TASKalfa 3500i, Troubleshooting Manual

Page: 26 / 112

Measure for condensation
<Phenomenon>
Flowing image occurs at printing after power on if the inside machine is in cold condition. (condensation
image occurs)
<Method of measure>
1.Update the firmware above Pack.3.07
2.Change refresh frequency (mode) of U148
3.If the condensation occurs easily depends on installation environment (the temperature difference in the
morning and day time is too large and high humidity), set mode 2 in U148.
4.Set to Mode 3 if the condensation can not be eliminated at mode 2.
* Caution
Refresh frequency will be increased if increment of mode number. Therefore, if it is pointed out that the
warm up period becomes longer, set to mode 1.
However, the effectiveness of this measures decreases in comparison with Mode2 in the case of set
Mode1, please ask the user understand to perform refresh operation manually at the time of the
condensation occurs.
Mode Inner humidity <70% 70% ≦ Inner humidity <80% 80% ≦ Inner humidity <90% 90% ≦ Inner humidity
0 0 time 0time 0time 0time
1 0 1 2 3
2 0 2 3 4
3 0 4 5 6
⇒
Recomm
ended
Refresh frequency in each mode
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