Disassembly, Assembly, Lubrication - Sharp UX-4000M - UX 4000 B/W Laser Printer Service Manual

UX-4000MU
FO-2950MU/C
[2] Disassembly, assembly,
lubrication
This chapter describes the disassembly, assembly, and lubrication
procedures.
(Contents)
This chapter describes the disassembly procedures of parts. For as-
sembly, reverse the disassembly procedures.
If a special care is required, a note is provided.
1. Panel unit
2. Top cabinet, rear cabinet
3. Control PWB unit, TEL/LIU PWB unit, Printer unit
4. Printer PWB unit, Power supply PWB unit
5. Feed guide unit, Scanner bracket
6. Document guide lower, Scanner unit
7. Panel unit, Document guide upper unit
8. Drive unit
9. Upper frame unit (optical frame unit)
10. Main motor
11. Paper feed roller
12. Paper feed solenoid
13. Sleeve release lever
14. PE lever (Paper Empty lever)
15. Lock lever
16. Fan belt
17. Fusing unit
18. Separate nails
19. Heat roller, heater lamp
20. Thermal fuses
21. Thermistor
22. AC connection wire
23. Paper exit roller upper
24. Transfer roller
25. Fusing roller
26. Separation electrode
27. PIN actuator (Paper in detection lever)
28. POUT actuator (Paper Out detection lever)
29. Separate plate ass'y
30. High voltage terminal DR-MC (High voltage terminal: Photocon-
ductor drum main charger)
31. High voltage terminal TC (High voltage terminal: transfer charger)
32. DV bias electrode
(Necessary tools)
No special tools are required for disassmbly and assembly of this
machine.
As general tools, screwdrivers (+) (–) (Large/small), spring hook, and
tweezers are used.
(Grease)
The following grease is used in this machine.
No. Parts code
1 UKOG-0168FCZZ
2 UKOG-0238FCZZ
Major points to be greased are as follows.
[Conductive grease]
• Apply a small quantity of grease to the transfer roller and the high
voltage terminal TC.
[Floil G-484]
• Inner circumference and tooth surface of the fusing clutch gear
• Tooth surface of the main motor gear.
• Paper feed roller gear, Clutch R sleeve, Clutch spring
• The shaft and tooth surface of the other gears.
• Developer drive gear A tooth peripheral
• PU idle gear A tooth peripheral
When any parts which require greasing up are disassembled or re-
placed, be sure to grease them when reassembling.
1
Note: Be careful not to apply grease to the fan belt.
Apply Floil G-484
(UKOG-0238FCZZ)
to all the gear shafts.
Apply Floil G-484
(UKOG-0238FCZZ)
3 – 11
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Part name
rank
AR Conductive grease
BB Floil G-484
Fan belt
Apply Floil G-484
(UKOG-0238FCZZ)
Fig. 1