MX-3050N, MX-3060N, MX-3070N, MX-3550N, MX-3560N, MX-3570N, MX-4050N, MX-4060N, MX-4070N (serv.man6). NOTE Service Manual for models with the V suffix only. - Sharp Copying Equipment Service Manual (repair manual). Page 26

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MX-4070V  EXTERNAL VIEW AND INTERNAL STRUCTURE  4 – 4
2. Internal structure
No.
Name
Function/Operation
Note
1
The main power switch
Use this switch to turn on the power for the machine. When using the 
fax or Internet fax functions, always keep this switch in the “ | ” 
position.
2
Toner cartridge
This cartridge contains toner. When the toner in a cartridge runs out, 
replace with new one.
3
Waste toner box
This container collects excess toner that remains after printing.
A service technician collects 
replaced waste toner box.
4
Fusing unit
Heat is applied here to fuse the transferred image onto the paper.
The fusing unit is hot. Take 
care not to burn yourself when 
removing a misfeed.
5
Transfer belt
During full color printing, the toner images of the four colors on the 
photoconductive drums are combined
together on the transfer belt. During black and white printing, only the 
black toner image is transferred onto the transfer belt.
Do not touch or damage the 
transfer belt. This may cause a 
defective image.
6
Right side cover
Open this cover to remove a paper misfeed.
7
Paper reversing section cover
This unit is used for reversing paper when 2-sided printing is 
performed. Open this cover to remove a paper misfeed.
8
Waste toner box release button
Press this button when you need to release the waste toner box lock to 
replace the waste toner box or clean the laser unit.
9
Handle
Pull this out and grasp it when moving the machine.
10
A stand/550/2x550/3x550/550&2100 sheet 
paper drawer right-side cover
Open this to remove a paper misfeed in tray 2, 3 and 4.
11
Paper tray right side cover
Open this to remove a paper misfeed in tray 1.
12
Right side cover release lever
To remove a paper misfeed, pull and hold this lever up to open the right 
side cover.
1
2
8
9
10 11 12
3
4
5
6
7
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