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Theory of Operation
2-11
Exit Module (MEP) Board
The exit module board controls motor and paper path functions for the exit module
portion of the IOT. Once the print process is complete and the media is ready to exit
the IOT, the primary controller relinquishes control to the exit module (MEP) board.
The exit module board is also the connection point for the stack full sensor, cover
open sensor, exit module elevator carriage, and exit sensors and flags.
Scanner Power Supply
The scanner power supply board supplies power to the scanner and exit module
assemblies using the following voltages:
■
+24 V to the scanner
■
+24 V and +5 V to the exit module board
The electronics module enables or disables the scanner power supply using the power
supply enable line for functions such as Intelligent Ready and standby functions. The
control panel receives power from the power supply contained in the electronics
module.
Electronics Module
The electronics module includes the main board, image processing board, the power
control board, hard disk drive, and the power supply. The electronics module is
replaced as one assembly.
Main Board:
The main board controls the operation of all the mechanical and
electrical systems in the IOT. Through the power control and I/O boards, signals are
passed to the different gear trains, heater controls, and drive motors and signals are
received from sensors for proper operation of the IOT.
The imaging process is a "three way" communication between the electronics
module, printhead, and wave amplifier board. Imaging data is received from either
the print or scan function and is processed through the imaging path portion of the
main board. This data then is split into two paths. One of these paths is through the
power control board to the wave amplifier board. This data controls the operation of
the wave amp with regard to the drive algorithm to use for driving the jet stacks
(discussed later in the printhead section). The second path is through a ribbon cable
from the main board to the printhead control board (located on the underside of the
printhead). These two signals are interpreted by the printhead to properly produce the
image on the drum.
The main board provides support for Ethernet and USB 2.0 external I/O interfaces.
Note
The WorkCentre C2424 system does not support a parallel connection.
Содержание WorkCentre C2424/DX
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