Iqs 1 Registration And Skew - Xerox ColorQube 9303 Series Service Manual

IQS 1 Registration and Skew

Image Registration
Table 1 lists the registration specifications of the DADH, IIT and IOT.
Table 1 Registration Specifications
Document
Registration Glass DADH
± 2.1 mm ± 2.6 mm
Process direction
± 2.6 mm ± 4.1 mm
Cross-process
Skew
To measure skew use this formula, Figure
Skew (mrads) = Leading edge margin at rear corner (1) minus leading edge margin at front
corner (2) divided by (media width - 8.6 mm) multiplied by 1000.
Refer to Table 2 for the skew specifications in mrads.
Table 2 Skew Specifications (mrads)
Document
Glass DADH
Skew specification ± 6.2 mrad ± 9.0 mrad
• Skew for envelopes will exceed the limits stated.
• Skew for A5 / 8.5 x 5.5 shall be +/- 10 mrads.
Table 3 lists the skew specifications (mm) for the standard paper sizes.
Table 3 Skew Specifications (mm)
Media Size Document
Media (mm) Glass
± 1.79 mm ± 2.6 mm
A4 long edge 297 mm
± 1.25 mm ± 1.81 mm ± 1.09 mm ± 0.62 mm ± 1.45 mm
A4 short edge 210 mm
± 1.68 mm ± 2.43 mm ± 1.46 mm ± 0.84 mm ± 1.95 mm
8.5 x 11 inch 279 mm
long edge
± 1.29 mm ± 1.87 mm ± 1.12 mm ± 0.64mm
8.5 x 11 inch 216 mm
short edge
ColorQube® 9303 Family
Document
Glass Scan DADH Scan
Print IOT IIT IIT
± 2.0 mm ± 0.7 mm ± 1.7 mm
± 2.5 mm ± 0.7 mm ± 3.2 mm
1.
Document
Glass Scan DADH Scan
Print IOT IIT IIT
± 5.4 mrad ± 3.1 mrad ± 7.2 mrad
Document
Glass DADH
DADH Print IOT Scan IIT Scan IIT
± 1.56 mm ± 0.89 mm ± 2.8 mm
± 1.49 mm
NOTE: The measurement for skew and margin for Side 1 and Side 2 may not match
Margins
Refer to Figure 1. Process direction margin is measured on the leading edge at the center (3).
Cross-process margin is measured on the rear edge near the leading edge corner (4).
Lead edge skew
Figure 1 Skew and margin measurement
February 2013
3-107
Cross process margin
Image Quality
IQS 1