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Image Processor Controller Board:
The image processor board provides the
interface between the main board and the scanner. The image processor board
includes a complete color image path, taking raw 24-bit RGB scanner data and
creating print ready CMYK or B&W binary data, 8-bit RGB data, or 8-bit grayscale
data.
NVRAM:
The NVRAM memory device, located on the main board, stores control
panel defaults, network settings, IOT calibration data, copy counts, usage profile data,
and the printer serial number, which is also referred to as the engine tracking number
(ETN). When the electronics module is replaced, the NVRAM must be transferred to
the main board in the replacement electronics module.
Memory:
The main board supports two PC133 compatible SO-DIMM SDRAM
memory modules (64 to 512 MB). While the main board will support memory
configurations as low as 64 MB, the WorkCentre C2424 requires a minimum of
256 MB of system memory to operate. The system has been tested with up to 1 GB of
memory installed. This memory configuration can be ordered as an option.
Hard Drive Support:
A hard drive IDE cable is plugged into the main board from
the hard drive board. A separate power cable must be plugged into the power control
board from the hard drive board to make the hard drive functional. The WorkCentre
C2424 requires that a hard drive be installed for proper operation.
Configuration Card:
The configuration card is a thumbnail-sized device that plugs
into the side of the electronics module. This device stores printer information and
interacts with the printer's NVRAM chip. The configuration card supports the transfer
of network configuration information from a failed printer to a replacement printer.
When the electronics module is replaced, the configuration card must be transferred
to the replacement electronics module. For more information on the configuration
card, see "Configuration Card Personality Parameters" on page 2-45.
Power Control Board:
The power control board distributes drive voltages to
operate the printer's various motors, solenoids and clutches. The power control board
also provides the interface that returns information from the printer's sensors to the
main board. The sensors are used to track mechanical and thermal functions, such as
the position and temperature of the printhead. The power control board also generates
regulated +/- 12 V and 5 V from unregulated +/-15 V power.
Power Supply (Electronics Module):
There are no field adjustments necessary
on the power supply. In general, the power supply has two main, yet interrelated
sections: the AC section and the DC section. In the AC section, power is routed to
10 triacs. Under the main board logic control, the triacs supply AC power to the
10 heaters in the printer.
Two fuses provide current protection to the triacs. Fuse F2 and F3 protect the power
supply from, most often, a shorted triac caused by a defective heater. If the F2 or F3
fuses blow, it is best to replace the electronics module (and, of course, the defective
heater), rather than the fuse. Otherwise uncontrolled, with the fuse replaced but the
triac shorted, AC power may be applied to the heater. Each time the main board turns
2-12
WorkCentre C2424 Service Manual
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Table of Contents
Troubleshooting
