Large Paper Not Stacked Properly

Cause:

When using large-size or coated paper and paper-to-paper friction is very high, a sheet may push against another or paper deflection may occur.

This is likely to occur if:

• B4 LEF, 8"x14" LEF, or larger size of paper is used.
• Paper that produces high paper-to-paper friction is used.
• The temperature or humidity is high.

Sheet bending

The leading edge of the delivered sheet bends upward and backward.

One sheet pushing out another

Because of high paper friction, the delivered sheet may get stuck and push out other sheets of paper.

Paper deflection

Because of high paper friction, the delivered sheet may arch up and become crimped.

Solution:

Depending on the cause of the problem, do one of the following:

Sheet bending

There is airflow in the room.

Minimize the airflow. For instance, turn the air conditioner off.

Sheets are curled upward.

• If the decurl unit is used

1. On the machine operation panel: Adjustment Settings for Skilled Operators > Paper Feed/ Output > Adjust Paper Curl > Set to "Adjust Concave Curl". (SP 1-906-001 to 007: De-curler Setting Tray <number> :Paper Path Selection)
2. To control the amount of curl correction, select "Weak" if the present setting is "Off" or "Strong".

• If the decurl unit is not used

Remove the paper stack and turn it upside down.

• Paper of Paper Weight 0 is being used.

If paper of Paper Weight 0 is being used, attach the Z-fold support tray for multi-folding unit.

For details about attaching the Z-fold support tray for multi-folding unit, see "Copy/ Document Server" supplied with the machine.

One sheet pushing out another or sheets becoming crimped

Sheets are curled downward.

• If the decurl unit is used

1. On the machine operation panel: Adjustment Settings for Skilled Operators > Paper Feed/ Output > Adjust Paper Curl > Set to "Adjust Convex Curl". (SP 1-906-001 to 007: De-curler Setting Tray <number> :Paper Path Selection)
2. To control the amount of curl correction, select "Weak" if the present setting is "Off" or "Strong".

• If the decurl unit is not used

1. Remove the paper stack and turn it upside down.

Paper of Paper Weight 0 is being used.

If paper of Paper Weight 0 is being used, attach the Z-fold support tray for multi-folding unit. For details about attaching the Z-fold support tray for multi-folding unit, see "Copy/ Document Server" supplied with the machine.