HP Designjet L26100 HP Designjet L26500/L26100 Printer Series - User's Guide - Page 59

After each job, the printer prints a black reference line that is used to align the matching job on the second side. NOTE: The chance of visible misalignment between the two sides increases with the length of the job. For this reason, in double-sided printing you are recommended not to print any single job that is longer than 3 m (10 ft). 4. After printing, advance the substrate a little using the Move substrate key. ● If you plan to attach the substrate to the take-up reel before printing the second side, advance the substrate enough to achieve this. ● If you plan to attach the substrate to the take-up reel while printing the second side, advance the substrate about 10 cm (4 in). NOTE:You are recommended to use the take-up reel to wind side A automatically, to avoid the "telescopic effect" that leads to deformation of the substrate edges and printhead crashes while printing side B. 5. Cut the substrate, either manually or by going to the front panel and selecting the icon, then Form feed and cut. Before cutting, ensure that the total length of the cut substrate is more than 2 m (6 ft 7 in), otherwise you may be unable to load it successfully. NOTE: The Form feed and cut command will not work if the substrate cannot be cut by the cutter. 6. Select the icon, then select Substrate unload. 7. Reload the substrate with the first (printed) side facing up as it enters the printer, and with the reference line near the leading edge. Reload if necessary until the printer finds less than 1 mm/m skew. TIP: Although it is not strictly necessary, you may find it quicker to use the manual loading procedure as an initial approximation, and then allow the printer to find the reference line more accurately. See Load a roll into the printer (manually) on page 30. If you use only the automatic loading procedure, the printer may take some time to find the reference line. TIP: You are recommended to use the edge holders when printing the second side, which means using the manual loading procedure. TIP: If you have deliberately not attached the substrate to a spindle, and the front panel reports that the substrate may be detached from the core, or that the feeding direction is not detected, you can ignore the message and continue. 8. The front panel asks, Would you like to load substrate for printing as side B? Select Yes. 9. The printer searches for the reference line on the substrate. If it fails to find it, the front panel asks you to move the substrate using the Up and Down keys until the reference line is aligned with the permanent line on the platen. You may find it useful to mark where the reference line is on the other side of the substrate. Handle the substrate ENWW Double-sided printing 55