Adjustment Of Image Registration - Canon imagePRESS C800 Series Technical Workbook

T E C H N I C A L W O R K B O O K

Adjustment of Image Registration

First, all Image Position Adjustments are referenced to Magenta. So, first make certain that Magenta
Image Quality is at its best in this regard. Next, the levelness of the floor can negatively affect the Image
Positon. If the engine is moved even a few inches it can affect Image Registration. The Image
Registration and Position Adjustments are executed based on the premises that the Media or Paper is cut
to the appropriate size and is square. It is also based on the foundation that the four (4) corners of the
paper are at a right angle.
The subsequent Medias are recommended for the Image Registration Adjustment: 1
• GF-C081 81.4 g/m
• OK Top Coated + 128 g/m
• Hammermill Color Copy Digital 28lb 105 g/m
• CANON-OCE TOP COLOR 100 g/m
It is also acceptable to use Media which an End User utilizes frequently to perform the Image Position
Adjustment.
IMPORTANT!
Do not use Recycled Paper, Textured Paper, or Vellum Paper. Variation in feed
performance is more likely to occur with these type Medias. Use of these type
media can result in a flawed Image Position Adjustment.
When performing the Image Registration Adjustments Canon U.S.A., Inc. strongly recommends
performing the subsequent Procedures:
• Standard Value Of Left Edge Margin (Mechanical Adjustment for Cassette, Execute with all paper
sources)
• Standard Value of Leading Edge Skew
•
Standard Value of Leading Edge Right angle (based on an assumption that right angle accuracy of paper is
correct)
• Standard Value of Trapezoid
• Magnification Ratio in Horizontal Scanning Direction
• Magnification Ratio in Vertical Scanning Direction
•
Standard Value of Left Edge Margin/Leading Edge Margin (1st side/2nd side: Software Adjustment)
1 For the detailed procedure for the Image Registration Adjustment, please reference the Adjustment for Image Registration
in the Appendix, or in the imagePRESS C800 Series Service Manual, Chapter 9, Installation > Installing the Host
Machine > Image Position Adjustment > Checking/Adjusting.
2
2
2
2
2