October 2000 © TOSHIBA TEC
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MR-2012 MECHANICAL DESCRIPTION
4. MECHANICAL DESCRIPTION
4.1 Paper Feed System
Transport of Document
When a document is placed in the tray, the document empty sensor detects the presence of a document.
When the Start button is pressed on the copier while in ADF mode, the ADF motor operates to lower the
pickup roller and pull in the document. Where there are more than one document, they are separated by the
separation pad under the feed roller and transported one by one.
The document driven by the feed roller is then transported by the read roller. There, the transport of the
document is detected by the ADF registration sensor. When the top of the paper reaches the ADF read
sensor, the scanner starts scanning. The scanned document passes over the ADF exit sensor as driven
by the read roller and then ejected.
ADF 04-01-01
ADF exit sensor
Feed roller
ADF registration sensor
Read roller
ADF read sensor
Flow of document
Document width sensor
Document empty sensor
Pickup roller
Document length sensor
