Tray Insertion Detection; Functions Of Sensors Used For Status Monitoring - Lexmark X95 series Service Manual

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When open, the switch (top door interlock) is detected, printing operation is inhibited, and the 24 V supply to the

media feed lift motor and the transport motor is shut off. When open, the switch (HCF unit docking interlock) is

detected, and transfer of media from the HCF is inhibited.

Tray insertion detection

The sensor (HCF media tray set) checks whether the tray is properly set. This check is constant while the power

is on. Printing operation is inhibited if the sensor (HCF media tray set) off (tray is not present) is detected before

printing starts.

Sensor (HCF media tray set)

Switch (HCF top door interlock)—Detects open/close of the HCF top door. The on state of this switch

indicates the top door is closed.

Switch (HCF unit docking interlock)—Detects the docking of the HCF with the printer. The off state of

this switch indicates that the HCF is separated from the printer. In this case, transfer of media is inhibited.

Sensor (HCF media tray set)—Detects insertion of the HCF media tray into the HCF. The sensor turns on

when the HCF media tray is properly inserted. While it is off, media fed from the HCF medial tray is

Switch (HCF top door interlock)

Switch (HCF unit docking interlock)

HCF media tray

Diagnostic aids