Printhead alignment Printing tips For printhead alignment to work best with all kinds of plain paper, it is recommended to perform the alignment using HP Coated or HP Bright White papers. Vertical line straightness with other plain papers (such as non-HP plain papers and recycled papers) will improve. The printheads must be aligned whenever a new printhead is installed, and should be aligned after any paper jam that may have moved the printhead slightly. Use of multiple rolls There are various ways to set up the printer for multi-roll printing, using the roll-switch and paper- mismatch policies. Here are some examples. 1. Same paper type and different sizes loaded:
this is typical when printing line drawings in standard sizes. For instance, two rolls with A0 size plain paper and one roll with A1 size plain paper. Driver settings: paper type to Any and roll to Any . ● Roll switching policy: ◦ Minimize paper waste : Recommended setting for this workflow. With this setting, roll switch takes precedence over autorotate. This setting minimizes the paper wasted. For instance, if an A2 portrait is sent, the printer autorotates the A2 to fit it onto the A1 roll in landscape. But, if a A1 portrait is sent and the active roll is A0, the printer switches to an A1 roll to save paper. ◦ Minimize roll changes :
Not recommended except for very specific situations, when the customer wants to consume a roll faster. Autorotate takes precedence over roll switch, which reduces overall printing speed. ◦ Use roll with less paper : Not recommended in this workflow. This setting ensures that the roll with least paper is used up before changing to another. ● Paper mismatch policy: ◦ Print anyway : In this case, for instance, if a A0 page is sent and no A0 roll is available, the printer uses an A1 roll and clips the image. Recommended for a workgroup environment in which users share one printer. ◦ Put job on hold :
The printer saves the A0 page on hold in the queue and prints the next pages in the queue that can be printed. To reprint the A0 page, the customer needs to access the queue from the front panel or the Embedded Web Server. This setting is confusing in a workgroup enviornment because distributed customers may not know how to access the queue, but it can be useful in a centralized print environment to avoid clipping. ◦ Pause printer to load paper : The printer stops printing completely. This could be useful for a centralized printing environment where project print order must be maintained—for instance, when a project is a mix of A0, A1 and A2 in a given order. ENWW Printhead alignment 3