POSIFLEX PP-8800S Series User manual

Assembly Disassembly Guide
1
PP-8800S Series

Assembly Disassembly Guide
2
Table of Contents
Maintenance precautions..............................................................................................3
Preventive maintenance ................................................................................................3
Tools...............................................................................................................................4
Screws List......................................................................................................................4
Replacing Control Board ................................................................................................5
Replacing 3”Thermal Printer Mechanism....................................................................10
Replacing Serial Control Board…………………………………………………………………………….…21

Assembly Disassembly Guide
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Maintenance precautions
-Recommend to use the absolute alcohol for wiping & cleaning.
-NOT recommend to use naphtha and strongly corrosive solvents (e.g. with
Ammonia, formaldehyde, acetone… included) for cleaning.
Preventive maintenance
Maintenance items: dust, mildew, water vapor, oil stains, oxidation.
-Keep the operation environment with normal humidity & clean every day.
-Remove the dust buildup on the host terminal every month
-Clean the dirt/dust insides the terminal every year.

Assembly Disassembly Guide
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Tools
Screwdriver
Type
Specification
Photo
┿#2
Crosshead
Screwdriver
Point #2
┿#1
Crosshead
Screwdriver
Point #1
━
Slotted
Screwdriver
Thickness
0.4mm
Nut setter
Screwdriver
Hex Across Flat 5.0
Screws List
Parts No.
Specification
Photo
10684038062
BING HEAD SCREW#6/32-6L W/SW+W
10556027082
HEXAGON HEAD SCREW#4.8*8.2L+H
10524030102
BING HEAD S-TAP SCREW ∮3-10L
10661030062
PAN HEAD SCREW M3-6L W/SW+PW
10661020052
PAN HEAD SCREW M2-5L W/SW+PW

Assembly Disassembly Guide
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Replacing Control Board
Loosen the two screws as indicated in the
picture. Then remove the RS232 daughter
board.
Screwdriver ┿#2
Loosen the four screws from bottom as
indicated in the picture.
Screwdriver ┿#2
Before remove the printer bottom cover,
please push the power button, so it’ll be
easier to take out the printer bottom cover.

Assembly Disassembly Guide
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Remove the plastic bottom cover as picture
shown.
Unplug the cables as indicated in the
picture.
Loosen the three screws as indicated in the
picture.
Screwdriver ┿#2
Remove the plastic power button as
indicated in the picture.

Assembly Disassembly Guide
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Change a new control board.
P/N: 49775604102LN
Install the new control board, then fasten
the three screws as indicated in the picture
to fix it.
P/N:10684038062
Plug the cables as indicated in the picture
to the new control board.
Prepare the Bottom Plate as picture shown.

Assembly Disassembly Guide
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Place the Bottom Plate on the plastic
bottom cover, the shining side facing up, as
picture show.
Install the printer bottom cover to the main
unit as picture shown.
Fasten the four screws as indicated in the
picture.
P/N: 10524030102
Install the power button as picture shown.

Assembly Disassembly Guide
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Insert the RS232 daughter board to the
printer. Then fasten the two screws to fix it
as indicated in the picture.
P/N:10684038062

Assembly Disassembly Guide
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Replacing 3”Thermal Printer
Mechanism
Loosen the two screws as indicated in the
picture. Then remove the RS232
daughter board.
Screwdriver ┿#2
Loosen the four screws from bottom as
indicated in the picture.
Screwdriver ┿#2
Before remove the printer bottom cover,
please push the power button, so it’ll be
easier to take out the printer bottom
cover.

Assembly Disassembly Guide
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Remove the plastic bottom cover as
picture shown.
Remove the LED cable from the control
board as indicated in the picture.
Open the paper cover first, then push the
cutter cover outward by following the
direction as indicated in the picture.
Loosen the four screws as indicated in
the picture while removing the paper
cover.
Screwdriver ┿#2

Assembly Disassembly Guide
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Remove the plastic paper cover as
picture shown.
Unplug the thermal printer cables and
the plastic power button as indicated in
the picture.
Loosen the four screws as indicated in
the picture while removing the thermal
printer mechanism.
Screwdriver ┿#2
Loosen the three screws as indicated in
the picture while removing the cutter
cover and ground wire.
Screwdriver ┿#1

Assembly Disassembly Guide
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Unplug the FFC ZIF cable from the
thermal printer mechanism.
Loosen the three screws as indicated in
the picture.
Screwdriver ┿#2
Separate the cutter and thermal head as
picture shown.
Change a new cutter parts.
P/N: 39775002000LN

Assembly Disassembly Guide
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Change a new thermal head parts.
P/N: 39775003000LN
On the new cutter parts, separate the
parts as picture shown.
On the new thermal head parts, press
down the blue button as indicated in the
picture while releasing the roller.
Attach the cutter to the terminal head as
indicated in the picture.

Assembly Disassembly Guide
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Fasten the three screws as indicated in
the picture to fix the thermal head.
P/N: 10661030062
Plug the FFC ZIP cable to the thermal
printer mechanism as indicated in the
picture. (The blue side facing out as
picture shown.)
Loosen the three screws from the new
mechanism first. Then install the cutter
cover and the ground wire. Then fasten
the three screws back as indicated in the
picture.
Put the cable of thermal printer
mechanism go through the hole as
indicated in the picture.

Assembly Disassembly Guide
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Install the thermal printer mechanism to
the bracket aligning with the locating
points as indicated by the arrows in the
picture.
Fasten the three screws to fix the
thermal printer mechanism as indicated
in the picture.
P/N: 10661030062
Fasten the ground wire on the right side
as indicated in the picture.
P/N: 10661030062
Plug the thermal printer cables to the
control board as indicated in the picture.

Assembly Disassembly Guide
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Do the cable routing as picture show.
Then manage and fix the cables by a
cable tie as indicated in the picture.
Loosen the two screws as indicated in the
picture. Then remove the roller from
plastic paper cover.
Screwdriver ┿#2
Loosen the two screws as indicated in the
picture while removing the roller.
Screwdriver ┿#1
Install the new bracket or roller. Then
fasten the two screws as indicated in the
picture.【Make sure the roller has install
properly as indicated in the picture
(circled by green)】
P/N: 10661020052

Assembly Disassembly Guide
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Install the new roller to the plastic paper
cover by aligning with the two locating
points as indicated in the picture.
Fasten two screws to fix the roller as
indicated in the picture.
P/N: 10524030102
Turn the terminal printer mechanism to
the right direction, cutter facing up, as
picture shown while installing it to the
plastic paper cover.

Assembly Disassembly Guide
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Fasten the four screws as indicated in
the picture.
P/N:10684038062
Install the plastic cutter cover as picture
as picture shown.
Plug the LED board cable to the control
board as indicated in the picture.
Prepare the Bottom Plate as picture
shown.

Assembly Disassembly Guide
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Place the Bottom Plate on the plastic
bottom cover, the shining side facing up,
as picture show.
Install the printer bottom cover to the
main unit as picture shown.
Fasten four screws as indicated in the
picture.
P/N: 10524030102
Install the power button as picture
shown.