JPS6370881A - Cleaning device for heat roller - Google Patents

Abstract

PURPOSE:To prevent 'sag' and 'oblique motion' of a paper web, by constituting the titled device so that the paper web can be wound, irrespective of a copy operation of a copying machine. CONSTITUTION:The titled device is provided with a web roller 1 for setting a paper web 4, a winding roller 3 for winding successively the paper web 4, a pressure roller 2 which is placed between the web roller 1 and the winding roller 3, and pressing the paper web 4 against a heat roller 5, and a controlling circuit 7 of a driving motor 6 for driving the pressure roller 2 and the winding roller 3. A rotation peripheral velocity given by the driving motor 6 is set so that that of the winding roller 3 is higher than that of the pressure roller 2. However, as the paper web 4 is wound, its thickness increases and the peripheral velocity of the winding roller 3 becomes high, therefore, a slide mechanism is formed by using a torque limiter 65, and torque-up of the driving motor 6 is prevented by absorbing an increase portion.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a heat roller cleaning device using a paper web.

The apparatus of the present invention can be driven independently of the copying operation.

[Prior Art] Conventionally, a paper web (non-woven paper impregnated with silicone oil) has been used as a cleaning device for the heat roller of a copying machine.
A device using this is provided.

This consists of a web roller on which a paper web is set in a roll, a take-up roller that sequentially winds the paper web from the web roller, and a pressure roller that presses the paper web that is being wound up against a heat roller. It is a device.

With this device, the paper web is pressed against the heat roller of the copying machine, and dirt such as toner adhering to the surface of the heat roller is removed, impregnated silicone oil is attached to the surface of the heat roller, and the paper web is heated. Improves the release of copy paper from the rollers.

[Problems to be Solved by the Invention] In the above, the silicone oil impregnated into the paper web is applied to the vicinity of the outer periphery of the paper web wound into a roll, in other words, the end of the paper web at the beginning of use. It tends to be non-uniform in the vicinity. This is to prevent the silicone oil from getting sticky from the paper web during sales, etc., so that the area around the yJ markings is not impregnated with much silicone oil.

Therefore, if the use of the paper web is started from the end, problems such as toner offset (if there is little oil) and oil stains on the copy paper (if there is a lot of oil) will occur.

In order to avoid this, when setting the paper web in the device, the service person manually feeds the starting end so that the part uniformly impregnated with silicone oil comes into pressure contact with the heat roller. I had to do this. However, this requires time and effort, and also has drawbacks such as getting the hands dirty. In addition, since the process is done manually, the paper web tends to sag, skew, etc.

The present invention is intended to solve these problems.

[Means and effects for solving the problems] The present invention provides: a web roller for setting vaporware; a take-up roller for sequentially winding up the paper web set on the web roller; a pressure roller that is disposed between the take-up roller and presses the paper web against the heat roller; a drive mechanism that drives the press roller and/or the take-up roller; and a drive mechanism that is independent of the copying operation of the copying machine. an input means for commanding the drive of the drive mechanism; and 1iTIIl for controlling the drive of the drive mechanism in accordance with the command independently of normal control when the command is input.
A heat roller cleaning device comprising: i1 means;

In the above, the web roller, take-up roller, pressing roller, and drive mechanism may be the same as conventional ones.

The input means may be configured with a key switch, or may be configured to detect that vaporware is installed in the device and automatically turn on the device.

11. The driving means normally controls the drive mechanism in conjunction with the operation of the copying machine, but when the input is received, the drive is controlled in a manner specified by the input. .

[Examples] The present invention will be described below with reference to specific examples that illustrate the invention.

FIG. 1 is a perspective view of the main parts of the embodiment device, and FIG.
FIG. Moreover, FIG. 3 is a schematic side view of the paper web at the time of delivery.

As shown in the figure, this apparatus includes a web roller 1 for setting a paper web 4, a winding roller 3 for sequentially winding up the paper web 4 set on the web roller 1,
a press roller 2 disposed between the web roller 1 and the take-up roller 3, which presses the paper web 4 against the heat roller 5; and a drive that drives the press roller 2 and the take-up roller 3 via gears. Motor 6 and signal S/
A control circuit 7 that controls the drive motor 6 by inputting signals (including signals from a switch (not shown) serving as an input means)
and has.

