Repair information
Removal precautions
CAUTION—SHOCK HAZARD: For personal safety and to prevent damage to the printer, remove the power cord
from the electrical outlet before you connect or disconnect any cable, electronic board, or assembly. Disconnect
any connections between the printer and the computer or peripherals.
Data security notice
1 The printer contains various types of memory that store printer and network settings, information from embedded
solutions, and user data.
The following are the types of memory and data that they store.
• Volatile memory—The printer uses standard random access memory (RAM) to buffer user data temporarily
during simple print and copy jobs.
• Non-volatile memory—The printer may use two forms of non-volatile memory: EEPROM and NAND (flash
memory). Both types are used to store the operating system, printer settings, network information, scanner
and bookmark settings, and embedded solutions.
• Hard disk memory—The printer hard disk is designed for device-specific functionality and cannot be used for
the long‑term storage of data that is not print-related. The hard disk can retain buffered user data from complex
print jobs, form data, and font data.
To erase volatile memory, turn off the printer.
To erase the non-volatile and printer hard disk memory, see
“Configuration Menu” on page 229.
The following parts are capable of storing memory:
• Printer control panel
• User interface controller card (UICC)
• Controller board
• Optional hard disk
Note: The control panel and controller board contain NVRAM.
2 After removing the old part, return it to your next level of support.
Handling ESD‑sensitive parts
Many electronic products use parts that are known to be sensitive to electrostatic discharge (ESD). To prevent damage
to ESD-sensitive parts, do the following:
• Turn off the printer before removing logic boards.
• Keep the parts in their original packing material until you are ready to install them into the printer.
• Make the least-possible movements with your body to prevent an increase of static electricity from clothing fibers,
carpets, and furniture.
• Put the ESD wrist strap on your wrist. Connect the wrist band to the system ground point. This action discharges
any static electricity in your body to the printer.
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Repair information
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