User's Guide

> Troubleshooting > Image Quality Issues > Black Spots/White Spots > When Spots (Black Spots/White Spots) Occur

When Spots (Black Spots/White Spots) Occur

Overview
Solution

Overview

Noise in the shape of white spots or black spots may occur during printing.

Case 1: When spots (either black or white) occur

Case 2: When multiple white spots (1 mm or less) occur, regardless of color

Solution

First, check the following items.

Item

Solution

Insufficient toner level

1. Checking Remaining Toner Levels

2. Replacing the Toner bottle

Is the toner in the proper condition?

Toner Refresh: [Execute Adjust Operation]

Are the image quality related settings correct?

[Image Diagnosis]

The system features functions for helping control the occurrence of spots (black and white spots) if they do appear. Use the following functions if the above suggestions do not resolve the situation. For details about the various adjustment items, refer to the reference page.

Phenomenon

Solution/Reference

Case 1

Perform the adjustment at the following the steps.

1. [Density Balance Auto. Adjustment] (With Intelligent Quality Optimizer IQ-501)

2. [Maximum Density Adjustment] (With MYIRO-1)

3. [Color Density Control]

Case 2

[Simple Setting]: [White Speckles (1st)]

[Simple Setting]: [White Speckles (2nd)]

[Expert Adj.]: [2nd Transfer Output Adj.(Front)]

[Expert Adj.]: [2nd Transfer Output Adj.(Back)]

If the above measures do not improve the situation, the system's internal transfer roller or fusing unit may be dirty. Contact your service representative.

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