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9-24
Confidential
9.2 TROUBLESHOOTING
9.2.1 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.
9.2.2 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)
z
Before handling the PCBs, touch a metal portion of the machine to discharge static
electricity charged in your body.
z
When repairing the PCBs, handle them with extra care.
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.
9.2.3 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.
(4) None of the fuses are blown.
Содержание DCP-110C
Страница 10: ...Confidential CHAPTER 1 PARTS NAMES FUNCTIONS ...
Страница 14: ...1 3 Confidential 1 2 CONTROL PANEL MFC620CN FAX2440C ...
Страница 17: ...1 6 Confidential MFC210C ...
Страница 21: ...Confidential CHAPTER 2 SPECIFICATIONS ...
Страница 87: ...Confidential CHAPTER 3 THEORY OF OPERATION ...
Страница 103: ...3 15 Confidential Front end ASSY Piezoelectric plate Laminated electrode Manifold Damper Nozzle plate A A A A Channel ...
Страница 131: ...Confidential CHAPTER 4 TRANSFER OF DATA LEFT IN THE MACHINE TO BE SENT FOR REPAIR ...
Страница 136: ...Confidential CHAPTER 55 DISASSEMBLY REASSEMBLY AND LUBRICATION ...
Страница 168: ...5 30 Confidential Removing the head cover 2 Unlatch the head cover from the head carriage unit and pull it up ...
Страница 212: ...5 74 Confidential Routing C Backup battery harness and ink supply tubes MFC620CN and FAX2440C ...
Страница 214: ...5 76 Confidential Viewed from the left ...
Страница 220: ...Confidential CHAPTER 6 ADJUSTMENTS AND UPDATING OF SETTINGS REQUIRED AFTER PARTS REPLACEMENT ...
Страница 238: ...6 16 Confidential Paper Feeding Check Patterns for the Paper Feed Roller and Paper Ejection Roller A B ...
Страница 240: ...6 18 Confidential Vertical Alignment Check Patterns ...
Страница 243: ...6 21 Confidential Margin Check Pattern ...
Страница 253: ...Confidential CHAPTER 7 CLEANING ...
Страница 256: ...Confidential CHAPTER 8 MAINTENANCE MODE ...
Страница 267: ...8 9 Confidential Scanning Compensation Data List a b c d e f i ...
Страница 274: ...8 16 Confidential Configuration List ...
Страница 288: ...8 30 Confidential Paper Feeding Check Pattern for the Paper Feed Roller and Paper Ejection Roller A B ...
Страница 294: ...8 36 Confidential 1st sheet 2nd sheet Vertical Alignment Check Patterns ...
Страница 297: ...8 39 Confidential Margin Check Pattern ...
Страница 311: ...Confidential CHAPTER 9 ERROR INDICATION AND TROUBLESHOOTING ...
Страница 362: ...App 1 2 Confidential 2 Head property label Property label for the head carriage unit Location ...
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Страница 466: ...Confidential February 05 SM FAX028 8CA811 8 Printed in Japan ...