JPH05188675A - Method for counting lifetime of exchanged part in recorder - Google Patents

Method for counting lifetime of exchanged part in recorder

Info

Publication number
JPH05188675A
JPH05188675A JP3073219A JP7321991A JPH05188675A JP H05188675 A JPH05188675 A JP H05188675A JP 3073219 A JP3073219 A JP 3073219A JP 7321991 A JP7321991 A JP 7321991A JP H05188675 A JPH05188675 A JP H05188675A
Authority
JP
Japan
Prior art keywords
time
counter
life
counting
counted
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP3073219A
Other languages
Japanese (ja)
Inventor
Shigeru Yamazaki
茂 山崎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP3073219A priority Critical patent/JPH05188675A/en
Publication of JPH05188675A publication Critical patent/JPH05188675A/en
Pending legal-status Critical Current

Links

Landscapes

  • Discharging, Photosensitive Material Shape In Electrophotography (AREA)
  • Control Or Security For Electrophotography (AREA)
  • Accessory Devices And Overall Control Thereof (AREA)

Abstract

PURPOSE:To appropriately integrate in relation to the life of an exchanged part by counting for the exchange time based on the recording time per page of the form. CONSTITUTION:The number of pages per job is denoted by A for a specified paper size, the driving time of machine per job by B, and the life of the exchanged part by C expressed in terms of pages. In this case, the counting means is actuated for each unit time at the value of (y) calculated from the relational expressions, (C/A)XB=x and x/C=y. Namely, the driving time of the driving part 2 such as the motor for a photosensitive body is counted by a CPU 1, and a counter 6 is counted up every y sec of the driving time. The counts of the counter 6 are counted up by the counter mechanism of an E<2>PROM 5 and simultaneously cleared. The total count at the E PROM 5 and the set exchange time are compared by the CPU 1, and the exchange time of the part is indicated by an appropriate means when the time comes.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、記録装置における交換
部品の寿命時間カウント方法に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a life time counting method for replacement parts in a recording apparatus.

【0002】[0002]

【従来の技術】従来、プリンタなどの交換部品における
寿命時間の基となるプリント枚数を積算するトータルカ
ウンタとして、用紙サイズに係らず1プリント動作を1
枚としてカウントする方法がある。
2. Description of the Related Art Conventionally, one printing operation is performed regardless of the paper size as a total counter for accumulating the number of prints, which is the basis of the service life of replacement parts such as printers.
There is a method of counting as a sheet.

【0003】しかしながら上記の方法では、B4,A3
サイズなどの比較的大きなサイズの用紙にプリントした
時と、B5,A4サイズの用紙にプリントした時とで
は、プリント時の機械系の駆動時間が異なり、機械系の
使用時間によって交換部品の寿命を決定している場合に
は、トータルカウンタの積算値と交換部品の寿命に係る
値とが合致しなくなり、ユーザに対して正確な寿命情報
が伝わらない。
However, in the above method, B4, A3
The drive time of the mechanical system at the time of printing differs between when printing on a relatively large size paper such as size and when printing on B5 or A4 size paper, and the life of the replacement part depends on the operating time of the mechanical system. If determined, the integrated value of the total counter does not match the value related to the life of the replacement part, and accurate life information cannot be transmitted to the user.

【0004】一般的には、交換部品の機械系の使用時間
を、CPU(中央演算処理回路)によりメモリ(RAM,
EEPROM)上に積算し、また前記トータルカウンタ
として、電磁式カウンタなどの機械式カウンタを用い、
前記CPUでは、1ジョブ当りの機械系の稼働時間、1
ジョブ当りのプリント数,限定された紙サイズとで、交
換部品の交換時間(寿命)を決定していた。
Generally, the operating time of the mechanical system of the replacement part is stored in a memory (RAM, RAM) by a CPU (central processing unit).
EEPROM) and a mechanical counter such as an electromagnetic counter is used as the total counter.
In the CPU, the operating time of the mechanical system per job, 1
The replacement time (life) of the replacement parts was determined by the number of prints per job and the limited paper size.

【0005】[0005]

【発明が解決しようとする課題】上記の従来技術におい
て、例えば、 ・1ジョブ当りの機械系の稼働時間を30秒、 ・1ジョブ当りのプリントページ数を5ページ/ジョブ
(P/J)、 ・用紙のサイズをA4サイズ横送り(210mm)に限定、 しておき、交換部品を感光体として、その寿命を用紙20
000ページとすると、
In the above prior art, for example, the operating time of the mechanical system per job is 30 seconds, and the number of printed pages per job is 5 pages / job.
(P / J) ・ The size of paper is limited to A4 size horizontal feed (210 mm), and the replacement part is used as a photoconductor, and the life is 20
With 000 pages,

【0006】[0006]

【数2】 [Equation 2]

【0007】となり、感光体の交換時間は33時間とな
る。
Therefore, the replacement time of the photoconductor is 33 hours.

