DOWNLOAD Sharp MX-6500N / MX-7500N (serv.man23) Service Manual ↓ Size: 4.5 MB | Pages: 32 in PDF or view online for FREE

Model
MX-6500N MX-7500N (serv.man23)
Pages
32
Size
4.5 MB
Type
PDF
Document
Service Manual
Brand
Device
Copying Equipment / Section 9 Maintenance
File
mx-6500n-mx-7500n-sm23.pdf
Date

Sharp MX-6500N / MX-7500N (serv.man23) Service Manual ▷ View online

MX-7500N  MAINTENANCE  9 – 8
Waste toner collection 
section
1
Waste toner box
X
X
Replacement reference: 100K under 
the standard environmental 
conditions (20 - 25degrees C 65 +/- 
5%) at the color ratio of "7 : 3 (Black 
: Color)" in the print ratio 5% 
document mode.
2
Sensors
X
X
For the reflection-type sensor, the 
other side must be also cleaned.
3
Gear
X
X
4
Bearing
X
X
Fusing 
section
Fusing unit
1
Fusing belt
-
2
Fusing roller
-
When replacing, apply grease 
(UKOG-0235FCZZ) to the shaft 
section.
3
Pressure roller
-
When replacing, apply grease 
(UKOG-0235FCZZ) to the shaft 
section.
4
Separation plate
-
Clean when a foreign material is 
attached.
5
Lower separation pawl
-
Clean when a foreign material is 
attached.
6
Meandering suppress 
collar
-
7
Heating roller
-
8
Fusing roller bearing
-
9
Heating roller bearing
-
10
Pressure roller bearing
-
11
Heat-insulating bush
-
12
Pressure roller gear
-
13
24T Gear
-
Including the pressure roller kit.
14
Main thermistor
X
X
15
Sub thermistor 1
X
X
16
Sub thermistor 2
X
X
Replace or clean with alcohol as 
needed.
17
Lower thermistor 1
X
X
18
Lower thermistor 2
X
X
Replace or clean with alcohol as 
needed.
19
Transport roller 18
X
O
20
Gears
Apply to the specified position.
21
Web roller
-
22
Web guide shaft
-
23
Web pressure roller
-
24
Web pressure roller 
bearing
-
25
Fusing paper exit 
detector
-
X
26
Fusing front paper pass 
detector
-
X
For the reflection-type sensor, the 
other side must be also cleaned.
27
Sensors
X
X
For the reflection-type sensor, the 
other side must be also cleaned.
-
Paper guides
O
O
-
Fusing unit
-
Replace at 300K when replacing the 
unit.
-
Web cleaning motor
-
Replace at 300K when replacing the 
unit.(Including the unit exchange)
Paper 
exit/
reverse 
section
Right door 
unit
1
Transport roller 19
X
O
X
2
Transport roller 20
X
O
X
3
Transport roller 21
X
O
X
4
Transport roller 22
X
O
X
5
Paper exit roller 2
X
O
X
-
Follower roller
X
O
X
6
Discharge brush
X
X
7
Sensors
X
X
For the reflection-type sensor, the 
other side must be also cleaned.
-
ADU reverse gate
X
O
X
-
Transport paper guides
O
O
Paper exit 
unit
8
Paper exit roller 1
X
O
X
-
Follower roller
X
O
X
9
Discharge brush
X
X
10
Sensors
X
X
For the reflection-type sensor, the 
other side must be also cleaned.
-
Transport paper guides
O
O
Section
Unit
No.
Maintenance parts
When 
calling
200K
300K
400K
600K
2000K
3000K
Remark
MX-7500N  MAINTENANCE  9 – 9
Drive 
section
Tandem 
paper feed 
drive unit
1
Gears
-
X
Apply to the specified position as 
needed when checking.
2
Belts
-
X
Vertical transport clutch 
upper (PTRC2)
-
X
Paper feed clutch 
(T1PUC)
-
X
Paper feed clutch 
(T2PUC)
-
X
Paper transport clutch 
(TTRC)
-
X
Paper feed 
drive unit
3
Gears
-
X
Apply to the specified position as 
needed when checking.
4
Belts
-
X
Paper feed clutch 
(C3PUC)
-
X
Paper feed clutch 
(C4PUC)
-
X
Vertical transport clutch 
lower (PTRC1)
-
X
Transport 
drive unit
5
Gears
-
X
Apply to the specified position as 
needed when checking.
6
Belts
-
X
Paper feed clutch 
(MPUC)
-
X
Main drive 
unit (BK)
7
Gears
-
X
Apply to the specified position as 
needed when checking.
8
Shaft earth sections
-
X
Apply to the specified position as 
needed when checking.
9
Belts
-
X
10
Sensors
-
X
For the reflection-type sensor, the 
other side must be also cleaned.
DV clutch
-
X
Main drive 
unit (CL)
11
Gears
-
X
Apply to the specified position as 
needed when checking.
12
Shaft earth sections
-
X
Apply to the specified position as 
