MUTOH ValueJet - Page 336

ValueJet 1304 Service manual
AP-74109 Rev 1.1 9-22
13 E078Err After
Heat
Abnormal
condition in
after-heater
system
(thermistor,
heater).
Disconnection of
connector, wrong
wiring, or heater
malfunction of
thermistor and heater
may be occurred.
1. Reconnect
connector of
thermistor and
heater.
2. Check connection
of board section.
3. Replace heater.
"4.4.4
Replacing
Heater and
Thermistor
Assembly"
p.4-49
"4.3
Replacement
of Board Base
Section
Components
" p.4-23
14 E079Err
Commu.
Abnormal
condition in
serial commu-
nication
between main
board to
controller
board during
printing
operation.
• Communication
cable may be faulty.
• F/W on controller
board may be faulty.
• Main board
assembly may be
damaged.
• Controller board
assembly may be
faulty.
• Power board
assembly may be
damaged.
1. Check connection
between main board
to controller board.
2. Check connection
between junction
board to controller
board.
3. Check firmware
version and install
the latest version.
4. Replace controller
board or main
board.
5. Replace power
board assembly.
"4.3
Replacement
of Board Base
Section
Components
" p.4-23
"5.5.2
Version
Menu" p.5-13
"7.3.5
Firmware
Installation"
p.7-21
"4.3.6
Replacing
Power Board
Assembly"
p.4-35
15 E080Err
Junction
Abnormal
condition in
serial commu-
nication
between
junction board
to controller
board during
printing
operation.
Table 9-5 Symptoms and Check Items for Mechanical Serious Errors (Continued)
No. Message Event/
symptom
Check item Action Reference