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Troubleshooting■>■Troubleshooting■items■>■Image■Faults■>■35-mm■pitch■ghost■due■to■toner■deterioration■
Troubleshooting■>■Troubleshooting■items■>■Image■Faults■>■35-mm■pitch■ghost■due■to■toner■deterioration■
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In■Case■that■Paper■Setting■for■the■Poor■Image■is■"Plain■Paper"■
1)■Target■current■setting■of■discharge■current■control■
(COPIER■>■ADJUST■>■HV-PRI■>■DIS-TGM/TGC/TGK)■<Level■2>■
Description■modified:■Set■the■setting■value■of■the■corresponding■service■mode■to■"+2",■and■
turn■OFF■and■then■ON■the■main■power.■If■not■improved,■the■setting■value■is■increased■by■
every■[■+2■].■
2)■Adjustment■■of■electrostatic■charge■AC■current■
(COPIER■>■ADJUST■>■HV-PRI■>■DIS-TGM2/TGC2/TGK2)■<Level■2■>■
Description■modified:■Set■the■setting■value■of■the■corresponding■service■mode■to■"+2",■and■
turn■OFF■and■then■ON■the■main■power.■The■setting■value■is■set■to■+4,■If■not■improved.■
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In■Case■that■Paper■Setting■for■the■Poor■Image■is■"Heavy■Paper"■
1)■Target■current■setting■of■discharge■current■control■(COPIER>ADJUST>HV-PRI>DIS-TGM2/
TGC2/TGK2)■<Level2>■
The■setting■value■of■the■applicable■service■mode■is■set■to■"+2."■If■not■improved,■the■setting■
value■is■set■to■+4.■
2)■Adjustment■of■electrostatic■charge■AC■current■(COPIER>ADJUST>HV-PRI>OFSTACM2/
OFSTACC2/OFSTACK2)■<Level1>■
The■setting■value■of■the■applicable■service■mode■is■set■to■"+2."■The■setting■value■is■set■to■+4,■
If■not■improved.■
[Notes■about■remedy]■
A■drum■life■will■be■influenced■if■the■2nd■service■mode■(adjustment■of■electrostatic■charge■AC■
current)■is■changed.■
For■this■reason,■please■do■not■set■the■setting■value■to■+4■or■more■at■the■maximum.■
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35-mm■pitch■ghost■due■to■toner■deterioration■
[Occurrence■area]■
Developing■cylinder■
[Cause]■
In■case■that■the■image■pattern,■which■has■extreme■shading■differences,■is■copied■under■the■
high■temperature■and■high■humidity■environment,■the■deterioration■toner■of■a■previous■image■
may■adhere■on■a■developing■cylinder.■For■this■reason,■the■inversion■residual■image■(negative■
ghost)■of■the■previous■image■may■occur■in■the■next■image.■
[Occurrence■condition]■
In■case■that■the■image■pattern■with■extreme■shading■differences■is■copied■(the■halftone■image■
was■copied■immediately■after■the■solid■image)■
[Remedy]■
1)■Targeted■value■setting■of■ATR■control■(COPIER>ADJUST>DENS>P-TG-Y/M/C/K)■<Level2>■
The■applicable■service■mode■setting■value■for■the■color,■which■the■poor■image■has■occurred,■
is■set■to■"-1."■
2)■After■cycling■the■power■of■the■main■unit,■copy■8■A3■solid■images.■
As■a■result,■if■the■image■on■the■8th■sheet■is■checked■and■a■defect■is■not■improved,■please■
move■on■to■the■following■step.■
3)■Lower■the■setting■value■of■the■applicable■service■mode■by■1■step.■
4)■After■cycling■the■power■of■the■main■unit,■copy■8■A3■solid■images.■
5)■Check■the■image■on■the■8th■sheet.■
6)■If■a■poor■image■is■not■improved,■repeat■Step■3)-5).■
F-6-8