black dots on print page

[worldartswest]

Black dots about 2-1/2" apart have appeared as vertical stripe on left side of print page.

This is a new printer that we have had for 1 month with the original toner cartridge. I ran "cleaning" page, but still have the  dots. I changed the toner cartridge and still have the dots. What else to do? This is very disheartening as this is a new printer!

[Andrea_Foo]

Referances from past similar issue.

You either have a bad toner cartridge or contamination on your fuser film.

If its the toner cartridge, there is probably a little piece of trash stuck on your imaging drum or a scratch on it. you can take the toner out of the printer, flip it over, and manually spin the drum to look for the corresponding dot or knick on the drum (the imaging drum is sort of a blue greensih color aluminum tube, try and not touch it in the center.) skin oil on the drum can cause print quality problems, use a dry lint free cloth to try and remove any stuck on trash- if it's a knick in the drum, you will just have to live with it until the cartridge is empty and you replace it.

If you dont see a mark on the toner drum, then its probably the fusing unit- you can run cleaning pages to try and get the contamination off the fuser film.

The toner you can replace. If thats not it, it it's cheaper to replace the printer rather than pay a tech to replace the fusing unit

product support page / user guide- page 174

http://support.hp.com/us-en/product/hp-laserjet-pro-200-color-mfp-m276/5097648/manuals

Or  https://support.hp.com/sg-en/document/c03922114

Print a cleaning page

1. From the Home screen, touch the Setup button.

2. Touch the Service menu.

3. Touch the Cleaning Page button.

4. Load plain letter or A4 paper when you are prompted.

5. Touch the OK button to begin the cleaning process.

The product prints the first side and then prompts you to remove the page from the output bin and

reload it in Tray 1,

[PoojaN]

Hello , 

If you are gettig spots on printed paper , 

firstly need to check the cartridge drum , if thr s spot on that drum , if yes then u have to takc cartridge to ARC center as you told that cartridge geniun and changed only a month back 

if thr s no spot then you have to do half self test to check if issue is with fuser 

to perfrom half self - prnt any page ,and stop the printing when the paper s half inside and half out side and that will be paper jam , remove cartridge and take that jammed page slowly and thenc heck if still u got spot , whihc s unfused , then its fuse issue. 

you can run cleaning calinratiojn for 3-5 times and if same issue then its h.w issue 

Print a cleaning page

1. From the Home screen, touch the Setup button.

2. Touch the Service menu.

3. Touch the Cleaning Page button.

4. Load plain letter or A4 paper when you are prompted.

5. Touch the OK button to begin the cleaning process.

The product prints the first side and then prompts you to remove the page from the output bin and

reload it in Tray 1,

HP Pooja N

[soZi]

Hi, 

please follow the step below.

• From the Home screen, touch the Setup button.
• Touch the Service icon 
• Touch the Cleaning Page  option
• Load plain letter or A4 paper when you are prompted.
• Touch the OK button to begin the cleaning process.
• You may have to repeat this upto three times to get the best results

If this does not fix the issue then

Open a blank word document and print 50 pages of blank prints. 

Let me know if this works.

I am an HP Employee

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[worldartswest1]

Thanks for the tips, new toner cartridge and cleaning did not help. Had to clean drum.

[worldartswest1]

accepted as solution