Id Sensor Error Analysis (Sp2-221); Memory Clear - Ricoh S-C3 F Service Manual

5. Service Tables

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
5
(VP in the display)
SP2-221-3 Power
(PW in the display)
SP2-221-4 Vsdp
SP2-221-5 Vt
SP2-221-6 Vts

Memory Clear

GW Machine
The GW machine (the machine with the optional controller box) stores the engine data in the NVRAM on
the BICU, and stores the other data in the NVRAM on the optional controller. To distinguish between the
engine data and the other data, see SP5-801-003 through 015. This service program (SP5-801) handles
the controller data. Any data that is not handled by SP5-801 is the engine data. The data in the BICU
NVRAM (engine data) is cleared by SP5-998-001 while the data in the controller NVRAM (controller
data) is cleared by SP5-801-xxx (for exceptions, see "Exceptions" as described below).
Machine
Engine data
GW
218
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
-
Data NVRAM
BICU
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
-
Cleared by
SP5-998-001 Any data other than controller data
Remarks
-
-
Power source
for the ID-sensor
light
-
-
-
Remarks