TSI Instruments 8925 Operation manual

Model 8925
Portable Printer
Operation and Service Manual
1980072, Revision D
November 2002
TSI Incorporated

Model 8925
Portable Printer
Operation and Service Manual
1980072, Revision D
November 2002
U.S. INTERNATIONAL
Sales and Sales and
Customer Service: Customer Service:
[phone] (001 651) 490-2811
[phone]
Fax: Fax:
[phone] (001 651) 490-3824
SHIP/MAIL TO: E-mail address:
TSI Incorporated [email protected]
500 Cardigan Road Website:
Shoreview, MN 55126-3996 USA www.tsi.com

i
Copyright
TSI Incorporated / 2002 / All rights reserved.
Address
TSI Incorporated / 500 Cardigan Road / Shoreview, MN 55126 /
USA
Fax No.
[phone]
LIMITATION OF WARRANTY AND LIABILITY. Seller warrants
the goods sold hereunder, under normal use and service as described in
the operator's manual, shall be free from defects in workmanship and
material for twenty-four (24) months, or the length of time specified in
the operator's manual, from the date of shipment to the customer. This
warranty period is inclusive of any statutory warranty. This limited
warranty is subject to the following exclusions:
a. Hot-wire or hot-film sensors used with research anemometers, and
certain other components when indicated in specifications, are
warranted for 90 days from the date of shipment.
b. Parts repaired or replaced as a result of repair services are
warranted to be free from defects in workmanship and material,
under normal use, for 90 days from the date of shipment.
c. Seller does not provide any warranty on finished goods
manufactured by others or on any fuses, batteries or other
consumable materials. Only the original manufacturer's warranty
applies.
d. Unless specifically authorized in a separate writing by Seller,
Seller makes no warranty with respect to, and shall have no
liability in connection with, goods which are incorporated into
other products or equipment, or which are modified by any person
other than Seller.
The foregoing is IN LIEU OF all other warranties and is subject to the
LIMITATIONS stated herein. NO OTHER EXPRESS OR IMPLIED
WARRANTY OF FITNESS FOR PARTICULAR PURPOSE OR
MERCHANTABILITY IS MADE.
TO THE EXTENT PERMITTED BY LAW, THE EXCLUSIVE
REMEDY OF THE USER OR BUYER, AND THE LIMIT OF
SELLER'S LIABILITY FOR ANY AND ALL LOSSES, INJURIES, OR
DAMAGES CONCERNING THE GOODS (INCLUDING CLAIMS
BASED ON CONTRACT, NEGLIGENCE, TORT, STRICT LIABILITY
OR OTHERWISE) SHALL BE THE RETURN OF GOODS TO

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SELLER AND THE REFUND OF THE PURCHASE PRICE, OR, AT
THE OPTION OF SELLER, THE REPAIR OR REPLACEMENT OF
THE GOODS. IN NO EVENT SHALL SELLER BE LIABLE FOR ANY
SPECIAL, CONSEQUENTIAL OR INCIDENTAL DAMAGES.
SELLER SHALL NOT BE RESPONSIBLE FOR INSTALLATION,
DISMANTLING OR REINSTALLATION COSTS OR CHARGES. No
Action, regardless of form, may be brought against Seller more than 12
months after a cause of action has accrued. The goods returned under
warranty to Seller's factory shall be at Buyer's risk of loss, and will be
returned, if at all, at Seller's risk of loss.
Buyer and all users are deemed to have accepted this LIMITATION OF
WARRANTY AND LIABILITY, which contains the complete and
exclusive limited warranty of Seller. This LIMITATION OF
WARRANTY AND LIABILITY may not be amended, modified or its
terms waived, except by writing signed by an Officer of Seller.
Service Policy
Knowing that inoperative or defective instruments are as detrimental to
TSI as they are to our customers, our service policy is designed to give
prompt attention to any problems. If any malfunction is discovered,
please contact your nearest sales office or representative, or call TSI's
Customer Service department at [phone] (USA) and (001 651)
490-2811 :(International).

