Canon MultiPASS C755, Service Manual, Page: 74 / 143

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MultiPASS C755 Chapter 3: Maintenance & Service
• EPT (Echo Protect Tone)
Change service data #1 SSSW SW03 bit 1.
Bit 1:1 Transmit an echo protect tone.
0 Not transmit an echo protect tone.
• Adjust NL equalizer.
Set service data
#2 MENU
Parameter No.05 to
“ON”
.
• Reduce the transmission start speed.
Reduce the transmission speed by changing user data “SYSTEM SETTINGS” “TX START
SPEED”
.
• Loosen the TCF judgment standard.
Not available for this fax.
• Loosen the RTN transmission conditions.
Change service data #3 NUMERIC Param. Parameter No.02 to 04.
No.02 Percentage of errors in all lines : Set close to 99%.
No.03 Number of lines of burst condition : Set close to 99 lines.
No.04 Lines below the burst condition : Set close to 99 times.
• Increase the no-sound time after CFR reception.
Change service data #1 SSSW SW04 bit 4 to “1” .
Bit 4:1 Time when the low-speed signal is ignored after sending a CFR signal: 1500 ms
0 Time when the low-speed signal is ignored after sending a CFR signal: 700 ms