Texas Instruments 880/880 DP /880 AT OSR
Menu
Form mode - Form mode is used for changing font, cpi, lpi and perfskip and for
checking host set margins. When Offline, press Command, and then Menu. A form
report will print in the following format: PRTFEA=F; FONT=DRAFT; CPI=10; LPI= 6;
LM=001; RM=132; TM=001; BM=084; FL=084; PERFSKIP=OFF. To change a
setting, press Change. Then press Accept until the desired feature is printed.
Press Change until the desired setting is reached. Press Accept to accept the last
change and print the next item. Each item may be changed this way. Press Normal
to save changes. PRTFEA is changed by selecting the desired position on the Print
Feature switch.
Configuration Mode - When Offline, press Command, and then Menu (the form
menu will print). Then press Accept. The Configuration report will print in the fol-
lowing format:
14; 27; 36; 41; 81;
1st code = Communication Mode
2nd code = Baud Rate
3rd code = Parity & Data Bits
4th code = National Language. All other codes are options.
Press Change. A line will print giving the selections for the 1st code with the cur-
rently selected code underlined. Press Change until the desired code is underlined.
Press Accept. The selections for the 2nd code will print. Continue this way through
the first four codes. For the options, each one will print one at a time, underlined if it
is selected. Press Accept to accept it the way it is, or Change to change it to the
opposite status. Press Accept to accept any change. Press Normal to save
changes.
Communication Mode (select one only)
13=Full duplex modem mode
14=Direct connection mode, reverse channel on for Ready (default)
15=Direct connection mode, reverse channel off for Ready
16=Current loop
17=Parallel I/F
Baud Rate (select one only)
21=110 bps 26=2400 bps
22=200 bps 27=4800 bps
23=300 bps 28=9600 bps
24=600 bps 2A=19200 bps
25=1200 bps
Parity and Data Bits (select one only)
National Language (select one only)
41 USA
42 France
43 United Kingdom
44 Germany/Austria
45 Sweden/Finland
46 Denmark/Norway
47 Spain/Latin America
48 Switzerland
49 Canadian French
Options (select as many as needed)
81 Execute escape sequences.
83 Send DC1 when ready, DC3 when busy.
84 LF and CR on reception of LF
85 LF and CR on reception of CR
87 Print all control characters
8A Enable Busy on pin 20 (DTR)
8B Do CR after LF, VT
8C Enable vertical raster graphics. (DP) (Enable 850 graphics, 880)
8E OFF: Default IBM character set 1; ON: Default IBM character set 2. (AT)
8F OFF: Power up last configuration; ON: Power up default configuration. (AT)
93 Set 8-inch line length
99 Enable horizontal raster graphics.(DP & 880)
9A SO selects expanded print for one line.(DP & 880)
9B Power-up online
9C Select 256-byte input buffer.
Emulation Selection (880 AT only) - Offline, press Command, then Menu, then
Accept, then Accept. The software report will print with the currently selected emu-
lation. Press Change. The software selection will print. Press Change again and the
next selection will print. When the desired emulation is printed underlined, press
Accept. Press Normal to save.
Troubleshooting
If the printer is locked up, with the error light on, check the application controller
first, then the print controller.
If the carriage cable has been thrown off the carriage motor pulley, check the cable
for wear. If it is worn, replace it. If it is not worn, replace the carriage motor. (The
carriage motor is the most common cause of this failure.)
Error 11, Carriage jam - If no carriage motion on power-up, check fuses located at
the left rear area of the printer in the power supply section. If fuses are good,
replace the print controller. If carriage moves:
1. Clean carriage shaft; DO NOT OIL.
2. Replace carriage motor
3. Print controller.
4. Application controller.
Communication Problems - These printers frequently lose configuration and defaults
are loaded automatically. If the printer is using parallel I/F the printer will default to
serial. Check configuration first. If this is not the problem, replace the application
controller.
Smudged print may be caused by an improperly adjusted ribbon guide on the nose
of the print head. (See "Adjustments")
Adjustments
Ribbon Nose Guide - Loosen the two screws securing the ribbon guide. Place a flat
plastic card between the print head and platen, making sure it is below the top of
the ribbon guide. Use the gap adjusting arm to close the gap down enough to hold
the card in place. Push the ribbon guide firmly against the card and tighten the
screws.
Cover Removal
Open the front access door. Remove the three screws located along the front edge
of the printer. Remove the two screws located at the back of the printer Remove
the cover.
Field Replaceable Units
Note:
Be sure to print a menu/configuration list before replacing a PCB or logic
containing configuration settings
Selection Data Bits Parity Bits Parity Format Received
Parity Check?
31 7 1 odd no
32 7 1 even no
35 7 1 odd yes
36 7 1 even yes
37 7 1 mark no
38 7 1 space no
39 8 0 N/A N/A
3A 8 1 odd yes
3B 8 1 even yes
DESCRIPTION OEM P/N IBM P/N
Print head 2222738-0002 45F4526
Print head cable 2222649-0001 45F4921
Application controller 2222608-8001 45F4521
Print controller 2222611-8001 45F4522
Power supply 2222621-8001 45F4523
AC power module 2222697-8001 45F4903
Carriage motor 2232582-8001 45F4531
Carriage drive cable 0994233-0002 45F4894
Tractors (set) 2220316-0001 45F4901
Paper advance motor 2222749-0001 45F4922
Paper advance motor (880DP) 0994207-0001 45F4916
Paper out switch 0996169-0001 45F4919
Access door 0994500-0010 45F4897
Window (in access door) 0994476-0001 45F4896
2TI-01 IBM/TSS Internal Use Only
