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COPY QUALITY
12 February 1992
2.15 A HORIZONTAL THIN LINE APPEARING CLOSE TO THE LEADING
EDGE
- Phenomenon -
When an original has black solid areas at the trailing
edge, toner transferred from the trailing edge onto the
hot roller will appear on the next copy paper.
- Action -
Set SP157 (trail edge erase) to leave a blank margin on
the trailing edge of copies.
(The blank margin can be adjusted from 0 to 4 mm in 0.5
mm steps when the lead edge registration is adjusted to 0 mm.)
2.16 CREASING AFTER FUSING
- Phenomenon -
Under high humidity conditions, humidified copy paper creases as it comes
out of the fusing unit.
- Action -
Install an optional tray heater on each paper feeding station. Refer to "Tray
heater installation" in section 3.
(The tray heater is available as a service part.)
2.17 Z-FOLDED COPY OR LEAD EDGE REGISTRATION VARIES
- Phenomenon -
Copies are folded like "Z" shape at the leading part.
The variation of lead edge registration is too big.
- Action -
Adjust the paper buckle amount between the registration
rollers and the upper relay rollers (or feed & separation
rollers) by SP mode for each paper feeding station.
SP150:By-pass feed/LCT
SP151:Upper paper tray
SP152:Lower paper tray and paper tray unit
6-22
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