12-1 ● Maintenance
12. Maintenance
● To maintain the IJ printer in an optimum operating condition, it is necessary to perform
the following maintenance programs.
(1)Consumables replacement
Periodically replace the following filters.
No. Consumable
Approximate
replacement intervals
Replacement procedure
reference section
1 Ink filter 2,400 hr "7.9 Ink Filter Replacement"
2 Circulation filter 2,400 hr "7.11 Circulation Filter Replacement"
3 Recovery filter 1,200 hr "7.10 Recovery Filter Replacement"
4 Air filter 2,400hr See the next page.
● Operating time of 2400 hours is equivalent to a 1-year operation that is performed
8 hours a day, 25 days a month.
● The minimum retention periods of replacement parts (including consumable
parts) are 7 years after closing manufacturing.
● When you order consumable parts,inform the parts name and the parts code.
No. Consumable Parts name Part code Note
1 Ink filter Ink filter parts 451590 Nominally 10 μm
2 Circulation filter PTFE filter 20 pack 2 451487 2 pieces/1 pack
3 Recovery filter Nozzle flat filter 75 451037
4 Air filter Air filter parts 451594 3 pieces/1 pack
(2) Other maintenance programs
a. Check for abnormal sound generation from the pump at about 1-week intervals.
b. Before verifying the print results at the beginning of each day's operations, check that
the pressure value is optimal. (For the verification procedure, see Section 7.12,
Pressure Adjustment.)
c. For ink drop and excitation voltage checkout, see Section 7.13, Excitation Setting
Adjustment , and Section 7.14, Ink Drop Generation Status Checkout Procedure.
(3) Parts to be replaced periodically
The clock battery, circulation system parts (pump, solenoid valve, etc.), and heating
unit need periodic replacement. Consult your Hitachi distributor.
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