2L6/2N6/2N5/2N4
1-4-33
(2) Items and corrective actions relating to the device that will cause paper jam
Static Check if the location is
susceptible to build static
discharge at the conveying guide
during printing.
Re-assemble and re-wire the static discharge sheet at
the ejection unit or the metal guide at the tranfer unit so
that they are properly grounded.
Jam types Check description Corrective measures
No-paper-feed jam or
the leading edge of
paper is curled back at
the position of the
roller
(J0501,J0502,
J0503,J0504, J0505,
J0506, J0507, J0509,
J0523, J0524, J0525,
J0526, J0527, J0545)
1. Check if the jammed
paper or the printed
paper has a tear
caused by the roller at
its leading edge.
Replace the primary feed roller.(Service life of rubber
roller is 150k.)
Increase the spring pressure to pinch the separation
rollers if the component is undue to its expected
life.Replace the spring.
2. Check abrasion and
paper dusts on the feed
roller and forward
rollers.
Clean the feed roller and the forward roller.Or, if not
amended, replace.
3. Perform U032 to check
the forward roller and
feed roller are rotating.
If disconnected or or stained, replace the primary
feed clutch.
4. Check if a primary feed
roller of a wrong
material of rubber is
installed.
Distinguished by color: White x 2, black x 1
Check that the feed rollers are installed at (1) Feed
Roller (Collar is white.), (2) Retard roller (black), and
(3) Pickup Roller (white). 45-ppm/55-ppm devices
* : If not, install then at the correct positions.
5. Check that the
conveying force of the
pickup roller is
sufficient.
Increase the conveying force during paper pickup by
increasing the spring load of the pickup roller.
6. Check the film is
sufficiently protruded in
front of approching the
feed roller and the
nip.(Too wide a gap
against the feed roller.)
Amount of protrusion of film in approaching (Gap: 0.2
- 0.5 mm) must be maintained after adjustment.
Check items Check description Corrective measures
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