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Service Source
ImageWriter II
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Service Source
Basics
ImageWriter II
Basics General Information - 1
General Information
Paperless Printer Microviewer
This manual contains only the Specifications, Symptom
Charts and the Illustrated Parts List chapter for the
Troubleshooting
Take Apart
Adjustments
ImageWriter LQ. The rest of the procedures are in the form
of a Paperless Printer file located in the Printables folder.
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Service Source
Specifications
ImageWriter II
Specifications Interfaces - 1
Interfaces
Type
Buffer
Baud Rate
Connector
RS-422/RS-232 (serial)
24K
300, 1200, 2400, or 9600 (user selectable)
Mini DIN–8
Specifications Performance - 2
Performance
Print Modes/Speed
Line-Feed Rate
Maximum Copies
Draft: 250 characters per second (cps)
at 10 characters per in. (cpi) (2.5 pages per minute)
Standard: 180 cps (2 pages per minute)
Near-Letter Quality: 45 cps (.5 pages per minute)
Actual throughput will vary depending on computer and software.
Four inches per second (ips)
Original plus three
Specifications Character Format - 3
Character Format
Fixed Alphanumeric Symbols
Custom (Downloaded) Characters
Draft mode: up to 12 by 8 dot matrix
Standard mode: up to 7 by 8 dots
Near-letter-quality mode: up to 16 by 16 dots
Variable width, up to 16 by 8 dots
Specifications Character Pitches - 4
Character Pitches
Draft, Standard, and Near-Letter Quality
Proportional Text
9–17 cpi (72–136 characters per line), through use of normal
and double-width modes
144 or 160 dpi
Specifications Ribbons - 5
Ribbons
Type
Available Colors
Fabric; continuous loop
Black
(Typical life: two million characters)
Four-color (magenta, cyan, yellow, black)
(Typical life: one million characters per color)
Specifications Paper Options - 6
Paper Options
Format
Width
Thickness
Cut sheet or fanfold continuous
3–10 in. (on pin-feed paper, hole centers must be spaced
between 4 and 9.5 in.)
.05–.28 mm
Specifications Miscellaneous - 7
Miscellaneous
Print Method
Built-In Character Sets
Line Spacing
Graphic Densities
Impact dot matrix
American, Italian, Danish, British, German, Swedish, French,
and Spanish
Selectable by using DIP switches or appropriate software
6 or 8 lines per in.; user programmable in increments of
1/144 in. (up to 99/144 in.)
72, 80, 96, 107, 120, 136, 144, and 160 dpi
(maximum dots per line: 1,280)
Specifications Electrical - 8
Electrical
Voltage
90–132 VAC; 50 or 60 Hz
Specifications Physical - 9
Physical
Dimensions
Weight
Height: 5 in. (12.7 cm)
Width: 17 in. (43.2 cm)
Depth: 12 in. (30.5 cm)
15 lb. (6.7 kg)
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Service Source
Troubleshooting
ImageWriter II
Troubleshooting General/ - 1
General
The Symptom Charts included in this chapter will help you
diagnose specific symptoms related to your product. Because cures
are listed on the charts in the order of most likely solution, try
the first cure first. Verify whether or not the product continues to
exhibit the symptom. If the symptom persists, try the next cure.
(Note: If you have replaced a module, reinstall the original module
before you proceed to the next cure.)
If you are not sure what the problem is, or if the Symptom Charts
do not resolve the problem, refer to the Flowchart for the product
family.
For additional assistance, contact Apple Technical Support.
Troubleshooting Symptom Charts /Quick Problems - 2
Symptom Charts
Quick Problems
Error light blinks 1 Verify that carrier cover is secure.
2 Verify that carrier cover magnet is in place.
3 Try known-good software.
4 Verify that option card dip switch is open/off with no card
installed.
Select light off, error light on
No printing or garbled printing
1 Add paper or reset paper feed tray.
2 Check for paper feed problem.
1 Check interface cable connection between printer and
computer.
2 Verify that DIP switches (2-1 through 2-4) are set
correctly.
Troubleshooting Symptom Charts /Quick Problems - 3
Software-specific problem
Prints ok for a while, then prints garbage
Overprinting 1 Verify that program being used is set for correct line
Light printing 1 Change ribbon cartridge.
Erratic carrier motion, loud hum
Try known-good software.
Set DIP switch 2-3 to correct serial protocol.
spacing and line length.
2 Adjust impression lever (see Adjustments).
Remove black tube-shaped shipping protection from carrier
shaft.
Troubleshooting Symptom Charts /Quick Problems - 4
Printing has
squashed lines,
misregistration
problems when using
pin feed paper
1 Clear entry and exit path of obstructions.
2 Check whether manual paper sensor, paper guide, or paper
bail exerts too much pressure on paper.
3 Verify that tractor assembly does not let paper slip.
4 Check printhead gap (see Additional Procedures).
5 Avoid printing in top and bottom one inch of paper.
6 Try using 20-pound paper.
Troubleshooting Symptom Charts /Print Quality - 5
Print Quality
Compressed first or second line
Print is darker or lighter on one side
Top row of dots missing
Characters
sometimes appear
smudged, or top of
form gradually creeps
down page in one-line
increments
Replace main board.
Remove or install shims. See General Information topic in Basics
chapter. Open Additional Procedures document and refer to Shims
topic.
Perform ribbon adjustment (refer to Adjustments).
Verify that ImageWriter II driver software is most current
version.
Troubleshooting Symptom Charts /Print Quality - 6
Power light on, no printing
Missing dots 1 Check flexible cable connection.
1 Verify that ribbon frame assembly is riding on spiral ridge
of color ribbon cam (see Adjustments).
2 Remove dot head, and verify that pins in connector on dot
head board are not bent.
3 Go to Troubleshooting Table 2.
2 Remove dot head, and verify that pins in connector on dot
head board are not bent.
3 Go to Troubleshooting Table 5.
Troubleshooting Symptom Charts/Carriage Movement - 7
Carriage Movement
Carriage doesn’t move; LEDs are not lit
Carriage doesn’t move; LEDs are lit
Carriage assembly
moves to left and does
not return to center
1 Replace drive board.
2 Replace transformer.
3 Replace filter assembly.
1 Replace main board.
2 Replace drive board.
1 Check switch on print head board. If switch is frozen,
replace print head board.
2 Replace main board.
3 Replace print head board.
4 Replace flexible ribbon cable.
5 Replace drive board.
Troubleshooting Symptom Charts /Carriage Movement - 8
Carriage moves to left and hums very loudly
Self-test after takeapart produces no
carrier movement
(panel lights on)
Carriage assembly grinds or is hard to move
1 Check flexible ribbon cable connection between drive board
and carriage assembly.
2 Replace flexible ribbon cable.
3 Replace print head board.
1 Remove bottom cover and verify that wires to carrier motor
are not pinched. Replace worn wires.
2 Replace fuse on drive board.
3 Replace drive board.
1 Remove bottom cover and verify that wires to carrier motor
are not pinched. Replace worn wires.
2 Replace fuse on drive board.
3 Replace drive board.
Troubleshooting Symptom Charts /Paper Feed - 9
Paper Feed
Grinding during paper feed
Paper-out sensor
interferes with
paper path; left side
of paper fits
“tighter” under
platen than does right
side
1 Remove platen knob and verify that there are no obstructions
in gearing beneath knob.
2 Adjust paper guide (refer to Adjustments).
3 Replace paper feed motor.
4 Replace drive board.
1 Verify that mechanical paper sensor is properly positioned.
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