Ricoh D124-17 Service Manual page 745

SP2000
2010 User Maintenance
Use this SP to clean or flush (refresh) the print heads. Both SPs start the cleaning cycle to
clean the print heads. However, remember that the refreshing cycle ejects a small
amount of ink while cleaning does not. Always clean the print heads before flushing.
See "Print Head Cleaning and Adjustment" in the Service Manual for more details about
how to print the Nozzle Check Pattern and how to clean or flush all (or selected print
heads) with the User Tools menu.
• Every execution of print head cleaning and flushing is recorded in NVRAM by a
counter (0 to 999999).
• This is done so the service technician can keep track of how many times the
operator is cleaning and refreshing the print heads.
• Humidity can affect the number of times the print heads require cleaning and
refreshing
1 Cleaning
Touch [EXECUTE] to clean the print heads without ink flushing. Always clean the print
heads at least three times before flushing the print heads.
2 Refreshing (Flushing)
Touch [EXECUTE] to flush the print heads only after you have executed cleaning at least
three times.
If printing is not satisfactory after three cleanings and one flushing:
• Repeat the procedure (three cleanings, one flushing). Allow the machine to remain
idle for 10 min. between each cleaning.
• If printing is still not satisfactory, let the machine remain idle for 8 hours.
• After 8 hours clean the print heads and check the Nozzle Check pattern. If printing
is still not satisfactory, execute two more cleanings and one flushing.
• If the Nozzle Check Pattern is still abnormal, the defective print head must be
replaced.
2012 Initial Operation Setting
This SP code is used to modify the initial ink filling sequence at installation and after one
or more print heads have been replaced. Every time the machine is turned on, the
machine checks the ink level in each sub tank. If ink is low, then the machine switches on
the ink pump motor(s) to fill the tank(s).
SP2000
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