IBM Infoprint 1130, Service Manual

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3-36
Service Manual
IBM Infoprint 1130/1140
Minimum Stroke Width Paper Source and Formatted Size
All three pages contain print quality test information including one
page of grayscale with two black squares and one all black page.
Printing Menu Settings Page
Note: This test page must be printed on letter, legal or A4 paper.
To print the Menu Settings Page:
1. Select the TESTS MENU.
2. Select Print Menus from the TESTS MENU.
The page contains the following information:
•
A list of all the printer settings contained in the operator panel
menus and their values.
•
A list of the installed options and features such as RAM memory
card assembly, optional input paper trays, envelope feeder,
duplexer, output bins, flash or disk.
•
Printer information such as serial number, page count, installed
RAM, engine code level, RIP code level, envelope feeder code
level, tray 1-5 code levels, output bin 1-3 code levels, operator
panel code levels, font ROM version and SRAM availability.
Auto Compensator Operation
The auto compensator is a paper pick device that generates its own
normal force. This force generation is inherent in the fundamental
design of the pick arm. If light media is used, it picks very gently. If a
heavy media is used, it picks very aggressively. No customer
adjustments are necessary, therefore no special trays are needed
for card stock or labels.
The gearing in the arm is designed so the input torque from the
motor produces a movement about the pivot of the arm. This
movement produces a downward force at the pick rolls. The friction
between the pick roll and the paper produces a frictional locking
condition. If the paper is physically held and not allowed to feed,
then the motor stalls. Slippage between the roll and the paper is
theoretically impossible. When the motor is energized the pick rolls