Image Stabilization Control Main Unit Theory of Operation
2-120
II Composition/Operation
17.1.3 Image stabilization control execution request
• A request for execution of the complete correction control or simplified correction control
is made at the following timing.
*1: Since the machine is not provided with a function that detects a new Transfer Belt Unit,
Engine/Engine Service/Calibration must be selected and complete correction control
executed whenever the unit has been replaced with a new one.
*2: See the following for the conditions that enable execution of the stabilization control at
the end of a print cycle of given conditions.
17.1.4 Conditions enabling execution of stabilization control at the end of a print
cycle of given conditions
• The time equivalent to the number of printed pages produced by each TC is counted
after the execution of the last image stabilization sequence.
• The equivalent time counter of all TCs is reset after the execution of the image stabiliza-
tion sequence.
A. Calculation of equivalent printed page time
• The period of time through which the Developing Unit is driven is used for the equivalent
printed page time.
• Half of the Developing Unit driving time involved with 2P/J is one printed page time.
Stabilization request timing
Stabilization request
detection timing
Execution processing
Upon
replace-
ment of unit
When a new TC is detected When the Power Switch is
turned ON
Complete correction
control
When the Transfer Belt Unit is
replaced
*1
When the Front/Right Door is
closed
Complete correction
control
By machine
status
When the Power Switch is
turned ON
Power the Switch is turned
ON
Simplified correction
control
When there is a change in
environmental conditions
from those when the last sta-
bilization sequence was exe-
cuted
At the end of a job
At the end of a print cycle of
given conditions
*2
At the end or during a job
When a malfunction is reset • When the Power Switch is
turned ON
• When the Front/Right Door
is closed
When simplified correction
control is executed
After simplified correction
control is executed
Gamma correction con-
trol, registration correction
control, or complete cor-
rection control
When the temperature of the
print head unit changes over
the specified range from the
one at the previous stabiliza-
tion.
Always Register adjustment
control
User
selection
When Engine/Engine Ser-
vice/Calibration is selected
When Engine/Engine Ser-
vice/Calibration is selected
Complete correction
control
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