Abstract:
A method for controlling an inkjet apparatus employs a pluggable module which includes a memory, the inkjet apparatus being connected to a computer/display arrangement. The method includes the steps of: determining when the pluggable module has been installed in the inkjet apparatus; determining if a printer driver indication in the module memory notes a newer driver procedure than the current driver procedure being used with the inkjet apparatus; and if yes, displaying a message indicating availability of the newer driver procedure. The method further enables the occurrence of a low ink indication from a pluggable ink module to automatically cause the display of a reorder message. The method also enables any selected message included in the memory to be automatically displayed upon insertion of the pluggable module.

Description:
This Application is a Continuation-In-Part of application Ser. No. 08/651,221, filed May 22, 1996, now U.S. Pat. No. 5,682,140 and application Ser. No. 08/845,800, filed Apr. 25, 1997, now U.S. Pat. No. 5,930,553. 
    
    
     FIELD OF THE INVENTION 
     This invention relates to printers and, more particularly, to a replaceable consumable part therefor with a resident memory which includes means for causing a message or messages to be triggered for display upon occurrence of an event or upon installation of the part. 
     BACKGROUND OF THE INVENTION 
     Substantially all present-day copiers, printers, plotters, etc., require entry of usage, calibration and other data. In regards to ink jet printers, it has been proposed that printheads incorporate a parameter memory for storage of operating parameters to be used by the printer for calibration purposes. Such parameters include: drop generator driver frequency, ink pressure and drop charging values (see &#34;Storage of Operating Parameters in Memory Integral with Print Head&#34;, Lonis, Xerox Disclosure Journal, Volume 8, No. 6, November/December 1983, page 503). 
     U.S. Pat. No. 5,138,344 to Ujita, entitled &#34;Ink Jet Apparatus and Ink Jet Cartridge Therefor&#34;, indicates that an ink-containing replaceable cartridge can be provided with an integral information device (i.e., a resistor element, magnetic medium, bar code, integrated circuit or ROM), for storage of information relating to control parameters for an ink jet printer. 
     U.S. Pat. No. 5,365,312 to Hillmann et al., entitled &#34;Arrangement for Printer Equipment Monitoring Reservoirs that Contain Printing Medium&#34;, describes the use of memory devices with integral ink reservoirs for storage of ink consumption data (for use by a coupled ink jet printer). European patent EP 0 720 916, entitled &#34;Ink Supply Identification System for a Printer&#34; describes the use of an ink supply having an integral EEPROM which is utilized to store data regarding the identity of the ink supply and its fill level. 
     The prior art further teaches the use of consumable parts with integral memory for use in electrophotographic printers. In U.S. Pat. No. 5,021,828 to Yamaguchi et al., entitled &#34;Copying Apparatus having a Consumable Part&#34;, a toner cartridge is disclosed which includes a memory for storing data regarding to the state of consumption of toner in the cartridge. U.S. Pat. Nos. 4,961,088 to Gilliland et al.; 4,803,521 to Honda; 5,184,181 to Kurando et al.; and 5,272,503 to LeSueur et al. all describe various replaceable toner cartridges for use in electrophotographic printers. Each cartridge incorporates a memory device for storing parameter data regarding the cartridge. 
     Ink jet printers, consumables therefor and software usable therewith are continuously being improved. A continuing problem in the marketing of such devices, consumables and software is informing the purchasing public of the improvements, their availability, price, and how they relate to both currently and previously available products. Further, when a consumable is exhausted, the user must either have a readily available replacement or know where to go to acquire a replacement. Often, data regarding sources for replacements is contained in manuals and pamphlets which accompany the consumable and which are easily mislaid or lost. 
     Accordingly, it is an object of this invention to provide a replaceable cartridge for use in an ink jet apparatus, which cartridge includes memory with a user message trigger that triggers communication of a user message and is activated upon the occurrence of an event. 
     It is another object of this invention to provide a replaceable cartridge for use in an ink jet apparatus, which cartridge includes memory with a user message that is displayed upon installation of the cartridge. 
