Grit Eccentricity Adjustment - Roland Color Camm Pro PC-60 Service Notes

4 Adjustment

4-19 GRIT ECCENTRICITY ADJUSTMENT

GRIT ECCENTRICITY ADJUSTMENT SHOULDN'T BE PERFORMED FOR ORDINARY
SERVICE.
This adjustment is designed to ensure the printing quality by calibrating the eccentric amount of the GRIT
ROLLER. GRIT ROLLER is eccentric due to the manufacturing tolerance.
Sometimes, the eccentricity of GRIT ROLLER could cause dark BANDING or WHITE LINE between
BANDs.
When printing is effected by the eccentricity of GRIT ROLLER, GAP and BANDING appear in every 8
BAND in a cycle.
For example, if there is BANDING in between 1st and 2nd BAND, there will be GAP between 9th and
10th BAND.
However, the adjustment procedure has not been established perfectly, yet,
and also, BANDING and WHITE LINE are caused more by other reasons.
Therefore, this procedure is tentative and should be followed only when
BANDING or WHITE LINE is caused by the eccenctricity of the GRIT
ROLLER.
4
[GRIT ECCENTRICITY ADJUSTMENT MODE FLOW CHART (in Factory Mode)]
After all [CARTRIDGE HOLDER] LED
become ON, it will be turned OFF from 1 to 6 in order.
Then, [PIECE] and [ROLL] LED will be ON.
80
[POWER] LED will blink and
[PIECE] & [ROLL] LED will be ON.
ADJUSTMENT MODE
Select position to be
adjusted.
Change parameters for
GRIT ECCENTRICITY
ADJUSTMENT.
Save Settings.
GRIT ECCENCTRICITY
ADJUSTMENT MODE
[POWER] LED will be ON and
[PIECE] or [ROLL] LED will blink.
[POWER] key
[ ] or [ ] keys
[ ] or [ ] keys
[SHEET TYPE] key
GAP
9th BAND
BANDING
1st BAND
PRINTING MODE
Test pattern for GRIT
ECCENTRICITY will
be printed.