【0008】しかし、例えば1ジョブ当り1ページしか
プリントしないで、1ページのプリントに要する駆動時
間が14秒であるとすると、
However, if, for example, only one page is printed per job and the driving time required to print one page is 14 seconds,

【0009】[0009]

【数3】 [Equation 3]

【0010】となり、トータルカウンタのカウント値が
8571ページであるにも係らず交換要求状態になり、交換
表示やプリント動作停止等が行われることになる。
The count value of the total counter becomes
Even though it is page 8571, it will be in the replacement request state, and replacement display and print operation stop will be performed.

【0011】また紙サイズの違いによってもトータルカ
ウンタのカウント値にばらつきを生じたり、また駆動モ
ータが1個で搬送路が長い構成のものでは、1ジョブ当
りのプリント数が少ないと、所定の交換時間前に交換要
求状態になってしまうという問題がある。
Further, the count value of the total counter may vary due to the difference in paper size, and if the number of prints per job is small in the case of one drive motor and long transport path, a predetermined replacement is required. There is a problem that the exchange request state is set before the time.

【0012】本発明の目的は、交換部品の寿命に係る積
算が適正に行われる、記録装置における交換部品の寿命
時間カウント方法を提供することにある。
It is an object of the present invention to provide a method for counting the life time of replacement parts in a recording apparatus, which properly integrates the lifespan of replacement parts.

【0013】[0013]

【課題を解決するための手段】上記の目的を達成するた
め、本発明は、所定の紙サイズに対して、1ジョブ当り
のページ数をAとし、1ジョブ当りの機械系の駆動時間
をBとし、交換部品の寿命をページ換算してCとして、
数1の関係式で算出したyの値の時間単位ごとにカウン
タ手段を動作させることを特徴とする。
To achieve the above object, the present invention sets the number of pages per job to A for a predetermined paper size, and sets the drive time of the mechanical system per job to B. And convert the service life of the replacement parts into pages, and
It is characterized in that the counter means is operated for each time unit of the value of y calculated by the relational expression of Formula 1.

【0014】[0014]

【作用】上記の手段によれば、記録装置の使用条件に適
合した、用紙1ページ当りの記録動作時間に基づいてカ
ウンタ手段をカウントアップさせるので、使用紙サイズ
の違いや、1ジョブ当りの記録ページ数の多少等による
影響を受けずに適正な寿命時間のカウントがなされる。
According to the above means, the counter means counts up on the basis of the recording operation time per page of the paper, which is suitable for the use condition of the recording apparatus. An appropriate life time is counted without being affected by the number of pages.

【0015】[0015]

【実施例】以下、本発明の実施例を図面に基づいて説明
する。
Embodiments of the present invention will be described below with reference to the drawings.

【0016】図1は本発明による交換部品の寿命時間カ
ウント方法を実施するための記録装置における制御系の
一実施例を示すブロック図であり、1は記録装置の各部
を制御するCPU、2は交換部品の機械系を含む記録装
置の駆動部、3は記録動作等の制御プログラムが記録さ
れているROM、4と5はメモリ手段であるRAMと、
電気的消去可能なPROMのEEPROM(E2PRO
M)、6は電磁式カウンタなどの機械式カウンタからな
るカウンタ手段であるカウンタである。
FIG. 1 is a block diagram showing an embodiment of a control system in a printing apparatus for carrying out the life time counting method for replacement parts according to the present invention, in which 1 is a CPU for controlling each section of the printing apparatus, and 2 is a CPU. A drive unit of a recording apparatus including a mechanical system of replacement parts, 3 is a ROM in which a control program for a recording operation and the like is recorded, 4 and 5 are RAMs that are memory means
Electrically erasable PROM EEPROM (E 2 PRO
M) and 6 are counters which are counter means composed of mechanical counters such as electromagnetic counters.

【0017】前記カウンタ6のカウントアップは、1ペ
ージ当りの駆動時間(記録動作時間)に1回行う。
The counting up of the counter 6 is performed once during the driving time (recording operation time) per page.

【0018】例えば数2で用いた条件に基づいて、感光
体の1ページ当りの駆動時間を算出すると、数2より交
換時間は120000秒であるので、
For example, when the drive time per page of the photoconductor is calculated based on the condition used in the equation 2, the exchange time is 120,000 seconds from the equation 2,

【0019】[0019]

【数4】 [Equation 4]

【0020】となる。[0020]

【0021】従って、CPU1は、感光体の駆動部2の
駆動時間の6秒おきにカウンタ6を1回カウントする。
Therefore, the CPU 1 counts the counter 6 once every 6 seconds of the driving time of the driving unit 2 of the photoconductor.

【0022】上記の実施例の動作を図2のフローチャー
トを参照して説明する。
The operation of the above embodiment will be described with reference to the flowchart of FIG.

【0023】CPU1は、感光体のモータ等の駆動部2
における駆動時間をカウントし(S1)、駆動時間の6秒
ごとに(S2のYES)、カウンタ6をカウントアップす
る(S3)。カウンタ6のカウント値は、E2PROM5
のカウンタ機能でカウントアップされ(S4)、同時にク
リアされる(S5)。
The CPU 1 is a drive unit 2 such as a motor for the photoconductor.
The drive time in (1) is counted (S1), and every 6 seconds of the drive time (YES in S2), the counter 6 is incremented (S3). The count value of the counter 6 is the E 2 PROM 5
Is counted up by the counter function of (S4) and cleared at the same time (S5).

