Oki LD670 User manual

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Notes on Use
Notes on printing and the paper used
(1) Printing at a high rate might result in unclear printing. If this problem occurs,
adjust the printing rate. Alternatively, adjust the print speed and print density so
that there are no blurs.
(See Examples (1) and (2) in Section 10-2, "Setting Up the Printer.")
(2) Printing characters from a non-standard character set e.g. in a thin serif font will
result in the characters appearing very faint. Use a bold sans serif font.
(3) For quality printing that is free from uneven spacing and condensed or elongated
printing after paper is cut or printing is paused, resume printing following a paper
feed of at least 1 mm (8 dots).
(4) If the data transfer rate is too low, serial printing may result in uneven print
density (vertical white marks may appear on printouts) because of repeated
printing and pausing. If priority is placed on print quality, use batch printing
mode.
(See Example (8) in Section 10-2, "Setting Up the Printer.")
(5) The printer shipped from the factory is preset to the darkest print density
(130%). If this setting is inappropriate, specify a lighter print density.
(See Example (1) in Section 10-2, "Setting Up the Printer.")
(6) If roll paper with an outside core diameter of other than 32 mm is used, the
paper-near-end detection accuracy deteriorates.
If roll paper with an outside core diameter of less than 32 mm is used, a transport
error may occur when the cutter cuts the paper in full cutting mode and reaches
the core.
(7) Since the difference in hue between red and black or blue and black may not be
noticeable when two-color thermal paper is used, be sure to confirm in advance the
color of the printed characters.
(8) When roll paper with a width of 83 mm is used, characters that are too close to the
(left or right) edge of the paper may not be printed because of inaccuracies in
tracking. Be sure to set a margin of sufficient width.
(9) Do not switch from narrow paper to wide paper (e.g., from paper that is 58 mm
wide to paper that is 80 mm wide) during operation. When narrow paper is used,
the thermal head area where there is no paper comes in direct contact with the
platen roller, and the resulting wear on the head may lead to a deterioration in
print quality. Similarly, if the paper width is changed, the cutter blade will cut at
a location that has no paper, and the resulting wear on the blade may lead to
improper cuts. To switch from narrow paper to wide paper, exchange the thermal
head and the cutter blade.

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(10) If label paper is used, adhesive matter adhering to the cutter blade, thermal head,
paper transport, or paper holder may cause a cutting error, print error, or paper
transport error. Remove adhesive matter periodically (typically on a monthly
basis).
(11) If paper is left inserted in the printer for a long time, the paper may become
deformed and result in thin (faint) printed characters. Before starting printing
in such cases, feed the paper by 20 to 30 mm.
(12) If the type of paper used is other than the recommended ones, the print quality
and thermal head life are not guaranteed. In particular, if the type of thermal
paper contains Na+, K+, or Cl-, the thermal head life may be significantly
shortened.
(13) When using full-sheet label paper, note that the paper may adhere to the head
and cause noise if the top margin is less than 3 mm. You should therefore set
the top margin to 3 mm or a greater value when printing on this type of paper.

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Notes on using the cutter
(1) Note also that the paper length used per transaction must be at least
15mm.
(2) The maximum number of successive cuts by the cutter is 30 cuts per
minute (at least two seconds per cut). Using the cutter at a higher rate may
cause a failure.
(3) Do not pull the paper during cutting. Doing so may cause a paper jam or
another problem.
(4) Each time that 30 sheets of paper are printed, the paper must be removed.
Otherwise, the printed paper remains in the automatic cutter section and may
cause a cutting error.
Notes on printing of barcodes and two-dimensional codes
(1) Barcodes that are rotated 90 degrees or aligned vertically when printed may
not be readable. Verify the readability in advance.
(2) Printouts on label paper or thick paper may contain blurs, depending on
humidity and other environmental conditions. Adjust the print speed and
print density appropriate for the type of paper used, and verify the
readability in advance.
(See Examples (1) and (2) in Section 10-2, "Setting Up the Printer.")
(3) The recognition ratio of two-dimensional codes (QR codes, PDF417,
DataMatrix, MaxiCode and RSS) varies depending on various factors,
including the module width, print density, ambient temperature, thermal
roll paper type, and reader performance. Adjust the print speed and print
density appropriate to printing two-dimensional codes, and verify the
readability in advance.
(See Examples (1) and (2) in Section 10-2, "Setting Up the Printer.")
(4) The paper transport accuracy may be negatively affected by printing a
barcode in the Upper margin at the beginning of paper transport or in the
Lower margin at the end of paper transport. Verify the readability before
starting printing.

