Process Control Error Conditions
D037/D038/D040/D041 5-2 SM Appendix
No. Result Description Possible Causes/Action
Vcnt is less than 4.7V
when Vcnt is Vt target
±0.2V.
2. Defective TD sensor
9 Vcnt error 3 Vcnt is less than 4.7V.
1. Make sure that the heat seal on the
development unit is not removed
2. Defective TD sensor
3. Vt target settings are not correct.
4. Toner density error
The machine starts developer initialization after you set “1” in SP3-902-005, 006,
007, or 008. Developer initialization automatically resumes when you open and
close the front door or turn the main switch off and on if an error other than Error 8
occurs.
5.1.2 PROCESS CONTROL SELF-CHECK RESULT
Displayed number shows results of each color sensor check.
00000000 = YYCCMMKK
SP3-012-001 to -010 (Process Control Self-check Result)
No. Result Description Possible Causes/Action
11
Successfully
completed
Process control
self-check
successfully
completed.
Check the Vsg adjustment. See the "Vsg
Adjustment Result" following this table.
41 Vt error
Vt maximum or
minimum error is
detected.
Defective development unit
Vt maximum error and an image is faint:
1. Replace the toner hopper unit.
Vt maximum error and an image is O.K:
1. Replace the development unit.
2. Replace the BCU board.
Vt minimum error:
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