Duplex Document Off-Set; Fogging Platen Back - Fuji Xerox DocuCentre SC2020 Service Manual

CQ-06 Duplex document off-set
[Symptoms]
Off-set occurs in Copy black&white letter mode.
[Cause]
Because the gradation feature is designed to improve the reproducibility of Low Contrast, when bleed
density of the document is high, the background suppression function might not be able to remove it
completely.
[Procedure]
1. No special actions required.
[Corrective action]
Countermeasures Secondary Defect
Switch the ground color removal level Reproducibility of highlights is degraded.
setting.
Set the density adjustment to "Lighten The density on the whole area becomes lighter and the repro-
+1". ducibility of highlights is degraded.
Version 1.1
DC SC2020
Table 1
CQ-07 Fogging platen back
[Symptoms]
The platen back density comes out to the area other than the paper when white A4 paper such as J
paper/Premier 80 is scanned with A3 in Copy letter mode with AE ON.
[Cause]
Because paper such as J paper/Premier 80 has a low background detection level, the density of the
Platen Back might not be fully removed depending on the S/N level status of the IIT.
[Procedure]
1. No special actions required.
[Corrective action]
Countermeasures
Switch the AE suppression level set-
tings.
Set the density adjustment to "Lighten
+1".
Set the Sharpness adjustment to weak
(soften).
Set the Color balance adjustment level
(low density) to the Light side.
(Full color only)
05/2014
3.2.2 How to use the image quality troubleshooting (IPS)
3-25
Table 1
Secondary Defect
Reproducibility of highlights is degraded.
The density on the whole area becomes lighter and the repro-
ducibility of highlights is degraded.
The text becomes blurred.
The low density becomes lighter and the reproducibility of high-
lights is degraded.
Image Quality Troubleshooting