Monroe 6120 User Guide

 

1

 

 

Your Monroe 6120 was built with the highest standards 

of quality and workmanship.  Because we have over 

nine decades of experience in the design and 

manufacture of fine office equipment, you have a 
product you can rely upon.  

Quality…Performance…Value… in calculators for you or 

your Company. 
 

Monroe 6120 Calculators are backed by a 

comprehensive warranty that covers parts and labor.  

And that same comprehensive protection, and 
convenient service, can be extended for as long as you 

own your calculator.  The Monroe Maintenance 

Agreement is renewable annually at your option. 
 

At Monroe, service is not just a slogan, it’s a promise 

from the company that has made customer service its 
top priority.  When you need us, we respond. 
 
 
 
 
 
 
 
 

 

1.Operation and Maintenance.………………….…2 
 
2.Replacing Ink Ribbon……………………….……2 
 
3.Installation of Paper Holder……………………...3 
 
4.Loading Paper…………………………………….3 
 
5.Displayed Symbols……………………………….3 
 
6.Keyboard Layout………………………………….4 
 
7.Printed Symbols…………………………………..7 
 
8.Overflow Error Conditions……………………….7 
 
9.Calculation Example...…………..……….………8 

 

10.Technical Specification.…..…………………..16 

 

11.Ordering supplies...………..…………………..17 

About Your Monroe 6120 
 

Our new Monroe 6120 will give you the opportunity to solve a 

variety of figurework problems more accurately and efficiently than 
ever before.  This instruction book will help you by providing 

complete, step-by-step information on the operation and application 
of your Monroe 6120.  Whether you’re an experienced operator or a 

beginner, you’ll gain a practical, working knowledge of your Monroe 

6120 after reading this book. 

 
 

We want to be sure you take advantage of the many benefits 

Monroe value has to offer.  If you have any questions about a 
particular feature or application, don’t hesitate to call 888-666-7631. 

 

Monroe 6120 
 

 

 
Please record the Serial Number of your new calculator in the space 

provided above and retain this instruction booklet for your records 
and future reference.  The Serial Number is located on the bottom 
case cover of your calculator. 

 

Thank you, 

 
Monroe Systems for Business  

 

❢

 

WARNING 
 
NOTE: 

This equipment has been tested and found to comply 

with the limits for a Class B digital device, pursuant to Part 15 of the 
FCC Rules.  These limits are designed to provide reasonable 

protection against harmful interference in a residential installation.  

This equipment generates uses and can radiate frequency energy 
and, if not installed and used in accordance with the instructions, 

may cause harmful interference to radio communications.  However, 

there is no guarantee that interference will not occur in a particular 
installation.  If this equipment does cause harmful interference to 

radio or television reception, which can be determined by turning 

the equipment off and on, the user is encouraged to try to correct 

the interference by one or more of the following measures: 
 
ƒ

 

Reorient or relocate the receiving antenna. 

ƒ

 

Increase the separation between the equipment and receiver. 

ƒ

 

Connect the equipment into an outlet on a circuit different from 

that to which the receiver is connected. 

ƒ

 

Consult an experienced radio/TV technician for help. 

 
If necessary, the user should consult Monroe or an experienced 
radio/television technician for additional suggestions.