When printing or faxing from the top tray of my HP OfficeJet 6310 all in one I get a line that runs down the entire page on the copy or fax to the recipient. I have tried cleaning the glass and rollers...
The key to solving this problem lies in what you observed. It only happens when you use the document feeder. As you noted, when you place it on the glass, there is no line.
When you use the feed, your machine does not pull the document onto the main glass to scan it with a moving bar. Instead, the bar parks itself under the roller section, and the document gets scanned as it rolls past the stationary bar. A spot or speck that blocks the light bar as the document rolls past manifests itself as a vertical line.
Lift up the left cover and the roller carriage and you will see a narrow pane of glass about 1-1/2" wide. This is what you clean. I cleaned mine twice, unsuccessfully, with a glass wipe. Then I
decided to align the streak on my copy with the glass, and saw the
faintest speck.You may have to look VERY VERY hard under a bright light, but it will be there. A third, more vigorous and direct scrub and the speck was gone--so was the streak.
If the vertical line appears in both modes (document-fed and manual) then there is something on the light bar, or the bar has a broken scan pixel. If the main glass were dirty, you would not see a line, but random spots, and then only when fed manually. Dirty feed rollers can make lines, but not usually the clean, precise lines that are created by a blocked scan bar.
Mar 10, 2009 |
HP OfficeJet 6110 All-In-One InkJet...