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4-32
Confidential
4.2
TROUBLESHOOTING
4.2.1 Introduction
This section gives the service personnel some of the troubleshooting procedures to be followed
if an error or malfunction occurs with the machine. It is impossible to anticipate all of the
possible problems which may occur in future and determine the troubleshooting procedures, so
this section covers some sample problems. However, those samples will help service personnel
pinpoint and repair other defective elements if he/she analyzes and examines them well.
4.2.2 Precautions
Be sure to observe the following to prevent the secondary troubles from happening:
(1) Always unplug the AC power cord from the outlet when removing the covers and PCBs,
adjusting the mechanisms, or conducting continuity testing with a circuit tester.
(2) When disconnecting the connectors, do not pull the lead wires but hold the connector
housings.
(3) Static electricity charged in your body may damage electronic parts.
Before handling the PCBs, touch a metal portion of the machine to discharge static
electricity charged in your body. When transporting PCBs, be sure to wrap them in
conductive sheets.
When replacing the head/carriage unit, put on a grounding wrist band and perform the job
on a static mat. Also take care not to touch the conductor sections on the flat cables.
After repairing the defective section, be sure to check again if the repaired section works
correctly. Also record the troubleshooting procedure so that it would be of use for future trouble
occurrence.
4.2.3 Checking Prior to Troubleshooting
Prior to proceeding to the troubleshooting procedures given in
, make the
following initial checks:
Environmental conditions
Check that:
(1) The machine is placed on a flat, firm surface.
(2) The machine is used in a clean environment at or near normal room temperature (10
°
C to
35
°
C) with normal relative humidity (20 to 80%).
(3) The machine is not exposed to direct sunlight or harmful gases.
Power requirements
Check that:
(1) The power supply specified on the rating plate on the machine is used. The supply voltage
stays within the rating ±10%.
(2) Each voltage level on AC input lines and DC lines is correct.
(3) All cables and harnesses are firmly connected.
Содержание DCP 385C - Color Inkjet - All-in-One
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Страница 19: ...Confidential CHAPTER 1 PARTS NAMES AND FUNCTIONS ...
Страница 24: ...1 4 Confidential 1 2 CONTROL PANEL Machine MFC990CW 790CW 9 7 8 6 1 2 3 4 5 ...
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Страница 26: ...1 6 Confidential MFC490CW 5 6 9 1 4 3 2 8 7 ...
Страница 27: ...1 7 Confidential ...
Страница 28: ...1 8 Confidential MFC290C 250C 5 6 9 10 1 4 2 8 7 3 ...
Страница 29: ...1 9 Confidential ...
Страница 30: ...1 10 Confidential DCP585CW 385C 4 3 2 1 5 6 7 8 9 ...
Страница 31: ...1 11 Confidential DCP185C 165C 145C 2 6 5 9 10 3 4 8 7 1 Mono Start Colour Start Ink Management ...
Страница 32: ...1 12 Confidential ...
Страница 33: ...1 13 Confidential Cordless handset For models with cordless handsets ...
Страница 34: ...1 14 Confidential ...
Страница 37: ...Confidential CHAPTER 2 SPECIFICATIONS ...
Страница 74: ...2 35 Confidential ITU T Test Chart 1 ...
Страница 75: ...2 36 Confidential Brother Chart ...
Страница 76: ...Confidential CHAPTER 3 THEORY OF OPERATION ...
Страница 123: ...Confidential CHAPTER 4 ERROR INDICATION AND TROUBLESHOOTING ...
Страница 127: ...4 2 Confidential 1 Error messages appearing on the LCD On the machine ...
Страница 128: ...4 3 Confidential For MFC only ...
Страница 129: ...4 4 Confidential For MFC only ...
Страница 130: ...4 5 Confidential For MFC only ...
Страница 131: ...4 6 Confidential For MFC only ...
Страница 178: ...Confidential CHAPTER 5 HANDLING DATA HELD IN THE MACHINE PRIOR TO REPAIR ...
Страница 182: ...Confidential CHAPTER 6 DISASSEMBLY REASSEMBLY AND LUBRICATION ...
Страница 296: ...Confidential CHAPTER 7 ADJUSTMENTS AND UPDATING OF SETTINGS REQUIRED AFTER PARTS REPLACEMENT ...
Страница 303: ...7 5 Confidential 8 Alert warning message of WHQL appears Click Continue Anyway to proceed ...
Страница 312: ...7 14 Confidential Head Positioning Test Pattern ...
Страница 316: ...7 18 Confidential Paper Feeding Check Pattern for the Paper Feed Roller ...
Страница 317: ...7 19 Confidential Paper Feeding Check Pattern for the Paper Ejection Roller ...
Страница 319: ...7 21 Confidential Vertical Alignment Check Patterns 2 2 ...
Страница 323: ...7 25 Confidential Left and Right Margin Check Pattern ...
Страница 324: ...7 26 Confidential Bottom Margin Check Pattern ...
Страница 337: ...7 39 Confidential A B C D ...
Страница 344: ...Confidential CHAPTER 8 CLEANING ...
Страница 348: ...8 3 Confidential Maintenance unit Head wiper Head cap unit cleaning_duplex Rubycel stick ...
Страница 349: ...Confidential CHAPTER 9 MAINTENANCE MODE ...
Страница 359: ...9 7 Confidential Scanning Compensation Data List ...
Страница 362: ...9 10 Confidential Test Pattern ...
Страница 367: ...9 15 Confidential Configuration List ...
Страница 371: ...9 19 Confidential MFC290C 250C DCP585CW 385C DCP185C 165C 145C Key Entry Order ...
Страница 387: ...9 35 Confidential Paper Feeding Check Pattern for the Paper Feed Roller ...
Страница 388: ...9 36 Confidential Paper Feeding Check Pattern for the Paper Ejection Roller ...
Страница 393: ...9 41 Confidential Vertical Alignment Check Patterns 1 2 ...
Страница 394: ...9 42 Confidential Vertical Alignment Check Patterns 2 2 ...
Страница 398: ...9 46 Confidential Left and Right Margin Check Pattern ...
Страница 399: ...9 47 Confidential Bottom Margin Check Pattern ...
Страница 441: ...App 2 3 Confidential 8 Alert warning message of WHQL appears Click Continue Anyway to proceed ...
Страница 524: ...App 6 4 Confidential B Power supply PCB 100 V series ...
Страница 525: ...App 6 5 Confidential B Power supply PCB 200 V series ...