# US 2019/0171150 A1 · Image forming apparatus

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- Number: US 2019/0171150 A1
- Document ID: US20190171150A1
- Status: Published application
- Kind: A1
- Application number: 15/899,440
- Filed: 2018-02-20
- Published: 2019-06-06
- Earliest claimed: 2017-03-07
- Assignees: Konica Minolta, Inc.
- Applicants: Konica Minolta, Inc.
- Inventors: Hiroyuki ARAI
- Web page: https://patentgrep.com/patent/US20190171150A1

## CPC

- G03G 15/55: {Self-diagnostics; Malfunction or lifetime display}
- G03G 15/00: Apparatus for electrographic processes using a charge pattern (G03G16/00, G03G17/00 take precedence)
- G03G 15/5012: {Priority interrupt; Job recovery, e.g. after jamming or malfunction}
- G03G 15/5016: {User-machine interface; Display panels; Control console}
- G03G 15/502: {relating to the structure of the control menu, e.g. pop-up menus, help screens}
- G03G 15/6508: {Automatic supply devices interacting with the rest of the apparatus, e.g. selection of a specific cassette (matching the image with the size of the copy material G03G15/5095)}
- B41J 29/38: Drives, motors, controls or automatic cut-off devices for the entire printing mechanism
- G03G: ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- B41J: TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS

## Abstract

An image forming apparatus includes: a display part that displays information related to image formation; a detection part that detects an abnormal paper feeding when a paper sheet is fed from a paper feed tray storing a paper sheet; and a hardware processor that causes the display part to display a paper feed adjustment screen to which a user can input an adjustment of a paper feed condition at a time of paper feeding, when the detection part detects an abnormal paper feeding.

## Claims

### Claim 1

An image forming apparatus comprising:
a display part that displays information related to image formation;
a detection part that detects an abnormal paper feeding when a paper sheet is fed from a paper feed tray storing a paper sheet; and
a hardware processor that causes the display part to display a paper feed adjustment screen to which a user can input an adjustment of a paper feed condition at a time of paper feeding, when the detection part detects an abnormal paper feeding.

### Claim 2 (depends on 1)

The image forming apparatus according to claim 1, wherein
paper feeding can be performed from a plurality of paper feed trays, and
the image forming apparatus further includes a hardware processor, and in a case where an abnormal paper feeding of a first paper feed tray is detected by the detection part, when there is a second paper feed tray capable of feeding a paper sheet instead of the first paper feed tray among the plurality of paper feed trays, the hardware processor causes the second paper feed tray to feed a paper sheet continues a job.

### Claim 3 (depends on 2)

The image forming apparatus according to claim 2, wherein
when an adjustment of a paper feed condition of the first paper feed tray and releasing of an abnormal paper feeding are completed, the hardware processor changes paper feeding from the second paper feed tray to paper feeding from the first paper feed tray.

### Claim 4 (depends on 1)

The image forming apparatus according to claim 1, further comprising
a specification part that specifies a cause of the abnormal paper feeding,
wherein the hardware processor causes the display part to exclusively display the paper feed adjustment screen of a paper feed condition according to the cause specified by the specification part.

### Claim 5 (depends on 4)

The image forming apparatus according to claim 4, wherein
when there are a plurality of paper feed conditions related to the cause specified by the specification part, the hardware processor causes the display part to display the paper feed adjustment screen in descending order of relevance that is set in advance.

### Claim 6 (depends on 1)

The image forming apparatus according to claim 1, further comprising:
a specification part that specifies a cause of the abnormal paper feeding;
a calculation part that calculates an adjustment value of a paper feed condition at a time of paper feeding, based on the cause of the abnormal paper feeding specified by the specification part, and at least one of a paper type, a paper basis weight, a paper size, and a number of paper sheets fed before the abnormal paper feeding; and
a change part that changes a paper feed condition at a time of paper feeding based on an adjustment value calculated by the calculation part.

### Claim 7 (depends on 6)

The image forming apparatus according to claim 6, wherein the hardware processor causes the display part to display the paper feed adjustment screen displaying the adjustment value calculated by the calculation part.

### Claim 8 (depends on 1)

The image forming apparatus according to claim 1, further comprising:
one or a plurality of air blowers that blow air to a paper sheet stored in the paper feed tray and feed a paper sheet after lifting the paper sheet;
a feeding part that feeds a paper sheet stored in the paper feed tray to outside the paper feed tray; and
a regulating part that regulates a position of an end part of a paper sheet fed from the paper feed tray, wherein
the paper feed condition includes at least one of an air volume, an air direction, and an air blowing timing by the one or a plurality of air blowers, selection of an air blower to be operated among the one or a plurality of air blowers, an operating time of the feeding part, a position of the regulating part, and presence/absence of re-execution of a paper feeding operation.

### Claim 9 (depends on 1)

The image forming apparatus according to claim 1, further comprising
a storage part that stores an adjustment result of the paper feed condition executed by a user, as paper profile data for each paper type, wherein
the storage part reflects the adjustment result to the paper profile data of a fed paper sheet, and stores the adjustment result when proper paper passing has been performed for a predetermined number or more of paper sheets.

### Claim 10 (depends on 1)

The image forming apparatus according to claim 1, further comprising
a storage part that stores an adjustment result of the paper feed condition executed by a user, as paper feed tray adjustment data for each paper feed tray, wherein
the storage part reflects the adjustment result to the paper feed tray adjustment data of a paper feed tray that has performed paper feeding, and stores the adjustment result when proper paper passing has been performed for a predetermined number or more of paper sheets.

### Claim 11 (depends on 1)

The image forming apparatus according to claim 1, wherein, when a number of times of an abnormal paper feeding detected by the detection part reaches a predetermined number of times, the hardware processor causes the display part to display the paper feed adjustment screen.
