DOWNLOAD Sharp MX-6500N / MX-7500N (serv.man18) Service Manual ↓ Size: 9.46 MB | Pages: 27 in PDF or view online for FREE

Model
MX-6500N MX-7500N (serv.man18)
Pages
27
Size
9.46 MB
Type
PDF
Document
Service Manual
Brand
Device
Copying Equipment / Section 4 External view and Internal Structure
File
mx-6500n-mx-7500n-sm18.pdf
Date

Sharp MX-6500N / MX-7500N (serv.man18) Service Manual ▷ View online

MX-7500N  EXTERNAL VIEW AND INTERNAL STRUCTURE  4 – 4
2. Internal structure
No.
Name
Function/Operation
1
Toner cartridges
These contain toner for printing. When the toner runs out in a cartridge, the cartridge of the color that 
ran out must be replaced.
2
Fusing unit
Heat is applied here to fuse the transferred image onto the paper.
3
Transfer belt
During full color printing, the toner images of each of the four colors on each of 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.
4
Right side cover
Open this cover to remove a paper misfeed.
5
Paper reversing section cover
This is used when 2-sided printing is performed. Open this cover to remove a paper misfeed.
6
Right side cover release lever
To remove a paper misfeed, pull and hold this lever up to open the right side cover.
7
Main power switch
This is used to power on the machine. When using the fax or Internet fax functions, keep this switch in 
the "on" position.
8
Waste toner box
This collects excess toner that remains after printing.
MX-7500N  EXTERNAL VIEW AND INTERNAL STRUCTURE  4 – 5
3. DSPF
A. Rollers
B. Sensors, detectors, and switches
No.
Name
Function/Operation
1
Document pickup roller (DSPF)
Picks up a document to feed it to the paper feed roller.
2
Paper feed roller (DSPF)
Feeds a document to the transport section.
3
Separation roller (DSPF)
Separates a document to prevent double-feeding.
4
No. 1 registration roller (Drive) (DSPF)
Provides deflection between the paper feed roller and this roller to correct the document skew.
5
No. 1 registration roller (Idle) (DSPF)
Applied a pressure to document and the registration roller, and provides transport power of the 
registration roller to document.
6
Transport roller 1 (Drive) (DSPF)
Transports document from No. 1 registration roller to No. 2 registration roller.
7
Transport roller 1 (Idle) (DSPF)
Apply a pressure to a document and the transport roller to provide the transport power of the 
transport roller to the document.
8
No. 2 registration roller (Drive) (DSPF)
Controls the transport timing of the document and adjusts the document scanning timing.
9
No. 2 registration roller (Idle) (DSPF)
Applied a pressure to document and the registration roller, and provides transport power of the 
registration roller to document.
10
Transport roller 2 (Drive) (DSPF)
Transports document from the No. 1 scan section to the No. 2 scan section.
11
Transport roller 2 (Idle) (DSPF)
Apply a pressure to a document and the transport roller to provide the transport power of the 
transport roller to the document.
12
Transport roller 3 (Drive) (DSPF)
Transports document from the transport roller 2 to the document exit roller.
13
Transport roller 3 (Idle) (DSPF)
Apply a pressure to a document and the transport roller to provide the transport power of the 
transport roller to the document.
14
Paper exit roller (Drive) (DSPF)
Discharges document.
15
Paper exit roller (Idle) (DSPF)
Apply a pressure to a document and the paper exit roller to provide the transport power of the 
paper exit roller to the document.
Signal name
Name
Type
Function/Operation
SCOV
Upper cover open/close detector (DSPF)
Light transmission
Detects open/close of the upper cover.
SLCOV
Lower cover open/close detector (DSPF)
Micro switch
Detects open/close of the lower cover.
SOCD
DSPF open/close detector (DSPF)
Light transmission
Detects open/close of the DSPF unit.
SPED1
Document upper limit detector (DSPF)
Light transmission
Detects the upper limit lift position of a document in the document feed 
tray.
SPED2
Document detector (DSPF)
Light transmission
Detects documents on the document feed tray.
SPLS1
Document length detector 1 (DSPF)
Light transmission
Detects the document length on the document feed tray. (For short sizes)
SPLS2
Document length detector 2 (DSPF)
Light transmission
Detects the document length on the document feed tray. (For long sizes)
SPOD
Document exit detector (DSPF)
Light transmission