needed when checking.
13
Sensors
-
X
For the reflection-type sensor, the 
other side must be also cleaned.
DV clutch
-
X
Other
14
Fusing motor
-
X
Replace at the specified number of 
rotations: about 2,300K.
Filter section
1
Deodorant filter
X
2
Toner filter
X
3
Ozone filter
X
Section
Unit
No.
Maintenance parts
When 
calling
200K
300K
400K
600K
2000K
3000K
Remark
MX-7500N  MAINTENANCE  9 – 10
Memo:
Note for cleaning the image registration/density sensor
When in maintenance or in case of a service call, refer to  "Criteria for necessity of cleaning" below to judge the necessity of cleaning the image
registration/density sensor. If it is judged that cleaning is necessary, then perform cleaning.
Criteria for necessity of cleaning
-  The SIM44-2 “D” - “F”, “pcs_*_LED ADJ value” is increased by aging or dirt of the image density sensor.
-  When the image density is decreased, execute Sim44-2. 
Then execute SIM46-74”Copy color balance adjustment (Auto adjustment)/Printer color balance adjustment””.
Greasing
Greasing is not always required for every maintenance. In the following cases, check and grease.
-  When there are some noises.
-  When a lot of jams occur frequently. (Check the jam history.)
Cleaning of sensors and detectors in the paper feed/transport system
Cleaning of sensors and detectors in the paper feed/transport system is not always required for every maintenance. In the following cases,
check and clean.
-  When a trouble or a jam occurs due to a sensor or a detector. (Check the jam history.)
Torque limiter check and replacement
Torque limiter check and replacement is not always required for every maintenance. In the following cases, check and replace.
-  When there are some noises.
-  When a lot of jams occur frequently. (Check the jam history.)
Alcohol for cleaning
Be sure to use ethanol for cleaning.
Cleaning of the primary transfer mode detector (CL/BK)
-  When replacing the OPC drum, remove the primary transfer unit and the developing unit, and clean them.
-  Blow air to the light emitting section and light receiving section to remove the attached toner.
-  Blow air also when the sensor is wiped and cleaned with waste cloth.
MX-7500N  MAINTENANCE  9 – 11
A. DSPF section
X: Check (Clean, replace, or adjust according to necessity.)
O: Clean
: Replace
: Adjust     
 : Lubricate
Unit
No.
Maintenance parts
When 
calling
Every 
200K
Every 
300K
Every 
400K
Every 
600K
Every 
1500K
Remark
Document feed 
tray unit
1
Sensors
X
X
For the reflection-type sensor, the other side 
must be also cleaned.
Document feed 
unit
2
Document pickup roller
O
O
Replace according to each paper feed counter 
value: Replace at 100K or after one-year use.
3
Paper feed roller
O
O
4
Sensors
X
X
For the reflection-type sensor, the other side 
must be also cleaned.
Lamp unit
5
Second scan section, 
scanning glass
O
O
6
Reflector
O
O
7
Scanner lamp
O
O
Air-blow the LED section.
Optical unit
8
Mirror
O
O
9
Lens
O
O
10
CCD
O
O
DSPF unit
11
Separation roller
O
O
Replace according to each paper feed counter 
value: Replace at 100K or after one-year use.
12
Torque limiter
X
X
Replace according to each paper feed counter 
value: 800K
13
No. 1 registration roller
O
O
14
Transport roller 1
O
O
15
No. 2 registration roller
O
O
16
Transport roller 2
O
O
17
Transport roller 3
O
O
18
Paper exit roller
O
O
19
No. 1 scanning plate
O
O
20
No. 2 scanning section 
white reference glass
O
O
21
Discharge brush
X
X
Replacement reference: 
When the brush bundle is remarkably deformed.
22
OC mat
O
O
23
Sensors
X
X
For the reflection-type sensor, the other side 
must be also cleaned.
Drive unit
24
Gears
X
X
Apply to the specified position as needed when 
checking. (UKOG-0299FCZZ)
25
Belts
-
X
Transport drive unit
26
Belts
-
X
Page of 32
Display

Click on the first or last page to see other MX-6500N / MX-7500N (serv.man23) service manuals if exist.