Diagram	70
1.3 Main PCB	71
1.3.1 CPU	71
1.3.2 USB	73
1.3.3 IEEE1284	74
1.3.4 Network Interface	75
1.3.5 ROM	76
1.3.6 Flash ROM	77
1.3.7 SDRAM	78
1.3.8 Optional RAM	79
1.3.9 EEPROM	81
1.3.10 Reset Circuit	81
1.3.11 Engine I/O	82
1.3.12 Panel I/O	82
1.3.13 Video I/O	83
1.3.14 Power Supply	84
1.4 Engine PCB	85
1.5 Power Supply	86
1.5.1 Low-voltage power supply	86
1.5.2 High-voltage power supply	87
2. MECHANICS	88
2.1 Overview of Printing Mechanism	88
2.2 Paper Transfer	89
2.2.1 Paper supply	89
2.2.2 Paper registration	89
2.2.3 Paper eject	90
2.3 Sensors	91
2.3.1 Cover sensors	91
2.3.2 Toner sensors	91
2.3.3 Cassette sensor / Paper empty sensor (HL-5040/5050/5070N)	92
2.3.4 Paper eject sensor	92
2.3.5 MP-PE sensor	93
2.4 Drum Unit	94
2.4.1 Photosensitive drum	94
2.4.2 Primary charger	94
2.4.3 Transfer roller	94
2.4.4 Cleaner	94
2.5 Toner Cartridge	94
2.6 Print Process	94
2.6.1 Charging	94
2.6.2 Exposure stage	95
2.6.3 Developing	96
2.6.4 Transfer	96
2.6.5 Fixing stage	97
CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY	98
1. SAFETY PRECAUTIONS	98
2. DISASSEMBLY FLOW	99
3. DISASSEMBLY PROCEDURE	100
3.1 AC Cord	100
3.2 Drum Unit	100
3.3 Paper Tray	101
3.4 Access Cover	111
3.5 Rear Cover C	111
3.6 Outer Chute (for HL-5030/5040 only)	112
3.7 Rear Cover MP ASSY / Outer Chute MP ASSY (for HL-5050/5070N only)	113
3.8 Rear Cover L/R	114
3.9 Side Cover L/R	115
3.10 Top Cover	116
3.11 Front Cover ASSY (for HL-5030/5040 only)	119
3.12 MP Unit (for HL-5050/5070N only)	120
3.13 Fixing Unit	126
3.14 Laser Unit	135
3.15 Main PCB	137
3.16 Base Plate / LV Insulation Sheet	139
3.17 Engine PCB	140
3.18 High-voltage PS PCB ASSY	141
3.19 Low-voltage PS PCB ASSY	142
3.20 Paper Feeder	143
3.21 Frame L / Drive Unit	151
3.22 Fan Motor 60 Unit LV / Fan Motor 60 Unit	155
3.23 Frame R	156
4. PACKING	158
5. LUBRICATION	159
6. GUIDELINES FOR LEAD FREE SOLDER	160
CHAPTER 5 PERIODIC MAINTENANCE	163
1. CONSUMABLE PARTS	163
1.1 Drum Unit	163
1.2 Toner Cartridge	165
2. PERIODICAL REPLACEMENT PARTS	170
2.1 Fixing Unit	171
2.2 Paper Feeding Kit	174
3. PERIODICAL CLEANING	176
3.1 Cleaning the Printer Exterior	176
3.2 Cleaning the Drum Unit	176
3.3 Cleaning the Scanner Window	177
3.4 Cleaning the Electrical Terminals	178
4. MTBF / MTTR	179
CHAPTER 6 TROUBLESHOOTING	180
1. INTRODUCTION	180
1.1 Initial Check	180
1.2 Warnings for Maintenance Work	181
1.3 Identify the Problem	182
2. OPERATOR CALLS & SERVICE CALLS	183
2.1 Operator Calls	183
2.2 Service Calls	184
3. ERROR MESSAGE	186
3.1 Error Message in the Status Monitor	186
3.2 Error Message Printouts	187
4. PAPER PROBLEMS	188
4.1 Paper Loading Problems	188
4.2 Paper Jams	189
4.2.1 Clearing jammed paper	189
4.2.2 Causes & countermeasures	193
4.3 Paper Feeding Problems	194
5. SOFTWARE SETTING PROBLEMS	196
6. MALFUNCTIONS	199
7. IMAGE DEFECTS	204
7.1 Image Defect Examples	204
7.2 Diameter of Rollers	204
7.3 Troubleshooting Image Defect	205
7.4 Location of Grounding Contacts	224
7.4.1 Drum unit	224
7.4.2 Printer body & Paper cassette	224
8. INCORRECT PRINTOUT	225
9. NETWORK PROBLEM	228
9.1 Installation Problem	228
9.2 Intermittent Problem	229
9.3 TCP/IP Troubleshooting	230
9.4 UNIX Troubleshooting	230
9.5 Windows NT/LAN Server (TCP/IP) Troubleshooting	231
9.6 Windows 95/98/Me (or later) Peer to Peer Print (LPR) Troubleshooting	231
9.7 Windows 95/98/Me (or later) Peer to Peer (HP JetAdmin Compatible Method) Troubleshooting	232
9.8 Windows 95/98/Me/NT 4.0 (or later) Peer to Peer Print (NetBIOS) Troubleshooting	232
9.9 Brother Internet Print (TCP/IP) Troubleshooting	232
9.10 Windows 95/98/Me/2000/XP IPP Troubleshooting	233
9.11 Novell Netware Troubleshooting	233
9.12 AppleTalk Troubleshooting	234
9.13 DLC/LLC Troubleshooting	234
9.14 Web Browser Troubleshooting (TCP/IP)	234
CHAPTER 7 SERVICE SUPPORT SOFTWARE	235
1. CONTROL PANEL	235
1.1 Test Print Mode	235
1.2 Service Mode	236
1.3 Inspection Mode	237
2. HOW TO KNOW DRUM UNIT LIFE & PAGE COUNTER	239
3. HOW TO USE THE SELF-DIAGNOSTICS TOOLS	242
4. NVRAM DEFAULT VALUE	246
5. HOW TO REWRITE HL-5030/5040/5050/5070N FLASH ROM	247
Appendix 1. Main PCB Circuit Diagram, HL-5030/5040/5050 (1/3)	252
Appendix 2. Main PCB Circuit Diagram, HL-5030/5040/5050 (2/3)	253
Appendix 3. Main PCB Circuit Diagram, HL-5030/5040/5050 (3/3)	254
Appendix 4. Main PCB Circuit Diagram, HL-5070N (1/4)	255
Appendix 5. Main PCB Circuit Diagram, HL-5070N (2/4)	256
Appendix 6. Main PCB Circuit Diagram, HL-5070N (3/4)	257
Appendix 7. Main PCB Circuit Diagram, HL-5070N (4/4)	258
Appendix 8. Point to Point Connection Diagram	259
Appendix 9. Engine PCB Circuit Diagram (1/2)	260
Appendix 10. Engine PCB Circuit Diagram (2/2)	261
Appendix 11. Low-voltage Power Supply PCB Circuit Diagram (120V)	262
Appendix 12. Low-voltage Power Supply PCB Circuit Diagram (230V)	263
Appendix 13. High-voltage Power Supply PCB Circuit Diagram	264

