Hitachi IJ PH Service Manual page 163

6.3.5 Target Spacing Too Close
Target Spacing
Too Close
Are there more than four
workpieces (print targets)
between the sensor and
print head?
No
Is the sensor chattering?
No
Replace the EZJ93 board.
6.3.6 Print Data Changeover In Progress C/M/S/V
Print Data Changeover
In Progress C/M/S
Resume the
operation.
NOTICE
The print target detection signal entered while the printer was not
ready.
See that the print target detection signal enters after a while.
Yes
Decrease the clearance
between the sensor and
print head and reduce the
number of workpieces
between the sensor and
print head to four or less.
。
Yes
Ensure that the sensor does
not chatter.
Print Data Changeover
In Progress V
Yes
Does product Speed
matching function
use?
No
Replace the EZJ93 board.
Resume the
operation.
6-26
The frequency of the encoder
signal is exceeding the
printing capability of the IJ
printer.