Ricoh B230 Service Manual

							G3 Interface Unit (B787) 
SM 11 B786 
B786 
Fax Option 
For Installing the Double G3 Boards 
 
1.  Attach the flat cable holder [A], and then hold the flat cable [B] with it as shown. 
2.  Attach the clamp [C] as shown. 
3.  Install the telephone jacks [D] and [E] for G3 boards. 
 
4.  Attach the G3 boards [F] and [G] to the interface board [H], and then attach it to 
the fax unit (
 x 9). 
5.  Connect the telephone jack connectors [I] and [J] to the G3 board. 
6.  Connect the interface board [G] to the fax controller board [K] with the flat cable 
[L].  
						

							G3 Interface Unit (B787) 
B786 12  SM 
For Single G3 Board and Double G3 Boards 
1.  Reinstall the fax unit to the controller board (see step 5,  x 4). 
 
ƒ  If the fax unit has not been installed, attaching the mother board to the 
mother board bracket is necessary. For details, refer to the FAX OPTION 
TYPE MPC3000 (B786) INSTALLATION PROCEDURE. 
 
2.  Attach the controller box cover [A] to the controller box (see step 3 and 4, 
 x 
12). 
3.  Attach the rear cover to the copier (
 x7).  
 
4.  Attach the ferrite core [B] to the telephone cord [C]. 
5.  Connect the telephone cord [C] to the LINE 2 jack. 
 
ƒ  Connect the one more telephone cord to the LINE 3 jack if you have 
installed two G3 boards. Make sure that each telephone (LINE2 and LINE3)  
						

							G3 Interface Unit (B787) 
SM 13 B786 
B786 
Fax Option 
cord has a ferrite core. 
6.  Put the power plug into the outlet and turn on the main power switch. 
7.  Enter the service mode. Set bit 1 of communication switch 16 to “1” (SP1-104-
023). 
8.  Set bit 3 of communication switch 16 to 1 (SP1-104-023) if you have installed 
two G3 boards. 
9.  Turn the main power switch off and on. 
10.  Print out the system parameter list. Then check that “G3” shows as an option. 
11.  Set up and program the items required for PSTN-2 communications.  
						

							Fax Unit Option 
B786 14  SM 
1.3  FAX UNIT OPTION 
1.3.1 HANDSET (B433) 
 
ƒ  The optional handset is available for the U.S. version only. 
For the copier without any finisher 
 
1.  Make two holes in the scanner left cover. 
2.  Attach the bracket [A] enclosed with the fax unit (
 x 2) as shown. 
3.  Remove the label [B] from the handset cradle [C]. Attach the cradle [C] to the 
bracket [A] (
 x 2), and then replace the label [B]. 
4.  Install the handset [D] on the cradle [C]. 
5.  Attach the ferrite core [E] to the cable.  
6.  Attach the two clamps [F] as shown. 
7.  Line the cable [G] as shown (
 x 2). 
8.  Connect the cable [G] to the “TEL” jack at the rear of the machine.  
						

							Fax Unit Option 
SM 15 B786 
B786 
Fax Option 
For the copier with any finisher 
 
9.  Do the hand set installation procedure for the copier without any finisher. 
10.  Attach the clamp [A] to the scanner left cover. 
11.  Clamp the hand set cord with clamp [A]. 
 
  
						

							FCU 
B786 16  SM 
2. REPLACEMENT AND ADJUSTMENT 
2.1 FCU 
1.  When you replace the FCU board, remove the MBU board from the old FCU 
board and install it on the new FCU board. 
2.  Set the correct date and time with the User Tools: User Tools> System Settings> 
Timer Setting> Set Date/Time. 
 
ƒ  Do not turn off the battery switch (SW1). 
ƒ  Do SP6101 to print the system parameters, and check the settings.  
						

							Error Codes 
SM 17 B786 
B786 
Fax Option 3. TROUBLESHOOTING 
3.1 ERROR CODES 
If an error code occurs, retry the communication. If the same problem occurs, try to fix the 
problem as suggested below. Note that some error codes appear only in the error code 
display and on the service report. 
 
