DC controller PCA
Special consideration
WARNING! Do not install a replacement formatter PCA and DC controller PCA at the same time, and
then turn the product power on.
The formatter PCA and the DC controller PCA store important product configuration information
(NVRAM data) that will be lost if both PCAs are replaced at the same time. When the product power is
turned on, the formatter will restore the NVRAM data to a replacement DC controller.
Replacing both the DC controller and the formatter at the same time will result in severe print-quality
problems.
Replacing the DC controller PCA before the formatter PCA
Use the following procedure if you need to install a replacement DC controller and a replacement
formatter PCA.
NOTE: If you are only installing a replacement DC controller PCA, proceed to Remove the DC
controller PCA on page 131.
1. Install a replacement DC controller PCA.
2. Turn the product power on, and wait for the print-cartridge volume indicators to appear on the
control-panel display.
NOTE: This allows important product information to be written to the replacement DC controller
PCA.
3. Turn the product power off.
4. Install a replacement formatter PCA. See
Remove the formatter PCA on page 134.
5. Turn the product power on.
Remove the DC controller PCA
CAUTION: Do not bend or fold the flat flexible cables (FFCs) during removal or installation. Also, do
not straighten pre-folds in the FFCs. You must make sure that all FFCs are fully seated in their
connectors. Failure to fully seat an FFC into a connector can cause a short circuit in a PCA.
Some parts are sensitive to electrostatic discharge (ESD). Look for the ESD reminder when
removing product parts. Always perform service work at an ESD-protected workstation or mat. If an ESD
workstation or mat is not available, ground yourself by touching the sheet-metal chassis before touching
an ESD-sensitive part.
1. Remove the following components:
●
Right cover. See
Right cover on page 103.
●
Left cover. See
Left cover on page 105.
●
Control-panel module and memory-card reader. See
Control-panel module and photo-card
reader PCA on page 111.
ENWW Internal assemblies 131
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