SERVICE PROGRAM MODE
B079/B082 5-14 SM
SP2 Mode Number Function and [Setting]
Main Scan Magnification
1* Copier Adjusts the magnification in the main scan direction
for copy mode.
Press to toggle ±.
[–2.0 ~ +2.0 / 0 / 0.1% step]
2909*
2* Printer Adjusts the magnification in the main scan direction
when printing from a personal computer. Press
to toggle ±.
[–2.0 ~ +2.0 / 0 / 0.1% step]
Transfer Current On/Off Timing Adjusts the transfer current timing for the three
items below.
1 La (On Timing) On timing at leading edge.
[–30 ~ +30 / 0 mm / 1 mm step]
2 Lb (Switch Timing) Transfer current switch timing. This determines
when the leading edge stops and the image area
current begins (see SP2-301).
[0 ~ +30 / 10 mm / 1 mm step]
2911
3 Lc (Off Timing) Transfer current timing (e.g. –5 mm) is 5 mm after
the trailing edge.
[–30 ~ +30 / – 5 mm / 1 mm step]
2912 1
Drum Reverse Rotation
Interval
DFU.
2913*
1* Print Density for Test
Pattern
Sets the print density for the patterns printed with
SP2-902-3.
[0 ~ 15 / 15 / 1 ]
Process Control Setting – By-
pass
Adjusts the charge roller voltage for the following
items.
1*
Cα
Adjusts the charge roller voltage used when paper
with a small width is fed from the by-pass tray. The
paper width below which the correction starts
depends on the value of SP2-309-1.
Use this SP when an image problem (such as white
spots at the center of black dots or breaks in thin
black lines) occurs when paper with a small width is
fed from the by-pass feed tray.
[0 ~ 400 / 150 / 10V step]
2*
Cβ
Adjusts the charge roller voltage used when paper
with a small width is fed from the by-pass tray. The
paper width below which the correction starts
depends on the value of SP2-309-2.
Use this SP when an image problem (see 2-914-1)
occurs when paper with a small width is fed from
the by-pass feed tray.
[0 ~ 400 / 0 / 10V step]
2914*
3*
Bγ
Adjusts the development bias used when paper
with a small width is fed from the by-pass tray. The
paper width below which the correction starts
depends on the value of SP2-309-1.
Use this SP when an image problem (see 2-914-1)
occurs when paper with a small width is fed from
the by-pass feed tray.
[0 ~ 300 / 200 / 10V step]
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