Black/Grey streaks/lines issue (HP LaserJet Pro 100 color MFP M175nw)

[Schumaan]

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

Spoiler

PROBLEM: 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

Spoiler

3(a) Streaks/tracks on 'Imaging Drum'

Spoiler

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

QUESTION:

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?

[KrazyToad]

@Schumaan

Welcome to HP Support Community

I appreciate all your efforts and expertise in troubleshooting this issue

At this point I suggest you contact HP Support in your region for service options

1) Click on this link - www.hp.com/contacthp/ 
2) Select your product type below.
3) Enter the serial of your device. 
4) Select the country from the drop-down. 
5) Select the chat or get phone number options based on your preferences. 
6) Fill the web-form and proceed further.

Thank you

If the information I've provided was helpful, give us some reinforcement by clicking the "Solution Accepted" on this Post and it will also help other community members with similar issue.

[Schumaan]

@KrazyToad

Thanks for the reply.

To date, I have attempted to clean the 'dust' off and the prints appear clean.

I am suspecting a possible overflow from the waste toner container.

Is there a waste toner container in the printer model HP LaserJet 100 color M175nw ?

Can you advise on how I can locate/access the waste toner container?

I would like to attempt resolving the matter at hand independently, if possible.

If necessary, I'll contact the local region service team as advised.

Best regards,

Schumaan