Ricoh Aficio MP 1600L2, Field Service Manual

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ID Sensor Error Analysis (SP 2221)
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, SP 2221 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 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.
Using SP Modes
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