Read Sharp MX-M950 / MX-MM1100 (serv.man20) Service Manual online
MX-M1100 IMAGE PROCESS SECTION H – 3
No.
Name
Function / Operation
1
Main charger unit
Charges the OPC drum surface evenly and negatively by negative discharge.
2
OPC drum
Forms electrostatic latent images by laser beams, and converts them into toner images through the development
operation.
operation.
3
Laser beam
Forms electrostatic latent images on the OPC drum. Radiated from the LSU.
4
Developer roller
Composes a magnetic brush with developer, and forms toner images on the OPC drum.
5
Developing doctor
Controls the thickness and the quantity of developer and toner on the MG roller to the proper levels.
6
Toner mixing roller
(Developing section)
(Developing section)
Mixes and circulates developer (carrier) and toner to uniformize the toner density and to charge toner negatively.
7
Toner supply roller
Supplies toner from the toner hopper to the developing unit.
8
Toner mixing roller
(Toner hopper section)
(Toner hopper section)
Mixes toner in the toner hopper.
9
Toner bottle
The toner bottle itself rotates to supply toner to the toner hopper unit.
10
Transfer idle roller
Applies a tension to the transfer belt.
11
Transfer belt
Transfers toner images from the OPC drum to paper.
12
Transfer roller
Applies a voltage to transfer toner from the OPC drum to paper.
13
Transfer drive roller
Drives the transfer belt.
14
Transfer tension roller
Applies a proper tension to the transfer belt.
15
Transfer cleaning blush
Remove and clean unnecessary residual toner from the transfer belt after transfer.
16
Transfer cleaning blade
Remove and clean unnecessary residual toner from the transfer belt after transfer.
17
Waste toner transport screw
(Transfer section)
(Transfer section)
Transports waste toner in the transfer unit to the waste toner collection section.
18
OPC drum separation pawl
Separates paper from the OPC drum.
19
Photoconductor cleaning blade
Remove and clean unnecessary residual toner from the OPC drum.
20
Photoconductor cleaning brush
roller
roller
Remove and clean unnecessary residual toner from the OPC drum.
21
Waste toner transport screw
(Photoconductor cleaning section)
(Photoconductor cleaning section)
Transports waste toner in the transfer unit to the waste toner collection section.
22
Main high voltage PWB
Outputs the developing bias voltage, the main charger voltage, the transfer voltage, and the transfer cleaning
voltage.
voltage.
23
Sub high voltage PWB
Outputs the transfer cleaning voltage.
Code
Name
Function / Operation
Type
DESS
Surface potential sensor
Detects the drum surface potential after exposure or after non-exposure.
Feed-back type surface
potential sensor
potential sensor
TCS
Toner density sensor
Detects the toner density in the developing unit. The transmission-type magnetic
sensor is employed.
sensor is employed.
Magnetic sensor
HUS-CL /
TH -CL
TH -CL
Temperature humidity sensor
Detects the temperature and the humidity in the image process section. The detection
result is reflected on the process control.
result is reflected on the process control.
Humidity sensor /
Thermistor
Thermistor
TFSD
Toner sensor
Detects the toner remaining quantity in the toner hopper. The signal will be used in
process control.
process control.
Piezoelectric sensor
PTDL
Transfer front discharge lamp
Reduces the OPC drum potential before transfer to improve the transfer efficiency.
LED
DL
Discharge lamp
Discharges the residual potential on the OPC drum by the lamp light.
LED
PCS
Image density sensor
Detects the toner patch density on the OPC drum for the process control operation.
Reflection type sensor
CRUM
CRUM chip
Saves various information of the toner bottle.
Memory IC
Click on the first or last page to see other MX-M950 / MX-MM1100 (serv.man20) service manuals if exist.