The documents don't auto feed to scan on hp 9025
Here is a response from hp support community to this problem,
hhttps://h30434.www3.hp.com/t5/Scanning-Faxing-and-Copying/Scanning-Doc-Feeder-not-working/td-p/5738155
hope it helps
SOURCE: HP LaserJet 2840 Scanner problem
Yes, but I don't see any actual paper jams. I have a Vista O/S and I've been reading that that might be the problem; the 2840 scanner driver is not compatible with the Vista O/S and HP hasn't produced a solution yet. I appreciate your efforts, thanks.
SOURCE: jamming of documents in autmatic feed for scan mode
One way to unjam that would be to take a stiffer plastic or manila folder and insert it slowly into the document feeder and the slowly push it through the feeder until you dislodge the jammed document out of the bottom of the feeder.
That is a common practice in removing jams in the feeder.
SOURCE: Blank Scan from HP Scanjet 5590 Flatbed Auto Feed
Scanning is possible in 'Text' mode and 'Picture' Mode. In text mode, which is simple 'Black & White", this can happen, particulalrly if the text is in color. Either you increase the contrast settings or scan the document in Grey/color and convert it to B&W using the software. By this you need not check if there is output!. ( I am assuming that otherwise the scanner is performing okay). File size in B&W is very small as compared to Grey/color.
S. Mohan
SOURCE: Problem with scanning both from the auto feeder and from scanner glass
this is what HP has to say
This document applies to all HP product models.
Issue
When the product is turned on or in the middle of an operation, an
unexpected noise occurs, such as clicking, thumping, or grinding.
Blinking lights and error codes might accompany the noise.
NOTE: Noises can be caused by a number of things.
This document focuses on isolating, identifying, and resolving known
causes of product noises.
Solution
Noises are subjective and can be difficult to describe. Some noises are
normal to the operation of the product and might include the following:
Abnormal noises are a symptom of a problem. The most accurate way to
determine the origin of a noise is to isolate where it comes from and
when it occurs. Use the following steps to try to isolate the noise
issue.
NOTE:
Error codes might indicate the source of the noise. Make a note of any error code or blinking lights that appear.
Step one: Check for loose or broken parts
Step three: Check connection with computer Turn off the computer
to determine if the computer is the source of the noise. If the noise
persists, proceed to Step four. If the noise stops when the computer is
turned off, try to isolate any issues with connectivity:
Step four: Check for a paper jam
Paper jams can prevent the internal components of the product from moving, which can create unusual noises.
NOTE:
Remove any paper jam carefully as it is possible to damage the product when removing a jam from the front of the product.
If the product is plugged into an uninterruptible power supply, that source might make a beeping or whistling noise.
Step eight: Service the product
If you have completed all the steps listed above and are still experiencing a problem, service the product.
Comments by scrodamoon in premium
SOURCE: Brother MFC 8440 Scanner has a line
Whoaaaaaaaaaaa!!!!!!!!!!!!!!!!!!!!!!!!!! No need to da all that. Lift up the Doc feeder and look at the SMALL strip of glass, you will see a dot or something on it, clean w/alcohol. Voila taken care of. the dot ( pen mark, white out, etc...) makes a line because the document is Moving and that dot now looks like a line to the copier. :)
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