Solution:

Carry out the following sequence of procedures. Terminate the sequence as soon as the problem is resolved.

Procedure 1: Changing the fusing temperature

In [Advanced Settings] for the custom paper in use, select [Fusing Heat Roller Temperature Adj] and increase the temperature by 5 degrees.

Print the image and check toner fusion. Is the problem resolved?

Yes	Finished!
No	Increase the temperature an additional 5 degrees.

Repeat Step 2 until the temperature reaches 185 degrees. Is the problem resolved?

Yes	Finished!
No	Go to the next step.

Check the type of your machine. Is it Pro 8200EX?

Yes	No further improvement is likely. Contact your service representative.
No	Perform Procedure 2, "Changing the process speed".

Procedure 2: Changing the process speed

This procedure is available only for Pro 8220S, Pro 8210S, Pro 8220 and Pro 8210.

This will slow down the printing to give the toner more time to fuse. However, because of this, throughput will be reduced.

Example when printing on A4/LT paper:

If the process speed is changed from [High] to [Middle]: 136 111 (cpm/ ppm)

If the process speed is changed from [Middle] to [Low]: 111 96 (cpm/ ppm)

If the process speed is changed from [High] to [Low]: 111 96 (cpm/ ppm)

Pro 8210S and Pro 8210 do not have the [Middle] setting.

In [Advanced Settings] for the custom paper in use, select [Process Speed Setting].

Decrease the value by one level.

If the present value is [High], select [Middle]. If it is [Middle], select [Low].

Print the image and check toner fusion. Is the problem resolved?

Yes	Finished!
No	If the problem persists, the machine may be faulty or the paper unsupported. Contact your service representative.