iSys V8.5e Thermal Printer - Manual (Page 51)

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Plot is blotchy or faded
Figure 7-4 Blotchy or faded plot
This problem originates from inconsistent printhead pressure across
the platen roller during plotting.
Possible causes: Lid is not securely closed
Latch pins need adjustment
Solutions:
1. Check that the media is installed correctly and the plotter lid is securely closed. The top of the lid should be
flush with the top of the side panels.
2. If the plot is fading on one side, test by pressing down on that side of the lid while the plotter is plotting. If
this helps, the latch pin needs to be adjusted on that side. Contact your authorized service center.
Plot contrast is weak
Possible causes: Lid is not securely closed
Latch pins need adjustment
Media setting is incorrect
Contrast setting is too low
24 V power supply is malfunctioning
Solutions:
1. Check that the media is installed correctly and the plotter lid is securely closed. The top of the lid should be
flush with the top of the side panels.
2. If the lid does not close securely, or if the head pressure is too low, contact your authorized service center.
3. Check that the media setting is correct. See Chapter 4, page 4-8.
4. Adjust the contrast setting as described in Chapter 4, page 4-6.