Hp laserjet 3050 scanner coming vertical line

Scanner bulb is probably worn out.

No PC model stated
no OS stated (opr. system) windows 10?
we can not help you, ever lacking key facts
why not go to your HP support page and load all software
Related to Laserjet 3050

here

https://support.hp.com/us-en/drivers/selfservice/hp-laserjet-3050-all-in-one-printer/1140783/model/1140778

If this doesn't appear when printing from computer and olny when copying or faxing, it means that the scanner glass has a spot on it. Please refer to the manual on how to clean the glass window, or go to this page on HP support site to view an image on how to do it:
http://h20464.www2.hp.com/resultsCSR.htm?prodSeriesId=1140783&MEID=A1C54583-26E6-44DA-ACAF-059483D03EE2
The one on the left refers to your model; click the IMAGE button to see an animation.
Please come back with a rating/testimonial if helped.

I would look at the scanner. It is not involved in the printer process but is in the copy process. Clean the glass with a glass cleaner and soft cloth. Remove the glass and also clean the lamp assembly. If either part has a dark mark on it it would leave a line on the copy. If this does not solve your problem and the unit is several years old I would replace the lamp. Let me know if you need more assistance.

Thanks for using FixYa and for the generous rating.

hardrocko

You have white out or something on the glass. The top of the machine will open up about 30 degrees. Look at the glass and you should see something on it. clean it.

Hello,

Please make sure the machine is set for auto-receive in machine set up and make sure the phone cord is plugged into the line jack on the machine. If this machine is not on a dedicated phone line the machine (rings) should be set to pick up before the answering machine does.

I’m happy to help further over the phone at https://www.6ya.com/expert/eric_7148ad2a373711a3

You say that the scanner glass is clean, but it takes next to nothing to cause these lines. Couldn't hurt to chack again (if you havent cleaned it 6 times already).....anyway, I found this document that is not specifically for your machine, but the menu commands should be the same:
Recalibrate the product scanner:

1. Press ENTER/MENU on the control panel of the product.
2. Press the < arrow key once to display Service and press the ENTER/MENU button.
3. Use the < and > keys to select Scan Correction and press the ENTER/MENU button.
4. Insert a blank, bright white piece of letter (8.5 x 11 inches or 216 x 279 mm) or A4 (8.3 x 11.7 inches or 210 x 297 mm) paper into the document feeder tray.

Good Luck, and please rate the response :)

When I Copy or Scan with my HP LaserJet 3050, a solid black line appears on the left margin of the page. . Can you suggest any solution to the problem. .

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.

Scan glass has muck on it, needs to be perfectly clear, it is just in where you feed originals.