DOWNLOAD Sharp MX-5500N / MX-6200N / MX-7000N (serv.man61) Service Manual ↓ Size: 3.83 MB | Pages: 16 in PDF or view online for FREE

Model
MX-5500N MX-6200N MX-7000N (serv.man61)
Pages
16
Size
3.83 MB
Type
PDF
Document
Service Manual
Brand
Device
Copying Equipment / Detailed Section
File
mx-5500n-mx-6200n-mx-7000n-sm61.pdf
Date

Sharp MX-5500N / MX-6200N / MX-7000N (serv.man61) Service Manual ▷ View online

MX-7000N  PHOTOCONDUCTOR SECTION  J – 4
2. Operational descriptions
The OPC drum surface is negatively charged by the charge unit.
The laser beam images are radiated to the OPC drum surface by
the laser (writing) unit to form latent electrostatic images.
1)
The OPC drum surface is negatively charged by the charge
unit.
The charge unit is provided with the screen grid. The OPC
drum is charged at a voltage virtually same as the voltage
applied to the screen grid.
2)
Laser lights are radiated to the OPC drum surface by the laser
(writing) unit to form latent electrostatic images.
When laser lights are radiated to the OPC drum CGL, negative
and positive charges are generated.
Positive charges generated in CGL are attracted to the nega-
tive charges on the OPC drum surface. At the same time, neg-
ative charges are attracted to positive charges in the aluminum
layer of the OPC drum.
Therefore, positive charges and negative charges are bal-
anced out on the OPC drum and in the aluminum layer, reduc-
ing positive and negative charges to decrease the OPC drum
surface voltage.
Electric charges remain at a position where laser lights are not
radiated.
As a result, latent electrostatic images are formed on the OPC
drum surface.
3)
After transfer operation, remaining toner is removed by the
cleaning blade.
Toner removed from the OPC drum surface is transported to
the waste toner section by the waste toner transport screw.
4)
The whole surface of the OPC drum is discharged.
By radiating the discharge lamp light to the discharge lens,
light is radiated through the lens to the OPC drum surface.
When the discharge lamp light is radiated to the OPC drum
CGL, positive and negative charges are generated.
Positive charges generated in CGL are attracted to the nega-
tive charges on the OPC drum surface. On the other hand,
negative charges are attracted to positive charges in the alumi-
num layer of the OPC drum.
Therefore, positive and negative charges are balanced out on
the OPC drum surface and in the aluminum layer, reducing
positive and negative charged to decrease the surface voltage
of the OPC drum.
Aluminum
layer
OPC drum
CTL
CGL
High voltage unit
Main corona unit
Screen grid
Aluminum
layer
OPC drum
Laser lights
OPC drum
CGL
CTL
CGL
CGL
Aluminum
layer
Aluminum
layer
CTL
CTL
lens
MX-7000N  PHOTOCONDUCTOR SECTION  J – 5
3. Disassembly and assembly
A. OPC drum unit (CL) 
(1) OPC durm unit (CL) 
1)
Remove the development unit (CL). (Refer to the "[L] DEVEL-
OPING SECTION".)
2)
Hold the lock lever (A), and pull out OPC drum unit (CL) gently,
and remove OPC drum unit (CL) (B) while supporting the lower
section with both hands.
a. Drum (CL)
1)
Remove the development unit (CL). (Refer to the "[L] DEVEL-
OPING SECTION".)
2)
Remove the OPC drum unit (CL). (Refer to the "(1) OPC durm
unit (CL)".)
3)
Remove the screws (A), and remove the fixing shaft (B).
4)
Slide the drum (CL) to the front side, and lift the OPC drum
rear side (C), and remove the drum (CL) (D) from the hole in
the front section.
* When installing, apply stearin acid to the drum (CL) surface
(E).
Unit
