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9820/9830/9835 Service Manual
3. Check Blade Assembly alignment and ensure
assembly mounting screws are tight.
4. Verify supply type; cutter only cuts tags. Labels
should not be cut.
5. Check to ensure tags being used do not exceed
0.010 inch (0.25 mm) thickness.
VOLTAGE TESTS
Before replacing the Drive Board, check for the static
voltages shown in Table E-1 to determine if the board
has failed. If all voltages are correct, troubleshoot the
9835 printer control board. See Chapter 3.
1. If 25Vdc is not detected at J3 pin 1, the printer is
not providing power to the knife drive board.
Troubleshoot the printer.
2. If 25Vdc is detected at J3, pin 1, but not at both
pins of J1 and J2, replace Knife Drive Board.
3. If 25Vdc is detected at J1 but not at J2, replace
solenoid.
4. If 25Vdc is at J2 but not J1, replace knife drive
motor.
Table E- 1. Knife Drive Board Voltages.
Connector
J1
J2
J3
J5
Connector Pin
1
2
3
4
5
6
7
8
9
LUBRICATION
To prevent excessive wear, the knife should be
lubricated every 100,000 cuts. (Approximately, every
10 rolls of 1.2" supply.) A Knife Lubrication Kit (Part
Number 118782) is available.
66
Voltage
25v on both pins
25v on both pins
25v on pin 1 only
Voltage
5v
5v
5v
5v
5v
TC9830SM Rev. B 7/98 Confidential
NOTE:
Lubricate with multi-purpose grease using a
long cotton swab. Do not over lubricate.
Do not get grease on knife blade or
performance could be affected.
1. Turn printer off.
NOTE:
The knife unit has two cam surfaces that
should lubricated with multi-purpose grease.
2. Using a long cotton swab,
lubricate the knife cams.
3. Turn printer on and test for correct
operation.
Cam hidden
from view
Figure E-1. Knife Lubrication Points.
MAINTENANCE OVERVIEW
This section describes removal and replacement
procedures for the knife assembly. See Figure E-2 for
printer-to-knife connector locations. See Figure E-3 to
identify parts and assist in performance of
maintenance procedures. Figure E-4 shows the
location of connectors on the drive board.
GENERAL SAFETY TIPS
Observe these general safety precautions before
servicing the knife. Additional Warnings and Cautions
appear in this document as they apply to specific
procedures.
Connectors
9835 Printer
Figure E-2. Location of Connectors.
Model 926 Knife
Cam
Knife Assembly
July 1998
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Troubleshooting
