
115
4.4.14. Poor Printed Copy Quality
START
Is the Test Pattern printout
in Service Mode 3 normal?
1. Replace the SC PCB.
2. Replace the Laser Unit (LSU).
3. Replace the Power Supply Unit.
4. Replace the Toner Cartridge .
END
Perform a receiving test
with the reference fax unit.
Is the printed copy correct?
Yes
No
Make a local copy.
No
Yes
Check the Transmission Block
(CN30 on the CCD PCB and CN7 on
the SC PCB.
Is the received copy correct?
1. Check the CN18 on the SC PCB.
2. Check the CN28 and 29 on the
MJR PCB.
3. Check the Telephone Line Cable.
4. Replace the SC PCB.
Yes
No
Is a poor copy printed only
when receiving from a
specific transmitter?
Yes
No
Telephone line quality is poor.
(Refer to 4.6.)
The transmitting machine
may be defective.
Содержание Facsimile UF-590
Страница 14: ...14 4 Driver No TWAIN 5 2 Sided Scanning No Items Description Remarks UF 580 UF 780 UF 590 UF 790 ...
Страница 17: ...17 1 4 Control Panel For USA and Canada UF 790 UF 780 790 780 ...
Страница 18: ...18 For Other Destinations UF 590 UF 580 ...
Страница 27: ...27 10 Remove 2 P6A Bushings 316 11 Remove the Eject Roller 303 10 11 ...
Страница 33: ...33 11 Remove 2 Screws 4N 12 Remove the Paper Feed Rollers 518 11 12 ...
Страница 238: ...238 807 807 808 805 804 802 801 811 810 810 809 803 806 K A C D E F G H I J B 8 1 3 4 5 6 7 2 2 2 Fig 8 Cassette ...
Страница 290: ...290 10 9 CCD PC Board 4 3 2 1 D C B A 1 2 3 4 Drawing Name CCD PC Board 1 1 Model UF 580 590 780 790 5V 5V ...
Страница 293: ...293 10 12 Power Supply Unit 4 3 2 1 D C B A 1 2 3 4 Drawing Name HVPS 1 4 Model UF 580 590 780 790 ...
Страница 294: ...294 4 3 2 1 D C B A 1 2 3 4 Drawing Name HVPS 2 4 Model UF 580 590 780 790 ...
Страница 295: ...295 4 3 2 1 D C B A 1 2 3 4 Drawing Name HVPS 3 4 Model UF 580 590 780 790 ...
Страница 296: ...296 4 3 2 1 D C B A 1 2 3 4 Drawing Name HVPS 4 4 Model UF 580 590 780 790 ...
Страница 297: ...297 4 3 2 1 D C B A 1 2 3 4 Drawing Name LVPS 1 1 Model UF 580 590 780 790 ...
Страница 298: ...DZZSM00158 ...