Printer sublimation tegnology

1. SERVICE SUPPORT (Spanish Branch) Printersublimationtegnology Objective: The followings contents try to use the same definition for all efects (key words) Which will be understand each other MEUSP CONFIDENTIAL

2. Printing direction Thermal head Black area Smearing symptom Especially Light grayish “back ground” SERVICE SUPPORT (Spanish Branch) sample reason Printing Starting Key word = Obiki (Smearing) PaperDirection This symptom will be caused due to thermalresponce of thermal head from black (high temperature) to white (low temperature) changing. MEUSP CONFIDENTIAL

3. Key word = Skew (skew) Problems due to the paper Mechanism, the paper has A shifting moviment from the left to right and vice versa Printing area Photo Nº 1 Printed paper

4. SERVICE SUPPORT (Spanish Branch) Key word = Nodo Mura ( Uniformity of printing density) “Noudo Mura” is general word about the un-uniformity of printing density. One of the SAMPLES One of the REASONS Thermal head Printing direction Uneven thermal head surface cause Uniformitil level efect, and makes not good constant contact between thermal head/inksheet/paper and platen roller. MEUSP CONFIDENTIAL

5. SERVICE SUPPORT (Spanish Branch) Key word = Fuka Mura REASON SAMPLE White area change into of gray back ground produce un evengray Thermal head (internal constructions) + voltage input data Comun ground virtual resistor • The comun cable, which goes to the comun ground, it is not a perfect conductor, it has a small resistence less than 1 Ω, it is represented above, like a virtual resistor. • Therfore a big current will produce a big DDC to the virtual resistor. • The voltage adjusment is fixed, then when the current is lower due to a bigger are white then virtual resistor will has low voltage in betwem, • when the current is bigger due to gray back ground therfore the voltage in the virtual resistor will be bigger, it means that, for the same voltage input, the total current will be different betwen, gray and white area,. • therfore this difference is different gray value betwen. • all thermal head area making gray or half thermal head making gray. • Look at the attache photo MEUSP CONFIDENTIAL

6. SERVICE SUPPORT (Spanish Branch) Key word = Siwa (Wrinkling) REASON sample Thermal Head Voltage Adjustment too high MEUSP CONFIDENTIAL

7. Key word = Kizu( Scratch on printing surface) One of the reasons sample Thermal head Possible causes • Small roughnessontheplateindicatedwiththecircle • In this case, itcouldberesolverdwith a lappingsheet • Alsothisphenomen can beproducedbycutterwhenthepaperpasstroughtit • Dustoranotherdirty material It can be resolved rubbing with laping sheet MEUSP CONFIDENTIAL

8. Key word = Okuri Mura (Banding) sample REASON Printer direction • When the paper running or the Ink Shent running they don´t have even moviment • Then in both cases appear banding efect, • Check the publicated technical note for details • On the another hand when the platter roller , or any related roller, they have some defect , appear banding. • Gears, torke limiter, ink motor or paper motor can produce bading too if some one has some defect MEUSP CONFIDENTIAL

9. Key Word = Suji Mura (wide line or stripe pattern in general concept) • Wide line or stripe pattern of printintg density in the paper feeding direction • Any density problem due to paper, ink or themal head missalignment which still is not recognized the reason Printing MEUSP CONFIDENTIAL

10. Key Word = Sticking Strong noise The efect can appear in the following cases • High room temperature and dark image printing continusly • Due to Ink sheet characterics • Wrong thermal head alignment • Too high voltage voltage for thermal head • In this condition appear sticking • It means that is difficutl remove the paper from the ink sheet MEUSP CONFIDENTIAL

11. DRAG LINE EFFECT Frontal View Thermal head Platten Roller Axis View Thermal head Platten Roller Key word = Drag Line sample REASON The thermal head has to be alineated for the above cases Thermal Head Adjustemnt MEUSP CONFIDENTIAL

12. REASON Thermal head No good contact between thermal head heater line an platten roller Frontal View Platten Roller Axis View Thermal head Platten Roller Key word = Kasure ( un-even of printing uniformity) sample Thermal Head Adjustemnt MEUSP CONFIDENTIAL

13. Key word = Niji Mura (Rainbow Stripe) sample REASON • The enviroment light is reflected on the photo mainly with very dark areas it. • It appear due to Over Coat protection where the light is reflected and appearing Nijin Moura (rain Bow), mainly with very dark images MEUSP CONFIDENTIAL

14. data data Driver unit Driver unit voltage To the transitors To the transitors Comun grond virtual resistor Key word = Block Nuke (white band) sample REASON • If the driver unit marked with a circle is broken which is inside of thermal head, then all the pixels related to the driver will be inoperated, terfore will appear a white ban on the photo MEUSP CONFIDENTIAL

15. Key word = Dot Nuke (White line) sample REASON Dead a heater pixel on thermal head Data CMOS IC data Driver unit Driver unit voltage To the transitors To the transitors Comun grond virtual resistor Pixel dead due to Electroestatic discharge MEUSP CONFIDENTIAL

16. Key word = ShiroNuke ( Thermal head scratch) sample REASON Surface head damaged White line cause by thermal head damaged Paperrunning direction MEUSP CONFIDENTIAL

17. Key word = Iro Zure (Miss registration) sample REASON Miss registration of the printing position with yellow magenta and cyan color This effect apperar when appear driving problems with the paper or Ink sheet MEUSP CONFIDENTIAL

18. Key Word = Tofu mura ( Un uniformity of ink) Sample-1 REASON This uniformity is caused by the ink sheet with un-uniformity of printed ink on inksheet firm. Sample-2 MEUSP CONFIDENTIAL