Paper Feed, Transfer, And Fusing - Lexmark Optra Color 1200 Service Manual

5050-001

Paper Feed, Transfer, and Fusing

Two drives perform the entire paper feed in this printer, drive 1 and
drive 2. There is a separate motor in the second paper feeder to
drive the paper feed.
Drive 1
Drive 1 consists of a brush-less dc motor and gear unit. Drive 1
carries paper from the paper feed unit to the registration unit and
also drives the electrophotographic process. The motor starts
running after it receives an ON signal from the printer controller. The
motor then sends a synchronizing signal to the printer controller.
When monochrome mode is selected, clutch 2 interrupts the
electrophotographic process for color printing.
Do not disassemble the gears in drive 1 because the phase
adjustment has been preset. Do not turn the PC when it is out of the
machine as the gears will lose timing to work as a matched set.
Drive 2
Drive 2 consists of a hybrid stepping motor and gear assembly. It
drives the fuser and exit assembly. There is no synchronizing signal
for this motor.
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Service Manual