User Guide

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3. REPAIR
3.1 Notes on Service Part Replacement (and Disassembling/Reassembling)
Service part Notes on replacement
*1
Adjustment/settings
*2
Operation check
Print unit
(QM2-0290)
- Be careful of the ferrite
core position. See page
1-9 (1), for details.
After replacement:
- Perform the print head
alignment in the user
mode.
- Service test print
Logic board ass’y
(QM2-0237)
- Also replace the 4-item
set of the drain pack ass’y
and the 3 ink absorbers.
See page 1-12 (3), for
details.
- The absolute time setting
is necessary, as the coin
battery unit is removed.
See page 1-12 (2), for
details.
After replacement:
1. Initialize the
EEPROM.
2. Set the destination in
the EEPROM.
3. Perform the print head
alignment in the user
mode.
4. Perform the print head
cleaning 1 time.
- Service test print
DCDC board ass’y
(QM2-0238)
- Service test print
- Printing with the
battery power
Lithium battery unit
(QM2-0292)
- The absolute time setting
is necessary. See page
1-12 (2), for details.
- Special attention should
be paid to disposal of the
coin battery unit
*3
.
After replacement:
1. Perform the print head
alignment in the user
mode.
2. Perform the print head
cleaning 1 time.
- Service test print
Drain pack ass’y
(QL2-0194)
Ink absorber
(QC1-1210/1211/1212)
- These 4 items should be
replaced at the same time.
See page 1-12 (3), for
details.
- Confirm that no ink
leakage occurs from the
joint point between the
drain pack ass’y and the
purge unit. See page 1-12
(3), for details.
At replacement:
1. For the drain pack
ass’y, apply a thin coat
of grease (QY9-0059)
to the surface of the
mold part at the joint
of the purge unit. See
page 1-12 (3), for
details.
After replacement:
2. Reset the waste ink
counter.
- Service test print
Pressing plate unit
(QM2-0300)
- The spring can be
extended only 5mm or
less.
- In installing the unit,
make sure that the paper
lifting plate is not under
the paper return tab. See
page 1-13 (4), for details.
- Service test print
Main case unit
(i70: QM2-0287)
(PIXUS 50i: QM2-0310)
- In assembling, keep the
print head cover closed,
to protect the cover sensor
from damage. See page
1-14 (5), for details.