Lexmark Laser Printers manual Dual Web Forms, Design Guidelines, Dual Web Form

Dual Web Forms

Constructing dual web forms involves joining together rolls of two different materials (usually pressure sensitive paper and bond paper) and then converting to a cut sheet product. This construction requires a stripped edge matrix. The liner must be rigid enough to withstand the pick force of the printer.

The two materials must be thin enough for the sheet to lie flat in the paper tray. Orient the form in the tray so that the pressure sensitive area feeds into the printer first. The form should have no adhesive exposed in the overlay area or anywhere along the front or back of the form. We recommend designing a non-adhesive strip with a minimum width of 1 mm (0.04 in.) along the edges of the overlay.

To help prevent material from slipping in the fuser, we recommend “knurling,” which roughens up the exposed silicon area at the glue joint.

See “Figure 5” on page 24 for an illustration of the recommended dual web form design. The Non-Print Area may vary, depending on the printer model.

The face sheet of a dual web form is usually a paper pressure sensitive product; therefore, the guidelines for paper labels are applicable to dual web forms.

Liner Edge

Stripped Edge

0.0625 in.

1.6 mm

Reference Edge

Leading Edge

(8.5 in.)

0.0625 in.

1.6 mm

Pressure Sensitive

Non-Print Area

0.33in.

8.38mm

Overlay

(11 in.) Paper

0.25 in.

6.35 mm

Non-Print Area

(Not drawn to scale)

Figure 5. Design Guidelines, Dual Web Form

Label Design Guidelines

24