Aficio MP1900 - ID Sensor Error Analysis (SP 2221); Memory Clear

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
Memory Clear
This machine stores all the data in the NVRAM on the BICU. The data is cleared by SP 5801 2 (see
exceptions)
002 Main Motor Reverse
003 Quenching Lamp
Data NVRAM Cleared by Remarks
All data BICU SP 5801 2
- Exceptions -
5. Service Tables
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