Ricoh K-C3 - Display APS Data (SP 4301 1)

B245/B276/B277/B268/B269 Service Manual 18-Jan-06
173
is not very good.
The table lists the information shown with SP 2221 (ID Sensor Error Analysis).
SP Error condition Possible cause Remarks
SP 2221 1 Vsg
(VG in the display)
Vsg < 2.5V or
(Vsg – Vsp) < 1.00V
 ID sensor defective
 ID sensor dirty
 Drum not charged
SP 2221 2 Vsp
(VP in the display)
Vsp > 2.5V or
(Vsg – Vsp) < 1.00V
 Toner density very low
 ID sensor pattern not
created
SP 2221 3 Power
(PW in the display)
Vsg < 3.5V
when maximum
power (979) is
applied
 ID sensor defective
 ID sensor dirty
 Drum not get charged
Power source for the
ID-sensor light
SP 2221 4 Vsdp No Error Conditions
SP 2221 5 Vt Vt > 4.5V or
Vt < 0.2V
 TD sensor defective
SP 2221 6 Vts
Display APS Data (SP 4301 1)
- Sensor Positions -
The APS (auto paper select) sensors are arranged as shown in the diagram.
- Reading the Data -
Example 1
 Paper Size: 11000000 8
1
/
2
x13 
 DF Open: 1
Example 2
 Paper Size: 00110000 A4 
 DF Open: 0