     SUMMARY OF THE INVENTION 
     A method for controlling an inkjet apparatus employs a pluggable module which includes a memory, the inkjet apparatus being connected to a computer/display arrangement. The method includes the steps of: determining when the pluggable module has been installed in the inkjet apparatus; determining if a printer driver indication in the module memory notes a newer driver procedure than the current driver procedure being used with the inkjet apparatus; and if yes, displaying a message indicating availability of the newer driver procedure. The method further enables the occurrence of a low ink indication from a pluggable ink module to automatically cause the display of a reorder message. The method also enables any selected message included in the memory to be automatically displayed upon insertion of the pluggable module. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     FIG. 1 is a perspective view of an inkjet printer (with cover removed) which incorporates the invention. 
     FIG. 2 is a block diagram of the inkjet printer of FIG. 1, showing replaceable elements therefor, including an ink cartridge and a printhead. 
     FIG. 3 is a block diagram showing connection of the components within the inkjet printer of FIG. 1. 
     FIG. 4 is a logic flow diagram of the method of the invention which enables display of a driver update message. 
     FIG. 5 is a logic flow diagram of the method of the invention which enables display of replaceable module reorder data. 
     FIG. 6 is a logic flow diagram of the method of the invention which enables either display of a stored message in memory or an input of a data to enable adjustment of an inkjet service station in the inkjet apparatus. 
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
     FIG. 1 illustrates a perspective view of an inkjet printer 1 which incorporates the invention. A tray 2 holds a supply of input paper or other print media. When a printing operation is initiated, a sheet of paper is fed into printer 1 and is then brought around in a U-direction towards an output tray 3. The sheet is stopped in a print zone 4 and a scanning cartridge 5, containing plural removable color printheads 6 is scanned across the sheet for printing a swath of ink thereon. The process repeats until the entire sheet has been printed, at which point it is ejected onto output tray 3. 
     Printheads 6 are, respectively, fluidically coupled to four removable ink cartridges 7 holding, for example, cyan, magenta, yellow and black inks, respectively. Since black ink tends to be depleted most rapidly, the black ink cartridge has a larger capacity than the other ink cartridges. As will be understood from the description which follows, each printhead and ink cartridge is provided with an integral memory device which stores data that is used by printer 1 to control its printing operations and to present messages via a display for user review. 
     In FIG. 2, a host processor 10 connects to inkjet printer 1 and provides both control and data signals therefor. Host processor 10 is adapted, in the known manner, to receive a memory media cassette 12 which includes operating program data for control of inkjet printer 1. 
     As indicated above, inkjet printer 1 is capable of receiving a plurality of pluggable ink cartridges containing one or more colors for use by the printhead. Ink cartridge 14 includes a reservoir 15 which holds a supply of ink, a fluidic coupler 16 and an electrical connector 18, both of which couple to mating connectors within inkjet printer 1 upon installation of ink cartridge 14. A memory chip 20, installed on ink cartridge 14, is coupled to connector 18 and upon insertion of ink cartridge 14, is electrically coupled to a microprocessor within inkjet printer 1. 
     A printhead 30 also includes a fluidic coupler region 32, a resident memory 34 and an electrical connector 36 which makes connection to memory 34, as well as other sense and control devices within printhead 30. 
     FIG. 3 illustrates interconnections between a microprocessor 40, which controls the operation of inkjet printer 1, ink cartridge 14 and printhead 30. An ink flow path 42 provides a flow path between ink cartridge 14 and printhead 30. 
     Memory chip 20 on ink cartridge 14 includes a variety of parameters recorded therein, some of which are specifically derived for use with the specific ink contained within cartridge 14 and others of which are employed, more generally, for control of ink printer 1. Memory chip 20 also includes a further category of data which enables messages to be automatically displayed to a user upon occurrence of either a predetermined event or upon initial installation of ink cartridge 14 into ink printer 1. For example, one such message may be an indication of availability of new printer driver software that is a newer version than the printer driver installed on inkjet printer 1; a message indicating a need for replacement of ink cartridge 14 upon the determination of a low ink level therein and a further display the reorder part number and address from which the part can be ordered; a message regarding a new product offering which is displayed upon initial insertion of ink cartridge 14; or parameters to be used by ink jet printer 1 to control operation of an integral service station therein. 
