Waste Toner Near-Full/Full Detection Control - Konica Minolta bizhub c450 Service Manual

Theory of Operation Ver. 1.0 Mar. 2005
15.3.3

Waste Toner Near-Full/Full detection control

A. Waste toner near-full detection control
• An optical sensor is used to detect waste toner. When the sensor is blocked for a given
period of time, the machine determines that the Waste Toner Bottle is nearly full of waste
toner.
• At this time, a corresponding warning (near-full warning) is given on the control panel.
• To prevent false detection, an Agitation Screw is mounted in the Waste Toner Bottle so
that the waste toner is accumulated in the bottle evenly.
B. Waste toner full detection control
• At the same time that the waste toner near-full condition has been detected, the counter
exclusive for the waste toner inside of the machine starts counting. When the counter
reaches about 8k, the machine determines that the Waste Toner Bottle is full and stops
operation.
• Counting method of the counter exclusive for the waste toner is corrected to count the
value appropriately according to the color or monochrome mode or paper length.
• After the Waste Toner Bottle has been replaced and the Waste Toner Full Sensor has
been unblocked for a given period of time, the machine cancels the copying-disabled
condition, while at the same time automatically clearing the counter exclusive for the
waste toner.
Waste Toner Bottle
Agitating
Screw
Before Near-Full Condition
is Detected
Waste Toner
• A different toner full warning screen is displayed if "User" is selected for "Unit Change"
available from the Tech. Rep. mode.
Waste Toner Full
Sensor (PC31)
4036ma2028c1
Near-Full Condition
Detected
4036ma2182c0
15. Toner Collecting section
Near-Full Condition Warning Display
Full Condition Warning Display
4036ma2524c0
4037T2E603AA
4037T2E604AA
65