IV
- 1
•
Tapping screws
S tight M3
:
7kgf
•
cm
B tight M3 x 6
:
5kgf
•
cm
M3 x 8
:
7kgf
•
cm
•
Stepped screws
M3
:
7kgf
•
cm
M4
:
10kgf
•
cm
Safety Precautions
(9)
When connecting or disconnecting cable connectors, hold the connector bodies not the
cables. If the connector has a lock, always slide the connector lock to unlock it.
(10) After repairs, check not only the repaired portion but also that the connectors and other
related portions function properly before operation checks.
Notes
•
On the next page is a disassembly order flow which helps you access the object
component.
•
Unless otherwise specified, the disassembled parts or components should be
reassembled in the reverse order of removal.
To prevent the creation of secondary problems by mishandling, observe the following precau-
tions during maintenance work.
(1)
Always turn off the power before replacing parts or units. When having access to the power
supply, be sure to unplug the power cord form the power outlet.
(2)
Be careful not to lose screws, washers, or other parts removed for parts replacement.
(3)
Be sure to apply grease to the teeth of gears.
(4)
When using soldering irons and other heat-generating tools, take care not to damage the
resin parts such as wires, PCBs, and covers.
(5)
Before handling the PCBs, touch a metal portion of the equipment to discharge static
electricity, or the electronic parts may be damaged due to the electricity charged in your
body.
(6)
When transporting PCBs, be sure to wrap them in conductive sheets such as aluminum
foil.
(7)
Be sure to reinsert self-tapping screws correctly, if removed.
(8)
Unless otherwise specified, tighten screws to the torque values listed below.
CHAPTER
IV
MECHANICAL SYSTEM
Summary of Contents for 1660e - B/W Laser Printer
Page 1: ...MECHANICS ELECTRONICS SERVICE MANUAL LASER PRINTER ...
Page 109: ...Appendix 3 Main PCB Circuitry Diagram 1 7 CODE UK3787000 B48K294 295CIR 1 7 NAME A 3 ...
Page 110: ...Appendix 4 Main PCB Circuitry Diagram 2 7 CODE UK3787000 B48K294 295CIR 2 7 NAME A 4 ...
Page 111: ...Appendix 5 Main PCB Circuitry Diagram 3 7 CODE UK3787000 B48K294 295CIR 3 7 NAME A 5 ...
Page 112: ...Appendix 6 Main PCB Circuitry Diagram 4 7 CODE UK3787000 B48K294 295CIR 4 7 NAME A 6 ...
Page 113: ...Appendix 7 Main PCB Circuitry Diagram 5 7 CODE UK3787000 B48K294 295CIR 5 7 NAME A 7 ...
Page 114: ...Appendix 8 Main PCB Circuitry Diagram 6 7 CODE UK3787000 B48K294 295 CIR 6 7 NAME A 8 ...
Page 115: ...Appendix 9 Main PCB Circuitry Diagram 7 7 CODE UK3787000 B48K294 295CIR 7 7 NAME A 9 ...
Page 116: ...Appendix 10 Control Panel PCB Circuitry Diagram 1 1 A 10 CODE NAME UK2527000 B48K143CIR ...
Page 117: ...Appendix 11 Scanner LD PCB Circuitry Diagram 1 1 A 11 CODE NAME UK2674000 B48K165CIR ...