Sharp SF-1120, SF-1020 service manual High, Low

Trouble code	Sub code		Content				Condition
F1	00	Sorter communication error				•	An error occurred in communication between the sorter and
							the main unit.
	02	Transport motor trouble				•	During rotation of the transport motor, the rotation pulse is
							not sensed for 0.5 sec or more.
	04	Bin upper limit/lower limit trouble				•	When shifting the bins, the upper limit or the lower limit is
							erroneously sensed.
						•
	05	Bin home sensor trouble					When initializing the bins, the bin home sensor is not
							sensed within 1 sec.
	06	Bin motor trouble				•	During rotation of the bin motor, the rotation pulse is not
							sensed for 0.5 sec or more.
	14	Take-out sensor trouble				•	When the take-out sensor A/D input value is 3V or more.
	16	Grasping motor trouble				•	During rotation of the grasping motor, the rotation pulse is
							not sensed for 0.05 sec.
F2	31	Image density sensor trouble				•	When the light emitting quantity of the image density
							sensor is increased to the maximum level, the input value
							does not reach 3.75V.
						•	When the light emitting quantity of the image density
							sensor is decreased to the minimum level, the input value
							does not fall below 4.5V.
						• During execution of the grid voltage correction, the element
							level is 3V or lower.
	32	Drum mark sensor trouble				•	During one and a quarter rotations of the drum, the drum
							mark is not sensed (the sensor input does not become
							HIGH).
						•	The drum mark sensor input level is not in the specified
							range.
	33	Grid voltage correction trouble (Limit				•	When obtaining the grid voltage correction value, the result
		over)					of the patch voltage is not in the range of 200 ∼ 650V.
	35	Grid voltage correction trouble				•	When obtaining the grid voltage correction value, the patch
							voltage is not in the range of 200 ∼ 650V.
						• The grid voltage correction cannot be performed properly.
							(The correction value cannot be obtained.)
	37	Drum mark sensor gain adjustment				•	Though the drum mark sensor light emitting quantity is
		trouble					increased to 1.45V, the sensor input level does not become
							LOW.
EE	EU	Auto	developer	adjustment	under	•	After completion of the auto developer adjustment
		toner detection					(simulation 25-2), the toner density sensor input voltage is
							over the specified range. (Under toner)
	EL	Auto	developer	adjustment	over	•	After completion of the auto developer adjustment
		toner detection					(simulation 25-2), the toner density sensor input voltage is
							under the specified range. (Over toner)
CC		Original detection trouble				•	When the original detection sensor judgement level setting
							(SIM 41-2) is performed, the difference between the original
							presence level and the original empty level is too small.

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