Service manual

QMS 3260/4032 Laser Printer - Base Engine Technical Manual 5-25

Release Version 11-97

Primary Fault Isolation Procedures

5.11 Background continued

Step Actions and Questions Yes No

IMAGE TRANSFER INSPECTION

1. Remove the Rear Cover (RRP 1.3).

2. Generate a Blank Test Print and switch OFF printer power

halfway through the print cycle.

3. Open the Left Upper Cover.

4. Open the Drum Shutter.

5. Hand rotate (counter clockwise) the Main Drive Motor to

advance the Drum far enough so you can see the devel-

oped image area on the Drum before

it reached Transfer.

Before Transfer was the drum clean and without notice-

able background toner, but there was background visible

on the paper after Transfer?

Replace the

BTR Assem-

bly (RRP 5.3)

Go to step 4

FUSER INSPECTION

1. Generate another Blank Test Print and switch OFF printer

power when the print is halfway through the Fuser.

2. Open the Left Upper Cover.

3. Examine the paper areas before the image enters the

Fuser and after the image exits the Fuser.

Is paper clean before it enters the Fuser, but there is back-

ground on the paper when it exits the Fuser?

Replace the

Fuser Assem-

bly (RRP 6.1)

Go to Suspect

Components