Print-Image Related - Brother MP-21C Service Manual

2.1.2

Print-image Related

Trouble
Completely blank
Random color
Light
Dark
Black or blurred vertical stripes
Action to be taken
Check the following:
- If any cartridge have run out of ink.
- The connection of the Head FFC cable between the Head
PCB and Main PCB.
- If there is any damage on the Head FFC CABLE.
- The connection of the four Head FPC cables on the Head
PCB.
- If the Waste ink tube is routed correctly.
Check the following components:
- Ink cartridge
- Head FFC CABLE
- Main PCB
- Head PCB
Check the following:
- If any cartridge is running out of ink.
- Try purging several times.
- The correct media setting is selected on the printer driver for
the paper to be printed.
- If the Waste ink tube is routed correctly.
- If the Purge unit is assembled correctly.
Check the following components:
- Ink cartridge
- Main PCB
- Head PCB
- Power supply PCB
Check the following:
- Monitor calibration has been carried out.
- Try purging several times.
- Check the paper feed related rollers.
- If the Purge unit is assembled correctly.
(If not, colors are mixed and a dark color is generated.)
Check the following components:
- Main PCB
- Power supply PCB
- Purge unit
Check the following:
- The printer is installed on a flat surface.
- Fresh paper is used.
- If paper is catching any other components during paper
eject.
- If ink has dropped down onto the Platen cover.
(If yes, clean the Platen cover.)
Check the following components:
- Purge unit (Wipe the Maintenance cap with the Head cleaner
stick ASSY (tool # ZA0310001) dampened with IPA.
IV-7