Jam Detection - Ricoh FAX4700L Service Manual

DETAILED SECTION DESCRIPTIONS
PRINTING

Jam Detection *

When the
standard
cassette is used
When any of the
paper feed
stations or the
bypass feed slot
is used.
When the upper
paper feed unit is
used.
When the lower
paper feed unit is
used.
When the bypass
feed slot is used
When the 100
sheet cassette is
used.
When the registration sensor is not turned on within
2.0 seconds of the paper jam timing signal.
When the paper feed-out sensor is not turned on
within 2.6 seconds after the paper feed motor starts to
feed paper for printing (not for prefeed).
When the registration sensor is not turned off within X
seconds after it turned on.
X seconds = (paper length / 67.546) + 3 seconds
(67.546 mm/ s : paper feed speed)
When the relay sensor in the upper paper feed unit is
not turned on within 2.0 seconds after the paper feed
clutch in the upper paper feed unit was switched on.
When the registration sensor in the fax machine is not
turned on within 2.0 seconds after the paper feed
motor started.
When the relay sensor in the lower paper feed unit is
not turned on within 2.0 seconds after the paper feed
clutch in the lower paper feed unit was switched on.
When the relay sensor in the upper paper feed unit is
not turned on within 2.0 seconds after the paper feed
motor in the lower paper feed unit started.
When the registration sensor is not turned on within 2
seconds after the paper feed motor starts rotating for
printing.
(This error is not generated during prefeed, to allow
the users to change their minds after putting paper in
this slot. When the bypass feed sensor is turned on,
the machine prefeeds the paper for up to 1 second
and stops feeding even if the registration sensor is not
turned on. If the registration sensor did not turn on
during prefeed, the machine checks for the above
error when printing starts.)
When the bypass feed sensor is not turned off within
11.9 seconds after it is turned on.
Using the same formula as above (error code 9-08), it
works out that individual sheets cannot be longer than
about 60 cm.
When the registration sensor is not turned on within
2.0 seconds of the paper feed clutch turning on.
Condition
2-36
December 21st, 1995
Error Code
9-07
9-08
9-08
9-50
9-51
9-52
9-53
9-80
9-81
9-82