     Turning to FIG. 4, the logic flow diagram shown therein illustrates the procedure of the invention when memory chip 20 includes a new printer driver identifier code. Upon installation of the new ink cartridge (decision box 50), microprocessor 40 causes the data recorded on memory chip 20 to be read, including any new printer driver identifier code recorded therein (box 52). The new printer driver identifier code is then compared with the identifier code of the current printer driver installed in printer 1 to determine if the new identifier code indicates a more recent printer driver version than the current identifier code. This determination can be readily made by (i) assuring that each identifier code includes a date portion that indicates the date of release of the identifier code, a later released code version being more updated than an earlier released version or (ii) by just assuring that version numbers increase sequentially. 
     If the new printer driver identifier code is not more recent than the current identifier code, the procedure ends. If, by contrast, the new printer driver identifier code is more recent than the identifier of the current printer driver code, the procedure moves to box 56 wherein a message is displayed on display screen 44, indicating availability of the new printer driver. A listing is may also be provided of either an internet address or a telephone number where the new printer driver can be ordered. Further, the data read from the memory cartridge can automatically cause the printer&#39;s host processor to connect to the manufacturer&#39;s Internet website, where the user would have the opportunity of directly downloading an updated driver. 
     All of the above actions take place automatically upon insertion of ink cartridge 14 into ink jet printer 1 and require no action by the user, other than installation of the ink cartridge. Since ink cartridges are replaced relatively often, the printer driver availability message is assured of getting to a targeted group of users who already have an ink jet printer that is adapted to utilize the updated printer driver software. 
     In FIG. 5, a procedure is illustrated which enables printer 1 to display a message indicating a low ink level in ink cartridge 14; to provide a reorder part number; and to print out an order blank upon a customer input. In specific, microprocessor 40 monitors the level of remaining ink in ink cartridge 14 (box 60) on a continuing basis, using an ink level monitor built into the cartridge. Upon occurrence of a low ink indication from the level monitor (decision box 62), microprocessor 40 causes display screen 44 to display a low ink warning and, in addition, a reorder part number. Upon selection by the user of an order option (decision box 66), which may occur by the user &#34;clicking&#34; on the reorder part number indicated on display screen 44, printer 1 is caused to output an order sheet with all of the necessary details to accomplish an order of a replacement ink cartridge (box 68). As further alternatives, an Internet website could be automatically accessed to enable entry of an immediate order; the computer could prompt the user for his/her zip code and then provide information regarding a nearest dealer to contact, etc. 
     In FIG. 6, several further examples of message/data outputs from memory cartridge 20 are illustrated. When a new ink cartridge is installed (decision box 70), microprocessor determines whether a mailbox flag is or is not set (decision box 73). If the flag is set, a mailbox message may be accessed from memory 20 and displayed on display screen 44 (box 74). The mailbox message may notify the user to contact the manufacturer (over the internet or via telephone) for receipt of a promotion, service, user hints, free offers, additional product offerings, etc. 
     In addition to causing a message to be displayed for user viewing, the invention also enables data to be downloaded from memory 20 into microprocessor 40, for control of processes within printer 1. As is known to those skilled in the art, an inkjet printer employs a &#34;service&#34; station to enable continued and reliable operation of an inkjet printhead. The service station (not shown in the drawings) provides both a wiping action and a capping action when the printhead is in the park position. Various details of the service station operation are controlled by parameters stored within firmware housed in microprocessor 40. 
     Thus, as shown in FIG. 6, upon installation of the new ink cartridge (box 70), microprocessor 40 determines whether the service station flag is set in memory 20 (decision box 76). If yes, a service station control procedure identifier is accessed from cartridge memory 20 (box 78). That identifier is then used to address firmware within microprocessor 40 which stores various parameters to be used in conjunction with the operation of the service station. Thereafter, each time a service station requires operation, the new routine identifier is employed to access new parameters for control of the service station operation. 
     It should be understood that the foregoing description is only illustrative of the invention. Various alternatives and modifications can be devised by those skilled in the art without departing from the invention. For instance, a language designation code can be stored in memory 20 and upon installation, automatically read out. If the driver/user interface in the printer utilizes a different language, a query could be displayed to the user enabling a choice to be made regarding the language of further message displays. Thus if the cartridge is purchased in a Spanish speaking country and used on a printer in an English speaking country, the user will be offered the opportunity to alter the language in which user messages are displayed. Accordingly, the present invention is intended to embrace all such alternatives, modifications and variances which fall within the scope of the appended claims.