Canon FAX-L350, Руководство по обслуживанию

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FAX-L350 Chapter 1: General Description
NOTE
5.4 Data-related precautions
The memory IC on the circuit board stores the user’s registration data and values for various counters, etc.,
required for servicing. Although this data is normally retained in memory, it can be deleted by mistake.
When handling this data during servicing, note the following precautions.
Figure 1-23 Backed up Devices
5.4.1 Data in the image storage memory (DRAM)
DRAM stores image data which was read other than by a direct transmission. It also acts as a buffer memory
to store the image data received. Transmitted and reception image data stored in the DRAM, on the SCNT
board, are backed up for approx. one hour by electric double layer capacitor.
Reception image data
When image data are set to be printed, they will be stored in the DRAM as memory reception
images, and
“RECEIVED IN MEMORY” will be displayed. If printing is disabled due to a
fault in the printing section, transfer the stored reception image data to another fax machine.
System controller (IC10)
(With built-in SRAM)
Lithium battery
DRAM (IC9)
Rechargeable battery