Specifications

1999 CANON INC. CANON SUPER G3 FAX BOARD-F1 REV.0 MAY 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)

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CHAPTER 2 OPERATION AND TIMING

E. Memory Full Condition

1. Outline

If the image memory becomes full while reading is under way for memory transmission (as

detected by the CPU on the IP PCB), direct transmission mode will automatically be used starting

with the page in question.

Such modes as timer transmission and broadcasting, which are based on memory transmission,

however, cannot rely on direct transmission even if the memory becomes full. In these modes, the

image data that occurs after the detection of the condition will be discarded without transmission.

2. Messages

• memory running out

The message appears when the remaining memory reaches 10% or less. If the size of the

upcoming data is less than the remaining memory, storage may be continued.

• memory full

The message appears when the CPU finds the RAM to be full. After this message has

appeared, all transmissions will be direct transmissions.

3. Sequence of Operations

Figure 2-204 shows the sequence of operations that take place when the CPU detects a memory

full condition, i.e., shifting to direct transmission mode (3 transmission originals; memory full

detected when reading the 3rd page):

Figure 2-204

Reading

Transmitting

Direct transmission starts

calling

1, 2, and 3 indicate the number of originals.

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