Oki GL408e GL408e/GL412e User's Guide - Page 132

Troubleshooting Table, Lcd Field Illuminated But Without Words Or No Display At All

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Unit 5: Troubleshooting TROUBLESHOOTING TABLE TROUBLESHOOTING TABLE IMAGE VOIDS Dirty print head. Damaged print head. Damaged electronics. Damaged or worn roller. Poor label quality. Ribbon stock and media are mismatched. Clean print head. Replace print head. Replace circuit board. Replace rollers. Use higher quality media. Consult with media supplier. RIBBON WRINKLING Poor head alignment. Excessive temperature setting Poor ribbon tension. Worn roller. Foreign material on print head and/or rollers. Foreign material on labels. Damaged print head. Adjust head balance and alignment. Adjust temperature. Adjust tension as required. Replace as necessary. Clean as required. Use higher quality media. Replace print head as required. LIGHT PRINT IMAGES Low print head energy/darkness. Low print head pressure. Foreign material on print head. Improper head alignment. Excessive print speed. Adjust darkness level. Adjust head pressure and/or balance. Clean print head and rollers. Align print head as required. Reduce print speed setting. UNEVEN PRINT DARKNESS Unbalanced print head. Worn rollers. Dirty print head. Adjust head balance. Replace rollers as required. Clean print head. MEANDERING MEDIA Incorrectly loaded media. Improperly adjusted media guides. Unbalanced print head. Worn rollers. Ensure correct loading. Adjust as required. Adjust as required. Replace as required. NO LABEL MOVEMENT Loose or broken timing belt. Incorrect label sensor selected. No voltage output. Drive motor not operating. Replace or adjust as required. Check printer configuration for proper sensor selection. Replace fuse. Test power supply and replace as required. Ensure wiring harness connection. Replace as necessary. LCD FIELD ILLUMINATED BUT WITHOUT WORDS OR NO DISPLAY AT ALL Power supply issues. Incorrectly positioned display potentiometer. Ensure cable properly connected. Check/replace power supply. Adjust as required. GL408-412e Operator Manual 5-8 PN: 9001163A

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Unit 5:
Troubleshooting
GL408-412e Operator Manual
5-8
PN: 9001163A
TROUBLESHOOTING TABLE
TROUBLESHOOTING TABLE
IMAGE VOIDS
Dirty print head.
Clean print head.
Damaged print head.
Replace print head.
Damaged electronics.
Replace circuit board.
Damaged or worn roller.
Replace rollers.
Poor label quality.
Use higher quality media.
Ribbon stock and media are mismatched.
Consult with media supplier.
RIBBON WRINKLING
Poor head alignment.
Adjust head balance and alignment.
Excessive temperature setting
Adjust temperature.
Poor ribbon tension.
Adjust tension as required.
Worn roller.
Replace as necessary.
Foreign material on print head and/or rollers.
Clean as required.
Foreign material on labels.
Use higher quality media.
Damaged print head.
Replace print head as required.
LIGHT PRINT IMAGES
Low print head energy/darkness.
Adjust darkness level.
Low print head pressure.
Adjust head pressure and/or balance.
Foreign material on print head.
Clean print head and rollers.
Improper head alignment.
Align print head as required.
Excessive print speed.
Reduce print speed setting.
UNEVEN PRINT DARKNESS
Unbalanced print head.
Adjust head balance.
Worn rollers.
Replace rollers as required.
Dirty print head.
Clean print head.
MEANDERING MEDIA
Incorrectly loaded media.
Ensure correct loading.
Improperly adjusted media guides.
Adjust as required.
Unbalanced print head.
Adjust as required.
Worn rollers.
Replace as required.
NO LABEL MOVEMENT
Loose or broken timing belt.
Replace or adjust as required.
Incorrect label sensor selected.
Check printer configuration for proper sensor selection.
No voltage output.
Replace fuse. Test power supply and replace as required.
Drive motor not operating.
Ensure wiring harness connection. Replace as necessary.
LCD FIELD ILLUMINATED BUT WITHOUT WORDS OR NO DISPLAY AT ALL
Power supply issues.
Ensure cable properly connected. Check/replace power supply.
Incorrectly positioned display potentiometer.
Adjust as required.