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Laser
Office

Model # SC125(5PCA) Official Laser typewriter

Here are the diagrams and repair parts for Official Laser SC1255PCA typewriter, as well as links to manuals and error code tables, if available.

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  • In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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Model diagram and schematic

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ALL PARTS
Showing 10 of 255 parts  |
Lift Off Rib 27151

#NI

All parts diagram

Lift off rib

Part #27151

The manufacturer no longer makes this part, and there's no substitute part

Fuse 781550
#11

Power supply diagram

Fuse

Part #781550

The manufacturer no longer makes this part, and there's no substitute part

Key Button 758087
#1

Keybutton reference chart diagram

Key button

Part #758087

The manufacturer no longer makes this part, and there's no substitute part

Spring 701661
#16

Carrier molding, rails, & frames diagram

Spring

Part #701661

The manufacturer no longer makes this part, and there's no substitute part

Screw 751077
#19

Paper feed diagram

Screw

Part #751077

The manufacturer no longer makes this part, and there's no substitute part

Gear Shaft 745321
#17

Element drive diagram

Gear shaft

Part #745321

The manufacturer no longer makes this part, and there's no substitute part

Torx Screw 751055
#11

Ribbon drive diagram

Torx screw

Part #751055

The manufacturer no longer makes this part, and there's no substitute part

Paper Spprt 780081
#4A

Jackets diagram

Paper spprt

Part #780081

The manufacturer no longer makes this part, and there's no substitute part

Key Button 758021
#9

Keybutton reference chart diagram

Key button

Part #758021

The manufacturer no longer makes this part, and there's no substitute part

Left Margin 758078
#32

Keybutton reference chart diagram

Left margin

Part #758078

The manufacturer no longer makes this part, and there's no substitute part

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Why won't my treadmill start even though the console display works?

Main causes: missing safety key, bad control console, wiring failure, faulty motor control board, bad drive motor…

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Why is my treadmill's heart rate sensor not accurate?

Main causes: faulty sensors, wiring failure, bad control console…

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Why does my treadmill have no display?

Main causes: bad control console, wiring failure, bad motor control board…

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Why does my treadmill's walking belt slow down?

Main causes: damaged walking belt, improper belt tension, lack of belt lubricant, bad drive motor…

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Why is my treadmill's walking belt slipping?

Main causes: damaged walking belt, improper belt tension, bad roller bearing…

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Repair guides for treadmills

These step-by-step repair guides will help you safely fix what’s broken on your treadmill.

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How to replace a treadmill motor controller

Your treadmill motor won't run with a defective motor controller. Replace the motor controller if it doesn't operate the…

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Repair difficulty
Time required
 15 minutes or less
How to replace a treadmill walking belt

How to replace a treadmill walking belt

A worn walking belt will begin to slow down during use. If your treadmill walking belt is worn out, replace it using the…

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Repair difficulty
Time required
 45 minutes or less
How to replace a treadmill drive motor

How to replace a treadmill drive motor

A defective drive motor won't run when activated by the motor controller. Replace the treadmill drive motor if it doesn'…

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Repair difficulty
Time required
 15 minutes or less

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