HP Color LaserJet CM1312 MFP Serie Guide De Référence Rapide page 19

Clean the paper path
If you do not have access to HP ToolboxFX, you can print and use a cleaning page from the product control panel.
1
Press Setup ( ).
Use the arrow buttons to find the Service menu, and then
2
press OK.
3 Use the arrow buttons to find Cleaning mode, and then press
OK.
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