Canon imageRUNNER ADVANCE C350 series Service Manual page 840

COPIER> ADJUST> IMG-REG
LSR-V-K1 Adj Bk wrt start pstn:vert scan, 1st sht
Lv.2 Details To adjust the write start position of Bk-color image in vertical
scanning direction when color displacement occurs only with the
image on the 1st sheet.
As the value is changed by 1, Bk-color image moves by 1 pixel.
+: Move in the trailing edge direction
-: Move in the leading edge direction
Since image formation is performed based on Y-color, adjust the
position of M/C/Bk-color even if it seems that color displacement
occurs only with Y-color.
Use case When color displacement occurs only on the 1st sheet
Adj/set/operate method Enter the setting value (switch negative/positive by -/+ key) and
press OK key.
Caution Use this mode only when color displacement occurs on the 1st
sheet.
Display/adj/set range -5 to 5
Unit 1 pixel
Appropriate target value 0
Default value 0
Related service mode COPIER> ADJUST> IMG-REG> LSR-V-M1/C1
ITBDRBL1 For R&D
BEND-C C-color laser distortion crrct:vert scan
Lv.1 Details To correct distortion of C-color laser in vertical scanning direction.
(Digital registration)
As the value is incremented by 1, degree of distortion is changed by
1 micro m with reference to Y-color.
Use case When distortion occurs in vertical scanning direction
Adj/set/operate method 1) Enter the setting value (switch negative/positive by -/+ key) and
press OK key.
2) Output a test print in COPIER> TEST> PG> TYPE> 6 (Grid).
3) Perform visual check, and repeat the procedures as needed.
Display/adj/set range -100 to 100
Unit 1 um
Default value 0
8
Service Mode > COPIER > ADJUST > IMG-REG
8 Service Mode > COPIER > ADJUST > IMG-REG
COPIER> ADJUST> IMG-REG
SLOP-Y Adjustment of image squareness
Lv.2 Details To adjust skew of image (squareness) in vertical scanning direction
by adjusting skew of Y-color laser in vertical scanning direction
digitally.
By performing auto color displacement correction after this
adjustment, adjustment is made for other colors in accordance with
adjustment for Y-color.
Use case When corners of an image are not square
Adj/set/operate method 1) Enter the setting value, and then press OK key.
2) Turn OFF/ON the main power switch.
3) Execute auto color displacement correction.
Caution Be sure to perform auto color displacement correction after
adjustment.
If the setting value is changed dramatically, be sure to perform auto
color displacement correction twice.
Display/adj/set range -84 to 84
Unit 1 um
Default value 0
Related UI menu Adjustment/Maintenance> Adjust Image Quality> Auto Correct Color
Mismatch
8-70
T-8-18
8-70