Bit Switches - Ricoh FAX550 Service Manual

SERVICE TABLES AND PROCEDURES

BIT SWITCHES

4.2. BIT SWITCHES
Do not adjust a bit switch that is described as "Not used", as this
may cause the machine to malfunction or to operate in a manner
that is not accepted by local regulations. Such bits are for use only
Bit Switch 00
FUNCTION
0 MTF process
0: Enabled 1: Disabled
1 RAM reset level 2
1: Reset
2 RAM reset level 3
1: Reset
Note: RAM reset level
1 is a RAM
adjustment. It is not
described in this
manual.
3 Memory file forwarding
1: Forward the files
4 Inclusion of technical
data on the TCR
0: No 1: Yes
5 Monitor speaker
during video data
communication (tx
and rx)
0: Disabled 1: Enabled
6 Not used
Continued on the next page
WARNING
in other areas, such as Japan.
0: The MTF process is used when required by the software.
1: The MTF process is never used.
When this bit is set to 1, some items stored in the RAM are
reset, and then this bit changes back to 0.
All items are reset except the sensor data, pulse width, and
the clock. Also, all image files in the SAF memory are erased.
When this bit is set to 1, some items stored in the RAM are
reset, then this bit changes back to 0. All items are reset
except the bit switch and NCU parameter settings, sensor
data, pulse width, clock, own tel. no., CSI, RTI, TTI, Quick
Dials, Speed Dials, Groups, and the TCR memory. Also, all
image files in the SAF memory are erased.
This bit switch is recommended for use when it is necessary
to clear the SAF, as fewer RAMs will need reprogramming.
Use this if the printer does not work, but the user wishes to
print the files. First, change the fax machine's telephone
number (Function 51) to the number to which you wish to
forward the files, then set this bit to 1. All files in the memory
will be forwarded. This bit resets to 0 automatically.
However, you must return the fax machine's telephone
number to the original setting. The files stay in memory.
1: Instead of the personal code, the following data are listed
on the TCR as a six-figure number.
First two numbers: Final modem rate (for example, 96
means 9,600 bps)
Second two numbers (Rx mode only): Rx signal level (Level
= 0 - 0.375x, where x is the value on the report; accurate to
3 dB)
Third two numbers (Rx mode only): Rx cable equalizer; 00
= Equalizer is Off, 01 = Equalizer is On
Used for testing. Set this bit to 1 to hear the fax data signal
(phase C of CCITT T.30 protocol).
Make sure that you reset this bit after testing.
Do not change the factory setting.
4-11
November 30th, 1991
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