Overview

The ADF mechanism*1 of WF-C878Ra/WF-C878R is composed of the pick-up mechanism and the document feed mechanism, and they are driven by the ADF Pick-up Motor and by the ADF PF Motor in the written order respectively.

Configuration of the ADF mechanism

Mechanism Configuration Power Source and Control
ADF mechanism Pick-up Mechanism
  • Pick-up Assy
  • ADF Pad Assy
  • ADF Intermediate Roller
  • ADF PE Sensor A
  • ADF Pick-up Motor
  • ADF Pick-up Scale/Encoder
Paper Feed Mechanism
  • ADF 1st PF Roller
  • ADF 2nd PF Roller
  • ADF PE Sensor A
  • ADF PE Sensor A
  • ADF EJ Roller
  • ADF PF Motor
  • ADF PF Scale/Encoder

The ADF mechanism of this printer features duplex scanning. The CIS Module on the fixed scanner mechanism and the CIS Module on the ADF mechanism read both sides of the document at the same time.
Some models do not have ADF. The pad separation method is used for paper separation. To support document feeding up to A3, four transmissive photo-interrupters are mounted in the Document Support for document size detection.

*1: Some models do not have scanner mechanism.