Davin J012, Service Manual

Page: 187 / 365

•  to select a + value (Ma +40)
•  to select a – value (Ma -40)
16. [Yes]> "Adjust"
17. [No] > "Cancel?" > [Yes]> Standby
Drive Cleaning
Follow the procedure below to do drive cleaning. Here are some important points you should know about
drive cleaning.
• Drive cleaning should be done only after head cleaning and head flushing fail to clean the print heads
successfully.
• Drive cleaning is done by changing a bit switch setting in the SP mode and should always be done
by the service technician.
• Drive cleaning forces the piezo element to switch off and on repeatedly to force ink out of the nozzle
ports. (The piezo element does not operate during head cleaning or head flushing done with the
operator panel or the printer driver.)
• Drive cleaning consumes more ink than either head cleaning or head flushing and requires more time
to complete.
• Only one print head at a time can be cleaned with this procedure.
• Before you do this procedure, make sure the print cartridge of the color that is causing problems is
not almost empty. Drive cleaning cannot be performed if a print cartridge is almost empty.
1. [Clear Modes]> [1] [0] [7]> [Clear/Stop] for 3 sec.
SYSTEM Ver.0.51
Service Mode
2. [  ] > "Engine Maint."
SP No.
1000
3. [  ] 4 times> "5000"> [Yes]
4. [  ] 3 times> "5300"> [Yes]> [Yes]
5. [

] 1 time> "5301"> [Yes]
ENGINE SW1
5301
4. Troubleshooting
186
4