B245/B276/B277/B268/B269 Service Manual 18-Jan-06
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current if toner remains on the roller after cleaning. (Remaining toner may cause
dirty background on the rear side.) (
p.248)
2802
Forced Developer Churning
2802 1
Initializes the developer and checks the TD sensor output (Vt). The machine
mixes the developer for 2 minutes while reading and displaying the Vt value.
The machine does not initialize the TD sensor output. If the machine has not
been used for a long period of time, prints may have a dirty background. In this
case, use this SP mode to mix the developer. The message "Completed" is
displayed when the program ends normally.
2906*
Tailing Correction
Shift value
[0.0 ~ 1.0 / 0.0 / 0.1 mm/step]
2906 1
Shifts the image writing position in intervals specified by SP 2906 2. When
making many copies of an original that contains vertical lines (such as in tables),
the paper may not separate correctly. This can cause tailing images (ghosts of
the vertical lines continuing past the bottom of the table). This SP can be used to
prevent this.
Interval
[1 ~ 10 / 1 / 1 page/step]
2906 2
Changes the interval for the image shift specified by SP 2906 1.
2908
Forced Toner Supply
2908 1
Forces the toner bottle to supply toner to the toner supply unit. Press “1” to start.
The machine continues to supply toner until the toner concentration in the
development unit reaches the standard level, or for up to 2 minutes (whichever
comes first).
2915*
Polygon Mirror Motor Idling Time
2915 1
[0 = None / 1 = 15 s / 2 = 25 s]
Selects the polygon mirror motor idling time. To increase the speed of the first
copy, the mirror motor begins idling when the user sets an original, touches a
key, or opens the platen cover or DF. If this setting is left at the default (15 s), the
motor will stop if the user does nothing for 15s. If the setting is “0”, the motor will
not switch off during standby. (But note that regardless of the setting, the motor
will switch off when the machine enters energy saver mode.)
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