Canon imagePRESS C850 Series Troubleshooting Manual page 11

[Note] After mounting the torsion spring, confirm if the straight end of the spring [1] has not come off the notch [A] on the separation
plate.
13) Mount the duct [1].
- Stepped screw [2] 2 pcs
14) Close the inner paper delivery assembly and install the fixing assembly.
15) Take some prints and check the image. If the image appears normal, the work is finished.
16) A streaks with 174mm regular intervals may rarely occur. (The arrow [a] indicates the paper feed direction.)
In that case, from User mode go to Settings/Registration > Preferences > Paper Settings > Paper Type Management
Settings,select the paper type with which the streaks occurs, press the change button of "Adjust Fixing Speed" in [Details/Edit]
to adjust the fixing speed towards the positive direction.
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