Specifications

8.4 Black or Too Dark Prints

Either the test print is entirely black or the black areas of the text

or graphics appear heavy or smudged because too much toner was

deposited. Do the following:

1. The density adjuster must be set to 7. Adjust the density using

the Print density and Miscellaneous submenus from the Set-Up

Key menu. See Section A.1 key menu map.

2. Swap the EP-ED cartridge

3. Inspect the GND contact of the EP-ED cartridge and connector

block. See Figure 2–12. Clean any dirt or replace the damaged

component.

4. Inspect the connectors and wiring between J210 on the DC

controller board and J401/J742 on the HVPSA.

5. Swap the following:

a. HVPSA

b. DC control board

c. Scanner assembly

d. HVPSA/Fuser interconnect

8.5 In-line Vertical Dots

Do the following when rows of white dots appear on a chaotic,

muddy, and dark background:

1. Inspect and clean the static charge eliminator for damage, dirt,

or loose grounds.

2. The surface of the transfer roller might be contaminated and you

need to swap it.

3. Swap the static eliminator, which is integral to the HVPSA

contact plate.

FIPs For Fixing Image Defects 8–5