Code Meaning Suggested Cause/Action 
0-00  DIS/NSF not detected 
within 40 s of Start being 
pressed ƒ  Check the line connection. 
ƒ  The machine at the other end may be 
incompatible. 
ƒ  Replace the FCU.  
ƒ  Check for DIS/NSF with an oscilloscope. 
ƒ  If the rx signal is weak, there may be a bad 
line. 
0-01 DCN received 
unexpectedly ƒ  The other party is out of paper or has a 
jammed printer. 
ƒ  The other party pressed Stop during 
communication. 
0-03  Incompatible modem at 
the other end The other terminal is incompatible. 
0-04  CFR or FTT not received 
after modem training ƒ  Check the line connection. 
ƒ  Try changing the tx level and/or cable 
equalizer settings. 
ƒ Replace the FCU. 
ƒ  The other terminal may be faulty; try sending 
to another machine. 
ƒ  If the rx signal is weak or defective, there may 
be a bad line. 
Cross reference 
Tx level - NCU Parameter 01 (PSTN) 
Cable equalizer - G3 Switch 07 (PSTN) 
Dedicated Tx parameters in Service Program 
Mode 
0-05  Modem training fails even 
G3 shifts down to 2400 
bps.  ƒ  Check the line connection. 
ƒ  Try adjusting the tx level and/or cable 
equalizer. 
ƒ Replace the FCU. 
ƒ  Check for line problems. 
Cross reference 
See error code 0-04. 
0-06  The other terminal did not ƒ  Check the line connection.  
						

							Error Codes 
B786 18  SM 
Code Meaning Suggested Cause/Action 
reply to DCS ƒ  Try adjusting the tx level and/or cable 
equalizer settings. 
ƒ Replace the FCU. 
ƒ  The other end may be defective or 
incompatible; try sending to another machine. 
ƒ  Check for line problems. 
Cross reference 
See error code 0-04. 
0-07 No post-message 
response from the other 
end after a page was sent ƒ  Check the line connection. 
ƒ Replace the FCU. 
ƒ  The other end may have jammed or run out of 
paper. 
ƒ  The other end user may have disconnected 
the call. 
ƒ  Check for a bad line. 
ƒ  The other end may be defective; try sending 
to another machine. 
0-08  The other end sent RTN or 
PIN after receiving a page, 
because there were too 
many errors  ƒ  Check the line connection. 
ƒ Replace the FCU. 
ƒ  The other end may have jammed, or run out 
of paper or memory space. 
ƒ  Try adjusting the tx level and/or cable 
equalizer settings. 
ƒ  The other end may have a defective 
modem/FCU; try sending to another machine. 
ƒ  Check for line problems and noise. 
Cross reference 
ƒ  Tx level - NCU Parameter 01 (PSTN) 
ƒ  Cable equalizer - G3 Switch 07 (PSTN) 
ƒ  Dedicated Tx parameters in Service Program 
Mode 
0-14 Non-standard post 
message response code 
received ƒ  Incompatible or defective remote terminal; try 
sending to another machine. 
ƒ  Noisy line: resend. 
ƒ  Try adjusting the tx level and/or cable 
equalizer settings. 
ƒ Replace the FCU. 
Cross reference 
See error code 0-08. 
0-15  The other terminal is not 
capable of specific 
functions. The other terminal is not capable of accepting the 
following functions, or the other terminal’s memory 
is full. 
ƒ Confidential rx 
ƒ Transfer function 
ƒ SEP/SUB/PWD/SID 
0-16  CFR or FTT not detected 
after modem training in ƒ  Check the line connection. 
ƒ Replace the FCU.  
						

