DOWNLOAD Panasonic UF-590 / UF-790 Service Manual ↓ Size: 15 MB | Pages: 127 in PDF or view online for FREE

Model
UF-590 UF-790
Pages
127
Size
15 MB
Type
PDF
Document
Service Manual
Brand
Device
Fax / LASER
File
uf-590-uf-790.pdf
Date
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Panasonic UF-590 / UF-790 Service Manual ▷ View online

101
4.4.2.
Blank Copy
START
END
Check the Scanner mechanism.
Are there any foreign particles 
or stains on the BTR?
Is the Toner Cartridge
operational?
Is the Power Supply Unit 
normal?
Yes
Yes
Yes
No
No
No
Replace the Toner Cartridge .
Yes
No
1. Clean the BTR with a soft, 
     dry cloth.
2. Replace the BTR. 
1. Check all connectors and
     voltages on the Power Supply  
     Unit.
2. Check the Connector and 
     voltage on the Power 
     Supply Unit.
3. Replace the Power Supply Unit.
Are there any foreign particles 
or stains blocking the Laser 
Beam path?
Yes
No
Is the SC PCB normal?
1. Remove the particles from the 
     laser beam path or clean the stains.
2. Replace the Laser Unit (LSU).
1. Check all connectors and 
voltages on the SC PCB.
2. Replace the SC PCB.
Yes
No
Paper Travel
Is the printout in  Service 
Mode 3 normal?
102
4.4.3.
Vertical White Lines
START
END
Replace the recording paper.
Yes
No
Replace the Toner Cartridge .
Are there any foreign particles
or  stains blocking the Laser 
Beam path?
No
1. Clean the BTR with a soft, dry cloth.
2. Replace the BTR.
Yes
No
Clean or replace the rollers.
No
Yes
Check the Scanner mechanism.
No
Yes
Yes
Is the recording paper damp?
Is the Toner Cartridge 
operational?
1. Remove the particles from 
     the laser beam path or clean the stains.
2. Replace the Laser Unit (LSU).
Are there any foreign particles 
or stains on the BTR?
No
Yes
Are the Fuser and Pressure
Roller surfaces clean?
Paper Travel
P
Is the printout in  Service 
Mode 3 normal?
103
4.4.4.
Ghost Images
START
END
No
Yes
Check the Scanner mechanism.
Is the Toner Cartridge 
operational?
No
Yes
Are the Fuser and Pressure 
Roller surfaces clean?
No
Yes
Is the recording paper damp?
Are there any foreign particles 
or stains on the BTR?
No
Yes
Yes
No
Replace the recording paper.
Replace the Toner Cartridge.
1. Clean the BTR with a soft, 
     dry cloth.
2. Replace the BTR.
Clean or replace the rollers.
Paper Travel
A
A
A A A
Is the printout in Service 
Mode 3 normal?
104
4.4.5.
Vertical Dark Lines
START
No
Yes
Check the Scanner mechanism.
Is the Toner Cartridge
operational?
No
Yes
Are there any foreign particles 
or stains on the BTR?
Yes
No
Replace the Toner Cartridge.
1. Clean the BTR with a soft, dry 
     cloth.
2. Replace the BTR.
Is the Laser Unit (LSU)
normal?
No
Yes
Replace the Laser Unit (LSU).
END
No
Yes
Clean or replace the rollers.
Paper Travel
P
Are the Fuser and Pressure 
Roller surfaces clean?
Is the printout in Service 
Mode 3 normal?
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