| Quote: | | | | | | | |
|  Kindly help me for the call code?
What is the suspected part and to be done? | |
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F45-20 Color registration correction results in abnormality.
Printer control board (PRCB)
Color registration sensor /F (PS8)
Color registration sensor /R (PS9)
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(8) Auto. color registration adjustment
Make this adjustment when there is a color registration error. The main scan, sub-scan, horizontal magnification and the skew of color registration
error are automatically adjusted.
This adjustment can be shown in the key operator mode by setting the DIPSW12-1 to 1.
Note:
• This auto. color registration adjustment has a larger correction area than that of the color registration auto correction in the user mode.
So, be sure to perform this adjustment when a SC45-20 occurs.
a. Procedure
1. Enter the 36 mode. Turn on main power switch while holding both keys 3 and 6 on control panel. Keep holding these keys until the screen changes to show you 36 mode.
2. "36 mode menu screen" Press the [2. Image adjustment] key.
3. "Image adjustment mode menu screen" Press the [2. Timing adjustment] key.
4. "Timing adjustment menu screen" Press the [8. Auto. color registration adj.] key.
5. "Color registration adj. screen" Press the [Start] key.
6. The color registration adjustment starts and a message "Complete" is shown in about 2 minutes. When the error message appears, perform an
error correction referring to the below.
• Error 1: It does not converge within the standard
value. The patch density may be too light. Check around the drum unit and perform the gamma automatic adjustment (0). Then perform this adjustment.
• Error 2: The difference of the color registration is too much.
• Error 3: The other error SC other than the color registration
automatic adjustment may occur.
Cycle main power after adjustment, close main door to check for SC code recurrence. Normally, this should be fine at this point.
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If the machine continues to throw this code, mrwho has indicated where to look regarding registration sensors described at the top of my post. The attached files shows you what to look for and how to gain access to the sensor assembly. Make sure you turn main power off before removing process carriage assembly.
While you have the process carriage out, be sure to inspect the transfer belt on the carriage unit for damage. You might even have a piece of paper stuck to the belt by electrostatic charge.
If the code doesn't go away after verifying that everything visually looks ok, the sensor assembly might be defective, or the printer control board might be defective.
Linear Mode
