Hitachi IJ PH, Service Manual

Page: 163 / 211

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