Operation Manual

EN
Optional copier/scanner 71
Optional copier/scanner
The optional copier/scanner consists of the optical system and the
document pickup and feed systems.
Optical system
The optical system, also known as the contact image sensor,
contains the following:
! light-emitting diode (LED) array
! contact glass
! rod lens array
! sensor array
The light source has three LEDs and is controlled by the formatter.
Light reflected from documents passes through the rod lens array and
focuses on the sensor array.
The sensor array consists of 5,160 phototransistors: 15 driver circuits
amplify the light reception output in units of 344 phototransistors. The
image data is converted and sent from the driver circuits to the
formatter.
Document pickup and feed systems
The document pickup and feed systems contain a pickup roller, feed
roller, and delivery roller, all of which are driven by the copier/scanner
motor (M1).
The document top sensor (U20) detects the top and bottom edges of
the document.