SECTION 5
TROUBLESHOOTING
93
Clogged/Damaged/Dead Nozzles:
The Memjet printhead cartridge contains 70,400 inkjet nozzles. These nozzles are divided into ten rows; two rows of
nozzles for each color channel. Due to the extremely high number of nozzles; it is not uncommon for some nozzles
to become contaminated, dehydrated or clogged.
Clogged/damaged/dead/ nozzles will show as thin, crisp, vertical lines of missing color.
Multiple adjacent nozzles, with same issue, will show as wider, crisp, vertical lines of missing color.
Clogged nozzles - normally due to Printhead nozzle dehydration or partial contamination.
Damaged nozzles - normally due to improper cleaning or debris on wiper roller causing damage to Printhead.
Dead nozzles - normally due to the nozzles reaching their “end of life” (printed over 125,000 linear inches).
Possible Solutions:
•
Press the “Full Clean Printhead” button, located in the “Maintenance Menu”.
•
Manually clean the printhead nozzles using distilled water and a lint free cloth.
•
Set the following Toolbox features as follows, to see if increased head maintenance will reduce this type of
issue during print jobs. KWS Setting (Medium) and Mid-Job Servicing (50).
•
Replace the Printhead cartridge and Wiper Roller.
Tip:
To help reduce nozzle dehydration, caused by long periods of printer sitting idle, print multiple (4-6) “Print
Color Bars” test pages to exercise nozzles and keep nozzles hydrated.
NOTE
: A similar print pattern, to the one shown above, can be performed using the “Print Ink Channels” button,
located in the Toolbox, “Test Print” drop-down menu.
Summary of Contents for Quadient Rena MACH 6
Page 1: ...Digital Color Inkjet Printer MACH 6 User Guide...
Page 131: ......
Page 132: ...2 1 2020 Quadient April 9 2020...
