Ricoh D084 MP2851 R-C5.5

Component	CN	PCB	State	Symptom
1st Bottom Fence Sensor 1	309-1	BCU	Open	The CPU cannot detect the paper size properly.
			Shorted
1st Bottom Fence Sensor 2	309-4	BCU	Open	The CPU cannot detect the paper size properly.
			Shorted
1st Bottom Fence Sensor 3	309-7	BCU	Open	The CPU cannot detect the paper size properly.
			Shorted
1st Paper End Sensor	307-1	BCU	Open	The Paper End indicator lights even if paper is placed in the 1st paper tray.
			Shorted	The Paper End indicator does not light even if there is no paper in the 1st paper tray.
1st Paper Height Sensor 1	310-1	BCU	Open	The CPU cannot determine the paper near-end condition properly.
			Shorted
1st Paper Height Sensor 2	310-4	BCU	Open	The CPU cannot determine the paper near-end condition properly.
			Shorted
1st Paper Lift Sensor	306-1	BCU	Open	SC501 displays.
			Shorted	Paper jam will occur during copying.
1st Side Fence Sensor	309-10	BCU	Open	The CPU cannot detect the paper size properly.
			Shorted
1st Tray Detect Sensor	309-13	BCU	Open	The CPU cannot detect the paper size properly.
			Shorted
2nd Bottom Fence Sensor	309-21	BCU	Open	The CPU cannot detect the paper
3			Shorted	size properly.
2nd Bottom Fence Sensor	309-15	BCU	Open	The CPU cannot detect the paper
1			Shorted	size properly.
2nd Bottom Fence Sensor	309-18	BCU	Open	The CPU cannot detect the paper
2			Shorted	size properly.
2nd Paper End Sensor	308-1	BCU	Open	The Paper End indicator lights even if paper is placed in the 2nd paper tray.
			Shorted	The Paper End indicator does not light even if there is no paper in the 2nd paper tray.
2nd Paper Height Sensor 1	310-7	BCU	Open	The CPU cannot determine the paper near-end condition properly.
			Shorted
2nd Paper Height Sensor 2	310-10	BCU	Open	The CPU cannot determine the paper near-end condition properly.
			Shorted
			Open	SC502 displays.
2nd Paper Lift Sensor	306-2	BCU	Shorted	Paper jam will occur during copying.
2nd Side Fence Sensor	309-24	BCU	Open	The CPU cannot detect the paper
			Shorted	size properly.
2nd Tray Detect Sensor	309-27	BCU	Open	The CPU cannot detect the paper
			Shorted	size properly.
APS Sensor 1: Original	223-1	SIO	Open	The CPU cannot detect the original size properly. APS and ARE do not function correctly.
Width			Shorted
APS Sensor 2: Original	223-4	SIO	Open	The CPU cannot detect the original size properly. APS and ARE do not function correctly.
Width			Shorted

Note

• An SC condition occurs only when a new PCU is being installed in the machine. During copying, if the ID sensor fails, the image density will be changed.