Brother HL 2040 Manuale di servizio - Pagina 4

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4.3

Printing on Thick Paper, Card Stock, Labels, and Envelopes from the Manual Feed Slot

........................................................................................................................................ 2-15

4.4

Duplex Printing ............................................................................................................... 2-17

4.5

Paper Orientation for Manual Duplex Printing ................................................................ 2-20

CONTROL PANEL OPERATION.......................................................................... 2-21

5.1

Control Panel Button & LED Functions (Printer Status) ................................................. 2-21

5.1.1 Control panel button..........................................................................................................2-21

5.1.2 LEDs .................................................................................................................................2-21

5.2

LED Indications .............................................................................................................. 2-22

5.3

Service Call Indications .................................................................................................. 2-24

5.4

Control Panel Button (Go button) ................................................................................... 2-25

5.5

Other Control Features................................................................................................... 2-25

5.5.1 Print a test page ................................................................................................................2-25

5.5.2 Print a printer settings page ..............................................................................................2-26

5.5.3 Print fonts (For HL-2070N) ................................................................................................2-26

NETWORK FUNCTIONS (FOR HL-2070N).......................................................... 2-27

6.1

LED Functions ................................................................................................................ 2-27

6.2

Network Factory Default Setting (For HL-2070N)........................................................... 2-27

6.3

Network Factory Default Setting with APIPA Protocol Disabled (For HL-2070N) .......... 2-28

OPTIONAL PRINT SERVER................................................................................. 2-29

CHAPTER 3 THEORY OF OPERATION................................................. 3-1

ELECTRONICS ...................................................................................................... 3-1

1.1

General Block Diagram .................................................................................................... 3-1

1.2

Main PCB Block Diagram ................................................................................................. 3-2

1.3

Main PCB ......................................................................................................................... 3-3

1.3.1 CPU.....................................................................................................................................3-3

1.3.2 USB interface ......................................................................................................................3-5

1.3.3 IEEE 1284 interface ............................................................................................................3-6

1.3.4 Network interface ................................................................................................................3-8

1.3.5 ROM ....................................................................................................................................3-9

1.3.6 SDRAM .............................................................................................................................3-11

1.3.7 EEPROM...........................................................................................................................3-13

1.3.8 Reset circuit ......................................................................................................................3-13

1.3.9 Panel I/O ...........................................................................................................................3-14

1.3.10 Video I/O ...........................................................................................................................3-15

1.3.11 Power supply.....................................................................................................................3-16

1.4

Power Supply.................................................................................................................. 3-17

1.4.1 Low-voltage power supply.................................................................................................3-17

1.4.2 High-voltage power supply ................................................................................................3-18

MECHANICS ........................................................................................................ 3-19

2.1

Overview of Printing Mechanism .................................................................................... 3-19

2.2

Paper Transfer ............................................................................................................... 3-20

2.2.1 Paper supply .....................................................................................................................3-20

2.2.2 Push-up function of paper tray ..........................................................................................3-22

2.2.3 Paper registration..............................................................................................................3-24

2.2.4 Paper eject ........................................................................................................................3-25

iii

HL-2030/2040/2070N SERVICE MANUAL

Confidential