Ricoh J001 Service Manual page 207

8.1.5 PAPER MISFEED: OUTPUT TRAY, GUIDE PLATE
SERVICE CENTER CALL RESPONSE
Transport jam occurred. (Tray 1)
When the paper was feed from Tray 1, the
registration sensor detected the leading edge, but
the trailing edge sensor did not detect the trailing
edge because the stopped in the paper path.
Ask the operator to try the following procedures to
remove and prevent paper transport jams when
feeding from Tray 1. Also, check inside the printer
for paper. If you find paper inside the printer,
remove it, and then press the [Paper Feed] key.
(1) Check for paper inside the printer. Paper
inside the printer can cause double feeding.
Switching to a different type of paper and
changes in the environment can also cause
double-feeding. Do not use continuous form
feed paper; if you use such paper separate
each sheet before loading. The printer is
guaranteed for fewer than 1 jam per 1,000
sheets when using approved paper.
(2) Check the type and condition of the paper,
then do the following procedures.
2-1 Check the paper to make sure that it is not
longer than 357 mm (14 in.); use only paper
that is shorter than 356 mm (14 in.).
2-2 Check to see if paper printed on one side is
being used. Paper printed on one side has a
tendency to double-feed. If the double-feeding
persists, replace with other paper.
2-3 Check the paper and if it is coated, make sure
it meets specifications for coated paper. Use
only coated paper that is recommended for
use with this printer.
2-4 Curl can develop if paper remains unused and
loaded in the paper cassette for a long period.
Remove the curled or wrinkled paper.
(3) ST Descriptions
3-1 Operation impaired by other causes.
SM
CÓPIA NÃO CONTROLADA
PROBABLE CAUSE
1. Paper unexpectedly started double-feeding
more than 1/1000.
2. Paper that does not meet specifications was
used.
3. Damage.
Unexpected double-feeding (due to static electricity,
friction between front/back of sheets), occurs
frequently when adding sheets.
Specifications
Ink between sheets of used paper causes friction
and interferes with paper feed and transport.
Some types of coated paper create more friction
between sheets than others.
Changes in the room temperature can affect paper
and can cause more friction between sheets and
interfere with separation.
1. Friction separation pad is dirty.
2. Paper feed clutch operating incorrectly.
3. Harness disconnected, damaged.
4. Sensor damage (trailing edge sensor).
5. Control board malfunction.
6. DC relay board abnormal.
7 Drive gears damaged.
CÓPIA NÃO CONTROLADA
OPERATOR ACTION
1. Do not continue to use unapproved paper.
2. Use only paper that meets specifications.
Do not continue to use unapproved paper.
Use only paper that meets specifications
(including restrictions).
Use only paper in the range 216 x 356 mm (8.5 x
14 in.)
Switch to other paper.
Switch to recommended paper.
Remove the curled or wrinkled paper.
8-7
SERVICE TECHNICIAN (ST) and/or
NATIONAL RECLAMATION CENTER
(NRC) ACTION
3. Repair (ST) or replace (NRC).
1. Clean the friction separation pad
(ST).
2. Replace the paper feed clutch
(NRC).
3. Check harness, replace (NRC).
4. Replace trailing edge sensor (ST),
replace the registration sensor
J001/J003