I have problem with my hp laser jet M1136 printer (ce849a) when ever i take xerox vertically some place not copy blank space is came..

SOURCE: HP 3310 will NOT scan

This issue occurs when the digital imaging monitor is not running or the software is not installed properly.

This issue has nothing to do with the cartridges.

If the printer in connected in wireless, once check the communication between the computer and the printer and then disable the firewall and antivirus and try to scan again from the all-in-one. Also try to scan even from the HP solution center.

If the printer is connected via USB then try to scan from the HP solution center and then check the result, if the issue persists check whether the digital imaging monitor is running or not, then try to scan from scanners and camera wizard.

SOURCE: Lines print on copies when put through the scanner. But do not appear on copies when placed on the glass

You may also want to check if the ADF is dirty or contaminated with dust or hair. Here's a link with some information about how to clean the scanner:

http://support.lexmark.com:80/perl/support/support.cgi?relevance=1&ccs=229:1:0:111:0:0&mode=DOCS&doctype=KB&term=Scan%20Copy%20Quality&docid=ENUS32544

SOURCE: Xerox WorkCentre 4150, 3 vertical white lines in all feeder scans

the problem is in the scanner, open it up and see if you can find any smudges, and clean any obstruction, any ink, liquid eraser residuals, can cause this part to appear as lines on your copied faxed image.
dont concentrate on the printer this is a scanner problem

SOURCE: Black vertical line (1 inch wide) appears while scanning/copying

For this kind of problem you need to call the tech support because the printer is already messed up and it is in need of replacement

Hope this help

Byron

SOURCE: HP Laser Jet 3030 not work

remove scanner glass and use compressed air to blow out the scanner