Ricoh SP C440dn, Field Service Manual, Page: 615 / 654

• The machine starts developer initialization after you set “Enable” 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.
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 supply pump unit.
Vt maximum error and an image is O.K:
1. Replace the development unit.
2. Replace the IOB board.
Vt minimum error:
1. Replace the development unit.
2. Replace the IOB board.
53
ID sensor
coefficient (K5)
detection error Not enough data can be
sampled. • Solid image is not sufficient density:
1. Retry the process control.
2. Replace the ID sensors.
3. Replace the IOB board.
• Solid image is O.K.
1. Replace the ID sensors.
2. Replace the IOB board.
• ID sensor is dirty:
1. Clean the ID sensors.
2. Retry the process control.
Process Control Results
613