Hello, my HP C4280 all in one printer will print and copy, but when I try to scan it says in the little window on the printer "USB not connected". I do not understand how this is possible when it will print documents. Please help, thanks in advance.
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Have/had the same problem: Getting "paper size mismatch" on the C4280 status
screen, after we got a paper jam. Every time we hit OK and put in paper,
Message about "Now printing Alignment page", it feeds through quickly, with
nothing printed on the page and reverts back to Paper size mismatch. Finally
got rid of the error, not sure how, but now when I try to copy anything, we only
get the lower right postion of the document that I'm trying to copy. Printing
from the PC seems ok. Powered off and back on, and it is back to P"now
printing alignment page, quick feed through and "paper size mismatch" error.
When copying directly from the glass panel,it will only print a quarter of
the page -however it prints and coorectly if we print directly from the
The problem is the paper size sensors. Remove the plastic access panel that
is for access to the rollers in the back and has 4 rollers on it. There are two
papaer sensors attached to the printer circuit board (PCB). The control arm for
the sensor is a small plastic piece that extends slightly into the paper path
above the PCB. The plastic can be broken when you are removing a paper jam. I
stuck a small piece of a match stick in the sensor to keep it open (as though a
wider piece of paper was passing throught the printer). I can't switch to
smaller card stock, etc, but who cares, it works.
The copying problem is caused because the C4280 will not scan correctly until
after it does the alignment phase.
First, do you have the full-featured version of the software installed (installed on the computer before connecting the printer to the computer)? Second, do you have the all-in-one connected to a print server or USB hub? These can block the two-way communication needed for scanning. Try a direct connection. Also try a new USB cable and a different USB port (if you have any signal loss issues, it matters more with the scanner).
first of all try to scan something from your computer if scan is fine then
open solution center and then go to solution center and click on settings
after that click on printer tool box click clean print heads/cartridges
after cleaning align then now try to copy
if still you have a problem then
Perform a reset of the HP All-in-One
Press the On button and turn off the HP All-in-One.
Unplug the power cord from the wall outlet.
Unplug the power cord from the back of the HP All-in-One.
Wait for 20 seconds.
Plug the power cord back into the HP All-in-One.
Plug the power cord into the wall outlet.
Turn on the HP All-in-One by pressing the On button.
Install software that is twain compliant.
Maybe the HP bundle that came with the printer.
Also Paint Shop Pro,Adobe Acrobat.Photoshop etc.
Use the usb cable after the install of the HP drivers then you may change the default location of where scans are saved.
I had this same problem and it is fixable, but not the way you would probably like, though you can still scan with the printer. You just have to open the Paint program and click from scanner or camera, and then choose your printer and click scan preview, and then scan, it works just fine but its a little time consuming.
sir try uninstalling the whole old printer program on the add/remove icon on the control panel... then reinstall the software again... this is because in the process of installing the printer the software is scanning the installed printer... is not because you have the same unit as before they are one same unit... i mean they still differ on parts model and serial numbers so the OS still need to recognize the new printer installed...