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• PPR
The receiving side informs the transmitting side of error frames by PPR in
response to PPS-Q. MCF is returned when there are no errors. As a single
block of image data has 256 frames, frames are assigned a frame number
within the range 0 to 255. The transmitting side is informed of the recep-
tion state of the 256 frames by PPR. "1" is set to error frames or frames
that were not received for notifying the transmitting side. If the number of
frames in the final block is 256 or less, "1" is set to non-existent frames.
0
1
2
0
1
0
"1" is set for frames containing an error.
G3 FACSIMILE COMMUNICATIONS
3
1
Fig. 5-86 Details of PPR
1
2
3
254 255
0
0
4
5
6
ït
çi
5–127
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