Question about HP LaserJet 3050 All-In-One Printer
Most problems related to printing and printout is caused by the Drum and in rare cases Cartridges. But since your print-out isn't visible or having faint inks, and have proportion on a particular part on the paper, i suspect the drum. First try this.
Open the door which covers the cartridges and drum (front door) while the printer is still On. Take a soft feather (of you can use soft-brush), wipe the cartridge's bar (transparent glass rod smeared with ink). Also wipe the drum's bar (blue glass rod) with another feather/soft-brush. Close the door, again open it and wipe them once again. Now print a copy, if you see any changes, then you need to clean the drum and remove the waste ink from the waste ink tank. You'll need to disassemble the drum to do this. It's risky and you may damage it if you haven't done yet. If you are new with it, I would not recommend you do that, rather call a tech or experienced friend and let him/her do it for you so that you can copy what he/she is doing with it and how the waste ink tank is cleared.
For laser drums, instruction isn't sufficient to disassemble and assemble it, without experience, you may damage the expensive drum.
It would be much helpful if you have spares, drum or cartridge so that you can try with another. Even cleaning doesn't clear the problem, you need to replace the drum which means you need to buy a new one and install it.
I wish you all the best.
Thanks for using FixYa.
Posted on Aug 05, 2010
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Posted on Jan 02, 2017
Tips for a great answer:
This article provides the self-diagnostic
steps necessary to evaluate top-to-bottom streaks that appear when
copying or scanning.
Important! This is seldom a scanner hardware failure.
The main reason for this anomaly is debris or marks on the scanner glass that is used for Auto document feeder (ADF) page scans.
Printed or Scanned Page Illustration
Who should consider this article?
Any user of an MFP or All-In-One printer experiencing the following symptoms:
Think of it this way:
Suggested Diagnosis and Fix
Step Action 1 Locate the portion of the glass designated for ADF scans.
HINT: The glass location differs by model. This area is often separate from the scanner flatbed. Please reference User's Guide for more information if you are having a difficult time locating this designated area.
2 Perform a visual inspection for any of the following recurring culprits:
If... Then... Vertical lines appear only when printing... Consider other printer-related topics such as toner cartridge, charge roll, photoconductor, transfer roll, or fuser. Contact Lexmark Technical Support. Vertical lines appear when you lay the page on the flatbed... Consider other printer-related topics such as toner cartridge, charge roll, photoconductor, transfer roll, or fuser. Contact Lexmark Technical Support. Vertical lines appear on ADF-fed printed copies, but they do not appear on scan-to-network [e-mail, FTP, folder (PC), solutions]... Consider other printer-related topics such as toner cartridge, charge roll, photoconductor, transfer roll, or fuser. Contact Lexmark Technical Support.
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