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CONTENTS
Chapters
1. Setup ........................................................... 1
Unpacking .............................................. 1
Parts Identification ................................. 2
2. Portable Printer Operation .......................... 3
Connecting the AC Adapter/Charger ..... 3
Charging the Battery .............................. 4
Installing Paper....................................... 6
Test Printing ........................................... 7
Connecting the Printer to a TSI
Instrument........................................... 8
Operating with a TSI instrument............ 8
3. Maintenance ................................................ 9
4. Troubleshooting ........................................ 11
Appendixes
A. Specifications ............................................ 13
B. Serial Interface Information ...................... 15
C. General DIP Switch Information .............. 17
D. FCC Statement .......................................... 19

1
Chapter 1
Setup
This chapter guides you through unpacking and
identifying the parts of your portable printer. See
Chapter 2 for a detailed description of how to
operate the printer.
Unpacking
Carefully unpack the printer and accessories from
the shipping container. Check the individual parts
against the list of components in Table 1; if any
parts are missing or damaged, notify TSI
immediately.
TABLE 1: List of components
Qty. Item Part No.
1 Portable Printer 8925
1 AC Adapter/Charger
120 VAC / 60 Hz or
220 VAC / 50 Hz
2613049
2613048
5 Rolls of thermal paper 2608011
1 Interface cable to instrument 8926
1 Operation and Service Manual 1980072

Chapter 1
2
Parts Identification
Power Switch
There are three positions for this switch: OFF, ON,
and CHARGE/AC.
1. Keep the unit switched OFF when not in use.
2. When set to ON, power will be supplied from
the internal rechargeable battery.
3. Switch to the CHARGE/AC position when
charging the internal battery. Also use this
position to operate the printer on power
supplied through the AC Adapter/Charger.
Indicator Lights
There are two indicator lights visible on the front of
the printer: POWER and BATT.LOW.
1. The POWER indicator lights when power is
switched on.
2. The BATT.LOW indicator lights when the
internal battery charge becomes low. This
indicator flashes when a paper jam occurs.
DIP Switch Setting
The DIP switch cover may be opened to examine
the settings of the six DIP switches. The switches
will be set at TSI for proper operation with the TSI
instruments. Switches 1, 2, and 4 should be down
(on) and switches 3, 5, and 6 should be up (off).

3
Chapter 2
Portable Printer Operation
This chapter explains how to operate the portable
printer.
Connecting the AC Adapter/Charger
The AC Adapter/Charger provided with the printer
is used for charging the internal battery in the
printer and for operating the printer. In order to
connect the AC Adapter/Charger to the printer,
follow these steps.
1. Set the POWER switch on the printer to
CHARGE/AC.
2. Insert the printer end of the AC
Adapter/Charger into the printer’s power
supply jack.
3. Plug the AC Adapter/Charger into an
appropriate power outlet.
CAUTION: To prevent shorting, do not touch
the tip of the DC plug.
When removing the AC Adapter/Charger, set the
POWER switch to OFF and unplug the AC
Adapter/Charger and then the DC plug.

Chapter 2
4
Charging the Battery
The printer contains an internal rechargeable
battery. Because the battery charge is low at the
time of purchase, you will need to charge the
battery before use. To charge the battery, follow
these steps:
1. Set the POWER switch to CHARGE/AC.
2. Connect the AC Adapter/Charger as explained
in the previous section. Allow the printer to
charge for 15 hours.
3. When charging is over, set the POWER switch
to OFF.
Always observe the following to minimize
deterioration of battery performance.
• Do not charge continuously for over 24 hours.
• Charge within the temperature range of 40°F to
104°F (5°C to 40°C).

Portable Printer Operation 5
CAUTION: DO NOT run the printer with the
switch in the CHARGE/AC position if the
battery is sufficiently charged to run the printer.
It is important to allow the battery to discharge
fully until the low battery indicator comes on
before charging again.
There are two reasons for this precaution. The
first is that leaving the printer switch in the
CHARGE/AC position may over-charge the
battery if it does not need charging. The
second reason is that NiCd batteries have a
tendency to develop a memory if they are not
allowed to fully discharge before being
charged again. Both of these conditions will
result in poor battery life.
If the battery becomes discharged while printing,
the BATT.LOW indicator will light. It is then time
to recharge the battery. To continue printing with a
discharged battery, it is necessary to connect the
AC Adapter/Charger and set the POWER switch on
the printer to CHARGE/AC.

