Ricoh G157 Service Manual page 108

ERROR INDICATION
[11] General communication-related
Code 1 Code 2
B0 02
03
04
[12] Maintenance mode
Code 1 Code 2
E0 01
02
[13] Equipment error
Code 1 Code 2
FF XX
G157
Unable to receive the next-page data.
Unable to receive polling even during turn-around transmission due to
call reservation.
PC interface error.
Failed to detect 1300 Hz signal during a burn-in operation.
Failed to detect tone signals during a burn-in operation.
Equipment error (For XX,
Causes
Causes
Causes
4.1.1 Machine Error xx)
4-18 SM