TITLE
    ImageWriter II/L: Specifications and Notes (9/94)
Article ID:
Created:
Modified: 		5353
4/3/90
9/1/94
TOPIC



    In late February, 1990, a revised ImageWriter II rolled into distribution. This revised printer incorporates a new enclosure, different color adjustment assembly, and a new layout of the electronics including a changeover to a switching power supply. The ImageWriter II/L's electronic interface, DIP switch definitions, plus the paper handling mechanism have not changed.

    Note: In future articles that deal specifically to the new ImageWriter II, we
    will use the term "ImageWriter II/L." The "L" follows the service
    designation.

    This article describes changes for the new printer.

DISCUSSION


    Change List
    -----------
    These are the major changes to the ImageWriter II:

    - The bottom housing is now a single molded piece of plastic. The metal pan at
    the bottom no longer exists. Both legs are now an integral part of the
    enclosure and are not removable. The power and serial connectors have been
    moved to the sides of the printer. Access to all parts in the ImageWriter II
    is now from the top.

    - The color adjustment assembly has changed. The adjustment procedure is
    documented in the Service Manual.

    - The driver circuitry has been combined with the main logic board and that
    separate circuit board has been eliminated.

    - The new power supply is now a switching type. This lowers the unit's weight
    and overall power consumption. The universal power supply option has been
    eliminated; there are only 100 V or 200 V supplies.

    - The on-board RAM buffer has been increased to 24K bytes.The old 32K byte
    memory-option card has no effect with this new printer.

    Specification Changes
    ---------------------
    These changes result in the following difference in specifications:

    Old ImageWriter II New Imagewriter II
    ------------------ ------------------
    Weight 25 pounds (11.36 kg) 15 pounds (6.7 kg)

    Power Supply Options
    100 V 108-132 VAC, 60 Hz 90-132 VAC, 50/60 Hz
    200 V 90-264 VAC, 50/60 Hz 180-264 VAC, 50/60 Hz

    Power Consumption
    Operating 180 watts maximum 77 watts maximum
    Standby 20 watts maximum 16 watts maximum

    Input Buffer Size 2K bytes, 24K bytes
    32K bytes with
    memory option card

    Otherwise all other specification remain the same as with the previous ImageWriter II.

    These changes reduce the weight and power consumption of the printer. However, the operation and usage of the revised ImageWriter II have not changed from the previous design.

    Identification
    --------------
    Although the new ImageWriter II retains the old name, the marketing model number has changed to C0090LL/A. The serial number starts with the prefix TJ945100.

    The new unit can be identified easily. Notice that the power and serial connectors do not plug into the leg, but to the rear side of the printer.

    Service
    -------
    The new enclosure design greatly simplifies the servicing of the unit. For additional information on take-apart, refer to the ImageWriter II/L ("L" is a Service only designation) s0/on in Volume II of the "Apple Service Technical Procedures Cross Family Peripheral Guide."

    Technical Specifications
    ------------------------
    Printing Specifications:

    Method: Impact dot matrix, logic seek (line by line)

    Maximum Speed (characters per second at characters per inch):
    * Draft mode: 250 cps @ 10 cpi
    *╩Correspondence mode: 180 cps @ 10 cpi
    *╩Near Letter Quality mode: 45 cps @ 10 cpi

    Maxinum Line Length: 8 inches

    Paper Feed Direction: Forward and reverse

    Maximum Line Feed Speed: 24 lps @ 6 lpi

    Paper Feed Method:
    * friction
    *╩friction/pin-feed

    Ribbon:
    * Black ribbon
    -- continuous fabric
    -- 13 by 13000mm
    -- Capacity: 2 million characters
    * Color ribbon
    -- Four colors: magenta, cyan, yellow, black
    -- continuous
    -- 21 by 18000mm

    Character Specifications:

    Dot Matrices for each Character Format:

    dots wide dots high
    Standard: 7 8
    Draft: 12 8
    Near Letter Quality: 16 16
    Custom: 16 max. 8 max.
    -- Custom fonts are user-programmable and loaded down to the
    ImageWriter II.

    Standard Character Sets:
    *╩ASCII (alphanumeric and symbols): 96
    * European language characters: 28
    * Mouse Text characters: 32

    Vertical Dot Spacing: 1/72 of an inch

    Horizontal Pitches and Graphic Densities:

    Characters Characters Dots
    per inch per line per inch (approx)
    17 136 136
    15 120 120
    13.4 107 107
    12 96 96
    10 80 80
    9 72 72
    Proportional-1 variable 160
    Proportional-2 variable 144

    Line Spacing:
    -- 1/144 to 99/144 of an inch
    -- selectable in increments of 1/144 of an inch

    Paper Specifications

    Width:
    -- 3.5 to 9.5 inches (88.9 to 241.3 millimeters) pin to pin (pin feed)
    -- 10 inches maximum

    Thickness:
    -- 0.002 - 0.011 inch (0.05 - 0.28 millimeters)
    -- Original plus 3 copies maximum

    Types:
    * Single sheets
    * Pin-feed paper
    4.0 to 9.5 inches bewteen hole centers

    Power Specifications:

    Options:
    Low-range: 90-132 VAC, 50/60 Hz;
    High-range: 180-264 VAC, 50/60 Hz;

    Consumption:
    Operating: 77 watts maximum
    Standby: 16 watts maximum

    Interface Specifications:

    Data Input Form: RS-232 8-bit asynchronous serial
    -- 1 start bit
    -- 8 data bits
    -- 1 stop bit (no parity)

    Data Input Codes:
    Characters: ASCII, 8- or 7-bit
    Graphics: 8-bit binary

    Transmission speeds: 300, 1200, 2400, or 9600 baud

    Input Buffer Size: 24K bytes

    Connections: Mini-circular connector, 8-pin socket or equivalent

    Cable Connector: Mini-circular connector, 8-pin plug or equivalent

    Physical Dimensions:

    Weight: 15 pounds (6.7 kilograms)

    inches millimeters
    Width: 17.0 431.8

    Heigth: 12.0 304.8

    Depth: 5.0 127.0

    Environmental Specifications:

    Ambient Temperature:

    Degrees
    Fahrenheit Celsius
    Operating: 50 to 104 10 to 40
    Storage: -40 to +116 -40 to 47

    Humidity:
    Operating: 20% to 95% relative humidity, noncondensing
    Storage: 10% to 95% relative humidity, noncondensing

    Acoustics, Operating:
    55 dBa maximum sound pressure at by-stander position (as defined in
    American National Standard document ANSI S1.29-1979)


    Article Change History:
    1 Sep 1994 - Reviewed and combined information.

    Support Information Services


Document Information
Product Area: Printers
Category: ImageWriters
Sub Category: ImageWriter II and II/L

Copyright © 2000 Apple Computer, Inc. All rights reserved.