Page
A
OPC drum unit (CL) 
J - 5
B
OPC drum unit (BK) 
J - 7
C
Waste toner section
J -12
Unit
Parts
Mainte
nance
Page
1
OPC drum 
unit (CL) 
a
Drum (CL)
J - 5
b
Charge unit
J - 6
c
Side seal F (CL)
J - 6
d
Side seal R (CL)
e
Toner reception seal (CL)
f
Cleaner blade (CL)
g
Toner mixing sheet
Unit
1
OPC drum unit (CL) 
1-b
1-c
1-a
1-e
1-f
1-d
1
1-g
1
A
B
1
Unit
Parts
Mainte
nance
1
OPC drum unit (CL) 
a
Drum (CL)
1-a
A
B
A
C
D
1-a
E
MX-7000N  PHOTOCONDUCTOR SECTION  J – 6
b. Charge unit (CL)
1)
Remove the development unit (CL). (Refer to the "[L] DEVEL-
OPING SECTION".)
2)
Remove the OPC drum unit (CL). (Refer to the "(1) OPC durm
unit (CL)".)
3)
Remove the drum (CL). (Refer to the "a. Drum (CL)".)
4)
Remove the screws (A), and remove the cover (B).
5)
Remove the lock pawl (C) with a screwdriver, and remove the
MC cleaner shaft (D).
6)
Disengage the pawl (E), and remove the cover (F). Remove
the Charge unit (G).
* When installing the cover (F), be careful so that the other
side of the side with the pawl doesn't separate.
c. Side seal F (CL), Side seal R (CL), Toner reception seal
(CL), Cleaner blade (CL), Toner mixing sheet
1)
Remove the development unit (CL). (Refer to the "[L] DEVEL-
OPING SECTION".)
2)
Remove the OPC drum unit (CL). (Refer to the "(1) OPC durm
unit (CL)".)
3)
Remove the drum (CL). (Refer to the "a. Drum (CL)".)
4)
Remove the Charge unit. (Refer to the "b. Charge unit".)
5)
Remove the side seal F (CL) (A), the side seal R (CL) (B), and
the toner reception seal (CL) (C).
Unit
Parts
Mainte
nance
1
OPC drum unit (CL) 
b
Charge unit (CL)
1-b
A
A
B
C
D
D
Unit
Parts
Mainte
nance
1
OPC drum unit (CL) 
c
Side seal F (CL)
d
Side seal R (CL)
e
Toner reception seal (CL)
f
Cleaner blade (CL)
g
Toner mixing sheet
F
A
1-b
G
E
1-c
1-e
1-f
1-d
1-g
A
B
C
1-c
1-e
1-d
MX-7000N  PHOTOCONDUCTOR SECTION  J – 7
* When attaching, position it within the specified range shown
from the reference line in the figure below.
6)
Remove the screws (D), and remove the cleaner blade (CL)
(E) and the toner mixing sheet (F).
* When installing screw (D), install the screw to the hole
shown with mark of arrow in the order of numeral (1, 2, 3)
mark.
B. OPC drum unit (BK) 
(1) OPC drum unit (BK) 
1)
Remove the development unit (BK). (Refer to the "[L] DEVEL-
OPING SECTION".)
2)
Remove the Charge unit (BK). (Refer to the "a. Charge unit
(BK)".)
3)
Hold the handle part, and remove the OPC drum unit (BK) (A).
0 - 0.5mm
0 - 0.5mm
0 - 0.5mm
0 - 0.3mm
0 - 0.3mm
0 - 0.3mm
Reference
line
Reference line
Reference line
Reference line
Reference line
3
2
1
D
D
D
E
F
1-f
1-g
Unit
Parts
Mainte
nance
Page
1
OPC  drum 
unit (BK) 
a
Charge unit (BK)
J - 8
b
Drum (BK)
J - 8
c
Side seal F (BK)
d
Side seal R (BK)
e
Discharge lamp (K)
 {
f
Cleaner blade (BK)
J - 9
g
Cleaning brush (BK)
J -10
h
Charger cleaner HP 
detection
J -11
i
Sub blade
J -12
Unit
1
OPC drum unit (BK) 
1
1-b
1-e
1-g
1-f
1-h
1-d
1-a
1-c
1-i
1
A
1
Page of 16
Display

Sharp MX-5500N / MX-6200N / MX-7000N (serv.man61) Service Manual ▷ Download

  • DOWNLOAD Sharp MX-5500N / MX-6200N / MX-7000N (serv.man61) Service Manual ↓ Size: 3.83 MB | Pages: 16 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sharp MX-5500N / MX-6200N / MX-7000N (serv.man61) in PDF for free, which will help you to disassemble, recover, fix and repair Sharp MX-5500N / MX-6200N / MX-7000N (serv.man61) Copying Equipment. Information contained in Sharp MX-5500N / MX-6200N / MX-7000N (serv.man61) Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.