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Notes on using the printer through the USB interface
(1) The printer must be connected directly to the host computer.
(2) Before starting printing, turn on the power to the printer.
(3) If a printer error occurs during printing, recover the printer from the
error, and then retry printing.
(4) The host computer should not be set to any of the following modes: standby,
sleep, suspend, and pause.
If the host computer or printer does not work normally after the host
computer returns to normal operation mode from one of the above modes,
disconnect the USB cable once and then reconnect it, or turn off the printer
power switch once and then turn on the switch again. If the host computer
or printer cannot be restored to normal operation after the cable is
reconnected or power switch is turned on again, restart the host computer.
(5) The USB hub function cannot be used when the power to the printer is off.
(6) If a peripheral device connected to the USB hub is not recognized, perform
one of the following operations:
- Disconnect the USB cable from the peripheral device once, and then
reconnect it.
- Connect the peripheral device to the other port of the USB hub.
(7) The operation of connected USB devices is not guaranteed. Before using a
USB device, verify its operation yourself.
Note : Do not turn off the power to the printer during printing.
If you inadvertently turn off the power to the printer during printing and
the printer then fails to work normally, restart the host computer.

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Note on installation
(1) The printer must be used indoors. If used outdoors, the printer may fail
because of dust.
Note on the modular connector
(1) This product uses a modular connector as a dedicated connector for the cash
drawer or customer display terminal. The connector must not be connected
with a connector that leads to a public switched line or other such
destination.
Note on using the printer in special mode
(1) If a large diameter roll is used, paper may fold or unusual noises may be
heard. To prevent these problems, use a roll with a small diameter (φ50mm
or less). If a Windows PC is used as the host system, a utility program can be
used to make settings.
Windows® is a registered trademark of Microsoft Corporation in the United
States and/or other countries.

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TABLE OF CONTENTS
1. Appearance and Names of Components ·········································· 11
Appended goods ·········································································· 12
2. AC Adapter ················································································ 13
2-1. AC adapter ·········································································· 13
3. Paper Specifications ···································································· 14
3-1. Paper Width········································································· 14
3-2. Paper Thickness ··································································· 14
3-3. Forms of Paper ····································································· 14
3-4. Paper Types ········································································· 16
3-4-1. Requirements for full-sheet label paper ··························· 18
3-4-2. Conditions for using black mark paper ···························· 19
3-4-3. Conditions for using die-cut label paper··························· 20
3-5. Recommended Thermal Paper················································· 21
4. Preparations ·············································································· 23
4-1. Connecting Interface Cable····················································· 23
4-2. Connecting the drawer kick cable ············································ 26
4-3. Connecting the AC Adapter ···················································· 27
4-4. Disconnecting the AC Adapter ················································ 29
4-5. Turning on the Power ···························································· 30
5. Inserting Paper for Printing·························································· 31
5-1. Opening the Top Cover ·························································· 31
5-2. Setting the Paper Width························································· 32
5-2-1. Mounting separator A··················································· 33
5-2-2. Removing separators A and B ········································ 34
5-2-3. Attaching separators A and B ········································ 36
5-3. Loading Paper ······································································ 38
5-3-1. Loading roll paper························································ 38
5-3-2. Loading fanfold paper ··················································· 40
5-4. Setting the Paper Guide························································· 43
5-5. Closing the Top Cover···························································· 44
6. Setting Up the Printer ································································· 45
6-1-1. Paper layout································································ 48
6-1-2. Custom paper ······························································ 49
6-1-3. Printing from an application ·········································· 53
6-2. Paper information setting using the utility································ 54
6-2-1. Paper layout································································ 54
6-2-2. Setting detailed paper layout information ························ 55
6-3. Setting Paper Information Using the Printer····························· 58

