
E N T 5 0 1 0
Model Name:
RJ–4100
E N T 5 0 1 0
Model Name:
RJ–4100
Problem Involving Noise
When No Error is Displayed on the Printer's Liquid Crystal Display
1
• Abnormal noise when standing by
ready to print
1-1
• Is this a high frequency noise?
→
There are power switching control circuits on the power board assembly and X and Y DC motor switching
control circuits on the main board assembly. Each of these produces a prescribed voltage and this is the
sound produced at that time.
It does not affect the operations. Please explain.
❈
If the above procedures do not improve the symptoms, the main unit has probably developed a fault for
some reason.
Go to MAP5000
No.
Symptom
Sequence
Items to be Confirmed
When No Error is Displayed on the Printer's Liquid Crystal Display
Problem Involving Noise
85