1 - 17 Service part Notes on replacement*1 Adjustment / settings*2 Operation check
LIFT CAM SHAFT
(HY7-2902) - Grease application to the
sliding portions
[See 3-3. Adjustment /
Settings, 3-3-7 Grease
application.]
After replacement:
1. LIFT CAM SHAFT phase
adjustment
See 3-3. Adjustment / Settings,
3-3-3 LIFT CAM SHAFT.]
-Service test print
TIMING SLIT STRIP
FILM
(HY7-2863)
TIMING SLIT DISK
FILM
(HY7-3083)
-Upon contact with the film,
wipe the film with ethanol.
- Confirm no grease is on the
film. (Wipe off any grease
thoroughly with ethanol.)
- Do not bend the film
After replacement:
1. Perform the print head
alignment in the user mode.
-Service test print
PRINT HEAD
(QY6-0049) After replacement:
1. Perform the print head
alignment in the user mode.
-Service test print
PAPE R EX IT T RAY
ASS’Y
(HY7-3220)
Align the left side of the tray
with the T-part’ angle of
Solenoid Cam Gear to insert
(after removing the tray, the
angle returns to almost
vertical by the force exerted
by the spring). Then pull the
tray open a little (approx. 30 –
60 degrees) and move it
toward the left side to insert
the other side of the shaft (see
the photo in Figure 1-7).
LEFT COVER
(HY7-3219)
Align the two claws of the
bottom frame with the claws
of the left cover (see the photo
in Figure 1-8).
RIGHT COVER
(HY7-3221)
Align the three claws of the
bottom frame with the claws
of the right cover (see the
photo in Figure 1-9).
*1: General notes:
- Make sure that the flexible cables and wires in the harness are in the proper position and connected correctly.
[See 3-2. Special Notes on Repair Servicing, 3-3-1 Flexible cable and harness wiring, connection, for details.]
- Do not drop the ferrite core, which may cause damage.
- Protect electrical parts from damage due to static electricity.
- Before removing a unit, after removing the power cord, allow the printer to sit for approx. 1 minute (for capacitor discharging
to protect the logic board ass'y from damages).
- Do not touch the timing slit strip film and timing slit disk film. No grease or abrasion is allowed.
- Protect the units from soiled with ink.
- Protect the housing from scratches.
- Exercise caution with the red screws, as follows:
i. The red screws of the paper feed motor may be loosened only at replacement of the paper feed motor unit (DO NOT
loosen them in other cases).
ii. DO NOT loosen the red screws on both sides of the main chassis, securing the carriage shaft positioning (they are not
adjustable in servicing).
*2: When SPCNT BOARD ASS’Y is replaced, be sure to select the settings of [#8CLEAR]-[ALL] and [#5TYPE] in Service Mode,
and turn the power OFF/ON with the Power button (Software Power: OFF/ON). DO NOT turn the power OFF/ON by removing
and inserting the power code (Hardware Power: OFF/ON). In this case, data may not be written correctly.