Konica Minolta bizhub PRESS C1070 - Manual (Page 59)

5-1
bizhub PRO C1060L
bizhub PRESS C1070/C1070P/C1060
5
5
Maintaining the Finishing Quality
5.1 Both Sides Adjustment
Both Sides Adjustment
When performing the duplex printing, you can adjust a misalignment between the front and back sides to align the
printing positions on the front and back sides. This task is referred to as Both Sides Adjustment.
A heat impact of the fixing unit may cause a slight enlargement or reduction of paper during printing. The impact level
varies depending on the type or weight of paper, therefore, if you have changed paper to be loaded into a tray, be sure
to carry out the Both Sides Adjustment.
Tips
Two methods are available to carry out the Both Sides Adjustment: entering from [Paper Setting] and from [Both Sides]
on the [MACHINE] screen. This guide describes how to enter from [Paper Setting] for adjustment.
Reference
For information about how to enter from [Both Sides], refer to the HTML User's Guide.
Adjustment flow
Follow the procedure below to proceed the Both Sides Adjustment.
A
Check the reference position of the print side
To judge whether a print position is misaligned, the required reference position adjustment must be
completed on this machine.
Before starting the Both Sides Adjustment, check the adjustment value of the reference position. If
necessary, adjust it.
There are the following adjustment items to be checked. To check them, on the [MACHINE] screen, select
[Adjustment] - [Machine Adjustment] - [Printer Adjustment].
- [01 Restart Timing Adjustment]
- [02 Centering Adjustment]
- [03 FD-Mag. Adjustment]
- [04 CD-Mag. Adjustment]
First adjust the front side in the order of 03 -> 04 -> 01 -> 02, then adjust the back side in the same order.
For information about how to check or readjust the adjustment value, refer to the HTML User's Guide.
B
Making the Both Sides Adjustment for each tray
The following adjustment methods are available.
- Gap Adjustment: the method used for aligning both sides with correction of the back side
magnification and print position based on the front side ones. (page 5-2)
- Chart Adjustment: the method used for aligning both sides with correction of the magnification and
print position of both front and back side. (page 5-7)
- Zoom and Image Shift Adjustment: the method used for fine adjustment after Gap Adjustment or
Chart Adjustment, or the method used when the amount of misalignment between both sides is
figured out. (page 5-14)
Reference
If skewing or wrinkling occur during printing, adjust the registration loop amount before making the gap Adjustment,
the chart adjustment or the zoom and image shift adjustment. For details, refer to the HTML User's Guide.
When the reference position on the print side is adjusted or [Both Sides Adjust] is selected, mark is printed out on
the front sides of charts to be printed, and you can identify from which paper tray the charts are printed out depending
on the number of marks. For details, refer to the HTML User's Guide.