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6-3-1. Automatic layout detection ············································ 58
6-3-2. Setting the Paper Width················································ 59
6-3-3. Automatic layout detection ············································ 61
6-4. Replacing paper ···································································· 64
6-5. Paper Layout Errors······························································ 65
6-6. Adjusting Sensors ································································· 66
6-7. Print Density Setting····························································· 67
6-8. Print Speed Setting ······························································· 68
6-9. Cutting Position Correction ···················································· 69
6-10. Other Settings ···································································· 70
6-11. Initializing the Printer Setup Information······························· 70
7. Control Panel ············································································· 71
7-1. Control Panel ······································································· 71
7-2. Error Indications ·································································· 73
8. Preventing and Clearing Paper Jams ············································· 75
8-1. Preventing Paper Jams ·························································· 75
8-2. Clearing a Paper Jam ···························································· 75
9. Troubleshooting ·········································································· 76
9-1. Power-on Problems and Errors················································ 76
9-2. Cutter-related Problems························································· 76
9-3. Printing-related Problems ······················································ 77
10. Special Modes ··········································································· 78
10-1. Test Printing ······································································ 78
10-2. Setting Up the Printer ························································· 80
Example (1): Changing the Print Density ································· 81
Example (2): Changing the Max Speed····································· 89
Example (3): Changing the Print Color····································· 97
Example (4) Changing the Feed at Power On ···························104
Example (5) Initializing the printer settings ····························112
Example (6) Changing the PNE Detect····································116
Example (7) Changing the Paper Width ··································125
Example (8) Changing the Batch(OTHER IF)···························133
10-3. Setup Items·······································································142
10-4. Sensor Adjustment ·····························································151
10-4-1. Sensor adjustment mode·············································151
10-4-2. Black mark (BM) sensor adjustment·····························156
10-4-3. Adjusting the label sensor···········································158
10-4-4. Paper-near-end (PNE) sensor adjustment······················160
10-4-5. Paper end (PE) sensor adjustment ·······························162
10-5. Data Analysis ····································································165

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10-6. Sample Print ·····································································169
11. Regular Cleaning ·····································································174
11-1. Cleaning the Paper Holder and Paper Transport ·····················174
11-2. Cleaning the Platen Roller ···················································175
11-3. Cleaning the Thermal Head ·················································179
11-4. Cleaning the Cutter Blade and Frame ···································180
12. Interface ·················································································188
12-1. LAN Interface····································································188
12-2. Dual Interface····································································190
12-3. Drawer Kick Connector ·······················································191
12-4. Specifications of Power Supply ·············································194
13. Specifications···········································································195
13-1. General Specifications·························································195
13-2. Cutter Specifications···························································199
13-3. Paper Supply Specifications ·················································200
13-4. Interface Specifications ·······················································201
13-5. Environment Specifications··················································202
13-6. Specifications of Reliability ··················································203
14. Roll Paper Unit ········································································204
14-1. Outline ·············································································204
14-2. Nomenclature ····································································204
14-3. Paper Specifications····························································206
14-4. Roll Paper Feed Specifications··············································207
14-5. Roll Paper Unit Installation Procedure ··································208
14-6. Method of setting PNE sensor ··············································213
14-7. Method of setting guide plate ···············································214
14-8. Setting the Roll Paper ·························································215
14-9. Roll Paper Unit Appearance·················································220
OKI CONTACT DETAILS·······························································221

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1. Appearance and Names of Components
Pull up the release lever to open
the top cover.
Open the paper guide
when the expected
print length is longer
than 50 mm.
Paper guide
This switch turns the
printer power on and off.
Top cover
Open and close this
cover to replace
forms.
This panel
contains status
lamps and
operating
switches.
Release lever
Power switch
Control panel

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Appended goods
Thermal paper
CD
MANUAL
PRINTER DRIVER
UTILITY SOFT
Instruction sheet
Safety warranty sheet
AC adapter
Power cable

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2. AC Adapter
2-1. AC adapter
Only use the AC adapter specified below.
Model name: KA02951-0120
Input: 100 to 240V AC, 50/60Hz-
Output: DC24V±5%, 1.5A
Caution: Only use authorized AC adapters.
Caution: Do not use the bundled AC adapter and Power cable for any
electrical equipment other than this printer.

