QMS 2425 Operation Manual page 67

To maintain clear, crisp print quality, and to help prevent paper jams,
clean the transfer guide area after replacing a toner cartridge, or
when necessary. Use the following procedure:
1 Open the top cover and remove the toner cartridge.
Note: If you plan to reinstall the toner cartridge, put it back in its
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aluminum bag or a desk drawer, or cover it with a thick cloth while
cleaning the interior of the printer. The toner cartridge can be
damaged by exposure to light.
2 Wipe off any toner residue and paper dust from the silver
metal strip with a soft cloth dampened with water.
3 Then use a soft dry cloth to wipe off any remaining water.
Caution: When cleaning the transfer guide area, be careful not to
touch the transfer charging roller. This may deteriorate print
quality.
4 Return the brush and toner cartridge to the printer.
5 Close the top cover.
6 Connect the interface cables and turn on the printer.