Canon MultiPASS C530 Service Manual page 165

MultiPASS C530/C560 Chapter 3: Maintenance & Service
⇐Misalignment Direction : "LEFT"
2 dot
d) Correction procedure
The misaligned vertical lines in the middle, shown in Fig. 3-6 , are described below.
(1) Check the correction direction for the 2nd line, and check the dot count. (In the example, a 2-dot
correction to the right is necessary.)
(2) Determine the dot count required for the correction.
In SHQ, the dot count is roughly 4.55 times. (E.g., 2 × 4.55 = 9)
In HQ, the dot count is roughly 2.86 times.
In HS, the dot count is 2 times.
(3) As shown in Fig. 3-7 , make the correction for all print mode. (The flowchart shows the procedure for
making a 2-dot correction to the right for the all print mode, respectively. The actual display may
look different from the figure.)
(4) After making the correction, print out the test pattern. If there is any misalignment, do the correction
again.
Example: A 2-dot correction on the right is necessary
Figure 3-6 Sample Test Pattern with Vertical Misalignment
NOTE
1 dot
0 dot
Center
Figure 3-5 Correct Test Pattern
(E.g., 2 × 2 = 4)
Center
All registration defaults are 0.
SHQ2 mode is not used in this model.
Misalignment Direction : "RIGHT"⇒
1 dot 2 dot
(E.g., 2 × 2.86 = 6)
3-8
Printout of 1st line
Printout of 2nd line
Printout of 3rd line
Printout of 1st line
Printout of 2nd line
Printout of 3rd line