Canon imageRUNNER ADVANCE 4551i Service Manual page 560

As shown in the figure below, the mask screen is displayed when this function is enabled.
Canon Remote Operation Viewer screen
Functional Specification
The specifications of this function are shown below.
• When this function is enabled, a mask screen is displayed on the Control Panel. When the function is disabled, the original
screen is displayed again.
• This function is disabled when the following operations are performed.
• Press [LUI MASK] on the service mode top screen.
• Exit Remote Operation Viewer.
• The remote access is disconnected due to a network failure, etc.
• The machine is shut down (power down) or restarted.
• If this function is disabled while the service mode is being operated, the service mode is forcibly exited, and the previous
screen is displayed. (However, the service mode is not forcibly terminated if the Updater screen has been accessed from
service mode.)
• When this function is enabled, all operations (operations from the Touch Panel or hardware keys) other than screen
brightness adjustment and operation on the Energy Saver key are disabled.
■ Procedure for Enabling This Function
The procedure for enabling this function is shown below.
1. Use the Remote Operation Viewer to access the machine, and start service mode.
The mask screen is
displayed on
the Control Panel
screen when this
function is enabled.
Examples of Screen Display
Example of the displayed mask screen
547
8. Service Mode
Operation Panel