8. Troubles Related to Paper Feeding and Delivery (Main)
Double Feeding
J099 Appears
Cause:
• The paper size is not specified correctly.
• The paper tray's side fences or end fence are not set correctly.
Solution:
• Specify the paper size correctly.
• Correctly position the side fences and end fence of the paper feed tray.
Double-feeding is erroneously detected or cannot be detected
Cause/Occurrence conditions:
• Thin paper with a thickness of Paper Weight 0 (40 to 52.2 gsm) or Paper Weight 1 (52.3 to 63.0
gsm) used.
• Thin paper with a paper width below 297 mm (11.7 inches) fed.
• The double-feed sensor is soiled with paper dust or other particles.
Solution:
Set the paper width to 297 mm (11.7 inches) or above.
If the paper thickness is Paper Weight 0 and the paper width is below 297 mm (11.7 inches), there
is a possibility of double-feeding, so set the paper width to 297 mm (11.7 inches) or above before
feeding the paper.
Changing the Double-Feed setting
In [Detailed settings] for custom paper, set 1331-03 [Detect JAM099] to "Off".
• If the Double-Feed setting is set to Off, double-feeding is no longer detected and this may
cause degradation in the image quality and erroneous mixed delivery of white paper.
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