Scanner Carriage Storage Control
To protect the scanner carriage, the carriage must be locked to the scanner frame before shipping. The
scanner can be moved to the shipping lock position with SP4-806-001 (Scanner carriage storage
operation).
If pre-shipping check is required, make sure to move the scanner carriage to the right position with
SP4-806-001 and mount the locking parts.
SC121-00 will occur when the power is turned on or scanning takes place while the carriage is locked.
Document Size Detection
In this MFP, for document size detection, two reflecting sensors are used for the sub scanning direction,
and a CCD is used for the main scanning direction.
Sub scanning direction
The document size is detected by ON/OFF of the sensor. The pressure plate open/close sensor is
used for document size detection timing. When the pressure plate open/close sensor has changed
from "no cover" to "cover," the size is detected.
Main scanning direction
RGB color densities at 3 locations (S1, S2, S3) are detected by a CCD, and when any of the RGB
densities is 12 digits or more, it is determined that a document is present.
The pressure plate open/close sensor is used for document size detection timing. When the
pressure plate open/close sensor detects "no cover," the scanner lamp is moved to the right; when
it detects "cover," the scanner lamp is moved to home position while lit, and during this time, the
size is read.
Scanning
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