7. Detailed Description
Overview
General Operation Sequence
Here is a brief summary of what happens when an original is scanned and printed with roll paper from
Roll Unit 1. Every phase of this operation summary is described in detail in later sections of this
document.
The general operation sequence is composed of these steps:
1 Power ON
2 Scanning
3 Paper Feed
4 Printing
5 Cutting
6 Paper Exit and Job End
1 Power ON
1. The machine checks for paper jams, and issues a jam alert if one is detected.
2. The maintenance unit print head caps are lowered to uncap the print heads.
3. The horizontal motor switches ON and moves the carriage to the start position and then back to the
maintenance unit.
4. The positions of the print head OCFS feelers are checked to determine whether sufficient ink
remains in each sub tank.
5. The print head sub tanks are air purged and filled as needed and then the print heads are cleaned.
6. The print heads are capped.
7. The printer beeps twice when it is ready for operation.
• When the machine is powered on, especially after a cold start, the machine automatically checks
temperature, ink level, and air sensors. Then it cleans and re-fills the print heads. This can require
more time, depending on how long the machine has been off.
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