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3. Paper Specifications
3-1. Paper Width
(1) Paper width of 83 mm: 830-1.0 mm; paper width of 80 mm: 800-1.0 mm
(2) Paper width within a range of 70 to 25.4 mm (by units of 1 mm)
: 70 to 25.40-1.0 mm
Note: Paper with a width within a range of 71 to 79 mm cannot be used.
3-2. Paper Thickness
: 75 to 150 µm
3-3. Forms of Paper
(1) Roll paper
- Outside diameter: 102±0.5 mm or less
With the large-diameter roll paper unit (option) attached, the printer can use
a roll with an outside diameter of up to 200 mm.
- Core dimension: Inside diameter of 1 inch
(inside diameter: 25.4±0.5 mm; outside diameter: 32±0.5 mm)
- Printed surface: Outside of the roll
- Treatment of end of paper:The roll paper must not be glued to the core.
The end of the paper must also not be folded back.
Note: Do not use rolls that have rough sides or sides from which pieces of paper
extrude. Using such rolls could cause a printer failure.

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(2) Fanfold paper
- Maximum stack height: 180 mm or less
- Fold length: 76.2 to 203.2 ±0.5 mm (3 to 8 inches)
- Perforation specifications: 3 (cuts):1 (tie)

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3-4. Paper Types
The printer supports the following paper types:
a. Plain paper (including full-sheet label paper)
b. Black mark paper
c. Die-cut label paper (including die-cut label paper with black marks)
When using black mark or die-cut paper, the printer can move the paper to the
start position, cutting position, peeling-off position, or tear-off position according
to the paper layout settings.
To use this function, provide the printer with paper layout information,
including the paper type and size, before printing. Use of the printer without
these settings may result in a paper layout error or unexpected printouts.
Therefore, set the paper layout when you:
(1) use label paper for the first time,
(2) change the paper type (plain paper, black mark paper, or die-cut label
paper),
(3) change the paper size, or
(4) switch to die-cut label paper of the same size as the current paper but with a
different base color or other specification.
You can set the paper layout automatically or manually. For details, see Chapter
6, "Setting Up the Printer."

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Note: Die-cut label paper is a type of label paper with a label sheet already cut
into segments of a certain size.
Note: Full-sheet label paper is a type of label paper with an uncut label sheet
that allows users to cut to any length by using a cutter.
Note: The same settings can be used when printing on full-sheet label paper or
plain paper (with no black marks).
Note: When printing on die-cut label paper with black marks, be careful
regarding the print position and cut position. Printing on base paper,
which is not covered with label sheet, may damage the thermal head.
Note: Note on preprinting on the recording side of thermal paper
Using thermal paper whose recording side is preprinted may result in the
thermal head sticking to the surface of thermal paper, causing a print error.
Therefore, you should avoid using this type of thermal paper as much as
possible. If such use is unavoidable, confirm beforehand that use of the
paper does not cause print errors, thin printing or other problems.

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3-4-1. Requirements for full-sheet label paper
To prevent adhesive matter from sticking to the print head or paper guide,
use label paper that has undergone margin removal as shown below.
(Margin removal means cutting the margins at the time of
manufacturing.)
Slits on both sides on the printable side of paper
Label
Base paper
2 mm or less
2 mm or less
Slits
(for margin removal)

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3-4-2. Conditions for using black mark paper
When using receipt paper or full-sheet label paper with black marks,
confirm that the following conditions are satisfied. The reflection factors at
locations A and B on the paper must be the combination of values specified
in the table below.
Reflection factor
A: Black mark area
8%
B: Margins above or below black marks
75%
Note: The reflectivity values were measured using a Macbeth PCM II
density meter (Filter C).
0 to 1 mm
10 to 12 mm
5.0 to 5.5 mm
A
B
Print area
(seen from the
back side of
paper)
Back side of paper
(back of the coloring side of paper)
Paper feed
direction