Print Head
Specification Change about FFC Connecting
Easy to connect FFC to print head
SC-P10000/20000 and SCP6000/8000 are all FFC type
SC-P8500D/T7700D are Board to Board type
In the connector of Board to Board type (A), retaining screw shape.
New Print Head Feature
In the section, the features of adopting the new print head type will be explained. The print head type has been changed for high-speed printing and improved dot landing accuracy. The changes are shown in the table below.
In the new print head, 3 nozzles overlap to make image quality better by controlling the gap of both head chips.
| Change | for SC-P9000/7000 (A) | (for P8500D/T7700D and P9500/7500 (B) |
|---|---|---|
| Print head type | PrecisionCore TFP | PrecisionCore μTFP |
Nozzle width | 1inch | 2.64inch |
| Nozzle number (each color) | 3,240 (360/color) | 8,000 (800/color) |
| Nozzle dpi | 360dpi | 300dpi |
Benefit of 300dpi
- Improves the production by achieving high print speed
- Matches to the standard dpi in the printing market
- Affects the image quality of letters for avoiding jaggy
Maintain the image quality with 300dpi
- Improved the droplet accuracy by combination of Media Inductive Roller and the head (similar with SC-P9500/7500)
- Using VSDT for making up the gap of lower dpi (same as P9500/7500 and P10000)
- VSDT=Variable Shot Dot Technology
- MSDT=Multi Sized Dot Technology
Nozzle Verification Technology + Automatic Cleaning
- First, the Head Piezo actuates a thin membrane to eject ink. (Drive signal)
- Then, the same Piezo detects the weave response. (Response signal)
- If a nozzle clogging is detected, a cleaning is automatically performed.
- (a) Drive Signal
- (b) Response Signal
- (c) Piezo= Actuator
- (d) Piezo= Sensor
- (e) ink ejected
- (f) After weaves (Pressure Variation)
 Check Point / チェックポイント |
This function is on both models but it is hidden on the SC-P8500D/T7700D. |
Missing Nozzle Compensation System
After a Nozzle Verification Technology sequence is run several times and the same nozzle is still stuck after several cleanings, the printer compensates by increasing the dot size around the missing nozzle.
- (a) All nozzles printing dots.
- (b) Nozzle clogged.
- (c) Nozzles around the clogged nozzle are printing bigger size dots. (Compensation System)
| Check Point / チェックポイント |
The SC-P8500D / T7700D is equipped with this function in any print mode. |