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‎11-08-2019 09:09 AM

HP Recommended
Product: Home build
Operating System: Microsoft Windows XP

Hi,

I'm using a HP4700 when printing or duplex printing the  white  paper is covered in an overall background grey colour under the print.

It looks like surplus toner is not being removed from the transfer sheet.

Transfer unit 100%.

I've changed the black toner cartridge with no change to the print quality.

I've run calibrate and cleaning program.

Any help will be appreciated.

Best wishes,

SeeAll

 

 

6 REPLIES 6

‎11-08-2019 09:52 AM

HP Recommended

You can run the Half-way test to isolate a problem to the fuser or laser printing area:

https://www.printertechs.com/printer-troubleshooting/halfway-test

 

If the problem is in the laser area then I would look at the image transfer belt next.

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‎11-08-2019 10:26 AM

HP Recommended

Run the print quality pages and post them here.

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‎11-08-2019 01:22 PM

HP Recommended

I've run the half-way test everything's fine, but just before closing the transfer belt assembly I noticed, what appears to be a film of black toner on the transfer belt.  I wiped the belt.  After printing four sheets the problem has reappeared, and a film of black only toner is on the transfer belt.

The image transfer belt still shows 100%

Any thoughts?

 

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‎11-08-2019 09:05 PM

HP Recommended

The image transfer belt shows 100% doesn't mean it is good.

Do as Repairatrooper said run the print quality pages and post them here it will help someone to help you.

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‎11-09-2019 05:17 AM

HP Recommended

Hi,

please find attach print quality pages, and a sample page showing the greyed background.

Could the wiper blade not be cleaning the surplus toner from the drum in the toner cartridge?SampleSamplePrint Quality InfoPrint Quality InfoDiagnostic pageDiagnostic pagePage 1Page 1Page 2Page 2Page 3Page 3Page 4Page 4Page 5Page 5

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‎11-10-2019 02:27 AM

HP Recommended

I can't see anything  wrong in you posted pictures except for the first one covered in an overall background grey colour just as you've said.

But the Diagnostics Pages seem fine.

 

Did you ever try different kind of paper to rule out the paper's issue.

And another diagnostic way is to get into diagnostic menu from panel to disable cartridge check and exchange the black and cyan toner cartridge then re-print all the pictures you post before to see what will happen.

Post all of them here maybe someone can help.

 

Sorry for my poor English i'm not living in an English using country i'm in Taiwan.

 

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