barcode like coloured lines on scan

[Rosie456]

When copying a blank sheet of paper, it prints covered in coloured lines and squares / splodges of black ink. Each time they are in different places on the sheet of paper. 

It does not happen when printing from a computer only when photo copying. 

I have cleaned the glass and plastic on the scanner with a microfibre cloth and glass cleaner, cleaned printer head, reset the printer entirely but it is still doing it. The image attached is a blank piece of paper photocopied in colour. 

[KrazyToad]

@Rosie456

Welcome to HP Support Community

I would like to help

Since the issue only occurs during Photocopy this seems to be a Hardware issue

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

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