Справочник Пользователя для Zebra Technologies P640i
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P640i Card Printer User Guide
980541-001 Rev. A
Troubleshooting
Troubleshooting quality problems
Troubleshooting quality problems
Poor color registration
•
Minor mis-registration of Y, M and C color passes may be due to printhead angle adjust
screw not in firm contact with printhead frame. Reference
screw not in firm contact with printhead frame. Reference
•
For gross mis-registration of Y, M and C suspect card not firmly against left hand pick
edge of truck on one or more passes. Spring at left end of platen may be missing or bound
up. Reference
edge of truck on one or more passes. Spring at left end of platen may be missing or bound
up. Reference
•
Check printed card for damage on corners or edges. Example: the card may be scraping
along the underside of the hopper base molding. Reference
along the underside of the hopper base molding. Reference
•
Printhead pressure too light. Reference
•
Printhead may be running hot. Will occur if head resistance incorrectly entered in driver
software. Reference
software. Reference
•
Toothed transport belt pulley may be slipping on drive shaft. Tighten set screws (make
sure the screws bear on flats on the shafts).
sure the screws bear on flats on the shafts).
Examples of color mis-registration
Left is the test card in the printer’s firmware. Right is an enlargement showing fringing on
process black text generated from Y, M and C.
Poor color rendering
•
Possible source issues - poor quality photos or
graphics, card layout application settings. Isolate
the problem by printing a known image, such as
Portraits.bmp, through IDPrint Lite. Reference
graphics, card layout application settings. Isolate
the problem by printing a known image, such as
Portraits.bmp, through IDPrint Lite. Reference
•
Vary brightness and contrast controls in
Preferences > Image Adjustment (preceding
page). Fine tune if necessary using Contrast
Preferences > Image Adjustment (preceding
page). Fine tune if necessary using Contrast
Adjust in Properties > Device Settings > Color Calibration. Reference
Faint, non-uniform image
•
Printhead pressure too low. Adjust downward. Reference
•
Printhead not pivoting freely. Reference
Gaps in image at edges and corners
•
Possible de-lamination/wear of platen’s rubber surface.
Try cleaning platen. If unsuccessful, replace platen.
Reference
Try cleaning platen. If unsuccessful, replace platen.
Reference
•
Possible non-uniformity of card thickness, or card surface
defects.
defects.