C8055 prints hazy on every sheet of paper

[copynoob]

Hi everyone - I'm new to this community but a longtime tinkerer. I have an C8055 that started printing "hazy". Sometimes I feel like the toner hasn't properly fused to the paper. When I print in color, the haze seems mostly grey / black (maybe hints of purple/cyan); when b/w, the haze seems to be just b/w. I tried replacing the fuser with a new one, but it was to no avail.

Sample prints below. Would love any guidance you all experts should share!


IMG_9211.jpg bw print.jpg

[HiddenPrintshop]

are those the sample prints... looked as if they are blurred out. Just making sure in case others trying to help see the same thing im looking at..

[mojorolla]

Shadow on rear of samples would indicate to me that the black drum is failing.
Enter service mode, dc612 and run pattern 10 to test the black drum unit.

[copynoob]

are those the sample prints... looked as if they are blurred out. Just making sure in case others trying to help see the same thing im looking at..

Apologies. I should have printed a test page and posted that but I was lazy and just took photos of two prints I had. Wanted to blur out the "personal" text. Should have included that detail in my initial post in retrospect. Sorry!

[copynoob]

Shadow on rear of samples would indicate to me that the black drum is failing.
Enter service mode, dc612 and run pattern 10 to test the black drum unit.

Ha okay interesting! I'll try it and report back - thanks!

[copynoob]

So I tried pattern 10 along with some other patterns. I think it might be more than the black drum? Curious for thoughts...

IMG_8845.jpgIMG_8846.jpgIMG_8847.jpgIMG_8848.jpg

[copier addict]

So I tried pattern 10 along with some other patterns. I think it might be more than the black drum? Curious for thoughts...

IMG_8845.jpgIMG_8846.jpgIMG_8847.jpgIMG_8848.jpg

Swap the black drum with one of the others and see if the fault follows.

[copynoob]

Swap the black drum with one of the others and see if the fault follows.

Genius! Swapped black and yellow drums. B/W prints beautifully now and color is a bit funky.

[copier addict]

Genius! Swapped black and yellow drums. B/W prints beautifully now and color is a bit funky.

So, replace the drum and you're golden.

[copynoob]

So, replace the drum and you're golden.

Yup! Already ordered!