Lexmark T65x and X65x Mono Product Study Guide Rev 1.47
For Training Purposes Only 6/3/2009
20
Names and functions of components
ADF
Sensor (ADF long media)
The document length in the slow scanning direction is detected by this sensor.
Sensor (ADF width 1), Sensor (ADF width 2), Sensor (ADF width 3), Sensor (ADF width 3)
The document length in the fast scanning direction is detected by the combination of these three
sensors detecting the position of the tray on which the document is set.
Sensor (ADF document set)
A sensor that detects the presence or absence of a document on the ADF document tray.
ADF Document Set LED
An LED that illuminates when a document is set on the ADF Document Tray.
Switch (ADF top door interlock)
A switch that detects whether the ADF top door assembly is open.
ADF controller card assembly
A card that controls the ADF unit assembly. The ADF controller card assembly is connected to
and controlled by the Scanner controller card assembly.
Sensor (ADF sheet through)
The ADF sensor (ADF sheet through) is installed immediately downstream from the Feed/pick roll
assembly to detect completion of document feed.
Sensor (ADF 1st scan)
The ADF sensor (ADF 1st scan) is installed just upstream of the scanning surface and is used to
for scanning timing operations.
Sensor (2nd scan)
The ADF sensor (ADF 1st scan) is installed just down stream of the scanning surface and is used
to for scanning timing operations.
Sensor (ADF media exit)
The sensor (ADF media exit) is used to detect when scanned media has exited the ADF.
ADF feed motor assembly
The feed motor assembly is a stepping motor that rotates the pick roll and feed roll in the reverse
direction (CCW direction) and rotates the ADF transport roll assembly in the normal direction (CW
direction).
When this motor rotates in the reverse direction, the ADF transport roll assembly stops.
ADF transport motor
The ADF transport motor is a stepping motor that rotates the ADF registration roll assembly, ADF
feed-out roll assembly, and ADF exit roll assembly.
ADF pick solenoid assembly
This solenoid causes the ADF pick roll to be raised and lowered in order to properly pick the
media.
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