Xerox WorkCentre Pro 423 Service Manual Download

Page: 224 / 619

WorkCentre Pro 423/428

2-192

CHAPTER 2 TROUBLESHOOTING

03/02

How to use the Diagnostic C/E Mode

Chain Function

Item

Content

Default

Description

Access

566

G3M ECM T5 Timer(Common to two
channels)

0:30 min. 1:10 min. 2:65 sec. 3:2
min.

Determines the time for monitoring the release of the remote machine from the
“RNR” state in ECM communication. When the time set up is short, the line is
likely to be released. When the time set up is long, the line release timing at
an invalid sequence will be delayed.

570**

G3M0 NSF,DIS Resend Timer

0:3 sec. 1:3.45 sec. 2:2.55 sec.
3:4.5 sec.

When the terminal is connected to auto receive operation this data sets up
intervals between resend operations at an exchange of NSF/DIS and
NSS/DCS signals for identifying the remove terminal. Change the data to 01
(3.45 sec.) or 11 (4.5 sec.) when the signals are collided with each other by
delayed transmission at the network in the business environments, or 4800bps
where the voice compression rate is high.

572

Idle Time Timer Value Recommended in
T.30

0 to 255ms(1step=1ms)

75=
75ms

573

0 to 255ms(1step=10ms)

10=
100ms

Monitor Timer Value from Carrier Down until Dropout During Image
Information Reception

576**

G3M0 DIS ignore(No. of DIS signals
ignored)

0 to 255 times

Cuts the signal over 250ms momentarily to reboot the echo-suppressor that
the CED signal from the receiving terminal has stopped in 4800bps (ignoring
the DIS/NSF signal). Change the data to 1 (1 ignore) when 4800bps is used
frequently or transmission failure due to echoes occurs often.
Individually reflectable on each speed dial (refer to page 2-207)

577**

Number of G3M0DIS signals ignored

0 to 255 times

Enables the feature of Chain=057 and Function=576(No. of DIS/NSF signals
ignored) only when 4800bps is selected.

581

No. of bytes to send DIS/DTC FIF

0:4bytes system 1: 5bytes system
2: 6bytes system 3: 7bytes system
4: 8bytes system 5: 9bytes system
6: 10bytes system 7: 11bytes sys
8: 12bytes system 9: 13bytes sys
10:14bytes system

Specifies the number of bytes for sending the DIS/DTC signals. The 14Bytes
system is to deal with the super fine resolution mode/inches. In the VAN
Service using the old type G3 models or computer programs, however,
communication error may occur when the DIS/DTC signal of the 14Bytes
system is detected. Change the system to 5Bytes or 4Bytes in such a case.
Ensure to get an approval of the customer for changing the system as the
performance will be lowered by the change.

582**

G3M0 Modem Mode

00:AUTO 01:ITU-T G3

Determines whether or not to send nonstandard signals (NSF/NSC/NSS).
When ITU-T G3 is selected, you cannot use the FX unique features and
remote service feature.

590

Fast Mode Protocol

00:OFF 01:ON

Determines whether or not to enable the Fast Mode Protocol which is the FX
unique mode.

592

MPSX capacity at activating the Fast
Mode Protocol

0:Off 1:On

Determines whether or not to change the mode without going back to Phase B
while the Fast Mode Protocol is being activated.

593

High-Speed/Low-Speed Capacity in
Remote Maintenance

0: Low-speed TRESS
1: High-speed TRESS

This data prescribes a protocol type for remote service. Do not change this
setting unless specified otherwise.

594**

Command Preamble Send Time for
Remote Maintenance

0:300ms 1:1sec

Determines the preamble time for remote service. Change the value to 1 sec
if data errors cause communication failure and necessitate resend frequently.

Xerox WorkCentre Pro 423, Service Manual

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