T
echnical
B
ulletin
PAGE: 1/1
Model:
Shepherd-P1
Date:
10-Sep-18
No.:
RJ093002
Subject:
Ticking sound from negative pressure valve
Prepared by:
Y.Kurohashi
From:
1st System Business Promotion Section, System
Business Department
Classification:
Troubleshooting
Mechanical
Paper path
Part information
Electrical
Transmit/receive
Action required
Service manual revision
Retrofit information
Product Safety
Other (
)
Tier 2
At machine installation:
Please explain the intermittent ticking sound from negative pressure valve is normal work
of the machine.
To keep negative pressure at the print heads all times, the electrical valves open and close
intermittently.
Therefore, there is the sound not only at printing but also at standby-mode.
