Phaser 4500/4510 Service Manual 5-13
Print-Quality Troubleshooting
Skew
Actions and Questions Yes No
1.Enter Service Diagnostics, select Engine Test 
Print, then press the OK button.
2.Scroll to Print Test Pattern, then press the OK 
button.
3.Measure the dimensions ‘A’ and ‘B’ on two 
consecutive test patterns.
Is the difference between ‘A’ and ‘B’ 1.2 mm or less?
The printed 
test patterns 
meet the 
Skew 
specifications. 
Go to “Skips 
and Smears” 
on page 5-48.
Go to 
“Skewed 
Image” on 
page 5-43.