Manualshelf

Specifications

ManualsBrandsMIMAKI ManualsComputer equipmentJV33-130
131132133134135136137138139140
Outline
5-3
5-1-1. Operation Explanation
The JV33-160/130 slider has 1 head with 180 nozzles (180 dpi intervals) x 8 rows.
Ink is ejected from the ink chamber by vibrating the piezoelectric elements of the heads. For this
vibration waveform, the printer uses variable waveform which can permit 4-step expressions (L, M, S
and none).
The head is connected to the main PCB in the electrical box, and it is driven by a drive signal (COM
waveform) applied to the piezo of 1 nozzle row for each of the eight rows of nozzles.
FPGA (HDC) is mounted on Main PCB. The FPGA (HDC) applies the COM waveform in
synchronization with the scale interval of the linear scale and simultaneously sends the nozzle data to
the head.
In addition, the COM waveform is automatically corrected based on the registered head ID or the ID
registered in the head memory, other information, and the ambient air temperature detected.
The main PCB has FPGA (PDC), which takes charge of image processing and controls the SDRAM
picture memory (PRAM). The PRAM is mounted on the PRAM PCB. The PRAM board has a
capacity of 128 MB. Of the data output from the host PC, the command part is analyzed by the CPU
and the image part is transferred to the memory. The PRAM is a ring memory and when data for one
scanning session has been accumulated, the heads start scanning. One scanning session forms an
image only in 180 dpi (6-colors) or in 360 dpi (4-colors) in the X direction. Therefore, the printer
completes the image in the targeted resolution while feeding the media by a required distance.
Since the JV33 is equipped with many IOs (step motors and sensors), if all were connected directly to
the main PCB, routing the wiring and replacing the PCB would be difficult. To avoid this, a station
PCB and X-axis motor relay PCB are used, reducing the number of signals exchanged with the main
PCB using a serial connection. The signals are processed by the FPGA (IOC) mounted on the main
PCB.
Fig.5-2
Nozzle Arrangement of Head (Rear View)
Scanning direction
HEAD
Paper feeding direction