(3) LF / Eject correction
After replacement of the feed roller, platen unit, LF / Eject encoder, carriage encoder film, or logic board in repair
servicing or in refurbishment operation, perform the adjustment to maintain the optimal print image quality.
If the print quality is considered unaffected by replacement of those parts, it is not necessary to perform LF / Eject
correction.
1) Print the LF / Eject correction pattern.
Click
LF/EJECT
of the Service Tool, select the paper source and the paper type, and print the pattern. 5 sheets
of A4 paper will be used for the pattern printing.
- Paper source: Select either
Rear tray
or
Cassette
.
- Media type: Select one from
HR-101
,
GF-500/Office Planner
,
HP Bright White
, and
Canon
Extra/STEINBEIS
.
2) When printing is finished, the machine returns to be ready for selection of another function ("A function was
finished" is displayed on the screen).
3) In the printout, determine the Pattern No. in which streaks or lines are the least noticeable for the LF check
pattern and the Eject check pattern respectively.
(LF Pattern No. 0 to 4, Eject Pattern No. 0 to 4)
4) Select and set the correction values.
In the
LF/EJECT Correction
section of the Service Tool, select the Pattern No. (from 0 to 4) determined in
step 3) for
LF
and
EJECT
respectively, and click
Set
.
5) The selected LF and Eject correction values are written to the EEPROM, making the E-MIP correction value
(which was set at shipment from the production site) invalid.
Note: At the production site, the E-MIP correction, which is equivalent to the LF / Eject
correction, is performed using the special tool, and the E-MIP correction value is written to
the EEPROM as the valid data.
When LF / Eject correction is performed, the LF / Eject correction values become valid
instead of the E-MIP correction value (thus, in the initial EEPROM information print, "LF =
*" and "EJ = *" are printed, but the selected values are printed after the LF / Eject
correction).
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Summary of Contents for PIXMA MG5220 Series
Page 29: ...8 Remove the scanner unit Disconnect two harnesses and one FFC Remove one core 25 62 ...
Page 55: ...51 62 ...
Page 60: ...4 2 Integrated Inspection Pattern Print Print sample 56 62 ...
Page 61: ...4 3 Ink Absorber Counter Value Print Print sample 4 VERIFICATION AFTER REPAIR 57 62 ...
Page 64: ...60 62 ...
