Olivetti d-color MF651, Service Manual, Page: 720 / 1053

17. JAM DISPLAY Field Service Ver. 2.0 Jul. 2009
660
TROUBLESHOOTING
17-09 Tray 3/4
horizontal
transport
section • The tray 3 paper feed sensor (PS21) is not
unblocked even after the lapse of a given
period of time after the paper has blocked
the PS21.
Tray 3/4 horizontal
transport unit P.682
17-30 • The horizontal transport sensor (PS29) is
not blocked even after the lapse of a given
period of time after the paper has blocked
the tray 3 paper feed sensor (PS21).
17-31 • The intermediate roller sensor (PS28) is
not unblocked even after the lapse of a
given period of time after the paper has
blocked the horizontal transport sensor
(PS29).
- • Horizontal transport sensor (PS29) is
blocked when the main power switch is
turned ON, a door or cover is opened and
closed, or a misfeed or malfunction is
reset.
17-10 Tray 3/4
intermediate
transport roller
section • A sheet of paper does not block the tray4
paper feed sensor (PS26) after a prede-
termined period of time has elapsed since
the sheet unblocks the PS26.
Lower right door,
Tray 3/4 horizontal
transport unit P.682
17-11 • A sheet of paper does not unblock the hor-
izontal transport sensor (PS29) after a
predetermined period of time has elapsed
since the sheet blocks the PS29.
17-40 • A sheet of paper does not turn ON the
intermediate roller sensor (PS28) after a
predetermined period of time has elapsed
since the sheet unblocks the tray4 paper
feed sensor (PS26).
17-41 • A sheet of paper does not turn ON the
tray2 vertical transport sensor (PS12)
after a predetermined period of time has
elapsed since the sheet turns ON the
intermediate roller sensor (PS28).
- • The intermediate roller sensor (PS28) is
turned ON when the main power switch is
turned ON, a door or cover is opened and
closed, or a misfeed or malfunction is
reset.
JAM
code
JAM type Detection timing
Misfeed processing
location
Ref.
page
Service Manual Y110571-1