Originally Posted by
teckat
0292= is a magenta issue
XX92 A computation result of patch reading in patch detection is less than 42 for Y/M/ C and less than 73 for Bk 3 times in succession.
Check for>>
damage to patch image read sensor, poor rotation of developing sleeve, poor engagement of developing
assembly, poor stirring of toner inside developing assembly (damage to toner stirring screw or feedscrew)
Check on attachment of the developing unit, Replace the patch image reading sensor, Replace the developing unit.
the machine does not check the ATR sensor for soiling, the sensor is equipped with a shutter to prevent soiling; the shutter opens only when the ATR sensor measures the developer density on the developing cylinder and remains closed at other times.
what schematics ??
u mean the Service Manual ??
is your service tech Canon Trained on color ??
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