Preliminary On-Site Checkout; The Troubleshooting Process; Before You Go To The - Canon ColorPASS-Z20e Service Manual

1 Preliminary On-site Checkout

This chapter identifies the source of common problems that may occur with the
ColorPASS and suggests ways of correcting them.

1.1 The Troubleshooting Process

The troubleshooting process is designed to eliminate the most obvious causes of failure
before progressing to more complex solutions. "Where problems occur" on page 5-2, gives
an overview of the ColorPASS system and indicates areas most likely to require trouble-
shooting.
1. Problems with initial installation
If the ColorPASS fails to complete its initial startup and reach the Idle (ready to print)
screen, the most likely cause is a loose cable or board connection. See "Accessing
ColorPASS internal components" on page 4-4 for instructions on opening the
ColorPASS, and "Checking ColorPASS internal connections" on page 4-7 for descrip-
tions of ColorPASS parts and connections.
If a loose part or cable is not the cause of the problem, see "Checking the ColorPASS as
a stand-alone unit" on page 5-8, and "Checking the entire ColorPASS system" on page
5-13.
2. Try a phone check before you go to the customer site
"Before you go to the customer site" on page 5-4 suggests areas you should check out
before making a call to the customer site. With a phone call you can find out if the prob-
lem is a simple operating failure or a failure caused by a network or configuration
change. You can ask the customer to check for loose cables on the back of the
ColorPASS and loose connections at a power strip or outlet.
3. Check for obvious causes of problems
"Preliminary on-site checkout" on page 5-5 takes you through the initial checkout when
you arrive at the customer site. You should check the ColorPASS internally and exter-
nally for the most common problems such as loose cables, connectors, and boards.
4. Check the ColorPASS as a stand-alone unit
"Checking the ColorPASS as a stand-alone unit" on page 5-8 describes the checks you
should perform on the ColorPASS if the initial checks fail to identify the cause of a
problem. With the ColorPASS disconnected from the copier and the network, test the
ColorPASS as a stand-alone unit.
This section describes possible startup errors and explains how to run and interpret
ColorPASS startup diagnostics.
5. Check the entire ColorPASS system
"Checking the copier interface" on page 5-13 explains how to print the Test Page from
the ColorPASS. "Checking network connections" on page 5-15 includes guidelines for
checking the network connections between the ColorPASS and the computers or work-
stations to which it is connected, and also provides information on printing problems.
COPYRIGHT© 2000 CANON INC. 2000 2000 2000 ColorPASS-Z40e/Z20e REV.0 AUG. 2000
CHAPTER 5 TROUBLESHOOTING
5-1