Oki Data CONFIDENTIAL
42615101TH Rev.8 231 /
7.5.3.(4) Vertical lines are printed
(4-1)Thin vertical lines (with color) (See Fig.7.2 D )
ID unit filming
LED head
CU Board
Confirmation Tasks
Check whether to print without a toner.
Check product No. of the label stuck on LED head. Vertical lines
appear due to adjustment failure that adjustment data of light
intensity from another head is used for adjustment when
EEPROM is not installed.
421431(EEPROM is installed)
426319(EEPROM is not installed)
When 3.3V fuse of the LED head on the CU board is blown
out, EEPROM in the head is not read out. Then, vertical
lines appear due to an adjustment failure of light intensity.
Fuse SPY-PCB:F501 SPA-PCB(Rev.6):F2
Action at NG
Exchange to a new
toner cartridge. If it still
doesn’t work, exchange
an ID unit.
Use FUSE KEEP
MODE of the system
maintenance menu
when using a new ID
unit as a test.
Exchange to a head
with EEPROM.
Exchange the CU
board.
Confirmation Items
(4-1-1)ID unit status
(4-1-2)LED head type
(4-1-3)CU Board
(4-2)Thin vertical lines (without color) (See Fig.7.2 F )
LED head
Path route
Confirmation Tasks
Confirm that obstacles do not adhere to an emission face of
Selfoc lenses of LED head.
Confirm that there is no burr to scratch toner which has not
been fixed.
Action at NG
Remove obstacles.
Remove the burr.
Confirmation Items
(4-2-1)LED head status
(4-2-2)Paper path condition
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