Chapter 2
6
Installing Paper
Before installing paper into the printer, it is
necessary to open the paper holder cover. To open,
place your thumb on the paper holder cover and
pull up and back.
To install paper into the printer, follow these steps:
1. Turn the POWER switch to ON.
2. Cut the end of the paper straight and square.
3. Open the paper holder cover.
4. Insert the front edge of the paper into the
insertion slot.
5. Press the PAPER FEED switch to advance the
paper. Keep the PAPER FEED switch
depressed until the end of the paper comes out
of the paper cutter.
A red line appears along the edge of the paper
when the remaining supply of paper becomes low.
When handling the thermal paper follow these
steps:
• Store in a dark place that is cool and dry.
• Do not rub with a hard object.
• Do not store near organic solvents.

Portable Printer Operation 7
Test Printing
A test printing allows you to confirm that the
printer is operating correctly and that the DIP
switches are set correctly. When you perform a test
printing, the printer will automatically print several
lines of characters. The final six lines indicate the
DIP switch settings. Remember, for proper
operation with TSI instruments, DIP switched 1, 2,
and 4 should be ON and switches 3, 5, and 6 should
be OFF.
To execute a test printing, follow these steps:
1. Make sure paper is installed in the printer.
2. Set the POWER switch to OFF.
3. Set the POWER switch to ON while pressing
the PAPER FEED switch at the same time.
4. Release the PAPER FEED switch when
printing starts.
Do not switch the printer off during a test printing.
The printer will stop automatically after printing is
over.

Chapter 2
8
Connecting the Printer to a TSI Instrument
An interface cable has been provided to connect the
printer to a TSI instrument. To connect the printer,
follow these steps:
1. Remove the plastic cover from the serial input
connector on the printer (if present).
2. Plug the printer end of the interface cable into
the 9-pin serial input connector on the printer.
3. Connect the other end of the interface cable
into the RS232 port of the host instrument.
Operating with a TSI instrument
Whenever you operate the printer with a TSI
instrument, always switch on the host instrument
before switching on the printer.
If you switch on the printer first, the printer may
print unreadable characters or a series of question
marks when you try to print data from the
instrument. If this happens, simply switch the
printer OFF and then ON again. There is no need
to switch off the host instrument.

9
Chapter 3
Maintenance
Some important points to remember when
operating the Model 8925 Portable Printer are listed
below.
• Use the AC Adapter/Charger provided and
connect to an appropriate power source. Do
not use an AC adapter other than the one
provided.
• Do not drop the printer or expose it to
excessive shock.
• Avoid places subject to high or low
temperatures (see specifications).
• Do not expose printer to long periods of direct
sunlight.
• Avoid extensive use in areas where excessive
dust, corrosive gases, or solvent vapors are
being generated.
• Do not switch off the power when the printer
is printing.
Never attempt to dismantle or repair the printer
yourself.

11
Chapter 4
Troubleshooting
Table 2 lists the symptoms, possible causes, and
recommended solutions for common problems
encountered with the portable printer. If your
symptom is not listed, or if none of the solutions
solves your problem, please contact TSI.
Table 2: Troubleshooting the portable
printer
Symptom Possible Cause Solution
Printer does
not print
Interface cable to
host instrument not
connected well
Check connections
and reconnect if
loose
Battery discharged Charge battery
Incorrect DIP
switch settings
Check settings (see
section in Ch. 1)
Printing
garbled
characters
Host instrument
was switched on
after printer
Switch off printer
then on again.
or ? marks Incorrect DIP
switch settings
Check settings (see
section in Ch. 1)

Chapter 4
12
Symptom Possible Cause Solution
BATT.LOW
indicator
blinking
Data from host
instrument not
understood by
printer
Switch off printer
and then switch on
again
Paper jam Check paper,
remove and
reinstall if needed
Battery not
holding
charge
Battery is dead Contact TSI to
order a battery
replacement