Gestetner f250 Operating Guide

Page of 187
M
AINTENANCE
7.3
7
5
To clear another item, press Enter and repeat steps 3 and 4 
OR
To return to Standby mode, press Clear/Stop.
Adjusting Shading 
When the scan unit becomes dirty, it can alter the shading value. 
If your copy has black lines or is blurred, adjust the shading 
setting.
1
Load a sheet of white paper into the ADF.
2
Press Menu on the control panel until “Maintenance” 
appears on the top line of the display.
3
Press the scroll button (  or 
) until “Adjust Shading ” 
appears on the bottom line and press Enter.
4
Press the scroll button (  or 
) to select “On” and press 
Enter.
Your machine picks up the paper and adjusts the shading 
value.
Cleaning Your Machine
To maintain the print quality, follow the cleaning procedures 
below each time the toner cartridge is replaced or if print quality 
problems occur.
N
OTES
• While cleaning the inside of the machine, be careful not to touch 
the transfer roller, located underneath the toner cartridge. Oil 
from your fingers can cause print quality problems.
• Cleaning the cabinet of the machine with surfactants containing 
large amounts of alcohol, solvent or other strong substances can 
discolor or crack the cabinet.