5-1
Confidential
1. SAFETY PRECAUTIONS
To avoid creating secondary problems by mishandling, follow the warnings and precautions
below during maintenance work.
• Be careful not to lose screws, washers, or other parts removed.
• Be sure to apply grease to the gears and applicable positions specified in this chapter.
• When using soldering irons or other heat-generating tools, take care not to accidentally
damage parts such as wires, PCBs and covers.
• Static electricity charged in your body may damage electronic parts. When transporting
PCBs, be sure to wrap them in conductive sheets.
• When replacing the PCB and all the other related parts, 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 or on the wire harness.
• When connecting or disconnecting cable connectors, hold the connector body, not the
cables. If the connector has a lock, release the connector lock first to release it.
• After a repair, check not only the repaired portion but also all connectors. Also check that
other related portions are functioning properly before operational checks.
• After disconnecting flat cables, check that each cable is not damaged at its end or short-
circuited.
• When connecting flat cables, do not insert them at an angle. After insertion, check that the
cables are not at an angle.
WARNING
• Always turn off the power switch and unplug the power cord from the power outlet
before accessing any parts inside the machine.
• When opening the front cover or back cover to access any parts inside the machine,
never touch the shaded parts shown in the following figures.
• DO NOT use flammable substances such as alcohol, benzine, thinner or any type
of spray to clean the inside or outside of the machine. Doing this may cause a fire or
electrical shock.
Содержание DCP 8085DN
Страница 13: ...CHAPTER 1 SPECIFICATIONS ...
Страница 52: ...Confidential CHAPTER 2 THEORY OF OPERATION ...
Страница 69: ...2 16 Confidential 3 3 Paper Feeding Fig 2 18 LT path DX path MP path Paper tray path ...
Страница 89: ...CHAPTER 3 ERROR INDICATION AND TROUBLESHOOTING ...
Страница 178: ...Confidential CHAPTER 4 PERIODICAL MAINTENANCE ...
Страница 204: ...4 25 Confidential 23 Secure the Fuser unit with the pan B M4x20 Taptite screw Fig 4 37 Taptite pan B M4x20 Fuser unit ...
Страница 248: ...CHAPTER 5 DISASSEMBLY REASSEMBLY ...
Страница 265: ...5 12 Confidential Fig 5 7 EM2 4 places Separation pad ASSY ...
Страница 291: ...5 38 Confidential 38 Driver PCB Battery CIS model Main PCB Battery harness Drive PCB Battery Driver harness ...
Страница 400: ...5 147 Confidential 9 11 3 Printed Rubber Key 1 Remove the Printed rubber key Fig 5 170 Printed rubber key Panel cover ...
Страница 452: ...5 199 Confidential 9 33 Thermistor ASSY 1 Remove the Thermistor ASSY from the Frame L Fig 5 242 Frame L Thermistor ASSY ...
Страница 501: ...Confidential CHAPTER 6 ADJUSTMENTS AND UPDATING OF SETTINGS REQUIRED AFTER PARTS REPLACEMENT ...
Страница 507: ...6 5 Confidential 8 Alert warning message of WHQL appears Click Continue Anyway to proceed ...
Страница 516: ...CHAPTER 7 SERVICE MODE ...
Страница 525: ...7 7 Confidential For color scanning Fig 7 2 ...
Страница 527: ...7 9 Confidential For white and black scanning Fig 7 3 ...
Страница 528: ...7 10 Confidential For color scanning Fig 7 4 ...
Страница 567: ...Confidential CHAPTER 8 CIRCUIT DIAGRAMS WIRING DIAGRAM ...
Страница 569: ...8 1 Confidential 1 CIRCUIT DIAGRAMS High voltage Power Supply PCB Circuit Diagram Fig 8 1 ...
Страница 570: ...8 2 Confidential LVPS PCB Circuit Diagram 230V Fig 8 2 ...
Страница 571: ...8 3 Confidential LVPS PCB Circuit Diagram 115V Fig 8 3 ...