Match case Limit results 1 per page

CHAPTER 3 THEORY OF OPERATION

3-14

1.3.11 Engine I/O

The interface with the engine PCB is by full-duplex synchronous serial method, of which

transfer rate is 520kbps.

<HL-5030/5040/5050>

ENGDI

Aurora

254

ENGRSTN

253

ENGDO

255

R101

4.7k

VDD5

VDD3

R102

4.7k

VDD3

C106

C102

R103

100

C117

C103

C119

C103

C118

C101

C105

C101

R104

R100

100

TP202

TP203

TP200

TP201

TP204

TP205

CN8

3.3V

B6B-PH-K-S

TXD

RXD

RESET

ENGINE

Fig. 3-21

<HL-5070N>

ENGDI

Aurora

254

ENGRSTN

253

ENGDO

255

R139

4.7k

VDD5

VDD3

R140

4.7k

L11

VDD3

C143

C102

R141

100

C152

C103

C154

C103

C153

C101

C142

C101

L10

L15

L14

L12

L13

R142

R138

100

TP202

TP203

TP200

TP201

TP204

TP205

CN9

3.3V

B6B-PH-K-S

TXD

RXD

RESET

ENGINE

Fig. 3-22

1.3.12 Panel I/O

The interface with the panel PCB is by full-duplex synchronous serial method.

<HL-5030/5040/5050>

LED0

LED1

LED2

LED3

LED4

SW0

SW1

C111

C101

C107

L15

MMZ1608Y601B

L17

MMZ1608Y601B

L16

MMZ1608Y601B

L13

MMZ1608Y601B

L14

MMZ1608Y601B

C109

C108

C113

C112

C110

TP210

TP211

CN9

SW1

LED3

LED4

LED0/PNLRSTN

SW0/PNLDI

LED2/PNLDO

LED1/PNLCLK

GND

B9B-PH-K-S

VDD5

VDD3

VDD5

R109

R106

R107

R108

PANEL

LED

1-8 PIN

PANEL

4-9 PIN

Buzzer+LED

2-9 PIN

Fig. 3-23

<HL-5070N>

LED0

LED1

LED2

LED3

LED4

SW0

SW1

C148

C101

C144

L18

MMZ1608Y601B

L20

MMZ1608Y601B

L19

MMZ1608Y601B

L16

MMZ1608Y601B

L17

MMZ1608Y601B

C146

C145

C150

C149

C147

L21

TP210

TP211

CN10

SW1

LED3

LED4

LED0/PNLRSTN

SW0/PNLDI

LED2/PNLDO

LED1/PNLCLK

GND

B9B-PH-K-S

VDD5

VDD3

L22

VDD5

R148

R145

R146

R147

PANEL

LED

1-8 PIN

PANEL

4-9 PIN

BUZZER+LED

2-9 PIN

Fig. 3-24