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HP LaserJet Pro 100 color MFP M175nw

1. PROBLEM STATEMENT: I am getting black (dark grey) streaks (Photo attached) from my prints, both prints from file and photocopies.

PROBLEM: Black streaks on printsPROBLEM: Black streaks on prints


2. ACTION TAKEN: I performed 'printer service > cleaning page'  multiple times but issue still persists.

3. OBESERVATION: Upon inspection, black (dark grey) streaks are observed on the following parts: (Photos attached) "Note: Terminologies used may be inaccurate, please refer to the image attached"

3(a) Imaging drum

3(b) Transfer roller

3(c) Transfer belt


3(a) Streaks/tracks on  'Imaging Drum'3(a) Streaks/tracks on 'Imaging Drum'
3(b )(c) Streaks/tracks on  'Iransfer Belt' and 'Transfer Roller'3(b )(c) Streaks/tracks on 'Iransfer Belt' and 'Transfer Roller'




Q1. What could be the cause of the problem above?

Q2. Can the hardware be cleaned? If so, what are the appropriate steps to do so?

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