68 Routine MaintenanceENGLISH(2) Repeat the procedure to input inputting the pattern number for columns B and C.(A) Less noticeable white streaks(B) More noticeable white streaks(3) When you have finished inputting all pattern numbers, the fax returns to standby mode.Cleaning Your MachineYour fax requires little periodic maintenance. This section describes the necessary cleaningprocedures for the fax. Please note the following before cleaning:z Do not use tissue paper, paper towels, or similar materials for cleaning; they can stick to thecomponents or generate static charges. Cleaning the Exterior of the MachineWhen cleaning the exterior of the machine, do not use tissue paper, rough-textured cloth, orsimilar materials, as these may scratch the surface. Also, never use volatile liquids such asthinners, benzene, acetone, or any other chemical cleaner to clean. Be sure to use a soft clothsuch as eyeglasses cleaning cloth and wipe off dirt on the surface with it gently. Smooth outwrinkles on the cloth if necessary before cleaning. Cleaning Inside of the MachineTo prevent ink spots and paper dust from accumulating inside the fax and affecting print quality,clean the print area of the fax periodically.NoteIf it is difficult to pick the best pattern, pick the setting that produces the least noticeable verticalwhite streaks.NoteWhen you turn off the machine, be sure to press [ON] on the machine.Otherwise, the settings made here will not be saved.CautionNever use volatile liquids such as thinners, benzene, acetone, or any other chemical cleaner to clean theinterior of the fax.NoteThere is the case that some of the data are lost when the power is turned off for cleaning. See “In Case ofa Power Failure” on page 85.CautionAlways unplug the machine from the power outlet before cleaning the machine. If you accidentallyswitch the machine on while cleaning it, you could injure yourself.CautionAlways unplug the machine from the power outlet before cleaning the machine. If you accidentallyswitch the machine on while cleaning it, you could injure yourself.(A) (B)