Panasonic Workio DP-C401, Service Handbook

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Chapter 3 Troubleshooting
3. 4. 4. 20 DC921 ATC Sensor SetUp (Color Image Control)
Function Sets the correction value "ATC Correction Coefficient" and "ATC Correction Offset" to
correct each sensor at factory shipment and ATC sensor replacement.
• By inputting the characteristics value to be attached to each sensor, and by inputting "skew of
each sensor sensitivity" and "output of each sensor at standard TC", sets up the correction
values "ATC Correction Coefficinet" and "ATC Correction Offset".
• Outline of Characteristic Values
Procedure
1. Select the "Color Image Ctrl" tab on the Service Mode screen.
2. Select [
DC921 ] on the Color Image Ctrl screen.
3. The TC/ATC Sensor Setup screen is displayed.
4. In the [Color (Y/M/C/K) of replaced TC sensor], check the sensors replaced.
5. In [Initial value Measurement & Judgement], input the value of [Sensitivity Gradient Initial
Value] and [Std. TC initial value].
How to obtain the input data
Convert the bar code No. (last 2 digits) attached to each sensor using the Comparison
Table into the data to input. (For the Comparison Table, refer to Chapter 2 ADJ1.1.6.)
6. Select [Execute].
7. Select [Close] to return to the Color Image Ctrl screen.
Items Input Number
Setup
Range
Outputs of each sensor at the standard TC (Y, M, C, K)
Display: Initial value of output at standard TC Input
Value 4 0~1023
Skew of each sensor sensitivity (Y, M, C, K)
Display: Initial values of sensitivity skews Input
Value 4 0~32767
For detailed procedure, refer to Chapter 2 ADJ1.1.6.