Canon LASER CLASS 730i Service Manual page 107

LASER CLASS 730i/720i/710 Chapter 4: Maintenance and Service
No. Tx or Rx
##0780 [TX
##0782 [TX
##0783 [TX
##0784 [TX
##0785 [TX
##0787 [TX
##0788 [TX
##0789 [TX
##0790 [RX
##0791 [TX/RX]
##0792 [RX
##0793 [RX
##0795 [TX/RX]
##0799 [TX
New E004
New E100
New E246
New E676
New E677/6F-61
New E677/6F-63
New E733
New E805
Definition
] In ECM transmission, no significant signal can be received after
transmission of EOR-EOM, and the allowed number of
procedure signal re-transmissions was exceeded
] In ECM transmission, DCN was received after transmission of
EOR-EOM
] In ECM transmission, the allowed number of procedure signal
re-transmissions was exceeded or a T5 time-over (60 sec)
condition occurred after transmission of EOR-EOM
] In ECM transmission, ERR was received after transmission of
EOR-EOM
] In ECM transmission, no significant signal can be received after
transmission of EOR-EOP, and the allowed number of
procedure signal re-transmissions was exceeded
] In ECM transmission, DCN was received after transmission of
EOR-EOP
] In ECM transmission, the allowed number of procedure signl re-
transmissions was exceeded or a T5 time-over (60 sec) condition
occurred after transmission of EOR-EOP
] In ECM transmission, ERR was received after transmission of
EOR-EOP
] In ECM receprion, ERR was transmitted after reception of
EOR-Q
During an ECM mode procedure, a signal other than a
significant signal was received
] In ECM reception, PPS-NULL between partial pages cannot be
detected
] In ECM reception, no effective frame was detected while signals
were received at high speed, and a time-over condition occurred
A fault occurred in decoding process during a communication
] System error
Fixing unit failure
Scanner unit failure
The Counter board is left out
Communication error
ROM check error
RAM error
A fault occurred in the communication between the SCNT board
and ECU board/TOP signal cannot be detected
Fan failure
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