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Brother International MFC-P2000 Service Manual - Page 96

TROUBLESHOOTING MALFUNCTIONS, No AC power supplied

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7. TROUBLESHOOTING MALFUNCTIONS When carrying out countermeasures for malfunctions as described in this section, check connectors for contact failure before measuring the voltage at the specified connector pins. 7.1 Printer Malfunctions M-1 No AC power supplied Possible cause Supply voltage Power plug Fuse (F1, F2) Wiring Step 1 Check Is the correct voltage present at the outlet? 2 Is the power cord securely plugged into the outlet? 3 Is the fuse blown? 4 Unplug the power supply plug. Is there a broken wire between the AC input connector of the low-voltage power supply and the power plug? Result No No Yes Yes Remedy Inform the user that the correct voltage is not supplied at the outlet. Plug the power cord securely into the outlet. If the fuse blows again immediately after replacing the low-voltage power supply PCB, check that there is not a short circuit somewhere in the AC power supply line. Replace the AC power cord. M-2 No DC power supplied Possible cause AC power supply Wiring, DC load Low-voltage power supply PCB Step 1 2 Check Is AC power supplied between connectors CN1-L and CN1-N when the power plug is plugged into the outlet? Turn the power switch OFF and disconnect the P13 connector (panel sensor PCB). Turn the power switch ON again. Measure the voltages between the terminals. Do the measured voltage satisfy the prescribed value in the table below? PCB + lead pin - lead pin Voltage Panel P8-1 Sensor P8-4 Approx. 24V P8-2 P8-3 Approx. 5V Result No Remedy Follow the same check procedure of M-1 "No AC power supplied". Yes Turn the power switch OFF, reconnect the connector and turn the power switch ON again. If the protector circuit is activated, check the connector, the wiring from the connector, and the DC load. No Replace the low-voltage power supply PCB. Caution: If you analyze malfunctions with the power plug inserted into the power outlet, special caution should be exercised even if the power switch is OFF because it is a single pole switch. IV-27

Section	Page
HL-P2000, MFC-P2000 Parts and Service Manual.pdf	130
Action 1: Check the Supplied Items	131
Action 2: Position the Machine	132
Power Supply	132
Environment	132
System Requirements for the Brother Printing Solution for Windows	132
Action 3: Install the Toner Cartridge/Drum Unit	133
Action 4: Load Paper into Your Machine	134
Action 5: Connect Your Machine to Your Computers' Parallel Interface	136
Action 6: Plug in and Turn on Your Machine	137
Printing a Test Sample Page	138
Action 7-1: Installation from CD-ROM	139
For Windows 95/98/NT4.0	139
For Windows 3.1/3.11	139
Action 7-2: Prepare the Printer Driver and the Scanner Driver for the Machine	140
For Windows 3.1	140
For Windows 95/98	140
Action 7-3: Prepare DOS for the Machine	141
How to Use the Machine in Your DOS Application Software	141
What Does Remote Printer Console Do?	142
Installing the Remote Printer Console	142
Using the Remote Printer Console Main Program	143
Using the Machine Status Monitor Program	144
Lamps and Switch for the Printing Function	145
Ready (Paper) Lamp	145
Data (Toner) Lamp	145
Drum Lamp	146
Alarm Lamp	146
Switch	146
Other Control Features	147
Copying Function	148
Copying in Standard Mode	148
To Make Settings for Each Copy	148
Photo/Text Button	149
Enlarge/Reduce Button	149
The Number of Copies	149
Error	150
Scanning Function	151
Scanning from TWAIN Compliant Applications	151
Scanning from the VISIONEER PaperPort LE Software	152
Scanning from the Unimessage Viewer Software	153
Replacing the Toner Cartridge	154
Replacing the Drum Unit	157
Alarm Indications at a Glance	160
Operator Calls for Printing Function	160
Operator Calls for Copying and Scanning Functions	162
Service Calls for the Printing Function	162
Service Calls for Copying and Scanning Functions	163
How to View the On-Line Setup Guide & User Guide	164
Machine Specifications	165
Printing	165
Copying	166
Scanning	166
Functions	166
Electrical and Mechanical	166
Regulations	167
Eng-ug.pdf	172
Chapter 1 Introduction	178
About the Guide Books	178
About your Machine	179
Machine Overview	179
System Requirements in Brother Printing Solution for Windows	180
Features	180
Operating and Storage Environment	183
Power Supply	183
Environment	183
Chapter 2 Paper Handling	185
Paper Specifications	185
Document Specifications	189
Multi-Purpose Sheet Feeder for Printing	190
Loading Paper into the Feeder	191
Two Side Printing	193
Output Tray and Paper Support Wire	194
Chapter 3 Ptint	195
Lamps and Switch	195
Ready (Paper) Lamp	195
Data (Toner) Lamp	196
Drum Lamp	196
Alarm Lamp	196
Switch	197
Other Control Features	197
Chapter 4 Copy	199
Copying in Standard Mode	199
To Make Settings for Each Copy	199
Photo/Text	200
Enlarge/Reduce	200
The Number of Copies	201
Error	202
Chapter 5 Scan	203
Scanning from TWAIN Compliant Applications	203
Scanning from the Visioneer PaperPort LE Software	204
Scanning from the Unimessage Viewer Software	205
Chapter 6 Maintenance	206
Replacing the Toner Cartridge	206
Replacing the Drum Unit	212
Cleaning the Machine	216
Cleaning the Machine Exterior	216
Cleaning the Machine Interior and Drum Unit	217
Cleaning the Scanning Unit	220
Re-Packing the Machine	221
Chapter 7 Troubleshooting	223
Alarm Indications at a Glance	223
Operator Calls for the Printing Function	223
Operator Calls for the Copying and Scanning Functions	225
Service Calls for the Printing Function	226
Service Calls for the Copying and Scanning Functions	227
Paper Jams	228
Q & A	232
Setting up the Machine Hardware	232
Setting up the Machine for Windows	232
Setting up the Machine for DOS	233
Paper Handling	234
Printing	235
Copy	236
Scan	236
Print Quality	237
Appendix	241
Printer Specifications	241
Printing	241
Copying	242
Scanning	242
Functions	243
Electrical and Mechanical	243
Parallel Interface Specifications	244
Resident Fonts	246
Bitmapped Fonts	246
Symbol Sets/Character Sets	247
HP LaseJet llP Mode	247
EPSON Mode	247
IBM Mode	247
Regulations	252
Index	258
PR99041.pdf	287
HL/MFC-P2000	288
PR99042.pdf	289
HL-1070	290
HL-820/1020/1040/1050	291
HL/MFC-P2000	292
PR99057.pdf	293

