Advanced Guide > Maintenance > Performing Maintenance from a Computer > Cleaning Inside the Printer

# Cleaning Inside the Printer

The bottom plate cleaning function allows you to prevent smudges on the reverse side of a sheet of paper. Perform bottom plate cleaning before you perform duplex printing.
Also perform bottom plate cleaning if ink smudges caused by something other than print data appear on the printed page.

The procedure for performing bottom plate cleaning is as follows:

## Bottom Plate Cleaning

1. Open the printer driver setup window

2. Click Bottom Plate Cleaning on the Maintenance tab

   The Bottom Plate Cleaning dialog box opens.

3. Load paper in the printer

   As instructed in the dialog box, fold the A4 size or Letter size plain paper in half horizontally, and then unfold the sheet.
   Load the paper into the rear tray in the portrait orientation with the crest of the crease facing down.

4. Perform the bottom plate cleaning

   Make sure that the printer is on and click Execute.
   Bottom plate cleaning starts.

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