SERVICE PROGRAM MODE 26 January, 2001
5-12
SP2 Mode Number Function and [Setting]
2802* TD Sensor Manual Setting Allows you to adjust the TD sensor output manually
for the following.
1* VTS Adjusts the TD sensor output (VT).
Change this value after replacing the development
unit with another one that already contains toner.
For example, when using a development unit from
another machine for test purposes. To adjust VT,
use a similar procedure as for SP2-220.
[1.00~5.00V / 4.78V / 0.02V step]
2* VTMAX Adjusts the maximum value for SP2-802-1.
[1.00~5.00V / 4.78V / 0.02V step]
3* VTMIN Adjusts the minimum value for SP2-802-1.
[1.00~5.00V / 1.00V / 0.02V step]
2805 Developer Initialization
Performs the developer initialization. Press 1 to
start.
This SP should be performed after doing SP2-801-
1 at installation and after replacing the drum.
2902 2 IPU Test Pattern Prints the test patterns for the IPU chip. (☛ 5.1.3)
[0~15 / 0 / 1 step]
This SP mode is useful for finding whether the
BICU or the SBU is defective. If the printout is not
OK, the BICU is defective.
3 Printing Test Pattern
Prints the printer test patterns. Select the number of
the test pattern that you want to print. (☛ 5.1.3)
[0~38 / 0 / 1 step]
This SP mode is useful for finding whether the
LDDR or the BICU is defective. If the printout is not
satisfactory, the LDDR is defective.
[0~38 / 0 ]
2909* Main Scan Magnification
1* Copier Adjusts the magnification in the main scan direction
for copy mode.
Press ! to toggle ±.
[–2.0~+2.0 / 0 / 1% step]
2* Printer Adjusts the magnification in the main scan direction
when printing from a personal computer. Press !
to toggle ±.
[–2.0~+2.0 / 0 / 1% step]
2911 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]
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.
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