20 — Label and Receipt Printer
20–8
CX20/CX30/CX34 Service Manual
5
Fit new take–up motor/gearbox complete with drive cone using three
sets of Posidrive screws and shakeproof washers.
6
Connect take–up motor loom at interconnection.
7
Fit drive cone to motor drive shaft using Posidrive screw and
shakeproof washer through bore of drive shaft.
8
Fit printer as detailed in Sections 20.3.2 and 20.3.4, as appropriate.
20.3.7
Changing the stepper motor
To change the stepper motor and drive belt, proceed as follows:
1
Remove printer as detailed in Sections 20.3.1 and 20.3.3, as
appropriate.
2
Disconnect take–up motor loom at the interconnection: this prevents
damage when stepper motor is removed.
3
Cut cable ties attaching stepper motor loom to stand–off pillar, noting
their position.
4
Remove stepper motor by removing the hexagon headed screws,
shakeproof washers and plain washers securing stepper motor to
stand–off pillars: drive belt will fall away.
5
If necessary, remove drive gear from shaft of stepper motor by
removing grub screw from outer rim.
6
If necessary, fit drive gear to shaft of new stepper motor using grub
screw in outer rim. Check that stepper motor turns freely and that drive
gear is not too near motor casing.
7
Using new drive belt, fit stepper motor to three stand–off pillars
ensuring that wiring harness outlet of stepper motor faces drive gear on
friction roller.
8
Adjust position of stepper motor so that drive belt is tight. Secure
stepper motor using the two of hexagon headed screws, and four
shakeproof washers and plain washers (two washers either side motor
brackets).
9
Connect the take–up motor loom at the interconnection. Attach loom to
stand–off pillar using a cable tie.
10
Fit printer as detailed in Sections 20.3.2 and 20.3.4, as appropriate.
11
When installed in unit, current drawn by stepper motor must be checked
and, if necessary, adjusted (refer to Section 20.2).
20.3.8
Changing the friction roller
To change the friction roller, proceed as follows:
1
Remove printer as detailed in Sections 20.3.1 and 20.3.3, as
appropriate.
2
Remove paper cassette by setting print head arm upwards (so lifting
print head) and pulling cassette outwards. Print head is to remain lifted
throughout following procedure.
Содержание CX20 SERIES
Страница 133: ...11 Main PCB 11 4 CX20 CX30 CX34 Service Manual Figure 11 1 Main PCB Electrical Connections See Tables 11 1 and 11 2 ...
Страница 137: ...11 Main PCB 11 8 CX20 CX30 CX34 Service Manual Figure 11 2 Main PCB DIL Switches and Potentiometers ...
Страница 246: ...25 Appendices 25 9 CX20 CX30 CX34 Service Manual 1 Voids printed on receipt 2 Voids not printed on receipt ...
Страница 258: ...PL 1 CX20 CX30 CX34 Service Manual Section PL Parts List ...
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Страница 317: ...Addendum A Phase 1 4 and CX34 Parts List A 30 CX20 CX30 CX34 Addendum A ...
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Страница 323: ...Contents B 2 Addendum B ...
Страница 343: ...Addendum B Phase 1 5 1 5 3 and New Main PCB B 22 Addendum B ...
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Страница 351: ...PL Parts List Devlin Keyboard C 6 Addendum C ...
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