Adjustment Procedure

The following shows the procedure for the both sides adjustment:

1. Checking the reference position of the printing side

   To determine the misalignment of printing position, the adjustment of the reference position required on the main body side must be completed.

   Before performing the both sides adjustment, check the adjusted value of the reference position and make adjustment as needed.

   Adjust the reference position at the following timing:

   • Immediately after the machine is installed

   • When only the both sides adjustment per tray cannot correct misalignment

   

   • When changing the paper, first perform the both side adjustment per tray.

   • The adjustment for the reference position of the print side is an advanced adjustment. Contact your service representative in advance of the adjustment.

   The following items of [Adjustment] - [Machine Adjustment] - [Printer Adjustment] on the [MACHINE] screen need to be checked: Adjust the front side in the following order, and then adjust the back side in the same order.

   [ FD-Mag. Adjustment] - [CD-Mag. Adjustment] - [Restart Timing Adjustment] - [Centering Adjustment]

   For details about each item, refer to the following:

   • Restart Timing Adjustment: Adjusting the Image Position of Lead Edge in Paper Feed Direction in the Printer

   • Centering Adjustment: Adjusting the Image Position in the Crosswise Direction in the Printer

   • FD-Mag. Adjustment: Adjusting the Magnification in Paper Feed Direction in the Printer

   • CD-Mag. Adjustment: Adjusting the Magnification in Crosswise Direction in the Printer

2. Perform both sides adjustment per tray.

   Perform the both sides adjustment per tray at the following timing:

   • When changing the paper in the tray (when changing the paper type, size, weight, etc.)

   • When output, misalignment is found between the both sides, and you want correct it

   The adjustment can be made by either of the following two methods:

   • Chart adjustment: the method used when the amount of misalignment between the both sides is unknown. For details, refer to Chart Adjustment.

   • Zoom/Image shift adjustment: the method used for fine adjustment after chart adjustment or when the amount of misalignment between the both sides is known. For details, refer to Zoom/Image Shift Adjustment.

   

   • When printing, if the paper is bent or wrinkled, adjust the registration loop before performing the chart adjustment or the zoom/image shift adjustment. For details, refer to Adjustment of Registration Loop.