20 June 2005 SERVICE PROGRAM MODE TABLES
5-13
Service
Tables
2902 Test Pattern
IPU Test Pattern Pattern 0 ~ 15 (5.2.4) 2902 2
Prints the test patterns for the IPU chip.
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.
Printing Test Pattern Pattern 0 ~ 38(5.2.4) 2902 3
Prints the printer test patterns. Select the number of the test pattern that you want
to print.
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.
Main Scan Magnification 2909*
Adjusts the magnification in the main scan direction for copy mode and printer
mode. Press to toggle ±.
2909 1* Copier [–2.0 ~ +2.0 / 0 / 0.1% step]
2909 2* Printer [–2.0 ~ +2.0 / 0 / 0.1% step]
2911
Transfer Current On/Off Timing
La (On Timing) [–30 ~ +30 / 0 mm / 1 mm step]
2911 1
Adjusts the transfer current on timing at leading edge.
Lb (Switch Timing) [0 ~ +30 / 10 mm / 1 mm step]
2911 2
Adjusts the transfer current switch timing. This determines when the leading edge
stops and the image area current begins (see SP2-301).
Lc (Off Timing) [–30 ~ +30 / – 5 mm / 1 mm step]
2911 3
Adjusts the transfer current off timing. (e.g. –5 mm is 5 mm after the trailing edge.)
2912*
Drum Reverse Rotation Interval
DFU
Print Density for Test Pattern [0 ~ 15 / 15 / 1]
2913*
Sets the print density for the patterns printed with SP2-902-3.
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