Detects document exit of the document.
SPPD1
Document pass sensor 1 (DSPF)
Light transmission
Detects document pass in front of the No. 1 registration roller.
3
9
1
2
5
7
4
6
10
12
14
8
11
13
15
SPPD2
SPPD2
SPPD1
SPPD1
SCOV
SCOV
SPRDMD
SPRDMD STUD
STUD
SPPD3
SPPD3
SPPD4
SPPD4
SOCD
SOCD
SLCOV
SLCOV
SPPD5
SPPD5
SPOD
SPOD
SPED2
SPED2
STLD
STLD
SPED1
SPED1
SPWS
SPWS
SPLS1
SPLS1
SPLS2
SPLS2
MX-7500N  EXTERNAL VIEW AND INTERNAL STRUCTURE  4 – 6
C. Drive motors, clutches, PWB’s, and lamps
SPPD2
Document pass sensor 2 (DSPF)
Light transmission
Detects document pass in front of the transport roller 1.
SPPD3
Document pass sensor 3 (DSPF)
Light transmission
Detects document pass in front of the No. 2 registration roller.
SPPD4
Document pass sensor 4 (DSPF)
Light transmission
Detects document pass in front of the front-surface document scan.
SPPD5
Document pass sensor 5 (DSPF)
Light transmission
Detects document pass in front of the bask-surface document scan.
SPRDMD
Document size detector (DSPF)
Light transmission
Outputs the document size judgment signal when feeding random 
documents.
SPWS
Document width sensor (DSPF)
Resistance volume
Detects the document width on the document feed tray.
STLD
Document feed tray lower limit detector 
(DSPF)
Light transmission
Detects the lower limit position of the document feed tray.
STUD
Document feed tray upper limit detector 
(DSPF)
Light transmission
Detects the upper limit position of the document feed tray.
Signal name
Name
Type
Function/Operation
DSPF_COPY_
LAMP
Scanner lamp (DSPF)
LED
Radiates light onto a document for the CCD to scan the document 
image.
SLUM
Document feed tray lift motor (DSPF)
Stepping motor
Lifts the document feed tray.
SPFC
Paper feed clutch (DSPF)
Electromagnetic clutch
Turns ON/OFF the document feed section roller.
SPFFAN
DSPF cooling fan
DC brushless motor
Cools the motors and the clutches in the DSPF section.
SPFM
Transport motor (DSPF)
Stepping motor
Drives the transport roller.
SPOM
Document exit motor (DSPF)
Stepping motor
Drives the document exit roller.
SPUM
Document feed/transport motor (DSPF)
Stepping motor
Drives the paper feed roller and the transport roller.
SRRC
No. 2 registration roller clutch (DSPF)
Electromagnetic clutch
Turns ON/OFF the No. 2 registration roller.
STRC
Transport roller clutch (DSPF)
Electromagnetic clutch
Turns ON/OFF the transport roller 1.
STRRC
No. 1 registration roller clutch (DSPF)
Electromagnetic clutch
Turns ON/OFF the No. 1 registration roller.
No.
Name
Function/Operation
1
Control PWB (DSPF)
Controls the image data process and all the DSPF.
2
Driver PWB (DSPF)
Drives the motors and the clutches in the DSPF section.
3
CCD PWB (DSPF)
Scans document images and performs A/D conversion of the scanning signal.
Signal name
Name
Type
Function/Operation
SPOM
SPUM
SPUM
SPOM
SLUM
SLUM
SPFC
SPFC
STRRC
STRRC
STRC
STRC
SRRC
SRRC
DSPF COPY LUMP
DSPF_COPY_LAMP
SPFFAN
SPFFAN
SPFM
SPFM
1
2
3
MX-7500N  EXTERNAL VIEW AND INTERNAL STRUCTURE  4 – 7
4. Connectors
No.
Name
function/Operation
1
USB connector (A type)
Supports USB 2.0 (Hi-Speed). This is used to connect a USB device such as USB memory to the machine.
2
USB connector (B type)
Supports USB 2.0 (Hi-Speed). A computer can be connected to this connector to use the machine as a printer. For the 
USB cable, use a shielded cable.
3
LAN connector
Connect the LAN cable to this connector when the machine is used on a network. For the LAN cable, use a shielded type 
cable.
4
Service-only connector
This connector is for use only by service technicians. Connecting a cable to this connector may cause the machine to 
malfunction. Important note for service technicians: The cable connected to the service connector must be less than 118" 
(3 m) in length.
5
Power plug
Page of 27
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Sharp MX-6500N / MX-7500N (serv.man18) Service Manual ▷ Download

  • DOWNLOAD Sharp MX-6500N / MX-7500N (serv.man18) Service Manual ↓ Size: 9.46 MB | Pages: 27 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sharp MX-6500N / MX-7500N (serv.man18) in PDF for free, which will help you to disassemble, recover, fix and repair Sharp MX-6500N / MX-7500N (serv.man18) Copying Equipment. Information contained in Sharp MX-6500N / MX-7500N (serv.man18) 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.