• When the media size changes in the paper tray, first load a part of a stack, adjust the rulers,
and then load the other remaining sheets.
• Ensure the paper tray parts do not touch the media during loading.
• Remove media from the paper modules when the printer is shut down for more than two days.
• Rewrap remaining media using the original orientation and package materials or use plastic
closeable boxes.
More instructions
The following instructions can be followed when sentry rejections still occur.
Instructions First pass re‐
jections
Second pass
rejections
When you notice that the ejected sheets are curled, do the fol-
lowing. Take the media stack, turn it over, and load the media
face-down.
Yes Yes
Remove the media stack and put a new stack in the paper tray. Yes
When you cut media in-house, cut media according to the
guidelines. (
Cut media according to the guidelines
on
page 403)
Yes
Assign and load the correct job media to the paper tray. (
As-
sign media from media catalog to paper trays
on page 89)
Yes
Increase small margins or print on larger media. A margin be-
tween 10 and 20 mm is recommended when you notice many
second pass sentry rejections. (
Change the layout of the job
on
page 198)
Yes
When the relative humidity of the packaging deviates from the
relative humidity of the storage room or paper module paper
malformations can occur. The default relative humidity of the
paper module can be set in the Settings Editor. (
Proper packag-
ing
on page 430,
Change relative humidity in paper modules
on page 407)
Yes Yes
Use other media, for example use thicker media when the used
media are thin.
Yes Yes
Use a media print mode that uses a larger print gap parameter.
(
Define a media print mode
on page 277)
Yes
When the job uses cover media or other critical media, print
these pages in a separate job. Thereafter, load the printed
sheets, and add these to the job as insert sheets.
Yes
Adjust the CMYK tone curves of a media print mode to reduce
the ink amounts. (
Edit the CMYK tone curves
on page 404)
Yes
First print the sides that have the lowest ink coverage, which
means these are printed during the first pass. (
Reverse print
sides
on page 404)
Yes
Cut media according to the guidelines
When paper is cut in-house into the required sized, you need to be extra careful to avoid sentry
rejections.
Many sheets arrive in the sentry tray
Chapter 14 - Problem Solving
403
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