Drum Driving Sleep Mode - Toshiba e-STUDIO 2555C Service Manual

3.12.4

Drum driving sleep mode

When the conditions of the accumulated number of outputs are met, the equipment is shifted to the
drum driving sleep mode, in which the photoconductive drum is rotated without exposure several times.
This mode prevents the photoconductive drum from being contaminated with ozone exhausted inside
of the equipment.
[ 1 ] Function
In the standby mode, the photoconductive drum is rotated without exposure according to the specified
number of times. The more rotations without exposure increase, the more drive count increases.
Consequently, this may reduce the life of the drum.
To prevent a reduction in the life, the drum is rotated without exposure normally once. It is rotated
without exposure several times only under certain conditions.
[ 2 ] Drum driving sleep mode related codes
08-2380 Control for drum rotation without
exposure at standby
08-2381 Starting time of drum rotation
without exposure at standby
08-2382 Control of drum rotation without
exposure at standby: Rotation
interval
08-2383 Control of drum rotation without
exposure at standby: Maximum
number of rotations
08-2385 Accumulated number of outputs to
shift to drum driving sleep mode
[ 3 ] The drum driving sleep mode setting
[ 3-1 ] Case in which the equipment needs to be shifted to the drum driving sleep mode
frequently
When uneven density image problem in 94 mm pitch (the circumference of the drum) must be corrected
• Set a value smaller than "7" (default) for 08-2385.
Notes:
If MCV (monthly copy volume) is relatively small, the drive count tends to increase quickly when
you set the equipment to shift the drum driving sleep mode often, resulting in a shorter life
[ 3-2 ] Case in which the equipment needs to be shifted to the drum driving sleep mode
frequently
A: When uneven density image problem in 94 mm pitch (the circumference of the drum) must be
corrected
• The ozone exhaust fan keeps rotating for 1 minute after printing is finished. The rotation noise is not
so annoying during this period. Therefore set "0" or "1" for 08-2383 so that the rotation of all drums
without exposure will be finished within 1 minute.
B: When MCV is relatively small (e.g.; 1k)
• Set "20" for 08-2385 to reduce the number of times to shift the drum driving sleep mode, or set "0" or
"1" for 08-2383 to reduce the number of drum rotations without exposure.
e-STUDIO2555C/3055C/3555C/4555C/5055C
OUTLINE OF THE MACHINE
Sets ON or OFF for the control of the
photoconductive drum rotation without exposure in
the standby mode after printing is finished.
Sets the time to start the 1st rotation of the
photoconductive drum without exposure in the
standby mode after printing is finished.
Sets the rotation interval of the photoconductive
drum without exposure between the 1st and 2nd
rotations and subsequent intervals.
Sets the maximum number of rotations allowed
without exposure.
Sets the number of outputs to shift to the drum
driving sleep mode.
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