Canon imageRUNNER ADVANCE C3330 Series Service Manual page 93

Correction description
Correction in horizontal scanning direc-
tion
Correction in vertical scanning direction Write start correction
Related Alarm Code
There is no color displacement alarm for Y because Y is the reference for the laser light.
• 34-0003 : Auto registration adjustment
• 34-0024 : The correction value (M) of the write start position in the vertical scanning direction exceeded the upper
limit during color fine adjustment
• 34-0026 : The correction value (M) of the write start position in the horizontal scanning direction exceeded the
upper limit during color fine adjustment
• 34-0034 : The correction value (C) of the write start position in the vertical scanning direction exceeded the upper
limit during color fine adjustment
• 34-0036 : The correction value (C) of the write start position in the horizontal scanning direction exceeded the upper
limit during color fine adjustment
• 34-0044 : The correction value (Bk) of the write start position in the vertical scanning direction exceeded the upper
limit during color fine adjustment
• 34-0046 : The correction value (Bk) of the write start position in the horizontal scanning direction exceeded the
upper limit during color fine adjustment
• 34-2201 : As a result of wrong detection processing, data that can be used for correction in the vertical scanning
direction was not found (M)
• 34-2211 : As a result of wrong detection processing, data that can be used for correction in the horizontal scanning
direction was not found (M)
• 34-2301 : As a result of wrong detection processing, data that can be used for correction in the vertical scanning
direction was not found (C)
• 34-2311 : As a result of wrong detection processing, data that can be used for correction in the horizontal scanning
direction was not found (C)
• 34-2401 : As a result of wrong detection processing, data that can be used for correction in the vertical scanning
direction was not found (Bk)
• 34-2411 : As a result of wrong detection processing, data that can be used for correction in the horizontal scanning
direction was not found (Bk)
NOTE:
:
● Patch Sensor Adjustment
Purpose
To perform correction of the Patch Sensor light intensity and sampling of the ITB background.
Configuration of the Patch Sensor
The light produced by the LED is reflected from the patch image and detected by the light-receiving element.
There are two types of waves that are P wave and S wave, and the light intensity is detected by the light-receiving element.
Type of control
Write start correction
Overall magnification ratio correction
Image skew correction
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2. Technology
Correction description
Write-start timing in horizontal scanning
direction is changed.
Pixels in horizontal scanning direction is
increased/reduced (at the both edges of
the image)
Write-start timing in vertical scanning di-
rection is changed.
Image data is corrected.