Ricoh FACSIMILE FAX77, Field Service Manual

Page: 165 / 197

Code Meaning Suggested Cause/Action
1-71 Printer cover opened during printing 1. Check with the user whether the cover was opened during
printing.
2. Check the cover lock mechanism.
3. Check the cover switch position and actuation.
4. Check connections between the cover switch and the FCU.
5. Replace the cover switch or the FCU.
2-20 Abnormal coding/decoding (cpu 1. Check the connections from the FCU to the MBU and
not ready)
modem.
2. Replace the FCU, MBU, or modem.
2-40 Thermal head strobe signal did not
1. Replace the thermal head.
respond 2. Replace the FCU.
4-00 One page took longer than 8 1. Check for a bad line.
minutes to transmit
4-01 Line current was cut 1. Check the line connector.
2. Check the connection between the FCU and the NCU.
3. Check for line problems.
4. Replace the FCU or the NCU.
4-02 The other end cut the received 1. Ask the other end to change their maximum receive length
page as it was longer than the maxi- setting, then resend.
mum limit.
5-23