Panasonic DP-C321, Service Handbook

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Chapter 3 Troubleshooting
3. 4. 4. 17 DC683 Regi Control Sensor Check Cycle
Function Checks the functions of the Regi Control Sensor. This is self-diagnostics cycle for
checking whether the detection system works properly.
• To check that the detection result is "Misregistration=zero", detects each misregistration
amount at IN/OUT using the C patch (single Cyan color), and displays the misregistration
amount detected by each sensor in the UI screen. Correction is not performed.
• Overview of Regi Control Sensor Check Cycle detection results
Reference Execution time: Approx. 15 sec.
Procedure
1. Select "Registration" tab on the Service Mode screen.
2. Select [
DC683 ] on the Registration screen.
3. The Regi Control Sensor Check Cycle screen is displayed.
4. Select [Execute].
5. In [Judgement],
OK is displayed: Complete
NG is displayed: Check the following causes and execute DC683 again.
• Sensor: Improper installation, failure
• Pattern: Density insufficient, Belt scratched
• Frame: Distortion
If the result is NG again, refer to FIP to repair the trouble.
6. Select [Close] to return to the Registration screen.
Displayed Data
Display
Range
Unit Remarks
Lateral misregistration
detected (IN/OUT) -500~+500 micron
Process misregistration
detected (IN/OUT) -500~+500 micron
Misregistration between
when the MOB sensor is
used for a center and when
the pattern is used for a
center (IN/OUT)
-500~+500 BLOCK Sensor is at the Center.
• If misregistration amount <- 500,
[-ERROR] is displayed.
• If misregistration amount >+500,
[+ERROR] is displayed.
• If the orientation of the
misregstration cannot be judged,
[ERROR] is displayed.
The causes of error display are shown below.
• Sensor: Improper installation, failure
• Pattern: Density insufficient, Belt scratched
• Frame: Distortion