Konica Minolta magicolor 7450, Service Manual

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Field Service Ver. 1.0 May 2006 14. Service call message
189
magicolor 7450
T
roubleshooting
0960 Manual Tray Rise Descent Error • The Bypass Lift-Up Sensor is not blocked even when the
Tray 2 Vertical Transport Motor has turned for a given
number of pulses after the sequence to move the Paper
Lifting Plate from the standby position to the feed position
was started.
• The Bypass Lift-Up Sensor is not unblocked even when
the Tray 2 Vertical Transport Motor has turned for a given
number of pulses after the sequence to move the Paper
Lifting Plate from the feed position to the standby position
was started.
0F30 Abnormally low toner density
detected Cyan TCR Sensor • TC ratio in the developing machine, which is determined
by Toner replenishing amount control mechanism, is 5 %
or less for a given number of times consecutively.
0F31 Abnormally high toner density
detected Cyan TCR Sensor • TC ratio in the developing machine, which is determined
by Toner replenishing amount control mechanism, is 12
% or more for a given number of times consecutively.
0F32 Abnormally low toner density
detected Magenta TCR Sensor • TC ratio in the developing machine, which is determined
by Toner replenishing amount control mechanism, is 5 %
or less for a given number of times consecutively.
0F33 Abnormally high toner density
detected Magenta TCR Sensor • TC ratio in the developing machine, which is determined
by Toner replenishing amount control mechanism, is 12
% or more for a given number of times consecutively.
0F34 Abnormally low toner density
detected Yellow TCR Sensor • TC ratio in the developing machine, which is determined
by Toner replenishing amount control mechanism, is 5 %
or less for a given number of times consecutively.
0F35 Abnormally high toner density
detected Yellow TCR Sensor • TC ratio in the developing machine, which is determined
by Toner replenishing amount control mechanism, is 12
% or more for a given number of times consecutively.
0F36 Abnormally low toner density
detected Black TCR Sensor • TC ratio in the developing machine, which is determined
by Toner replenishing amount control mechanism, is 4 %
or less for a given number of times consecutively.
0F37 Abnormally high toner density
detected Black TCR Sensor • TC ratio in the developing machine, which is determined
by Toner replenishing amount control mechanism, is 12
% or more for a given number of times consecutively.
0F3A Cyan TCR Sensor adjustment
failure • TCR Sensor automatic adjustment does not function
properly, failing to adjust to an appropriate value.
0F3B Magenta TCR Sensor
adjustment failure
0F3C Yellow TCR Sensor adjustment
failure
0F3D Black TCR Sensor adjustment
failure
13B0 RTC failure • When correct access to the RTC Board is failed during
access.
13C8 Transfer Unit New Article
Release • A new installation is not detected when a new Transfer
Cleaner Unit (Image Transfer Belt Unit) is installed.
13CA Fusing Unit New Article Release • A new installation is not detected when a new Fusing
Unit is installed.
13D0 Trouble related to Security • Contact the responsible people of KONICA MINOLTA
before taking some countermeasures.
Code Item Description