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6/02

3-5

DC1632/2240

IQ3, IQ4

Image Quality

Prelaunch Training/Review

IQ3 Low Image Density RAP

This RAP troubleshoots the causes of output images showing image density lower than speci-

fication

Initial Actions

ï Clean the ROS windows

ï Replace the paper in use with fresh, dry paper of the correct specification

ï Determine if the Drum Cartridge or any of the Toner Cartridges are approaching end-of-

life. Replace if necessary.

ï Perform the Automatic Gradation procedure (refer to the User Guide). If this does not

resolve the problem, continue with this RAP.

Procedure

Go to dC612. Print Test pattern??????. The defect involves a single color.

Go to dC612. Print Test pattern??????. Open the Front Door in the middle of the print job

(approximately 7 seconds after selecting Start.). There is a good toner image on the

Transfer Belt.

Go to the IQ21 RAP to check the Developer Bias. If this does not resolve the prob-

lem, go to the IQ20 RAP to check the 1st BTR bias.

If the problem continues, check the ROS for contamination of the windows or mis-

alignment.

Check the 2nd BTR for damage or incorrect installation. Go to the IQ22 RAP to check the

Backup Roll bias. If the problem continues, replace 2nd BTR Assembly (PL 7.1). If this

does not resolve the problem, replace the Transfer Belt (PL 5.3).

Swap the affected Drum Cartridge with an adjacent unit. Print Test Pattern???. The defect

moved to the new color.

Go to the IQ21 RAP to check the Developer Bias. If this does not resolve the problem, go

to the IQ20 RAP to check the 1st BTR bias. If the problem continues, replace the Devel-

oper for the affected color (PL 6.2). If this does not resolve the problem, replace the ATC

Sensor for the affected color (PL 6.2).

Replace the Drum Cartridge (see Machine Consumables in Section 6).

IQ4 Wrinkled Image RAP

Initial Actions

Procedure

TBD

Xerox DocuColor 1632 Service Manual

Other manuals for Xerox DocuColor 1632