Id Sensor Error Analysis (Sp2-221) - Ricoh Aficio MP201SPF Service Manual

Using SP Mode

5.2.7 ID SENSOR ERROR ANALYSIS (SP2-221)

The image quality may become very bad when the ID sensor does not operate properly.
However, there is no such SC code that indicates ID-sensor malfunction; instead, SP2-221
shows you some information on the ID sensor. Check this information when the image quality is
not very good.
The table lists the information shown with SP2-221 (ID Sensor Error Analysis).
SP
SP2-221-1 Vsg
(VG in the display)
SP2-221-2 Vsp
(VP in the display)
SP2-221-3 Power
(PW in the
display)
SP2-221-4 Vsdp
SP2-221-5 Vt
SP2-221-6 Vts
D115/D116
Error condition
Vsg < 2.5V or
(Vsg – Vsp) < 1.00V
Vsp > 2.5V or
(Vsg – Vsp) < 1.00V
Vsg < 3.5V
when maximum
power (979) is
applied
No Error Conditions
Vt > 4.5V or
Vt < 0.2V
-
Possible cause
ID sensor defective
ID sensor dirty
Drum not charged
Toner density very low
ID sensor pattern not
created
ID sensor defective
ID sensor dirty
Drum not get charged
TD sensor defective
-
5-18
Remarks
-
-
Power source
for the
ID-sensor
light
-
-
-
SM