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Poor Fusing - Simplex Mode
If poor fusing occurs on labels or heavy forms, increase the preheat temperature in
5° increments until the fusing is acceptable. Run several hundred feet of forms to
stabilize the temperature. Check the fusing to see if it is acceptable.
If the fusing is unacceptable, increase the temperature by 5° and try printing again.
If adequate fusing does not occur, the form may be unacceptable for use on the
printers.
If the fusing is acceptable, examine the printed forms in the stacker to verify that
the sheets are not sticking together, or that toner is not being pulled off adjacent
sheets. If either condition exists, the form may be unacceptable for use on the
printers. Evaluate the condition of the printed forms and consider the following:
v How long it took to print the job
v How long the forms were left in the stacker
v How much pressure was applied to the stack
v The type of application for which the forms are used, for example, bar-code
readability.
Forms Stick Together
v If forms stick together or toner is pulled off the forms in the stacker, decrease the
preheat temperature by 5 degrees. Run several hundred feet of forms to stabilize
the temperature. Check the fusing to see if it is acceptable.
v If the fusing is acceptable but forms stick together in the stacker, decrease the
temperature by another 5 degrees and try printing again. If adequate fusing does
not occur without forms sticking together, the forms may be unacceptable for
use on the printers.
v Adjust the Contrast switch on the printer control panel to the lowest possible
setting that produces acceptable print quality. Remember to adjust the contrast
setting on both printers so that the contrast is balanced between the front and
back side of the forms.
v Change the Forms Select setting on the stacker control panel to “C”, if it is not
already at that setting. Check the fusing to see if it is acceptable.Ifunacceptable,
return the Forms Select to the previous setting. Increasing the print contrast may
also improve fusing of solid areas and bar codes.
Heat Damage — Printer Running
If heat damage (melting or curling) occurs to forms or labels while the printer is
running, set the temperature to a lower value before you continue printing.
Chapter 6. Operator Responsibilities 151
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