Cannot adjust printhead. ................................................................................................................................ 650

Borderless printng not possible. Paper stretched or shrank. ........................................................................... 649

Before borderless printing, move the blue platen switch. ................................................................................ 649

Borderless printng not possible. ..................................................................................................................... 645

Blue platen switch is dirty. .............................................................................................................................. 649

Move the blue platen switch No.xx to the right. (xx represents a number) ....................................................... 649

Check printed document. ............................................................................................................................... 649

Cannot print as specified.

"Lift the release lever and replace paper with A4/LTR (vertical) or larger."

Cause

The loaded paper is too small.

"Lift the release lever and replace roll with 10 in. wide or larger roll."

Cause

The loaded paper is too small.

Borderless printng not possible. Paper stretched or shrank.

The loaded roll has expanded or contracted due to environmen-

tal conditions, making it wider or narrower than the supported

width for borderless printing.

Before borderless printing, move the blue platen switch.

Cause

The blue Switch on the platen was set to the side oppo-

site ● when a borderless print job was received.

Blue platen switch is dirty.

Cause

The blue Switch on the platen is dirty.

Move the blue platen switch No.xx to the right. (xx represents a number)

The printer has detected that the blue Switch on the platen nee-

ded in maintenance during printing is set away from the ● mark.

Check printed document.

Cause

The Printhead nozzles are becoming clogged.

User's Guide

Corrective Action

Switch to paper A4/Letter (vertical) or larger.

Corrective Action

Load a roll 10 inches wide or larger.

Cause

Before borderless printing, set the blue Switch on the platen to the ● side.

Open the Top Cover and clean the blue Switch on the platen.

(See "Cleaning Inside the Top Cover.")

Cause

If printing is faint, clean the Printhead.

(See "Cleaning the Printhead.")

Press the OK button to stop printing.

Use each type of paper only where the recommended environ-

mental conditions are met. For details on environmental condi-

tions for various paper, see the Paper Reference Guide.

(See "Displaying the Paper Reference Guide.")

Corrective Action

(See "Setting the Blue Switch on the Platen.")

Corrective Action

P.591

➔

Set blue platen Switch of the indicated number toward the ● side.

(See "Setting the Blue Switch on the Platen.")

Corrective Action

P.578

➔

Cannot print as specified.

Corrective Action

P.335

➔

P.621

➔

Corrective Action

P.621

➔

649

Table of Contents

Messages Regarding Printing Or Adjustment; Cannot Print As Specified; Borderless Printng Not Possible. Paper Stretched Or Shrank; Before Borderless Printing, Move The Blue Platen Switch - Canon iPF840 User Manual