Oki IP-6620 Maintenance Manual page 423

<How to check leak tightness of the capping unit>
Jig: CAPPING-SEAL-TOOL (HV)
1.
Remove the COVER(R)ASSY-MW.
2.
Move the carriage to the maintenance
area (see 3.4.3.2 (4)).
3.
Place and press the glass surface of the
jig onto the cap as shown in the picture
to the right, and turn the suction pump on
(see 3.4.1.2 (3) (c) (i)).
4.
When the negative pressure gauge
indicates -70 Kpa, turn the suction pump
off.
Remove the glass surface from the cap
and check the two following points.
- The pressure decreases to -70 Kpa
or less in 10 seconds after the
suction has been turned off.
- The pressure does not increase by 2
Kpa or more in 30 seconds after the
suction has been turned off.
5.
Turn the air release solenoid on to
release the pressure.
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OKI Data Infotech Corporation CONFIDENTIAL
Chapter 6 Parts Replacement (Disassembly/Reassembly)
CAPPING-SEAL-TOOL (HV)