The circumferential rotational speed given by the drive motor 6 is set to be slightly larger for the take-up roller 3 than for the suppression roller 2. This is to prevent the paper web being wound up from sagging. However, as the paper web 4 is wound up, its thickness increases and the winding roller 3
Since the circumferential speed of the drive motor 6 increases, a torque limiter 65 is used to provide a sliding mechanism to absorb the increase and increase the speed of the drive motor 6.
This prevents the torque from increasing. In addition, the winding roller 3
A one-way clutch 66 is provided on the other side of the shaft to prevent reverse rotation. In addition, web roller 1
is a driven roller which rotates as the paper web advances and is configured to receive frictional force from the brake plate 10 in order to prevent the paper web 4 from sagging.

In this configuration, the drive motor 6 is connected to the pjlIm circuit 7.
Normally, the device is driven in accordance with the copying process of the copying machine. That is, the paper web 4 is moved a predetermined distance toward the winding roller 3 every time a predetermined number of copies are made. This allows the paper web 4
is in close contact with the surface of the heat roller 5 and moves relative to the surface of the heat roller 5 to clean the surface of the beat roller and apply silicone oil.

Further, when there is a switch input to be described later, the copying machine is driven according to the control described below, regardless of the operation of the copying machine.

FIG. 4 is a main flowchart showing the main operations of the copying machine equipped with the apparatus of this embodiment, and FIG.
12 is a flowchart showing details of the process 8110 in the figure.

First, FIG. 4 will be explained.

Initial settings are performed by turning on the N source (8102), and then an internal timer is started that defines the time for one routine and provides the basis for various timer counts (8104).
.

Next, various key manual routines are executed (5106), and a copy wJ production routine is executed by turning on the print key (8108).

In addition, the web i (J II) routine shown in detail in FIG.
14), return to 8104 φ.

FIG. 5 will be explained below.

Before turning on the main switch of the copying machine (S202)
, when the web set switch is turned on (S204),
Flag F1 is set (S206>).

When the main switch is turned on in this state (S202.
5208), the drive motor 6 is driven (S210),
Winding up of the paper web 4 is started. The drive is
Until the timer set in 5212 expires (S2
22), which is adjusted to correspond to two turns of the paper web.

Further, when the drive motor is turned on, the flag F1 is lowered (8214) and the flag F2 is set (S2
16). Flag F2 is a flag that is set by setting the web rotation timer.

Furthermore, the copy prohibition display lights up (8218), and copying operations are prohibited while the paper web is being wound up. In addition,
The copy prohibition according to 8218 is one of a plurality of prohibition requirements, and each prohibition requirement acts as a logical sum.

In this situation, when the wear rotation timer ends (
3222), the drive motor 6 is stopped 5224), the flag F2 is lowered 5226>, the copy prohibition display is turned off (8228), and the copy prohibition due to the paper web being wound is canceled.

Thereafter, winding of the paper web at the time of setting the paper web is performed as shown in F.

Although the details of the web set switch are not specifically mentioned in the above embodiment, it may be configured with an externally operable switch, or it may be a switch that is automatically turned on when the paper web is set. may be configured.

Further, in the above embodiments, winding of the paper web is performed when the paper web is set, but the present invention is not limited to the time of setting the paper web, and may be performed at any arbitrary time as necessary.

[Effect 1] As described above, the present invention is a heat roller cleaning device using a paper web, which is capable of winding up the paper web independently of the copying operation of a copying machine.

As detailed in the Examples, the present invention allows the paper web to be wound up as needed, thereby eliminating any "sag" in the paper web, such as with manual winding.
"Oskew" is prevented. Also, your hands won't get dirty.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the main parts of the embodiment device, and FIG.
FIG. Moreover, FIG. 3 is a schematic side view of the paper web at the time of delivery. FIG. 4 is a main flowchart showing the main operations of the copying machine equipped with the apparatus of this embodiment, and FIG. 5 is a flowchart showing details of the process 8110 in FIG.

Claims (2)

[Claims] (1) A web roller that sets a paper web, a take-up roller that sequentially winds up the paper web set on the web roller, and a roller that is disposed between the web roller and the take-up roller and heats the paper web. a pressure roller that presses against the roller; a drive mechanism that drives the pressure roller and/or the take-up roller; an input unit that commands driving of the drive mechanism independent of the copying operation of the copying machine; and the command. A heat roller cleaning device comprising: control means for driving and controlling the drive mechanism in accordance with the command independently of normal control when the command is input. (2) The heat roller cleaning device according to claim 1, wherein the input means issues the command when setting the paper web, and the command drives the drive mechanism for a predetermined period of time.