Match case Limit results 1 per page

IV-27

TROUBLESHOOTING MALFUNCTIONS

When carrying out countermeasures for

malfunctions

as described in this section, check

connectors for contact failure before measuring the voltage at the specified connector

pins.

7.1

Printer Malfunctions

M-1

No AC power supplied

Possible cause

Step

Check

Result

Remedy

Supply voltage

Is the correct voltage present

at the outlet?

Inform the user that the correct

voltage is not supplied at the

outlet.

Power plug

Is the power cord securely

plugged into the outlet?

Plug the power cord securely

into the outlet.

Fuse (F1, F2)

Is the fuse blown?

Yes

If the fuse blows again

immediately after replacing the

low-voltage power supply PCB,

check that there is not a short

circuit somewhere in the AC

power supply line.

Wiring

Unplug the power supply plug.

Is there a broken wire between

the AC input connector of the

low-voltage power supply and

the power plug?

Yes

Replace the AC power cord.

M-2

No DC power supplied

Possible cause

Step

Check

Result

Remedy

AC power

supply

Is AC power supplied between

connectors CN1-L and CN1-N

when the power plug is

plugged into the outlet?

Follow the same check

procedure of M-1 “No AC

power supplied”.

Wiring, DC load

Turn the power switch OFF

and disconnect the P13

connector (panel sensor PCB).

Turn the power switch ON

again. Measure the voltages

between the terminals.

Do the measured voltage

satisfy the prescribed value in

the table below?

Yes

Turn the power switch OFF,

reconnect the connector and

turn the power switch ON

again.

If the protector circuit is

activated, check the connector,

the wiring from the connector,

and the DC load.

Low-voltage

power supply

PCB

+ lead pin

- lead pin

Voltage

Panel

Sensor

P8-1

P8-4

Approx. 24V

P8-2

P8-3

Approx. 5V

Replace the low-voltage power

supply PCB.

Caution

If you analyze malfunctions with the power plug inserted into the power outlet, special

caution should be exercised even if the power switch is OFF because it is a single pole

switch.