Problem | Probable Cause | Corrective Action |
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Poor print - uneven or no print | 1) Incorrect printhead pressure | 1) Remove stock and ink. Close |
(mechanical). Also see electrical | adjustment. | printhead. Release pressure (2 |
trouble shooting. |
| knurled knobs). Readjust |
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| pressure by turning knob(s) |
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| clockwise until they just contact |
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| printhead plate. Reinstall stock |
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| and ink. Turn adjusters |
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| clockwise approximately 1/8 turn |
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| (5 clicks of knob). As machine |
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| operates, increase pressure |
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| clicks at a time) until best print is |
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| obtained. Narrow webs will |
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| require less pressure on front |
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| adjuster. If print is still poor, |
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| loosen (2) M3 cap screws visible |
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| on outer edges of printhead |
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| carrier. Adjust tangent point to |
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| optimum print by rotating M3 |
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| screw in top center of printhead |
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| plate. Lock in place with 2 outer |
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| M3 cap screws. |
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| 2) Broken ink. | 2) Replace ink and readjust (see INK |
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| trouble shooting). |
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| 3) Ink not rewinding. | 3) Readjust (see INK trouble |
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| shooting). |
56 • Mechanical Trouble Shooting | Users Manual Model 656/636 |
