Filter
Top Products
A-61579 February 2007 29
- The input stack contains folded pages or envelopes.
The ultrasonic multifeed detection system cannot distinguish between the two sides
of an envelope or folder and a true multifeed of single pages. If envelopes or folders
are being scanned, multifeed detection should be disabled or set to alarm only.
- The ultrasonic sensors are dirty.
The ultrasonic multifeed detection system may trigger a false multifeed alarm if paper
or dust accumulates in the sensors. The sensors should be cleaned during
maintenance.
¾Vertical lines
As was stated in the Maintenance section, “The most frequent image quality problems
that are reported with document feeding scanners are lines or streaks in the scanned
image and black image borders, which are almost always caused by dust on the imaging
components of the scanner.“ The i1800 Series Scanner was designed to minimize this
problem but it can still occur if the image path is obstructed.
¾Lines on the front images.
To correct this problem for the front side images, remove the upper imaging guide and
thoroughly clean it using a Staticide wipe. For best results, the wipes should be allowed
to dry out for a few seconds after removal from the packaging so they produce a clean
streak free guide. Remember to clean the front and the back side of the imaging guide.
After the imaging guide has been cleaned, it should be inspected for scratches. If the
imaging guide is scratched, it must be replaced. Replace the imaging guide carefully
without touching the glass areas.