【0024】CPU1は、E2PROM5でのトータル
カウント値と設定された交換時間の値(感光体は120000
秒)とを比較し、交換時間になると(S6のYES)、適
宜の手段によって該当部品が交換時期になったことを表
示する(S7)。そして、CPU1は、感光体が交換され
たことを示す交換クリア信号を受けると(S8のYE
S)、E2PROM5のカウント値をクリアする(S9)。
The CPU 1 uses the total count value in the E 2 PROM 5 and the value of the set exchange time (for the photoconductor, 120000).
Second), and when the replacement time comes (YES in S6), it is displayed by the appropriate means that the corresponding part has reached the replacement time (S7). When the CPU 1 receives the exchange clear signal indicating that the photoconductor has been exchanged (YES in S8).
S), the count value of the E 2 PROM 5 is cleared (S9).

【0025】上記の説明では感光体の交換時期の表示動
作を例にしたが、記録装置を構成する各種チャージャ,
オゾンフィルタ,シールド部材等に対しても設定した交
換時間の検知,表示が同様にして行える。
In the above description, the display operation of the photosensitive member replacement time is taken as an example, but various chargers constituting the recording device,
The set replacement time for the ozone filter, shield member, etc. can be detected and displayed in the same way.

【0026】尚、上記の実施例では、電源が切られた時
にバックアップ用バッテリィがなくても、メモリデータ
が消えないE2PROM5を用いたが、バックアップ用
バッテリィを用いればRAM4内のカウンタ機能を使用
してもよい。
In the above embodiment, the E 2 PROM 5 which does not lose the memory data even if there is no backup battery when the power is turned off is used. However, if the backup battery is used, the counter function in the RAM 4 can be realized. May be used.

【0027】[0027]

【発明の効果】以上説明したように、本発明によれば、
用紙1ページ当りの記録動作時間に基づいて交換時間
(寿命時間)に対するカウントが行われるので、紙サイズ
や1ジョブ当りページ数の多少等に関係なく適正な寿命
時間のカウントがなされる記録装置における交換部品の
寿命時間カウント方法を提供できる。
As described above, according to the present invention,
Replacement time based on the recording operation time per page of paper
Since the (life time) is counted, it is possible to provide a method for counting the life time of a replacement part in a recording apparatus, in which the life time is properly counted regardless of the paper size and the number of pages per job.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明による交換部品の寿命時間カウント方法
を実施するための記録装置における制御系の一実施例を
示すブロック図である。
FIG. 1 is a block diagram showing an embodiment of a control system in a recording apparatus for carrying out a life time counting method for replacement parts according to the present invention.

【図2】本実施例の動作に係るフローチャートである。FIG. 2 is a flowchart related to the operation of this embodiment.

【符号の説明】[Explanation of symbols]

1…CPU、 2…駆動部、 3…ROM、 4…RA
M、 5…E2PROM、 6…カウンタ手段(カウン
タ)。
1 ... CPU, 2 ... Drive unit, 3 ... ROM, 4 ... RA
M, 5 ... E 2 PROM, 6 ... Counter means (counter).

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 所定の紙サイズに対して、1ジョブ当り
のページ数をAとし、1ジョブ当りの機械系の駆動時間
をBとし、交換部品の寿命をページ換算してCとして、 【数1】 の関係式で算出したyの値の時間単位ごとにカウンタ手
段を動作させることを特徴とした記録装置における交換
部品の寿命時間カウント方法。
1. For a given paper size, the number of pages per job is A, the drive time of the mechanical system per job is B, and the life of replacement parts is converted into pages and is C. 1] A method for counting the life time of a replacement part in a recording apparatus, characterized in that the counter means is operated for each time unit of the value of y calculated by the relational expression.
JP3073219A 1991-04-05 1991-04-05 Method for counting lifetime of exchanged part in recorder Pending JPH05188675A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3073219A JPH05188675A (en) 1991-04-05 1991-04-05 Method for counting lifetime of exchanged part in recorder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3073219A JPH05188675A (en) 1991-04-05 1991-04-05 Method for counting lifetime of exchanged part in recorder

Publications (1)

Publication Number Publication Date
JPH05188675A true JPH05188675A (en) 1993-07-30

Family

ID=13511838

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3073219A Pending JPH05188675A (en) 1991-04-05 1991-04-05 Method for counting lifetime of exchanged part in recorder

Country Status (1)

Country Link
JP (1) JPH05188675A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7917044B2 (en) * 2006-08-28 2011-03-29 Canon Kabushiki Kaisha Consumable component selection based on operational environment or condition

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7917044B2 (en) * 2006-08-28 2011-03-29 Canon Kabushiki Kaisha Consumable component selection based on operational environment or condition

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