							Error Codes 
SM 19 B786 
B786 
Fax Option 
Code Meaning Suggested Cause/Action 
confidential or transfer 
mode ƒ  Try adjusting the tx level and/or cable 
equalizer settings. 
ƒ  The other end may have disconnected, or it 
may be defective; try calling another machine. 
ƒ  If the rx signal level is too low, there may be a 
line problem. 
Cross reference 
See error code 0-08. 
0-20  Facsimile data not 
received within 6 s of 
retraining ƒ  Check the line connection. 
ƒ Replace the FCU. 
ƒ  Check for line problems. 
ƒ  Try calling another fax machine. 
ƒ  Try adjusting the reconstruction time for the 
first line and/or rx cable equalizer setting. 
Cross reference 
Reconstruction time - G3 Switch 0A, bit 6 
Rx cable equalizer - G3 Switch 07 (PSTN) 
0-21  EOL signal (end-of-line) 
from the other end not 
received within 5 s of the 
previous EOL signal ƒ  Check the connections between the FCU and 
line. 
ƒ  Check for line noise or other line problems. 
ƒ Replace the FCU. 
ƒ  The remote machine may be defective or may 
have disconnected. 
Cross reference 
Maximum interval between EOLs and between 
ECM frames - G3 Bit Switch 0A, bit 4 
0-22  The signal from the other 
end was interrupted for 
more than the acceptable 
modem carrier drop time 
(default: 200 ms) ƒ  Check the line connection. 
ƒ Replace the FCU. 
ƒ  Defective remote terminal. 
ƒ  Check for line noise or other line problems. 
ƒ  Try adjusting the acceptable modem carrier 
drop time. 
Cross reference 
Acceptable modem carrier drop time - G3 Switch 
0A, bits 0 and 1 
0-23  Too many errors during 
reception ƒ  Check the line connection. 
ƒ Replace the FCU. 
ƒ  Defective remote terminal. 
ƒ  Check for line noise or other line problems. 
ƒ  Try asking the other end to adjust their tx 
level. 
ƒ  Try adjusting the rx cable equalizer setting 
and/or rx error criteria. 
Cross reference 
Rx cable equalizer - G3 Switch 07 (PSTN) 
Rx error criteria - Communication Switch 02, bits 0 
and 1  
						

							Error Codes 
B786 20  SM 
Code Meaning Suggested Cause/Action 
0-30  The other terminal did not 
reply to NSS(A) in AI short 
protocol mode ƒ  Check the line connection. 
ƒ  Try adjusting the tx level and/or cable 
equalizer settings. 
ƒ  The other terminal may not be compatible. 
Cross reference 
Dedicated tx parameters - Section 4 
0-32  The other terminal sent a 
DCS, which contained 
functions that the receiving 
machine cannot handle. ƒ  Check the protocol dump list. 
ƒ  Ask the other party to contact the 
manufacturer. 
0-33  The data reception (not 
ECM) is not completed 
within 10 minutes. ƒ  Check the line connection. 
ƒ  The other terminal may have a defective 
modem/FCU. 
0-52  Polarity changed during 
communication ƒ  Check the line connection. 
Retry communication. 
0-55  FCU does not detect the 
SG3.  ƒ  FCU firmware or board defective. 
ƒ  SG3 firmware or board defective. 
0-56  The stored message data 
exceeds the capacity of 
the mailbox in the SG3. ƒ  SG3 firmware or board defective. 
0-70  The communication mode 
specified in CM/JM was 
not available 
(V.8 calling and called 
terminal) ƒ  The other terminal did not have a compatible 
communication mode (e.g., the other terminal 
was a V.34 data modem and not a fax 
modem.) 
ƒ  A polling tx file was not ready at the other 
terminal when polling rx was initiated from the 
calling terminal.  
0-74  The calling terminal fell 
back to T.30 mode, 
because it could not detect 
ANSam after sending CI. ƒ  The calling terminal could not detect ANSam 
due to noise, etc. 
ƒ  ANSam was too short to detect. 
ƒ  Check the line connection and condition. 
ƒ  Try making a call to another V.8/V.34 fax. 
0-75  The called terminal fell 
back to T.30 mode, 
because it could not detect 
a CM in response to 
ANSam (ANSam timeout). ƒ  The terminal could not detect ANSam. 
ƒ  Check the line connection and condition. 
ƒ  Try receiving a call from another V.8/V.34 fax. 
0-76  The calling terminal fell 
back to T.30 mode, 
because it could not detect 
a JM in response to CM 
(CM timeout). ƒ  The called terminal could not detect a CM due 
to noise, etc. 
ƒ  Check the line connection and condition. 
ƒ  Try making a call to another V.8/V.34 fax. 
0-77  The called terminal fell ƒ  The calling terminal could not detect a JM due