Iq3 Low Image Density Rap; Iq4 Wrinkled Image/Paper Rap - Xerox DocuColor 2240 Service Manual

IQ3 Low Image Density RAP

This RAP troubleshoots the causes of output images showing image density lower than speci-
fication.
Initial Actions
• Perform IQ1 IOT Image Quality Entry RAP first.
• Clean the ROS windows.
• Replace the paper in use with fresh, dry paper of the correct specification.
• Determine if the Drum Cartridge or any of the Toner Cartridges are approaching end-of-
life. Replace if necessary.
• Perform Max Setup (ADJ 9.1). If this does not resolve the problem, continue with this
RAP.
• If the problem occurs with black images or text only, check that the value in NVM location
752-324 is 0.
• If the problem occurs in Copy mode only, check that the DADF is functional. Ensure that
NVM loc. 715-400 = 0.
Procedure
Go to dC612. Print Test pattern 12. The defect involves a single color.
Y N
Go to dC612. Print Test pattern 12. Open the Front Door in the middle of the print job
(approximately 7 seconds after selecting Start). Extend the IBT. There is a good toner
image on the Transfer Belt.
Y N
Go to the IQ21 RAP to troubleshoot the Developer Bias circuit. If this does not
resolve the problem, go to the
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
Backup Roll bias. If the problem continues, replace 2nd BTR Assembly
does not resolve the problem, replace the Transfer Belt
Swap the affected Drum Cartridge with an adjacent unit. Print Test Pattern 12. The
moved to the new color.
Y N
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
Image Quality
IQ3, IQ4
IQ20 RAP to check the 1st BTR bias.
IQ22 RAP to check the
(PL
(PL 5.3).
in Section 6).

IQ4 Wrinkled Image/Paper RAP

Areas of prints (usually 11x17 in./A3) have distinctive "worm track" patterns or light "cloudy"
areas in the image. Actual wrinkles in the paper itself can also occur.
Initial Actions
NOTE: The following factors will increase the likelihood of this problem:
• Lighter weight papers.
• Larger papers.
• Short-grain 11x17 in / A3 papers.
• Old (not freshly opened) paper.
• 2 sided printing
• Fuser with 1100 or more hours of operating life.
Make the following modifications to the copy/print jobs if possible:
• Ensure that the paper is dry and fresh.
• Use heavier weight paper
• Use long-grain paper.
Procedure
If the problem persists after performing the Initial Actions, replace the Fuser
7.1). If this
defect
02/03
3-6
(PL 7.1).
Initial issue
DC 3535/2240/1632