172
UF-5500 / 4500
2. Check the paper exit sensor.......... “PAPER JAMMED”
3. Check the read position sensor .......... “CHECK DOCUMENT”
4. Check the registration & manual paper sensor .......... “PAPER JAMMED”
5. Check the print timing sensor .......... “PAPER JAMMED”
6. Check the document sensor
NG
OK
Check the voltage at pin AD20 of
IC300 (Main Board).
The photo sensor transmitted: 0V
(Recording paper exists.)
The photo sensor interrupted: 3.3V
(No recording paper.)
Check the connection of
signal line and check the
soldering at R510, R506,
C508.
(Main Board).
Check the voltage at pin AD20
of IC300 again.
IC300 NG
NG
NG
Check the connection of
signal line and check the
soldering at R54 (Fuser
Board).
Check the voltage at pin
AD20of IC300 again.
Replace PS50
(Fuser Board)
NG
OK
NG
NG
IC300 NG
Replace PS53 (ADF Board)
Check the voltage at pin AD22 of
IC300 (Main Board).
The sensor lever pressed: 3.3V
(A document is on read position.)
The sensor lever released: 0V
(A document is out of read position.)
Check the connection of signal
line and check the soldering at
R703, R706, C704 (Main Board).
Check the voltage at pin AD22 of
IC300.
Check the connection of signal
line and check the soldering at
R52, J57 (ADF Board).
Check the voltage at pin AD22 of
IC300 again.
NG
OK
IC300 NG
NG
NG
Replace PS51 (Regist & PTOP Board)
Check the connection of signal
line and check the soldering at
R51 (Regist & Ptop Board).
Check the voltage at pin AF20
of IC300 again.
Check the connection of signal
line and check the soldering at
R582, R583, C565 (Main Board).
Check the voltage at pin AF20 of
IC300.
Check the voltage at pin AF20 of
IC300 (Main Board).
The sensor lever pressed: 0V
(A paper exists on sensor position.)
The sensor lever released: 3.3V
(A paper does not exist.)
NG
OK
NG
NG
IC300 NG
Replace PS52 (Regist & PTOP Board)
Check the connection of signal line and
check the soldering at R50 (Regist &
PTOP Board).
Check the voltage at pin W26 of IC300
again.
Check the voltage at pin W26 of
IC300 (Main Board).
The sensor lever pressed: 0V
(A paper is on printing position.)
The sensor lever released: 3.3V
(A paper does not exist.)
Check the connection of signal
line and check the soldering at
R587, R585, C569 (Main Board).
Check the voltage at pin W26 of
IC300.
NG
OK
NG
NG
IC300 NG
Replace PS54 (ADF Board)
Check the connection of signal
line and check the soldering at
R53 (ADF Board).
Check the voltage at pin AF23
of IC300 again.
Check the voltage at pin AF23 of IC300
(Main Board).
The sensor lever pressed: 3.3V
(A document is set on the ADF.)
The sensor lever released: 0V
(No documents.)
Check the connection of signal
line and check the soldering at
R705, R704, C701 (Main Board).
Check the voltage at pin AF23 of
IC300.
Содержание UF-4500
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Страница 309: ...309 UF 5500 4500 A1 A3 A4 A6 A7 A8 A9 A10 P1 P2 P3 P4 P5 P6 P7 P8 P7 Drum Cartridge Toner Cartridge P9 A11 ...
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Страница 365: ...365 UF 5500 4500 Published in Japan ...