Konica Minolta bizhub C280 Product Guide - Page 195

bizhub C360/C280/C220 Environmental Considerations QUIET OPERATION Several improvements were made to achieve a quiet operation in C360/C280/C220. Improvements include reduction of dB levels as well as elimination of undesirable or unpleasant noises. Noise Reduction Measures taken for MFP • Reduced Fan Noise. • Reduced Paper Feed Noise. • Reduced Drive Noise. • Addition of Constant Pressure Mechanism for Secondary Transfer Roller. Noise Reduction Measures taken for the ADF • Paper feed speed has been changed and acceleration speed has been reduced. • The vibration noise was reduced by changing motor frequency. • Some of the mechanisms were replaced with a belt drive. • Undesirable noises were reduced through the use of brushless motors. Noise Reduction Measures taken for Staple Finisher (FS-527) • Drive noise and the paper transport noise have been reduced by decreasing the maximum transport speed. • Impact noise has been reduced by decreasing the speed at which the roller presses down and releases. • Boot up operations have been reviewed when the power is turned on. • Operating noise has been reduced by use of a belt drive. • Impact noise during the paper path change was reduced. • Operating noise was reduced by reviewing the precision of part locations. 191