When printing a document, I have a white vertical line going down the center of the paper. It doesn't interrupt the black print - just looks bad having that vertical line on the paper. How can I fix that?
SOURCE: HP 3050 Black Line
I was getting a verticle black line and I had to clean the glass, the long white bar above the glass, and the white and black rollers before my problem was solved.
SOURCE: ihave a hp officejet/hp officejet
I think there is a removable panel in the back that has a large knob to open.
SOURCE: Black vertical lines on faxes sent using auto document feeder
If you lift up the lid on your scanning device you will notice a glass strip about 1 inch thick and then the large area of glass used for flatbed scanning. The 1 inch strip is used for ADF scanning. Because your papper is moving across the glass strip, any dot, smudge or scratch will affect your scanning and cause verticial lines down the page. Sometimes the dot is not visible to the eye. Get some glass cleaner that has alcohol in it and thoroughly clean the glass strip and it should solve your problem. If it turns out to be a scratch on the glass then cleaning won't help.
SOURCE: I have an HP Officejet Pro 7580. When printing in
Press "set up" button until number 6
Number 6 is "tools"
press OK
press forward arrow (to right of ok button)
No.2 is clean printhead
No.3 is align printer
No.4 is calibrate line feed
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