Konica Minolta AccurioPress C2070 Troubleshooting Manual page 21

(3) Solution
1. Change DipSW1-0 to 1 to display Expert Adjustment to Paper Setting.
[Service mode]→ [System Setting]→[Software DipSW Setting]
2. In Expert Adjustment of Paper Setting, turn ON [Thick Bk mode] to ON.
With this setting, even for the single Bk printing, YMC 1
and that is effective to reduce vibration.
[Paper Setting]→[Expert Adjustment]→[Thick Bk mode]
• When the Thick Bk mode is enabled, even for the single Bk print, process related
parts such as charging corona, drum, developing unit, developer, 1
of Yellow, Magenta and Cyan is consumed.
• Also, toner scattering inside machine may occur. Therefore, it is recommended
to turn off the [Thick Bk mode] when it is not required.
Toner scattering can be reduced by changing setting of DipSW 104-0, 104-1 (for
Band creation control)
Rough indication is, 3% for 3,000 pages in Thick Bk mode.
However, the toner not used in the image is also consumed. Also, the paper
distance is enlarged at once in every 100 pages. Consequently, the productivity
decreases.
Note
• When the band creation control is enabled while the intermediate transfer cleaning
unit reaches over the half of the limit count, cleaning failure may occur. In that
case, replace the blade of the intermediate transfer cleaning unit.
If the symptom is not improved enough by performing "2", try following procedure
3. Change the setting to use lower paper weight than actual paper to increase line speed.
[Paper Setting]→[Change Setting] → [Paper Weight]
2
• 257g/m or more
• 177 to 256g/m
• 177 to 256g/m
When selecting the step 1, fusing duration is decreased and fusing problem possible
occurs. To prevent that, change the Fusing upper roller temperature.
[Paper Setting]→[Change Set]→[Expert Adjustment]→[Next]→[Temperature of Upper
Fusing Roller]
• 257g/m
If Improvement level is not enough, increase the temperature. Up to +20°C setting is
available.
• 177 to 256g/m
• 177 to 256g/m2 paper with 136 to 176g/m
If improvement level is not enough, increase the temperature. Up to +20°C setting is
available.
4. Changing the screen type.
[Utility]→[Machine Admin. Setting]→[System Setting]→[Expert adjustment]→[Quality
Adjustment]→[Custom Screen]
• Dot175 (Screen 2 at default) is recommended.
By changing from Screen 1 to Screen 2, resolution is reduced. It makes the line less
visible.
• After changing the screen type, perform [Highlight adjustment].
5. If the solutions are not enough,
KONICA MINOLTA Confidential
2
(For low temperature environment)
2
(For other than low temperature environment): Select 136 to 176g/m
2
or more : Try from +5°C.
2
paper with 92 to 105g/m
st
transfer roller is in pressed state
: Select 217 to 256g/m
: Select 92 to 105g/m
2
setting : Try +20°C setting.
2
setting : Try from +10°C.
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st
transfer roller
2
2
2