Konica Minolta bizhub C658 Service Manual page 1973

bizhub C658/C558/C458/C368/C308/C258
[1] Angle sensor (PS202)
[3] Magnet
3.7 Cooling inside the unit mechanism
• The DF cooling fan motor functions to cool the inside of DF, DF control board, and document feed motor in the DF.
• It discharges heat generated inside the DF out through the exhaust port.
[1] DF cooling fan motor (FM1)
3.8 DF Skew(Front) adjustment mechanism
• The document feeder is installed to the scanner section of the machine and fixed with two hinges.
• The hinge on the right side of the machine is equipped with a DF skew (Front) adjustment mechanism.
• Turn the adjusting screw to move hinges backward or forward. It changes the relative installing position of the machine and DF. Also, it
corrects the inclination of the first side image that is scanned using the CCD unit on the scanner section of the machine.
3.8.1 Hinge on the right side of the machine (front)
• Tighten the hinge fixing screw and turn the adjustment screw to move the hinge forward or backward. (The hinge moves forward or
backward since the DF fixing plate is mounted to the machine)
• If the hinge moves towards the front side of the machine, the scale that is engraved on the hinge appears. (+ direction)
• If the hinge moves towards the rear side of the machine, the scale that is engraved on the hinge is hidden. (- direction)
• The amount of adjustment is read on a scale. (Default: 4 scales)
• The amount of correction to the hinge can be automatically measured through reading the adjustment chart in
Service Mode.
See " I.14.1.2 Adjusting front side skew feed on
[1]
[5]
[8]
[3]
[1]
[2]
[1]
ADF" for details about the "ADF/DFSkew (Front)".
[2] [3]
[6]
[7]
PB THEORY OF OPERATION DF-629 > 3. OPERATION
[2] Original cover sensor (RS201)
- -
[2]
[2] DF control board (DFCB)
[4]
PB-16
"ADF/DFSkew (Front)" of