When Fluorescent/LED Lamps Flicker

Problem

Fluorescent and/or LED lamps flicker at the location of installation.

Cause

It is a result of the voltage drop that occurs when current is supplied to the fusing lamps. It depends on the electrical power environment at the customer's location.

Solution

The procedure depends on when the flickering occurs. So check the occurrence timing, and do the procedure that matches the timing.

Occurrence Timing

Recovery from energy saving

Set SP1-135-001 (Inrush Control) to "1 (ON)".

Side effect: 

Recovery time from energy saving becomes slower by about 0.4 seconds.

After recovery from energy saving

Set SP1-135-001 (Inrush Control) to "1 (ON)".

Set SP1-135-002 (Flicker Control) to "1 (ON)".

Side effect: 

- Recovery time from energy saving becomes slower by about 0.4 seconds.

- If there is a lot of toner in the image, offset may occur.

- If fusing offset occurs, values in the SPs related to fusing offset must be changed.

If it has not been improved by the above, do the following in addition:

Stop the fusing lamps after warm-up. Set SP1-121-001 (Switch:Rotation Start/Stop:Time:After Reload) to "0 sec".

Side effect:

The fusing temperature drops during operation. After printing starts, the fusing temperature is raised to the printing temperature. Because of that, printing completion time becomes slower (by about 1-2 seconds).

Printing

Set SP1-135-002 (Flicker Control) to "1 (ON)".

Side effect: 

- If there is a lot of toner in the image, offset may occur. 

 - If fusing offset occurs, values in the SPs related to fusing offset must be changed.

 SPs to Related Fusing Offset