III-11
3.13
Main Motor Assy and Motor Heat Sink
(1)
Remove the two screws securing the main motor assy.
(2) Remove the two screws securing the motor heat sink.
Fig. 3.14
3.14
Gears and Solenoid
(1)
Apply grease the points shown below.
Grease:
MOLYKOTE EM-30L TKC-0
MOLYKOTE EM-D110
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NOTE: Apply EM-30L to the small gears (2 pcs.) inside the "Gear 45 arm assy".
Fig. 3.15
Apply grease to these points
after assembling (EM-D110)
Motor heat sink
Gear 40/Inside
cog 54
Main motor assy
Gear 45 arm assy
Gear for 20
Connection gear 30
Gear 14/47
Lever return spring
Grease (EM-30L)
Paper pick-up
solenoid lever
Solenoid
Clutch holder spring
Clutch release lever
Gear 20/94
Summary of Contents for HL-720
Page 1: ...SERVICE MANUAL MODEL HL 720 730 730Plus R LASER PRINTER ...
Page 36: ...II 19 1 3 10 Engine I O HL 720 Fig 2 21 shows the engine interface circuit Fig 2 21 ...
Page 37: ...II 20 HL 730 730Plus Fig 2 22 shows the engine interface circuit Fig 2 22 ...
Page 61: ... Fig 3 18 2 4 1 1 1 ...
Page 92: ...SERVICE MANUAL MODEL HL 760 R LASER PRINTER ...
Page 109: ...II 8 1 3 4 DRAM Two 4M bit DRAMs x 16bits are used as the RAM Fig 2 6 ...
Page 113: ...II 12 1 3 10 Engine I O Fig 2 12 shows the engine interface circuit Fig 2 12 ...
Page 114: ...II 13 1 3 11 Paper Feed Motor Drive Circuit Fig 2 13 ...
Page 133: ...Appendix 2 Main PCB Circuit Diagram 1 3 CODE UK3227000 B48K272CIR 1 3 NAME ...
Page 134: ...Appendix 3 Main PCB Circuit Diagram 2 3 CODE UK3227000 B48K272CIR 2 3 NAME ...
Page 135: ...CODE UK3227000 B48K272CIR 3 3 NAME Appendix 4 Main PCB Circuit Diagram 3 3 ...