Olivetti CMS 140 B euro, Service Manual

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686770R Service Manual 2-1
2. SPECIFICATIONS AND
OPERATING PRINCIPLES
2.1 SPECIFICATIONS
2.1.1 FEATURES
The Micro Printer is designed for use with calculators.
It offers the following features:
• Ultra-compact and lightweight design.
• Movable type for sharp printing quality.
• High printing speed using a mechanism that can
return the carriage from any column position.
• Silent printing.
• Quick feeding and paper free functions.
• Can run on size AAA manganese batteries (low-
power drive).
• Uses ordinary paper.
• Requires no motor speed control.
2.1.2 SPECIFICATIONS
The main printer specifications are listed below.
Print method
Serial printing with movable type
Carriage width
Maximum of 13 printable columns (including 2 symbol
columns)
Character position
On symbol column side: 12 pos 2 empty
positions
On numeric column side: 14 positions
Character size
1.6 (W) x 2.8 (H) mm
Intercharacter intervals
Between numerics: 2.1 mm
Between a numeric and a symbol: 2.6 mm
Line spacing
4.6 mm
Print speed
Average printing speed at 6.0 VDC, 13-column printing:
Typically 0.7 I/s
6-column printing: Typically 1.4 I/s
Paper (supplied by the user)
Type: Regular paper roll
Size: Width 57.5 mm ± 0.5 mm
Roll diameter: 80 mm or less
Thickness: 0.06 ~ 0.085 mm
Average weight: 47 g/m 2 ~ 64 g/m 2 (40 ~ 55 kg/
1000 sheets/1091 x 788 mm)
Paper feeding
Typically 4.3 Ips. Fast paper feeding is also possible,
and a paper release mechanism is provided.
Inking
Ink roller method
Ink roller life: 700,000 characters
Standard: IR-30 (IR-40 is also applicable)
Motor
Terminal voltage: 6.0 VDC
Average current: Approximately 0.14 A
(during 13-column, 7-character
shift printing at 6.0 VDC,
25°C/77°F)
Sensor
Mechanical point of contact
Reset signal R, Timing signal T, and Sub-timing
signal t
Trigger coil (electromagnet)
Terminal voltage: 6.0 VDC
D.C. resistance: 16.7
Ω
(at 25°C/77°F)
Connection method
Jumper wire on printer side
Guaranteed operating temperature
0° - 40°C / 32° - 104°F
(guaranteed printing temperature:
5° - 40°C/41° - 104°F)
Reliability
MCBF: 300,000 columns
External dimensions
86 (W) x 58.4 (D) x 19 (H) mm
(3.39 (W) x 2.30 (D) x 0.75 (H) inch)
Weight
Approximately 80 g (0.21Ib)